World Resorts

Finland

Helsinki Weather

Helsinki 14 Days Forecast

26.12
fri

Day

37°F

SE 11 mph

Precip.
0%

Night

36°F

SE 9 mph

Precip.
0%

27.12
sat

Day

39°F

SE 21 mph

Precip.
0%

Night

32°F

S 28 mph

Precip.
0%

28.12
sun

Day

30°F

S 20 mph

Precip.
0%

Night

36°F

SE 12 mph

Precip.
100%

29.12
mon

Day

30°F

SE 16 mph

Precip.
0%

Night

27°F

S 18 mph

Precip.
0%

30.12
tue

Day

28°F

S 17 mph

Precip.
0%

Night

25°F

S 14 mph

Precip.
0%

31.12
wed

Day

23°F

S 12 mph

Precip.
70%

Night

21°F

SE 11 mph

Precip.
0%

01.01
thu

Day

19°F

S 6 mph

Precip.
0%

Night

18°F

S 7 mph

Precip.
0%

02.01
fri

Day

16°F

SW 7 mph

Precip.
0%

Night

14°F

S 4 mph

Precip.
0%

03.01
sat

Day

16°F

SE 5 mph

Precip.
0%

Night

19°F

N 6 mph

Precip.
22%

04.01
sun

Day

21°F

SW 6 mph

Precip.
0%

Night

19°F

S 12 mph

Precip.
0%

05.01
mon

Day

23°F

S 21 mph

Precip.
100%

Night

21°F

SW 13 mph

Precip.
100%

06.01
tue

Day

21°F

NW 4 mph

Precip.
83%

Night

18°F

E 5 mph

Precip.
0%

07.01
wed

Day

32°F

N 17 mph

Precip.
29%

Night

28°F

N 20 mph

Precip.
0%

08.01
thu

Day

27°F

N 13 mph

Precip.
100%

Night

28°F

N 9 mph

Precip.
83%

sea water
temperature

Helsinki

monthly
weather

Helsinki

current
weather

Helsinki

7 days
forecast

Helsinki

January
February
March
April

May
June
July
August

September
October
November
December

Show year:

2025

2024

2023

The average sea water temperature in December of 2025 was 39.7°F. The highest and lowest sea temperatures during the month were 41.9°F and 36.7°F.

Show year:

2025

2024

2023

The average sea water temperature in January of 2025 was 34.9°F. The highest and lowest sea temperatures during the month were 36.9°F and 33.6°F.