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1021
1022openapi: 3.1.0
info:
version: "2.8"
title: Pirate Weather API
description: Pirate Weather provides an open, free, and documented source of government weather data.
termsOfService: https://pirate-weather.apiable.io/terms
contact:
email: mail@pirateweather.net
license:
name: Apache License 2.0
url: https://github.com/Pirate-Weather/pirateweather/blob/main/LICENSE.md
externalDocs:
description: Full API reference
url: https://pirate-weather.apiable.io/full-api-reference
tags:
- name: Weather
description: Pirate Weather provides an open, free, and documented source of government weather data.
paths:
"/forecast/{api_key}/{lat_and_long_or_time}":
get:
tags:
- Weather
operationId: Weather
summary: Make a request to Pirate Weather
description: Fetch a weather forecast or get historical weather data based on input latitude and longitude.
parameters:
- name: api_key
in: path
description: Pirate Weather Authentication Token.
required: true
schema:
type: string
- name: lat_and_long_or_time
in: path
description: A single comma-delimited string containing Latitude and Longitude information. Optionally, either a UNIX timestamp, ISO 8601 date string, or number of seconds before present can be added.
required: true
schema:
type: string
- name: exclude
in: query
description: Exclude some keys (hourly, minutely, daily, flags, alerts), models (nbm, hrrr, gefs), or detailed text summaries (summary) from the Pirate Weather forecast response.
schema:
type: string
enum:
- summary
- currently
- minutely
- hourly
- daily
- flags
- alerts
- nbm
- hrrr
- gefs
- name: extend
in: query
description: Fetch the next 168 hours (7 days) worth of hourly data, instead of the next 24.
schema:
type: string
enum:
- hourly
- name: extraVars
in: query
description: Add additional variables to the response.
schema:
type: string
enum:
- stationPressure
- name: lang
in: query
description: Returns the forecast summaries in the desired language.
schema:
type: string
enum:
- ar
- az
- be
- bg
- bn
- bs
- ca
- cs
- cy
- da
- de
- el
- en
- eo
- es
- et
- fa
- fi
- fr
- ga
- gd
- he
- hi
- hr
- hu
- id
- is
- it
- ja
- ka
- kn
- ko
- kw
- lv
- ml
- mr
- nl
- no
- pa
- pl
- pt
- ro
- ru
- sk
- sl
- sr
- sv
- ta
- te
- tet
- tr
- uk
- ur
- vi
- x-pig-latin
- zh
- zh-tw
- name: units
in: query
description: Return the weather forecast data in the requested unit system.
schema:
type: string
- name: version
in: query
description: Include fields which were not part of the Dark Sky API but were introduced in API version 2.
schema:
type: integer
- name: tmextra
in: query
description: Include the full set of parameters in recent time machine requests.
schema:
type: integer
- name: icon
in: query
description: Changes the icon field to return icons which aren't part of the Dark Sky icon set.
schema:
type: string
responses:
"400":
description: "Bad Request. Longitude or Latitude is invalid."
content:
application/json:
schema:
properties:
detail:
type: string
description: The error message
example: "Invalid Location Specification"
"401":
description: "API key does not have access to the queried endpoint or if you did not include an API key in your request."
content:
text/html:
schema:
type: string
example: Kong Error Invalid authentication credentials.
"404":
description: "You queried the API using an invalid route or if you do not supply a latitude or longitude in your request."
content:
application/json:
schema:
properties:
message:
type: string
description: The error message.
example: "no Route matched with those values"
"429":
description: "Your your API key has hit the quota for the month."
content:
text/html:
schema:
type: string
example: Kong Error API rate limit exceeded.
