Monthly weather forecast in Helsinki

30 daysJanFebMarAprMayJunJulAugSepOctNovDec
30 daysJanFebMarAprMayJunJulAugSepOctNovDec
SundayMondayTuesdayWednesdayThursdayFridaySaturday
8 September, Sunday. day, 16°; night, 13°; overcast9 September, Monday. day, 16°; night, 12°; clear10 September, Tuesday. day, 22°; night, 16°; overcast11 September, Wednesday. day, 18°; night, 17°; light rain12 September, Thursday. day, 19°; night, 15°; overcast13 September, Friday. day, 18°; night, 17°; rain14 September, Saturday. day, 19°; night, 17°; partly cloudy
15 September, Sunday. day, 20°; night, 17°; partly cloudy16 September, Monday. day, 21°; night, 16°; light rain17 September, Tuesday. day, 20°; night, 16°; partly cloudy18 September, Wednesday. day, 20°; night, 15°; partly cloudy19 September, Thursday. day, 20°; night, 15°; partly cloudy20 September, Friday. day, 19°; night, 13°; partly cloudy21 September, Saturday. day, 19°; night, 13°; partly cloudy
22 September, Sunday. day, 13°; night, 10°; rain23 September, Monday. day, 9°; night, 7°; light rain24 September, Tuesday. day, 8°; night, 7°; partly cloudy25 September, Wednesday. day, 12°; night, 13°; partly cloudy26 September, Thursday. day, 15°; night, 14°; partly cloudy27 September, Friday. day, 14°; night, 13°; light rain28 September, Saturday. day, 14°; night, 12°; mostly clear
29 September, Sunday. day, 13°; night, 11°; partly cloudy30 September, Monday. day, 14°; night, 13°; partly cloudy1 October, Tuesday. day, 13°; night, 13°; light rain2 October, Wednesday. day, 13°; night, 12°; light rain3 October, Thursday. day, 11°; night, 11°; rain4 October, Friday. day, 13°; night, 13°; rain5 October, Saturday. day, 12°; night, 11°; light rain
6 October, Sunday. day, 14°; night, 13°; light rain7 October, Monday. day, 13°; night, 11°; rain8 October, Tuesday. day, 12°; night, 11°; clear9 October, Wednesday. day, 12°; night, 10°; rainNext, the average data for 10 years10 October, Thursday. day, 9°; night, 7°; rain11 October, Friday. day, 8°; night, 6°; overcast12 October, Saturday. day, 8°; night, 6°; partly cloudy

Average for 30 days

3 sunny days; 13 days with precipitation; 14 cloudy days;
air humidity 78%; 25 millimeters of precipitation (4% of annual average); Wind south-westerly 8 Meters per second; Water temperature +18°