Current sea water temperature:
+38.5°F
| Minimum sea water temperature in December: | 42.3°F |
| Maximum sea water temperature in December: | 28.6°F |
| Average sea water temperature in December: | 36.6°F |
| more information | |
14 days
forecast
forecast
| Turku |
monthly
weather
weather
| Turku |
Sea water temperature for the last 10 days:
| December 23 | 38.5°F | December 18 | 36.3°F |
| December 22 | 38.3°F | December 17 | 34.2°F |
| December 21 | 39.9°F | December 16 | 36.0°F |
| December 20 | 37.0°F | December 15 | 36.9°F |
| December 19 | 37.2°F | December 14 | 40.3°F |
Monthly sea water temperature, °F
When is the warmest sea in Turku?
Based on the data about daily sea water temperature for the last three years the warmest sea in Turku was noticed in August, July and September.
Monthly Sea Temperatures in Turku, °F
Sea water temperature in August, °F
Show year:
2025
2024
2023
The average sea water temperature in August of 2025 was 66.0°F. The highest and lowest sea temperatures during the month were 71.1°F and 61.0°F.
Sea water temperature in July, °F
Show year:
2025
2024
2023
The average sea water temperature in July of 2025 was 64.0°F. The highest and lowest sea temperatures during the month were 70.5°F and 57.7°F.
Sea water temperature in September, °F
Show year:
2025
2024
2023
The average sea water temperature in September of 2025 was 60.5°F. The highest and lowest sea temperatures during the month were 63.5°F and 56.7°F.
current
weather
weather
| Turku |
weather in
December
December
| Turku |
Best time for vacation in Turku
Turku on a weather map
Places in Finland:
Name
°F
24 Hours Forecast
Turku
Local time: 22:11
December 24, wednesday
0000
28°F
E
8 mph
8 mph
0300
30°F
E
10 mph
10 mph
0600
32°F
E
10 mph
10 mph
0900
30°F
E
7 mph
7 mph
1200
32°F
E
6 mph
6 mph
1500
32°F
SE
6 mph
6 mph
1800
30°F
SE
5 mph
5 mph
2100
32°F
SE
6 mph
6 mph
