13.01
tue
tue
Day

19°F
SW 9 mph
Precip.
67%
67%
Night

16°F
SW 5 mph
Precip.
100%
100%
14.01
wed
wed
Day

21°F
NW 11 mph
Precip.
75%
75%
Night

19°F
NW 14 mph
Precip.
0%
0%
15.01
thu
thu
Day

19°F
NW 13 mph
Precip.
0%
0%
Night

18°F
NW 10 mph
Precip.
0%
0%
16.01
fri
fri
Day

19°F
NW 11 mph
Precip.
0%
0%
Night

19°F
NW 11 mph
Precip.
0%
0%
17.01
sat
sat
Day

23°F
N 10 mph
Precip.
0%
0%
Night

21°F
NW 9 mph
Precip.
0%
0%
18.01
sun
sun
Day

21°F
NW 9 mph
Precip.
0%
0%
Night

19°F
NW 9 mph
Precip.
0%
0%
19.01
mon
mon
Day

19°F
NW 11 mph
Precip.
85%
85%
Night

12°F
NW 9 mph
Precip.
0%
0%
sea water
temperature
temperature
| Helsinki |
monthly
weather
weather
| Helsinki |
current
weather
weather
| Helsinki |
14 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: 20:42
January 13, tuesday
2100

14°F
SW
7 mph
7 mph
January 14, wednesday
0000

16°F
SW
5 mph
5 mph
0300

14°F
W
4 mph
4 mph
0600

18°F
W
6 mph
6 mph
0900

18°F
NW
8 mph
8 mph
1200

21°F
NW
11 mph
11 mph
1500

21°F
NW
11 mph
11 mph
1800

21°F
NW
14 mph
14 mph



























