JMA Data MCP
Japan Meteorological Agency (JMA) data MCP server.
Features
AMeDAS (Automated Meteorological Data Acquisition System) station data
1286 observation stations across Japan
Search by station code, name, or location
Real-time weather observation data (temperature, humidity, wind, precipitation, etc.)
Historical weather data (past 1-2 weeks)
Time series data for trend analysis
Weather forecast by prefecture
Data Source
AMeDAS station data: https://www.jma.go.jp/bosai/amedas/
Real-time observation: https://www.jma.go.jp/bosai/amedas/
Weather forecast: https://www.jma.go.jp/bosai/forecast/
Installation
Or install locally:
MCP Server Configuration
Claude Desktop
Add to ~/Library/Application Support/Claude/claude_desktop_config.json (macOS) or %APPDATA%\Claude\claude_desktop_config.json (Windows):
Installed version:
Direct from GitHub:
Local development:
Cursor
Add to .cursor/mcp.json in your project root:
Cline
Add to Cline MCP settings:
Available Tools
Station Tools
get_station_info- Get station by codesearch_stations- Search stations by namesearch_nearby_stations- Search stations within radiusget_stations_of_type- Get stations by type (A-F)list_stations- List all stations with pagination
Weather Tools
get_current_weather- Get current weather observation from AMeDASget_weather_by_location- Get weather from nearest station to coordinatesget_forecast- Get weather forecast for a prefecturelist_prefectures- List available prefecture codes
Historical Data Tools
get_historical_weather- Get weather data for a specific past date/time (available for ~1-2 weeks)get_weather_time_series- Get time series data for trend analysis (hourly data up to 1 week)
Weather Data
The get_current_weather tool returns:
Field | Description | Unit |
temperature | Air temperature | ℃ |
humidity | Relative humidity | % |
pressure | Station pressure | hPa |
sea_level_pressure | Sea level pressure | hPa |
wind.speed | Wind speed | m/s |
wind.direction | Wind direction | 16 directions |
precipitation.10min | 10-min precipitation | mm |
precipitation.1h | 1-hour precipitation | mm |
precipitation.3h | 3-hour precipitation | mm |
precipitation.24h | 24-hour precipitation | mm |
sunshine.1h | 1-hour sunshine | hours |
snow.depth | Snow depth | cm |
snow.1h/6h/12h/24h | Snowfall | cm |
Station Types
Type | Description |
A | Staffed observatory (官署) |
B | Special regional weather station (特別地域気象観測所) |
C | AMeDAS station (アメダス) |
D | Rain gauge station (雨量観測所) |
E | Snow depth station (積雪観測所) |
F | Regional rain station (地域雨量観測所) |
Examples
Get current weather in Tokyo
Get weather by coordinates
Get forecast for Tokyo
Get historical weather data
Get time series data (last 24 hours)
Data Availability
Data Type | Availability |
Real-time observation | ~30 min delay |
Historical data | Past 1-2 weeks |
Time series | Up to 168 hours (1 week) |
Forecast | 7 days ahead |
License
MIT