EnvironmentStandardCC-BY-4.0

SMHI open data

Name: SMHI open data
License: CC-BY-4.0

SMHI (the Swedish Meteorological and Hydrological Institute) offers open data with observations from more than 700 weather stations in Sweden: temperature, precipitation, wind, humidity and solar irradiance. Also a weather-forecast API (pmp3g) for coordinates. CC-BY-4.0, no auth required.

—

Data volume

Daily

Updates

MCP tools

Example response — /api/connectors/smhi/parameters

{
  "data": "..."
}

MCP integration

Available MCP tools

smhi_forecast

smhi_observations

smhi_parameters

smhi_stations

Configuration for Claude Desktop / Cursor

{
  "mcpServers": {
    "smhi": {
      "url": "https://data.ketl.no/mcp/smhi",
      "headers": {
        "Authorization": "Bearer $KETL_API_KEY"
      }
    }
  }
}

Analysis apps that use this source

Ready-made tools built on SMHI open data data. Use them directly in the browser, or wire the same data into your own analysis via the API below.

Weather and climate

Weather forecasts, observations and climate data for all of Norway.

SMHI Swedish weather and climate

Climate observations from 700+ Swedish weather stations and point forecasts from the Swedish Meteorological and Hydrological Institute.

API endpoints

GET

/parameters

List måleparametere

Show curl example

# GET https://data.ketl.no/api/connectors/smhi/parameters
curl \
  -H "Accept: application/json" \
  "https://data.ketl.no/api/connectors/smhi/parameters"

Authenticated call — add one of these headers: x-api-key: ketl_… · Authorization: Bearer … — See the full reference in the documentation.

GET

/stations/{parameter}

Målestasjoner per parameter

Show curl example

# GET https://data.ketl.no/api/connectors/smhi/stations/{parameter}
curl \
  -H "Accept: application/json" \
  "https://data.ketl.no/api/connectors/smhi/stations/{parameter}"

Authenticated call — add one of these headers: x-api-key: ketl_… · Authorization: Bearer … — See the full reference in the documentation.

GET

/observations/{parameter}/{stationId}

Observasjonsdata

period optional: Observasjonsperiode. Utelat for at ruta skal velge en periode SMHI annonserer for akkurat dette parameter/stasjon-paret — svaret ekkoer valget. period=latest-day

Show curl example

# GET https://data.ketl.no/api/connectors/smhi/observations/{parameter}/{stationId}
curl \
  -H "Accept: application/json" \
  "https://data.ketl.no/api/connectors/smhi/observations/{parameter}/{stationId}"

Authenticated call — add one of these headers: x-api-key: ketl_… · Authorization: Bearer … — See the full reference in the documentation.

GET

/forecast

Værprognose for koordinat (lat, lon)

lat required: Breddegrad (WGS84) lat=59.33
lon required: Lengdegrad (WGS84) lon=18.07

Show curl example

# GET https://data.ketl.no/api/connectors/smhi/forecast?lat=59.33&lon=18.07
curl \
  -H "Accept: application/json" \
  "https://data.ketl.no/api/connectors/smhi/forecast?lat=59.33&lon=18.07"

Authenticated call — add one of these headers: x-api-key: ketl_… · Authorization: Bearer … — See the full reference in the documentation.

Access and pricing

SMHI open data is openly available — create an account to get started.

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