Weather forecast Helsinki 20-09-2025

Weather Saturday 20 September temperature from 10 °C to 17 °C, cloud cover up to 100%, precipitation is expected with a 100% chance, wind up to 8.5 m/s (gusts up to 13.14 m/s), air humidity from 60% to 96%, atmospheric pressure from 752 to 756 mm Hg, UV Index to 1.7 during the day. Forecast for the next days on the chart.