mcp · Japan

japan-climate-stats-mcp

Sub-100ms Japanese 47 Prefectures & Municipal Climate/Environment Statistics MCP Server powered by Open-Meteo API with JIS Code Normalization and Parquet Export

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What's in it

Data offered docs-verified: annual sunshine duration (hours) · annual mean air temperature (°C) · annual max and min temperature (°C) · winter mean temperature, Dec–Feb (°C) · winter diurnal temperature range (°C) · annual temperature range (°C) · annual precipitation (mm) · extreme hot days, daily max ≥35°C (days/year) · hot summer days, daily max ≥30°C (days/year) · frost winter days, daily min <0°C (days/year) · ice days, daily max <0°C (days/year) · heavy rain days, daily precipitation ≥50 mm (days/year)
Coverage docs-verified: Japan: all 47 prefectures and major municipalities (JIS codes, lat/lon)
Resolution llm-inferred: Annual indicators at prefecture and municipality level
Formats llm-inferred: JSON (local cache) · Parquet (export) · MCP stdio
Access docs-verified: Free and open source (MIT licence); no API key required. Relies on the Open-Meteo API.

Useful for

Use cases llm-inferred: Climate context for Japanese renewable siting: sunshine hours by prefecture against solar capacity · Winter thermal-stress and frost-day screening for Japanese municipal housing or infrastructure studies · Extreme heat day (≥35°C) exposure screening across municipalities for resilience planning
Audience llm-inferred: GIS analysts · planners · energy analysts · climate and environmental researchers

Limitations

Constraints llm-inferred: Japan only (metadata regions: Japan); no UK coverage for a UK-focused consultancy · Returns annual indicators, not daily or hourly series · Live mode (fetch_live=True) needs network access to Open-Meteo; offline use falls back to built-in baseline statistics · Baseline values are static and may not reflect current climate · Parquet export requires a writable export directory · Metadata lists indicator names as tools, but the docs describe a single tool, get_climate_environment_stats · Maintenance status is not stated in the docs

Licence: MIT
Authentication: Unknown — review source docs
GitHub stars: 0
Last commit: 16/10/2026
Last successful page check: 14/10/2026
Page health: healthy
Package: Not recorded
Verification: Not independently verified

Auto-extracted, unverified fields: tools, install, auth. Check upstream documentation.

Provenance & evidence

Daily discovery 2026-10-16: GitHub search; verified via GitHub API. Tools/install/auth auto-extracted from README.

Metadata observed 14/10/2026 · daily-2026-10-16 (github-search)