Average sea water temperature in October:
+51.1°F
| Minimum sea water temperature in October: | 58.5°F |
| Maximum sea water temperature in October: | 44.8°F |
Daily sea water temperature in October, °F
Show year:
2026
2025
2024
The average sea water temperature in October of 2026 was 53.9°F. The highest and lowest sea temperatures during the month were 55.6°F and 50.7°F.
Monthly sea water temperature in Lahti, °F
Which Finland resorts have warmest sea in October?
| Place name | October 2026 | October 2025 |
|---|---|---|
| Kotka | 54.6°F | 51.4°F |
| Vantaa | 54.2°F | 50.7°F |
| Helsinki | 54.1°F | 50.5°F |
| Lahti | 53.9°F | 51.3°F |
| Turku | 53.8°F | 52.0°F |
| Espoo | 53.8°F | 50.5°F |
| Savolinna | 52.7°F | 50.3°F |
| Juvaskyla | 52.6°F | 50.8°F |
| Porvoo | 52.3°F | 48.9°F |
| Lappeenranta | 52.1°F | 49.3°F |
| Pori | 52.1°F | 48.1°F |
| Koli National Park | 52.0°F | 48.8°F |
| Imatra | 52.0°F | 49.5°F |
| Vaasa | 49.9°F | 46.2°F |
| Seinajoki | 49.7°F | 46.0°F |
| Kemi | 48.2°F | 45.4°F |
| Oulu | 47.9°F | 44.9°F |
| Saariselka | 47.6°F | 45.7°F |
Best time for vacation in Lahti
Lahti on a weather map
Places in Finland:
Name
°F
24 Hours Forecast
Lahti
Local time: 16:32
October 18, sunday
1800
39°F
S
4 mph
4 mph
2100
37°F
S
4 mph
4 mph
October 19, monday
0000
36°F
SW
2 mph
2 mph
0300
34°F
W
2 mph
2 mph
0600
34°F
N
2 mph
2 mph
0900
34°F
N
3 mph
3 mph
1200
43°F
N
5 mph
5 mph
1500
46°F
N
5 mph
5 mph
