Current sea water temperature:
+36.7°F
| Minimum sea water temperature in April: | 43.9°F |
| Maximum sea water temperature in April: | 29.1°F |
| Average sea water temperature in April: | 35.5°F |
| more information | |
14 days
forecast
forecast
| Porvoo |
monthly
weather
weather
| Porvoo |
Sea water temperature for the last 10 days:
| April 27 | 36.7°F | April 22 | 37.9°F |
| April 26 | 35.4°F | April 21 | 40.5°F |
| April 25 | 38.1°F | April 20 | 38.7°F |
| April 24 | 36.5°F | April 19 | 40.3°F |
| April 23 | 40.3°F | April 18 | 39.0°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
May
May
| Porvoo |
Best time for vacation in Porvoo
Porvoo on a weather map
Places in Finland:
Name
°F
24 Hours Forecast
Porvoo
Local time: 18:34
April 27, monday
2100
39°F
S
19 mph
19 mph
April 28, tuesday
0000
37°F
S
20 mph
20 mph
0300
36°F
SE
21 mph
21 mph
0600
34°F
SE
22 mph
22 mph
0900
36°F
SE
22 mph
22 mph
1200
39°F
S
21 mph
21 mph
1500
43°F
S
19 mph
19 mph
1800
43°F
S
13 mph
13 mph
