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, 16°; night, 12°; partly cloudy11 September, Wednesday. day, 16°; night, 13°; overcast12 September, Thursday. day, 16°; night, 14°; partly cloudy13 September, Friday. day, 15°; night, 12°; rain14 September, Saturday. day, 19°; night, 14°; heavy rain
15 September, Sunday. day, 16°; night, 13°; heavy rain16 September, Monday. day, 19°; night, 15°; partly cloudy17 September, Tuesday. day, 20°; night, 14°; overcast18 September, Wednesday. day, 18°; night, 12°; overcast19 September, Thursday. day, 18°; night, 12°; partly cloudy20 September, Friday. day, 19°; night, 12°; partly cloudy21 September, Saturday. day, 18°; night, 11°; partly cloudy
22 September, Sunday. day, 14°; night, 10°; light rain23 September, Monday. day, 14°; night, 9°; light rain24 September, Tuesday. day, 11°; night, 7°; rain25 September, Wednesday. day, 11°; night, 9°; light rain26 September, Thursday. day, 12°; night, 10°; light rain27 September, Friday. day, 11°; night, 11°; partly cloudy28 September, Saturday. day, 11°; night, 11°; rain
29 September, Sunday. day, 10°; night, 7°; rain30 September, Monday. day, 11°; night, 12°; mostly clear1 October, Tuesday. day, 10°; night, 8°; clear2 October, Wednesday. day, 10°; night, 10°; mostly clear3 October, Thursday. day, 14°; night, 14°; partly cloudy4 October, Friday. day, 15°; night, 14°; partly cloudy5 October, Saturday. day, 13°; night, 8°; partly cloudy
6 October, Sunday. day, 10°; night, 9°; clear7 October, Monday. day, 13°; night, 13°; partly cloudy8 October, Tuesday. day, 8°; night, 6°; light rain9 October, Wednesday. day, 5°; night, 5°; light rain10 October, Thursday. day, 12°; night, 11°; partly cloudy11 October, Friday. day, 12°; night, 11°; clear12 October, Saturday. day, 12°; night, 10°; partly cloudy

Average for 30 days

6 sunny days; 10 days with precipitation; 14 cloudy days;
air humidity 79%; 43 millimeters of precipitation (7% of annual average); Wind north-westerly 6.9 Meters per second; Water temperature +18°