Monthly weather forecast in Helsinki

30 daysJanFebMarAprMayJunJulAugSepOctNovDec
30 daysJanFebMarAprMayJunJulAugSepOctNovDec
SundayMondayTuesdayWednesdayThursdayFridaySaturday
15 September, Sunday. day, 14°; night, 12°; rain16 September, Monday. day, 18°; night, 15°; partly cloudy17 September, Tuesday. day, 20°; night, 11°; partly cloudy18 September, Wednesday. day, 18°; night, 11°; overcast19 September, Thursday. day, 20°; night, 12°; clear20 September, Friday. day, 20°; night, 10°; mostly clear21 September, Saturday. day, 14°; night, 6°; partly cloudy
22 September, Sunday. day, 12°; night, 7°; light rain23 September, Monday. day, 12°; night, 12°; light rain24 September, Tuesday. day, 15°; night, 12°; light rain25 September, Wednesday. day, 15°; night, 12°; rain26 September, Thursday. day, 15°; night, 11°; rain27 September, Friday. day, 14°; night, 10°; partly cloudy28 September, Saturday. day, 13°; night, 11°; overcast
29 September, Sunday. day, 14°; night, 10°; overcast30 September, Monday. day, 14°; night, 14°; light rain1 October, Tuesday. day, 15°; night, 14°; rain2 October, Wednesday. day, 14°; night, 12°; light rain3 October, Thursday. day, 11°; night, 9°; rain4 October, Friday. day, 10°; night, 10°; light rain5 October, Saturday. day, 12°; night, 9°; rain
6 October, Sunday. day, 10°; night, 9°; light rain7 October, Monday. day, 9°; night, 3°; rain8 October, Tuesday. day, 3°; night, 2°; light rain9 October, Wednesday. day, 10°; night, 12°; light rain10 October, Thursday. day, 12°; night, 7°; light rain11 October, Friday. day, 6°; night, 3°; light rain12 October, Saturday. day, 3°; night, 1°; partly cloudy
13 October, Sunday. day, 2°; night, 1°; clear14 October, Monday. day, 4°; night, 7°; clear15 October, Tuesday. day, 9°; night, 5°; light rain16 October, Wednesday. day, 6°; night, 3°; mostly clearNext, the average data for 10 years17 October, Thursday. day, 6°; night, 6°; rain18 October, Friday. day, 7°; night, 5°; overcast19 October, Saturday. day, 7°; night, 6°; clear

Average for 30 days

6 sunny days; 17 days with precipitation; 7 cloudy days;
air humidity 79%; 29 millimeters of precipitation (5% of annual average); Wind south-westerly 7.4 Meters per second; Water temperature +18°