"500":
description: "Internal Server Error."
content:
application/json:
schema:
properties:
message:
type: string
description: The error message.
example: "Internal Server Error"
"502":
description: "Bad Gateway."
content:
application/json:
schema:
properties:
message:
type: string
description: The error message.
example: "An invalid response was received from the upstream server"
"200":
description: Success
content:
application/json:
schema:
properties:
latitude:
$ref: "#/components/schemas/latitude"
longitude:
$ref: "#/components/schemas/longitude"
timezone:
$ref: "#/components/schemas/timezone"
offset:
$ref: "#/components/schemas/offset"
elevation:
$ref: "#/components/schemas/elevation"
currently:
$ref: "#/components/schemas/currently"
minutely:
$ref: "#/components/schemas/minutely"
hourly:
$ref: "#/components/schemas/hourly"
daily:
$ref: "#/components/schemas/daily"
alerts:
$ref: "#/components/schemas/alerts"
flags:
$ref: "#/components/schemas/flags"
servers:
- url: https://api.pirateweather.net
description: Production forecast data server
- url: https://dev.pirateweather.net
description: Development forecast data server
- url: https://timemachine.pirateweather.net
description: Production historic data server
components:
schemas:
latitude:
type: number
description: The requested latitude.
example: 37.3035
longitude:
type: number
description: The requested longitude.
example: -89.523
timezone:
type: string
description: The timezone name for the requested location.
example: America/Chicago
offset:
type: number
description: The timezone offset in hours.
example: -6
elevation:
type: number
description: The elevation in meters of the forecast point.
example: 105
currently:
type: object
description: A block containing the current weather for the requested location.
properties:
time:
type: integer
format: int32
description: The current time in UNIX format.
example: 1749320100
summary:
type: string
description: A human-readable summary of the current weather.
example: Overcast
icon:
type: string
description: An icon representing the current weather.
example: cloudy
nearestStormDistance:
type: number
description: The distance to the nearest storm in kilometers.
example: 29.84
nearestStormBearing:
type: integer
format: int32
description: The direction to the nearest storm in degrees.
example: 135
precipIntensity:
type: number
description: The intensity of liquid water equivalent precipitation in millimeters per hour.
example: 0
precipProbability:
type: number
description: The probability of precipitation occurring.
example: 0.38
precipIntensityError:
type: number
description: The standard deviation of the precipitation intensity.
example: 1.49
precipType:
type: string
description: The type of precipitation occurring.
example: none
temperature:
type: number
description: The air temperature.
example: 24.53
apparentTemperature:
type: number
description: The apparent temperature (feels like).
example: 27.99
dewPoint:
type: number
description: The dew point temperature.
example: 19.96
humidity:
type: number
description: The relative humidity.
example: 0.88
pressure:
type: number
description: The sea-level pressure in hectopascals.
example: 1009.92
windSpeed:
type: number
description: The wind speed.
example: 7.42
windGust:
type: number
description: The wind gust speed.
example: 9.78
windBearing:
type: number
description: The direction of the wind in degrees.
example: 195
cloudCover:
type: number
description: The fraction of the sky covered by clouds.
example: 0.93
uvIndex:
type: number
description: The UV index.
example: 3
visibility:
type: number
description: The visibility in kilometers.
example: 13.62
ozone:
type: number
description: The ozone concentration in Dobson units.
example: 304.41
smoke:
type: number
description: The amount of near-surface smoke in ug/m^3. Only returned when version>1.
example: 0.08
fireIndex:
type: number
description: The Fosburg fire index. Only returned when version>1.
example: 5.39
feelsLike:
type: number
description: The apparent temperature reported by NBM and gfs. Only returned when version>1.
example: 23.23
currentDayIce:
type: number
description: The ice precipitation that has accumulated so far during the day, from midnight until the forecast request time. Only returned when version>1.
example: 0
currentDayLiquid:
type: number
description: The liquid precipitation that has accumulated so far during the day, from midnight until the forecast request time. Only returned when version>1.
example: 0.0508
currentDaySnow:
type: number
description: The snow precipitation that has accumulated so far during the day, from midnight until the forecast request time. Only returned when version>1.
