Creative Commons Attribution 4.0 International license
The Creative Commons Attribution 4.0 International license (CC BY 4.0) shall be used by the Finnish Meteorological Institute's open data service. The license shall apply to the FMI's, the Finnish Transport Agency's, and the Radiation and Nuclear Safety Authority's open data sets as well as air quality data sets that are stored in the open data web-service.
License:
https://creativecommons.org/licenses/by/4.0/
Additional information:
Appendix 1: Additional information for aviation weather reports (METAR)
Appendix 2: The Licensors of Air Quality data sets (in Finnish)