io.github.trondbjoroy/met-mcp

Measured conclusion: Deep-tested. L2 outcome: tools_ok.

Weather forecasts from MET Norway (Yr): geocoding plus hourly forecasts worldwide.

Add to your agent

Copy this into your MCP client config:

{
  "mcpServers": {
    "met-mcp": {
      "url": "https://met-mcp.met-mcp-worker.workers.dev/mcp",
      "transport": "streamable-http"
    }
  }
}

Measured tools (8)

• geocode_location

  Find latitude and longitude for a place name. Use the coordinates with the other tools.

  Parameters:

  • name (required) — string — Place name, e.g. 'Bergen' or 'Oslo, Norway'
  • count — integer — Maximum number of matches to return

  Hints: read-only not declared · destructive not declared · idempotent not declared · open-world not declared

• get_forecast

  Get an hourly weather forecast from MET Norway (Yr) for a coordinate. Works worldwide, best coverage in the Nordics.

  Parameters:

  • latitude (required) — number — Latitude in decimal degrees
  • longitude (required) — number — Longitude in decimal degrees
  • hours — integer — How many hours ahead to include

  Hints: read-only not declared · destructive not declared · idempotent not declared · open-world not declared

• get_nowcast

  Minute-by-minute precipitation for the next 2 hours, radar-based. Nordic region only. Answers 'do I need an umbrella right now?'

  Parameters:

  • latitude (required) — number — Latitude in decimal degrees
  • longitude (required) — number — Longitude in decimal degrees

  Hints: read-only not declared · destructive not declared · idempotent not declared · open-world not declared

• get_weather_alerts

  Official danger warnings (wind, flood, ice, forest fire...) from MET Norway. Covers Norway and its waters. Omit coordinates to get all current alerts. Alert text is in Norwegian.

  Parameters:

  • latitude — number — Latitude in decimal degrees
  • longitude — number — Longitude in decimal degrees

  Hints: read-only not declared · destructive not declared · idempotent not declared · open-world not declared

• get_sun_events

  Sunrise, sunset, and solar noon for a coordinate and date. Works worldwide.

  Parameters:

  • latitude (required) — number — Latitude in decimal degrees
  • longitude (required) — number — Longitude in decimal degrees
  • date (required) — string — Date as YYYY-MM-DD
  • utc_offset — string — UTC offset for the returned times, e.g. '+02:00' for Norwegian summer time

  Hints: read-only not declared · destructive not declared · idempotent not declared · open-world not declared

• get_ocean_forecast

  Wave height, wave direction, and sea temperature. Covers the Norwegian coast and nearby seas.

  Parameters:

  • latitude (required) — number — Latitude in decimal degrees
  • longitude (required) — number — Longitude in decimal degrees
  • hours — integer — How many hours ahead to include

  Hints: read-only not declared · destructive not declared · idempotent not declared · open-world not declared

• find_weather_stations

  Find the nearest official weather stations (Frost). Use the station id (e.g. SN50540) with get_historical_weather.

  Parameters:

  • latitude (required) — number — Latitude in decimal degrees
  • longitude (required) — number — Longitude in decimal degrees
  • count — integer — Maximum number of stations to return

  Hints: read-only not declared · destructive not declared · idempotent not declared · open-world not declared

• get_historical_weather

  Daily historical observations from a weather station (Frost archive, some stations go back over 100 years). Find station ids with find_weather_stations.

  Parameters:

  • station_id (required) — string — Station id from find_weather_stations, e.g. SN50540
  • from (required) — string — Start date, YYYY-MM-DD
  • to (required) — string — End date (exclusive), YYYY-MM-DD
  • elements — array — Frost element ids. Defaults: daily mean temperature, precipitation sum, max wind.

  Hints: read-only not declared · destructive not declared · idempotent not declared · open-world not declared

Repository

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