Common information

Country
Finland
Population
13 607

Weather, climate, temperature by months in Naantali

Season Autumn Winter Spring Summer
Month Sep Oct Nov Dec Jan Feb Mar Apr May Jun Jul Aug Year
Record high, °C 23 17 10 8 7 11 12 21 27 32 30 31 32
Average high, °C 13 8 2 -1 -3 -2 1 7 15 19 20 19 8
Average temperature, °C 10 5 0 -3 -5 -5 -1 3 10 14 16 15 5
Average low, °C 6 2 -1 -6 -8 -8 -5 -1 4 9 12 10 1
Record low, °C -6 -10 -21 -33 -35 -32 -23 -15 -5 -1 3 1 -35
Rain, days 6 6 5 5 4 3 3 4 5 4 6 7 58
Snow, days 3 4 1 1 4 4 7 6 6 5 3 2 46
Fog, days 19 19 17 16 19 18 21 16 17 15 20 21 218
Thunderstorms, days 1 0 0 0 0 0 0 0 1 3 4 3 12
Average precipitation, mm. 60 60 60 50 40 30 20 30 30 40 70 80 570
Relative humidity, % 85 85 90 90 90 90 90 90 85 85 85 85 88
Relative humidity morning, % 93 91 91 90 89 90 90 88 84 84 90 92 89
Relative humidity evening, % 71 79 88 89 88 83 72 58 51 52 58 62 71
Wind speed, km/h 9 12 14 12 14 12 12 12 12 9 9 9 11
Day Length, часов 14 11 8 7 8 10 13 16 19 21 19 17 13
Dew point, °C 7 3 0 -5 -7 -7 -5 -1 2 7 11 10 15
Growing degree-day, °C 0 0 0 0 0 0 0 0 0 133 198 155 486
Solar radiation, global, Mj/m2 9 4 2 1 1 4 9 14 20 20 19 15 10

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