example: 0
stationPressure:
type: number
description: The station pressure hectopascals. Only returned when extraVars contains stationPressure.
example: 0
solar:
type: number
description: The Downward Short-Wave Radiation Flux measured in W/m^2. Only returned when version>1.
example: 378.4
cape:
type: integer
format: int32
description: The Convective Available Potential Energy measured in J/kg. Only returned when version>1.
example: 0
minutely:
type: object
description: A block containing minute-by-minute precipitation intensity for the next 60 minutes.
properties:
summary:
type: string
description: A summary of the minute-by-minute forecast.
example: Overcast for the hour.
icon:
type: string
description: An icon representing the minute-by-minute forecast.
example: cloudy
data:
type: array
items:
type: object
properties:
time:
type: integer
format: int32
description: The time of the data point in UNIX format.
example: 1749320100
precipIntensity:
type: number
description: The intensity of precipitation.
example: 0
precipProbability:
type: number
description: The probability of precipitation.
example: 0.38
precipIntensityError:
type: number
description: The standard deviation of the precipitation intensity.
example: 1.49
precipType:
type: string
description: The type of precipitation occurring.
example: none
hourly:
type: object
description: A block containing hour-by-hour forecasted conditions for the next 48 hours. If `extend=hourly` is used, the hourly block gives hour-by-hour forecasted conditions for the next 168 hours.
properties:
summary:
type: string
description: A summary of the hourly forecast.
example: Light rain until tomorrow morning.
icon:
type: string
description: An icon representing the hourly forecast.
example: rain
data:
type: array
items:
type: object
properties:
time:
type: integer
format: int32
description: The time of the data point in UNIX format.
example: 1749319200
summary:
type: string
description: A summary of the weather.
example: Drizzle
icon:
type: string
description: An icon representing the weather.
example: rain
precipIntensity:
type: number
description: The intensity of precipitation.
example: 0.254
precipProbability:
type: number
description: The probability of precipitation.
example: 0.49
precipIntensityError:
type: number
description: The standard deviation of the precipitation intensity.
example: 0.9792
precipAccumulation:
type: number
description: The total amount of precipitation.
example: 0.0254
precipType:
type: string
description: The type of precipitation occurring.
example: rain
temperature:
type: number
description: The air temperature.
example: 23.35
apparentTemperature:
type: number
description: The apparent temperature (feels like).
example: 26.16
dewPoint:
type: number
description: The dew point temperature.
example: 20.91
humidity:
type: number
description: The relative humidity.
example: 0.87
pressure:
type: number
description: The air pressure.
example: 1009.92
stationPressure:
type: number
description: The station pressure. Only returned when extraVars contains stationPressure.
example: 1009.92
windSpeed:
type: number
description: The wind speed.
example: 7.2
windGust:
type: number
description: The wind gust speed.
example: 15.84
windBearing:
type: number
description: The direction of the wind in degrees.
example: 190
cloudCover:
type: number
description: The fraction of the sky covered by clouds.
example: 0.94
uvIndex:
type: number
description: The UV index.
example: 1.67
visibility:
type: number
description: The visibility in kilometers.
example: 12.69
ozone:
type: number
description: The ozone concentration in Dobson units.
example: 301.99
smoke:
type: number
description: The amount of near-surface smoke in ug/m3. Only returned when version>1.
example: 0.1
liquidAccumulation:
type: number
description: The amount of liquid precipitation expected. Only returned when version>1.
example: 0.0254
snowAccumulation:
type: number
description: The amount of snow precipitation expected. Only returned when version>1.
example: 0
iceAccumulation:
type: number
description: The amount of ice precipitation expected. Only returned when version>1.
example: 0
nearestStormDistance:
type: number
description: The distance to the nearest storm.
example: 0
nearestStormBearing:
type: integer
format: int32
description: The direction to the nearest storm.
example: 0
fireIndex:
type: number
description: The Fosburg fire index. Only returned when version>1.
