EnvironmentStandardCC-BY-4.0

DMI open data

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

DMI (the Danish Meteorological Institute) publishes open data via a Gravitee API: real-time observations from stations in Denmark and Greenland (metObs — temperature, precipitation, wind, humidity) and quality-controlled climate aggregates per station (climateData — monthly and annual means). Note: the two APIs have SEPARATE station registers and SEPARATE parameter vocabularies — `wind_speed` is metObs, `mean_wind_speed` is climate. Use /climate-stations for climate lookups. No API key required (measured 2026-08-18). CC-BY-4.0.

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Data volume

Real time

Updates

MCP tools

Example response — /api/connectors/dmi/stations

{
  "data": "..."
}

MCP integration

Available MCP tools

dmi.climate

dmi.observations

dmi.stations

Configuration for Claude Desktop / Cursor

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

Analysis apps that use this source

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

Danish long-term climate (DMI)

Monthly and annual climate aggregates from the Danish Meteorological Institute — mean temperature, precipitation sum, mean wind and sunshine hours per station, with DMI's own quality flag and the number of measurements behind each aggregate. The station list is filtered by the selected parameter. For current weather observations, use Dansk vær (DMI).

Danish weather and climate (DMI)

Current and recent weather observations from the Danish Meteorological Institute — temperature, precipitation and wind per station. For historical monthly and annual climate normals, use Dansk langtidsklima (DMI).

API endpoints

GET

/stations

metObs-målestasjoner (registeret for /observations)

country optional: ISO 3166-1 alpha-3 landkode — DNK (Danmark) eller GRL (Grønland) country=DNK

Show curl example

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

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

GET

/climate-stations

climateData-målestasjoner (registeret for /climate) — filtrerbart på klimaparameter

country optional: ISO 3166-1 alpha-3 landkode country=DNK
parameterId optional: Returner kun stasjoner som fører DENNE klimaserien parameterId=mean_temp

Show curl example

# GET https://data.ketl.no/api/connectors/dmi/climate-stations
curl \
  -H "Accept: application/json" \
  "https://data.ketl.no/api/connectors/dmi/climate-stations"

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

GET

/observations

Sanntidsobservasjoner fra en metObs-stasjon

stationId required: DMI stasjons-ID (fra /stations) stationId=06180
parameterId required: metObs-parameter. DISJUNKT fra klimavokabularet parameterId=temp_dry
from optional: ISO 8601 starttidspunkt (inklusiv) from=2026-08-01T00:00:00Z
to optional: ISO 8601 sluttidspunkt (eksklusiv) to=2026-08-18T00:00:00Z
limit optional: Antall observasjoner limit=24

Show curl example

# GET https://data.ketl.no/api/connectors/dmi/observations?stationId=06180&parameterId=temp_dry
curl \
  -H "Accept: application/json" \
  "https://data.ketl.no/api/connectors/dmi/observations?stationId=06180&parameterId=temp_dry"

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

GET

/climate

Kvalitetssikrede klimaaggregater per stasjon

stationId required: DMI stasjons-ID (fra /climate-stations) stationId=06180
parameterId required: Klimaparameter. DISJUNKT fra metObs — `wind_speed` finnes ikke her, bruk `mean_wind_speed` parameterId=mean_temp
timeResolution optional: Aggregeringsnivå (små bokstaver). 10years/30years godtas, men gir målt 0 rader for stationValue timeResolution=month
limit optional: Antall perioder limit=24

Show curl example

# GET https://data.ketl.no/api/connectors/dmi/climate?stationId=06180&parameterId=mean_temp
curl \
  -H "Accept: application/json" \
  "https://data.ketl.no/api/connectors/dmi/climate?stationId=06180&parameterId=mean_temp"

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

Access and pricing

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

danmarkværklimaobservasjongrønlandnordisk