Monthly weather forecast in Helsinki

30 daysJanFebMarAprMayJunJulAugSepOctNovDec
30 daysJanFebMarAprMayJunJulAugSepOctNovDec
SundayMondayTuesdayWednesdayThursdayFridaySaturday
8 September, Sunday. day, 22°; night, 16°; partly cloudy9 September, Monday. day, 23°; night, 18°; mostly clear10 September, Tuesday. day, 23°; night, 17°; partly cloudy11 September, Wednesday. day, 18°; night, 16°; rain12 September, Thursday. day, 20°; night, 14°; overcast13 September, Friday. day, 20°; night, 16°; light rain14 September, Saturday. day, 19°; night, 16°; rain
15 September, Sunday. day, 20°; night, 14°; partly cloudy16 September, Monday. day, 19°; night, 14°; light rain17 September, Tuesday. day, 17°; night, 14°; partly cloudy18 September, Wednesday. day, 18°; night, 14°; partly cloudy19 September, Thursday. day, 17°; night, 14°; partly cloudy20 September, Friday. day, 14°; night, 15°; light rain21 September, Saturday. day, 16°; night, 15°; partly cloudy
22 September, Sunday. day, 16°; night, 14°; light rain23 September, Monday. day, 14°; night, 12°; light rain24 September, Tuesday. day, 14°; night, 15°; clear25 September, Wednesday. day, 15°; night, 14°; light rain26 September, Thursday. day, 10°; night, 10°; mostly clear27 September, Friday. day, 12°; night, 10°; clear28 September, Saturday. day, 12°; night, 10°; clear
29 September, Sunday. day, 10°; night, 9°; clear30 September, Monday. day, 11°; night, 10°; clear1 October, Tuesday. day, 11°; night, 9°; clear2 October, Wednesday. day, 11°; night, 9°; clear3 October, Thursday. day, 10°; night, 9°; clear4 October, Friday. day, 12°; night, 12°; light rain5 October, Saturday. day, 12°; night, 10°; light rain
6 October, Sunday. day, 10°; night, 10°; light rain7 October, Monday. day, 12°; night, 12°; 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

13 sunny days; 9 days with precipitation; 8 cloudy days;
air humidity 76%; 20 millimeters of precipitation (3% of annual average); Wind south-easterly 6.6 Meters per second; Water temperature +18°