Open API and MCP server
Everything Fintväder shows is also available as data: forecasts from SMHI and MET Norway, SMHI warnings, minute rain, confidence and how often the forecasts were right. Free, no key.
Credit the source
The data is CC BY 4.0. Show “Data: SMHI, MET Norway (CC BY 4.0), bearbetad av Fintväder” and link to fintvader.se wherever you display it.
Endpoints
GET /v1/forecast?place=uppsala- Forecast for a place (~1 km cell) from both sources.
GET /v1/nowcast?place=uppsala- Minute rain: precipitation every five minutes for the next two hours.
GET /v1/warnings?place=uppsala- SMHI warnings for the place, verbatim.
GET /v1/skill/uppsala- Forecast accuracy: how often SMHI and MET were right here.
GET /v1/climate/uppsala- Climate today: today’s high compared with the same date in earlier years.
GET /v1/places- Places with pages on Fintväder.
GET /v1/observations- Latest observations from SMHI stations (GeoJSON).
GET /v1/openapi.json- API description (OpenAPI 3.1).
Caching and fair use
Responses are cached for as long as the sources say and carry Cache-Control. Do not fetch more often than that; too many requests may be limited.
MCP server for AI assistants
fintvader-mcp speaks the Model Context Protocol (Streamable HTTP). Add the address below as an MCP server in your assistant:
https://fintvader.se/mcp
Tools: search_places, get_forecast, get_warnings, get_forecast_accuracy and get_climate_context. Answers include the source and a link.