example: 4.49
feelsLike:
type: number
description: The apparent temperature reported by NBM and gfs. Only returned when version>1.
example: 23.29
solar:
type: number
description: The Downward Short-Wave Radiation Flux measured in W/m^2. Only returned when version>1.
example: 378.4
cape:
type: integer
format: int32
description: The Convective Available Potential Energy measured in J/kg. Only returned when version>1.
example: 0
daily:
type: object
description: A block containing day-by-day forecasted conditions for the next 7 days.
properties:
summary:
type: string
description: A summary of the daily forecast.
example: Light rain today and Monday and Friday and next Saturday, with high temperatures peaking at 31°C on Wednesday.
icon:
type: string
description: An icon representing the daily forecast.
example: rain
data:
type: array
items:
type: object
properties:
time:
type: integer
format: int32
description: The time of the data point in UNIX format.
example: 1749272400
summary:
type: string
description: A summary of the weather.
example: Light rain starting in the afternoon.
icon:
type: string
description: An icon representing the weather.
example: rain
dawnTime:
type: integer
format: int32
description: The time when the sun is a specific (6 degrees) height above the horizon after sunrise. Only returned when version>1.
example: 1749290785
sunriseTime:
type: integer
format: int32
description: The time of sunrise in UNIX format.
example: 1749292665
sunsetTime:
type: integer
format: int32
description: The time of sunset in UNIX format.
example: 1749345397
duskTime:
type: integer
format: int32
description: The time when the sun is a specific (6 degrees) height above the horizon before sunset. Only returned when version>1.
example: 1749347279
moonPhase:
type: number
description: The fractional lunation number for the given day.
example: 0.38
precipIntensity:
type: number
description: The intensity of precipitation.
example: 0.2117
precipIntensityMax:
type: number
description: The maximum intensity of precipitation.
example: 2.0322
precipIntensityMaxTime:
type: integer
format: int32
description: The time when the maximum precipitation intensity occurs in UNIX format.
example: 1749355200
precipProbability:
type: number
description: The probability of precipitation.
example: 0.49
precipAccumulation:
type: number
description: The total amount of precipitation.
example: 0.508
precipType:
type: string
description: The type of precipitation occurring.
example: rain
temperatureHigh:
type: number
description: The daytime high temperature.
example: 24.35
temperatureHighTime:
type: integer
format: int32
description: The time when the high temperature occurs in UNIX format.
example: 1749337200
temperatureLow:
type: number
description: The overnight low temperature.
example: 19.48
temperatureLowTime:
type: integer
format: int32
description: The time when the low temperature occurs in UNIX format.
example: 1749380400
apparentTemperatureHigh:
type: number
description: The apparent daytime high temperature (feels like).
example: 26.16
apparentTemperatureHighTime:
type: integer
format: int32
description: The time when the apparent high temperature occurs in UNIX format.
example: 1749319200
apparentTemperatureLow:
type: number
description: The apparent overnight low temperature (feels like).
example: 21.18
apparentTemperatureLowTime:
type: integer
format: int32
description: The time when the apparent low temperature occurs in UNIX format.
example: 1749376800
dewPoint:
type: number
description: The dew point temperature.
example: 20.21
humidity:
type: number
description: The relative humidity.
example: 0.91
pressure:
type: number
description: The air pressure.
example: 1009.87
windSpeed:
type: number
description: The wind speed.
example: 7
windGust:
type: number
description: The wind gust speed.
example: 14.57
windGustTime:
type: integer
format: int32
description: The time when the maximum wind gust occurs in UNIX format.
example: 1749333600
windBearing:
type: number
description: The direction of the wind in degrees.
example: 244
cloudCover:
type: number
description: The fraction of the sky covered by clouds.
example: 0.68
uvIndex:
type: number
description: The max UV index during that day.
example: 4.45
uvIndexTime:
type: integer
format: int32
description: The time when the maximum UV index occurs in UNIX format.
