Monthly weather forecast in Helsinki

30 daysJanFebMarAprMayJunJulAugSepOctNovDec
30 daysJanFebMarAprMayJunJulAugSepOctNovDec
SundayMondayTuesdayWednesdayThursdayFridaySaturday
8 September, Sunday. day, 22°; night, 16°; mostly clear9 September, Monday. day, 22°; night, 18°; mostly clear10 September, Tuesday. day, 22°; night, 16°; partly cloudy11 September, Wednesday. day, 18°; night, 16°; rain12 September, Thursday. day, 20°; night, 14°; partly cloudy13 September, Friday. day, 20°; night, 16°; light rain14 September, Saturday. day, 19°; night, 16°; rain
15 September, Sunday. day, 20°; night, 15°; light rain16 September, Monday. day, 20°; night, 15°; partly cloudy17 September, Tuesday. day, 19°; night, 13°; light rain18 September, Wednesday. day, 22°; night, 14°; partly cloudy19 September, Thursday. day, 20°; night, 14°; partly cloudy20 September, Friday. day, 14°; night, 12°; light rain21 September, Saturday. day, 12°; night, 10°; mostly clear
22 September, Sunday. day, 15°; night, 15°; light rain23 September, Monday. day, 15°; night, 9°; light rain24 September, Tuesday. day, 11°; night, 12°; clear25 September, Wednesday. day, 15°; night, 16°; light rain26 September, Thursday. day, 14°; night, 13°; partly cloudy27 September, Friday. day, 12°; night, 11°; partly cloudy28 September, Saturday. day, 10°; night, 8°; partly cloudy
29 September, Sunday. day, 8°; night, 7°; partly cloudy30 September, Monday. day, 10°; night, 8°; mostly clear1 October, Tuesday. day, 8°; night, 6°; partly cloudy2 October, Wednesday. day, 7°; night, 5°; partly cloudy3 October, Thursday. day, 7°; night, 6°; partly cloudy4 October, Friday. day, 12°; night, 12°; light rain5 October, Saturday. day, 14°; night, 12°; light rain
6 October, Sunday. day, 14°; night, 12°; light rain7 October, Monday. day, 13°; night, 13°; light rainNext, the average data for 10 years8 October, Tuesday. day, 9°; night, 7°; rain9 October, Wednesday. day, 9°; night, 7°; rain10 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

7 sunny days; 11 days with precipitation; 12 cloudy days;
air humidity 77%; 11 millimeters of precipitation (2% of annual average); Wind south-westerly 7.4 Meters per second; Water temperature +18°