Finnish Meteorological Institute (FMI)
Sun protection is required when the UV index is 3 or higher. The forecast for the daily maximum UV index is valid for cloudless conditions. Only thick clouds attenuate the UV radiation considerably.
Finnish Meteorological Institute (FMI)
Sun protection is required when the UV index is 3 or higher. The forecast for the daily maximum UV index is valid for cloudless conditions. Only thick clouds attenuate the UV radiation considerably.