example: 1749333600
visibility:
type: number
description: The visibility in kilometers.
example: 13.26
temperatureMin:
type: number
description: The minimum temperature.
example: 19.1
temperatureMinTime:
type: integer
format: int32
description: The time when the minimum temperature occurs in UNIX format.
example: 1749297600
temperatureMax:
type: number
description: The maximum temperature.
example: 24.41
temperatureMaxTime:
type: integer
format: int32
description: The time when the maximum temperature occurs in UNIX format.
example: 1749340800
apparentTemperatureMin:
type: number
description: The minimum apparent temperature (feels like).
example: 22.03
apparentTemperatureMinTime:
type: integer
format: int32
description: The time when the minimum apparent temperature occurs in UNIX format.
example: 1749290400
apparentTemperatureMax:
type: number
description: The maximum apparent temperature (feels like).
example: 26.33
apparentTemperatureMaxTime:
type: integer
format: int32
description: The time when the maximum apparent temperature occurs in UNIX format.
example: 1749344400
smokeMax:
type: number
description: The maximum amount of near-surface smoke in ug/m^3. Only returned when version>1.
example: 0.24
smokeMaxTime:
type: integer
format: int32
description: The time when the maximum near-surface smoke occurs in UNIX format. Only returned when version>1.
example: 1749333600
liquidAccumulation:
type: number
description: The amount of liquid precipitation expected. Only returned when version>1.
example: 0.508
snowAccumulation:
type: number
description: The amount of snow precipitation expected. Only returned when version>1.
example: 0
iceAccumulation:
type: number
description: The amount of ice precipitation expected. Only returned when version>1.
example: 0
fireIndexMax:
type: number
description: The maximum Fosburg fire index. Only returned when version>1.
example: 8.2
fireIndexMaxTime:
type: integer
format: int32
description: The time when the maximum Fosburg fire index occurs in UNIX format. Only returned when version>1.
example: 1749344400
solar:
type: number
description: The Downward Short-Wave Radiation Flux measured in W/m^2. Only returned when version>1.
example: 392.78
solarMax:
type: number
description: The time when the maximum solar occurs in UNIX format. Only returned when version>1.
example: 1761422400
cape:
type: integer
format: int32
description: The Convective Available Potential Energy measured in J/kg. Only returned when version>1.
example: 0
capeMax:
type: integer
format: int32
description: The time when the maximum CAPE occurs in UNIX format. Only returned when version>1.
example: 1761368400
alerts:
type: array
description: A block containing any severe weather alerts for the current location.
items:
type: object
properties:
title:
type: string
description: A brief description of the alert.
example: Flood Warning
regions:
type: array
description: An array of strings containing all regions included in the weather alert.
items:
type: string
example: Alexander, IL
severity:
type: string
description: The severity of the weather alert.
example: Severe
time:
type: integer
format: int32
description: The time the alert was issued in UNIX format.
example: 1715357220
expires:
type: integer
format: int32
description: The time the alert expires in UNIX format.
example: 1715451300
description:
type: string
description: A detailed description of the alert.
example: "...The Flood Warning is extended for the following river in Illinois...Missouri...Kentucky... Mississippi River at Cape Girardeau, Thebes, and Hickman. .With recent heavy rainfall, waters are rising on the Mississippi River with crests in minor flood at Cape Girardeau, Thebes, and Hickman early next week. For the Mississippi River...including Cape Girardeau, Thebes, Hickman...Minor flooding is forecast. * WHAT...Minor flooding is occurring and minor flooding is forecast. * WHERE...Mississippi River at Cape Girardeau. * WHEN...Until Friday, May 17. * IMPACTS...At 36.0 feet, The flood gate on Themis Street closes. * ADDITIONAL DETAILS... - At 11:00 AM CDT Friday the stage was 34.4 feet. - Forecast...The river is expected to rise to a crest of 36.0 feet Monday morning. It will then fall below flood stage late Thursday evening. - Flood stage is 32.0 feet."
