Weather Forecast

Hourly, daily and current weather forecast for any coordinate, up to 16 days ahead.

GET https://api.aisa.one/apis/v1/openmeteo/forecast

Weather Forecast

cURL

curl --request GET \
  --url https://api.aisa.one/apis/v1/openmeteo/forecast \
  --header 'Authorization: Bearer <token>'

200

{
  "latitude": 52.52,
  "longitude": 13.419998,
  "generationtime_ms": 0.19,
  "utc_offset_seconds": 7200,
  "timezone": "Europe/Berlin",
  "timezone_abbreviation": "CEST",
  "elevation": 38,
  "current_units": {
    "time": "iso8601",
    "interval": "seconds",
    "temperature_2m": "°C",
    "weather_code": "wmo code"
  },
  "current": {
    "time": "2024-01-01T12:00",
    "interval": 900,
    "temperature_2m": 4.5,
    "weather_code": 3
  },
  "hourly_units": {
    "time": "iso8601",
    "temperature_2m": "°C",
    "precipitation": "mm",
    "wind_speed_10m": "km/h"
  },
  "hourly": {
    "time": [
      "2024-01-01T00:00",
      "2024-01-01T01:00"
    ],
    "temperature_2m": [
      2.1,
      1.9
    ],
    "precipitation": [
      0,
      0.1
    ],
    "wind_speed_10m": [
      11.2,
      10.4
    ]
  },
  "daily_units": {
    "time": "iso8601",
    "temperature_2m_max": "°C",
    "temperature_2m_min": "°C",
    "precipitation_sum": "mm"
  },
  "daily": {
    "time": [
      "2024-01-01"
    ],
    "temperature_2m_max": [
      5.2
    ],
    "temperature_2m_min": [
      1.1
    ],
    "precipitation_sum": [
      0.4
    ]
  }
}

Fetch a weather forecast for any WGS84 coordinate from Open-Meteo’s blended high-resolution model mix. Choose the fields you want with hourly, daily and current (comma-separated variable lists) — e.g. temperature_2m, precipitation, wind_speed_10m for hourly, or temperature_2m_max/precipitation_sum for daily. Control the horizon with forecast_days (up to 16) and past_days, and set timezone=auto to localize daily aggregates.

The response returns the resolved grid-cell latitude/longitude/elevation, timezone metadata, and a block per requested resolution (hourly, daily, current) each with a parallel time array plus one array per variable, alongside a matching *_units object.

Example: GET /apis/v1/openmeteo/forecast?latitude=52.52&longitude=13.41&hourly=temperature_2m,precipitation&daily=temperature_2m_max,temperature_2m_min&current=temperature_2m,weather_code&timezone=Europe/Berlin.

Billing: $0.00015 per call (150 micros USD), metered per request. All Open-Meteo endpoints are GET pass-through — authenticate with your AIsa API key as a bearer token (the same key used across every AIsa /apis/* endpoint); AIsa handles provider access.

Authorizations

Authorization · string · header · required

Bearer authentication header of the form Bearer <token>, where <token> is your auth token.

Query Parameters

latitude · string · required

WGS84 latitude of the location. Multiple coordinates can be comma-separated.

Example:

"52.52"

longitude · string · required

WGS84 longitude of the location (negative for the Americas). Multiple coordinates can be comma-separated.

Example:

"13.41"

hourly · string

Comma-separated list of hourly variables to return. Common values: temperature_2m, relative_humidity_2m, dew_point_2m, apparent_temperature, precipitation, rain, showers, snowfall, weather_code, pressure_msl, cloud_cover, wind_speed_10m, wind_direction_10m, wind_gusts_10m, shortwave_radiation, visibility.

Example:

"temperature_2m,precipitation,wind_speed_10m"

daily · string

Comma-separated list of daily aggregation variables to return. Requires timezone. Common values: temperature_2m_max, temperature_2m_min, temperature_2m_mean, precipitation_sum, rain_sum, snowfall_sum, weather_code, sunrise, sunset, sunshine_duration, wind_speed_10m_max, uv_index_max.

Example:

"temperature_2m_max,temperature_2m_min,precipitation_sum"

current · string

Comma-separated list of current-condition variables to return. Common values: temperature_2m, relative_humidity_2m, apparent_temperature, is_day, precipitation, weather_code, wind_speed_10m, wind_direction_10m.

Example:

"temperature_2m,weather_code"

minutely_15 · string

Comma-separated 15-minutely variables (Central Europe & North America high-resolution models only).

Example:

"temperature_2m,precipitation"

forecast_days · integer · default: 7

Number of forecast days to return (0-16). Default 7.

Example:

7

past_days · integer · default: 0

Number of past days to include (0-92). Default 0.

forecast_hours · integer

Limit the forecast to a given number of hours from now.

past_hours · integer

Include a given number of past hours.

start_date · string<date>

Start of the interval, yyyy-mm-dd (ISO 8601).

Example:

"2024-01-01"

end_date · string<date>

End of the interval, yyyy-mm-dd (ISO 8601).

Example:

"2024-01-07"

elevation · string

Manual elevation (meters) for statistical downscaling. Defaults to a 90m DEM. Use nan to disable downscaling.

Example:

"38"

temperature_unit · enum<string> · default: celsius

Temperature unit. Default celsius.

Available options: celsius, fahrenheit

wind_speed_unit · enum<string> · default: kmh

Wind speed unit. Default kmh.

Available options: kmh, ms, mph, kn

precipitation_unit · enum<string> · default: mm

Precipitation unit. Default mm.

Available options: mm, inch

timeformat · enum<string> · default: iso8601

Time output format. Default iso8601.

Available options: iso8601, unixtime

models · string

Comma-separated forecast models to use. Default auto selects the best model mix per location.

Example:

"auto"

timezone · string

IANA time zone name (e.g. Europe/Berlin) or auto to resolve from coordinates. Defaults to GMT.

Example:

"Europe/Berlin"

cell_selection · enum<string> · default: land

Grid-cell preference for the coordinate. Default land.

Available options: land, sea, nearest

Response

200 - application/json

Requested weather forecast for the coordinate.

The response is of type object.