Met Office Land Observations MCP Server

Met Office Land Observations

Real measured weather data from ~150 UK ground stations, updated hourly. This is ground-truth data (what actually happened), not forecasts (what might happen).

Data Model

• Geohash-based stations — each station is identified by a 6-character geohash
• 48-hour window — observations from the past 48 hours
• 9 parameters per hour — temperature, humidity, pressure, wind speed, wind gust, wind direction, visibility, weather code, pressure tendency

Key Parameters

• temperature — air temperature (°C)
• humidity — relative humidity (%)
• mslp — mean sea level pressure (hPa)
• wind_speed — wind speed (knots)
• wind_gust — wind gust speed (knots)
• wind_direction — compass direction (N, NNE, NE, etc.)
• visibility — visibility distance (metres)
• weather_code — WMO significant weather code (0-30)
• pressure_tendency — R (rising), F (falling), S (steady)

Two-Step Workflow

To get observations for a location:

1. Find nearest station — provide latitude/longitude, get back the station geohash
2. Get observations — use the geohash to retrieve 48h of hourly readings

The tools handle this automatically — provide lat/lon and get observations directly, or find the nearest station first if you need the station metadata.

Gotchas

• UK only — stations cover the UK mainland and some islands. No global coverage.
• ~50km spacing — stations are ~50km apart. Rural areas may be far from a station.
• Some stations don't report all parameters — missing values are omitted from the response.
• Separate API key — requires its own DataHub subscription (Land Observations), different from the forecast (Global Spot) key.
• Header auth — key goes in apikey header, same as the forecast API.