uri:
type: string
description: A HTTP(S) URL for more information about the alert.
example: https://alerts.weather.gov/search?id=urn:oid:2.49.0.1.840.0.f24c2a5f205f53c0f443861ac62244cc6aecfc9c.002.1
flags:
type: object
description: A block containing miscellaneous data for the API request.
properties:
sources:
type: array
description: The models used to generate the forecast.
items:
type: string
example: ETOPO1
sourceTimes:
type: object
description: The times in UTC when the models were last updated.
properties:
hrrr_0-18:
type: string
description: The time the HRRR model for 0-18 hours was last updated.
example: 2025-06-07 16Z
hrrr_subh:
type: string
description: The time the HRRR sub-hourly model was last updated.
example: 2025-06-07 15Z
nbm:
type: string
description: The time the NBM model was last updated.
example: 2025-06-07 15Z
nbm_fire:
type: string
description: The time the NBM fire model was last updated.
example: 2025-06-07 12Z
hrrr_18-48:
type: string
description: The time the HRRR model for 18-48 hours was last updated.
example: 2025-06-07 12Z
gfs:
type: string
description: The time the GFS model was last updated.
example: 2025-06-07 12Z
gefs:
type: string
description: The time the GEFS model was last updated.
example: 2025-06-07 00Z
nearest-station:
type: integer
format: int32
description: The distance to the nearest station (not implemented, always returns 0).
example: 0
units:
type: string
description: The units used in the forecasts.
example: ca
version:
type: string
description: The version of Pirate Weather used to generate the forecast.
example: V2.8
sourceIDX:
type: object
description: The X, Y coordinate and the lat/long coordinate for each model used to generate the forecast. Only returned when version>1.
properties:
hrrr:
type: object
properties:
x:
type: integer
format: int32
description: The X coordinate for the HRRR model.
example: 1134
y:
type: integer
format: int32
description: The Y coordinate for the HRRR model.
example: 495
lat:
type: number
description: The latitude coordinate for the HRRR model.
example: 37.31
long:
type: number
description: The longitude coordinate for the HRRR model.
example: -89.53
nbm:
type: object
properties:
x:
type: integer
format: int32
description: The X coordinate for the NBM model.
example: 1483
y:
type: integer
format: int32
description: The Y coordinate for the NBM model.
example: 651
lat:
type: number
description: The latitude coordinate for the NBM model.
example: 37.31
long:
type: number
description: The longitude coordinate for the NBM model.
example: -89.53
gfs:
type: object
properties:
x:
type: integer
format: int32
description: The X coordinate for the GFS model.
example: 1082
y:
type: integer
format: int32
description: The Y coordinate for the GFS model.
example: 509
lat:
type: number
description: The latitude coordinate for the GFS model.
example: 37.25
long:
type: number
description: The longitude coordinate for the GFS model.
example: -89.5
etopo:
type: object
properties:
x:
type: integer
format: int32
description: The X coordinate for the ETOPO model.
example: 5429
y:
type: integer
format: int32
description: The Y coordinate for the ETOPO model.
example: 7638
lat:
type: number
description: The latitude coordinate for the ETOPO model.
example: 37.3
long:
type: number
description: The longitude coordinate for the ETOPO model.
example: -89.5166
processTime:
type: integer
format: int32
description: The time taken to process the request in milliseconds. Only returned when version>1.
example: 12026
ingestVersion:
type: string
description: The ingest version of Pirate Weather used to generate the forecast. Only returned when version>1.
example: v29
nearestCity:
type: string
description: The name of the closest city to your location. Only returned when version>1.
example: Cape Girardeau
nearestCountry:
type: string
description: The name of the closest country to your location. Only returned when version>1.
example: United States
nearestSubNational:
type: string
description: The name of the closest state or province to your location. Only returned when version>1.
example: Missouri