Current sea water temperature:
+56.5°F
| Minimum sea water temperature in August: | 75.9°F |
| Maximum sea water temperature in August: | 55.8°F |
| Average sea water temperature in August: | 63.6°F |
| more information | |
14 days
forecast
forecast
| Porvoo |
monthly
weather
weather
| Porvoo |
Sea water temperature for the last 10 days:
| August 27 | 56.5°F | August 22 | 59.2°F |
| August 26 | 56.3°F | August 21 | 59.4°F |
| August 25 | 58.3°F | August 20 | 60.8°F |
| August 24 | 59.0°F | August 19 | 61.3°F |
| August 23 | 59.9°F | August 18 | 60.8°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:
2026
2025
2024
The average sea water temperature in August of 2026 was 61.4°F. The highest and lowest sea temperatures during the month were 66.4°F and 56.3°F.
Sea water temperature in July, °F
Show year:
2026
2025
2024
The average sea water temperature in July of 2026 was 63.9°F. The highest and lowest sea temperatures during the month were 66.9°F and 61.3°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
August
August
| Porvoo |
Best time for vacation in Porvoo
Porvoo on a weather map
Places in Finland:
Name
°F
24 Hours Forecast
Porvoo
Local time: 16:59
August 27, thursday
1800
64°F
N
2 mph
2 mph
2100
63°F
N
4 mph
4 mph
August 28, friday
0000
63°F
NE
3 mph
3 mph
0300
61°F
E
2 mph
2 mph
0600
61°F
E
2 mph
2 mph
0900
63°F
NE
1 mph
1 mph
1200
63°F
NE
4 mph
4 mph
1500
63°F
N
5 mph
5 mph
