Current sea water temperature:
+30.9°F
| Minimum sea water temperature in February: | 37.2°F |
| Maximum sea water temperature in February: | 28.8°F |
| Average sea water temperature in February: | 32.0°F |
| more information | |
14 days
forecast
forecast
| Helsinki |
monthly
weather
weather
| Helsinki |
Sea water temperature for the last 10 days:
| February 23 | 30.9°F | February 18 | 28.9°F |
| February 22 | 29.1°F | February 17 | 29.1°F |
| February 21 | 29.3°F | February 16 | 29.1°F |
| February 20 | 28.9°F | February 15 | 29.3°F |
| February 19 | 28.9°F | February 14 | 29.5°F |
Monthly sea water temperature, °F
When is the warmest sea in Helsinki?
Based on the data about daily sea water temperature for the last three years the warmest sea in Helsinki was noticed in August, July and September.
Monthly Sea Temperatures in Helsinki, °F
Sea water temperature in August, °F
Show year:
2025
2024
2023
The average sea water temperature in August of 2025 was 63.8°F. The highest and lowest sea temperatures during the month were 73.9°F and 56.5°F.
Sea water temperature in July, °F
Show year:
2025
2024
2023
The average sea water temperature in July of 2025 was 63.2°F. The highest and lowest sea temperatures during the month were 74.5°F and 54.0°F.
Sea water temperature in September, °F
Show year:
2025
2024
2023
The average sea water temperature in September of 2025 was 59.5°F. The highest and lowest sea temperatures during the month were 63.3°F and 54.0°F.
current
weather
weather
| Helsinki |
weather in
February
February
| Helsinki |
Best time for vacation in Helsinki
Helsinki on a weather map
Places in Finland:
Name
°F
24 Hours Forecast
Helsinki
Local time: 08:20
February 24, tuesday
0900
14°F
SW
9 mph
9 mph
1200
21°F
SW
10 mph
10 mph
1500
25°F
SW
11 mph
11 mph
1800
23°F
SW
9 mph
9 mph
2100
19°F
SW
8 mph
8 mph
February 25, wednesday
0000
14°F
SW
7 mph
7 mph
0300
10°F
SW
6 mph
6 mph
0600
7°F
S
4 mph
4 mph
