12.01
mon
mon
Day

19°F
SW 11 mph
Precip.
87%
87%
Night

12°F
SW 9 mph
Precip.
87%
87%
13.01
tue
tue
Day

18°F
SW 10 mph
Precip.
80%
80%
Night

12°F
SW 7 mph
Precip.
68%
68%
14.01
wed
wed
Day

21°F
NW 9 mph
Precip.
73%
73%
Night

18°F
NW 11 mph
Precip.
0%
0%
15.01
thu
thu
Day

19°F
NW 13 mph
Precip.
0%
0%
Night

18°F
NW 11 mph
Precip.
0%
0%
16.01
fri
fri
Day

21°F
NW 11 mph
Precip.
0%
0%
Night

18°F
NW 7 mph
Precip.
0%
0%
17.01
sat
sat
Day

25°F
NW 9 mph
Precip.
68%
68%
Night

21°F
NW 11 mph
Precip.
64%
64%
18.01
sun
sun
Day

21°F
W 12 mph
Precip.
100%
100%
Night

21°F
W 13 mph
Precip.
100%
100%
19.01
mon
mon
Day

18°F
NW 14 mph
Precip.
100%
100%
Night

19°F
NW 13 mph
Precip.
100%
100%
20.01
tue
tue
Day

23°F
NW 11 mph
Precip.
78%
78%
Night

28°F
NW 17 mph
Precip.
100%
100%
21.01
wed
wed
Day

34°F
NE 11 mph
Precip.
100%
100%
Night

16°F
SE 6 mph
Precip.
0%
0%
22.01
thu
thu
Day

14°F
S 6 mph
Precip.
0%
0%
Night

16°F
SE 6 mph
Precip.
21%
21%
23.01
fri
fri
Day

23°F
NE 6 mph
Precip.
70%
70%
Night

32°F
NE 16 mph
Precip.
100%
100%
24.01
sat
sat
Day

34°F
N 12 mph
Precip.
100%
100%
Night

30°F
SE 11 mph
Precip.
49%
49%
25.01
sun
sun
Day

28°F
E 7 mph
Precip.
27%
27%
Night

30°F
E 9 mph
Precip.
0%
0%
sea water
temperature
temperature
| Helsinki |
monthly
weather
weather
| Helsinki |
current
weather
weather
| Helsinki |
7 days
forecast
forecast
| Helsinki |
Sea water temperature in January, °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.
Air temperature in Helsinki, °F
Precipitation total in Helsinki, in.
* Charts above show average data for the last 3 years.
Best time for vacation in Helsinki
Helsinki on a weather map
Places in Finland:
Name
°F
24 Hours Forecast
Helsinki
Local time: 06:33
January 12, monday
0900

18°F
SW
12 mph
12 mph
1200

19°F
SW
11 mph
11 mph
1500

18°F
SW
11 mph
11 mph
1800

14°F
SW
10 mph
10 mph
2100

14°F
SW
9 mph
9 mph
January 13, tuesday
0000

12°F
SW
9 mph
9 mph
0300

14°F
SW
9 mph
9 mph
0600

14°F
SW
9 mph
9 mph


























