Leaflet | Tiles © Esri
In October warmest sea in Finland is usually observed in the following locations: Kotka, Vantaa, Helsinki.
Table below shows the average sea water temperature for marine resorts of Finland in October for the last three years.
| Place name | October 2024 | October 2023 | October 2022 |
|---|---|---|---|
| Kotka | 54.2°F | 52.2°F | 49.9°F |
| Vantaa | 53.3°F | 51.4°F | 49.2°F |
| Helsinki | 53.1°F | 51.2°F | 49.1°F |
| Espoo | 52.9°F | 51.0°F | 49.0°F |
| Porvoo | 52.3°F | 50.9°F | 49.7°F |
| Turku | 52.1°F | 53.2°F | 50.9°F |
| Imatra | 51.8°F | 50.8°F | 49.1°F |
| Lahti | 51.7°F | 52.4°F | 49.5°F |
| Savolinna | 51.6°F | 51.9°F | 49.8°F |
| Lappeenranta | 51.6°F | 50.6°F | 48.4°F |
| Juvaskyla | 50.8°F | 51.1°F | 49.0°F |
| Koli National Park | 50.4°F | 50.4°F | 48.8°F |
| Pori | 48.9°F | 48.6°F | 47.2°F |
| Seinajoki | 47.3°F | 46.4°F | 46.4°F |
| Vaasa | 47.1°F | 46.2°F | 46.2°F |
| Saariselka | 45.7°F | 45.5°F | 44.7°F |
| Oulu | 44.4°F | 42.3°F | 44.2°F |
| Kemi | 44.3°F | 44.2°F | 45.2°F |
Charts below show average sea water temperature for Finland resorts with the warmest sea in October.
jan
feb
mar
apr
may
jun
jul
aug
sep
oct
nov
dec
0
11
22
33
44
55
66
77
37.2
43.4
50.3
59.3
64.2
63.2
55.9
45.2
35.5
31.7
31.2
32.6
jan
feb
mar
apr
may
jun
jul
aug
sep
oct
nov
dec
0
10
20
30
40
50
60
70
80
38.5
44.1
50.3
58.8
63.1
61.7
54.9
44.7
36
32.4
32.1
34.1
jan
feb
mar
apr
may
jun
jul
aug
sep
oct
nov
dec
0
10
20
30
40
50
60
70
80
38.7
44.2
50.3
58.8
63.1
61.8
55.1
44.9
36.1
32.4
32.1
34.1
You can also check other months of the year to see sea temperature of Finland resorts at that time.
Places in Finland:
Name
°F
