Average sea water temperature in October:
+49.2°F
| Minimum sea water temperature in October: | 58.6°F |
| Maximum sea water temperature in October: | 41.5°F |
Daily sea water temperature in October, °F
Show year:
2026
2025
2024
The average sea water temperature in October of 2026 was 50.8°F. The highest and lowest sea temperatures during the month were 54.9°F and 45.0°F.
Monthly sea water temperature in Porvoo, °F
Which Finland resorts have warmest sea in October?
| Place name | October 2026 | October 2025 |
|---|---|---|
| Kotka | 53.5°F | 51.4°F |
| Vantaa | 52.9°F | 50.7°F |
| Helsinki | 52.7°F | 50.5°F |
| Espoo | 52.6°F | 50.5°F |
| Turku | 52.1°F | 52.0°F |
| Lahti | 52.0°F | 51.3°F |
| Savolinna | 51.2°F | 50.3°F |
| Juvaskyla | 51.1°F | 50.8°F |
| Porvoo | 50.8°F | 48.9°F |
| Lappeenranta | 50.7°F | 49.3°F |
| Imatra | 50.5°F | 49.5°F |
| Pori | 50.3°F | 48.1°F |
| Koli National Park | 50.2°F | 48.8°F |
| Vaasa | 48.0°F | 46.2°F |
| Seinajoki | 48.0°F | 46.0°F |
| Saariselka | 46.3°F | 45.7°F |
| Kemi | 45.9°F | 45.4°F |
| Oulu | 45.9°F | 44.9°F |
Best time for vacation in Porvoo
Porvoo on a weather map
Places in Finland:
Name
°F
24 Hours Forecast
Porvoo
Local time: 11:06
November 02, monday
1200
46°F
NE
14 mph
14 mph
1500
46°F
NE
14 mph
14 mph
1800
48°F
NE
14 mph
14 mph
2100
46°F
S
11 mph
11 mph
November 03, tuesday
0000
45°F
S
14 mph
14 mph
0300
41°F
SE
14 mph
14 mph
0600
39°F
SE
14 mph
14 mph
0900
39°F
SE
14 mph
14 mph
