Current sea water temperature:
+35.8°F
| Minimum sea water temperature in January: | 37.8°F |
| Maximum sea water temperature in January: | 28.8°F |
| Average sea water temperature in January: | 32.6°F |
| more information | |
14 days
forecast
forecast
| Porvoo |
monthly
weather
weather
| Porvoo |
Sea water temperature for the last 10 days:
| January 1 | 35.8°F | December 27 | 35.4°F |
| December 31 | 35.6°F | December 26 | 36.0°F |
| December 30 | 35.2°F | December 25 | 36.9°F |
| December 29 | 35.6°F | December 24 | 36.5°F |
| December 28 | 35.4°F | December 23 | 36.5°F |
Monthly sea water temperature, °F
When is the warmest sea in Porvoo?
Based on the data about daily sea water temperature for the last three years the warmest sea in Porvoo was noticed in August, July and September.
Monthly Sea Temperatures in Porvoo, °F
Sea water temperature in August, °F
Show year:
2025
2024
2023
The average sea water temperature in August of 2025 was 64.7°F. The highest and lowest sea temperatures during the month were 74.3°F and 58.3°F.
Sea water temperature in July, °F
Show year:
2025
2024
2023
The average sea water temperature in July of 2025 was 64.6°F. The highest and lowest sea temperatures during the month were 73.8°F and 55.6°F.
Sea water temperature in September, °F
Show year:
2025
2024
2023
The average sea water temperature in September of 2025 was 59.1°F. The highest and lowest sea temperatures during the month were 64.0°F and 52.3°F.
current
weather
weather
| Porvoo |
weather in
January
January
| Porvoo |
Best time for vacation in Porvoo
Porvoo on a weather map
Places in Finland:
Name
°F
24 Hours Forecast
Porvoo
Local time: 11:50
January 01, thursday
1200
25°F
NW
12 mph
12 mph
1500
25°F
NW
21 mph
21 mph
1800
27°F
NW
21 mph
21 mph
2100
28°F
NW
27 mph
27 mph
January 02, friday
0000
27°F
NW
32 mph
32 mph
0300
27°F
NW
31 mph
31 mph
0600
27°F
NW
28 mph
28 mph
0900
25°F
NW
27 mph
27 mph
