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Warmest sea in Finland in June

52 coastal locations in Finland ranked by their typical June sea temperature. Region-wide average in June: 12.7°C. The top of the list is where to find the warmest swimming this month.

Warmest in June

Imatra

14.8°C June mean in Finland

Regional June average

12.7°C

across all 52 coastal locations in Finland

Vs annual mean

+4.8°C

above the year-round regional average

What the Finland sea feels like in June

Water at this temperature is cold and will feel very cold initially, but the body will get used to it and longer swims are possible. Experienced swimmers can manage several hours of swimming, however hypothermia is still a real risk.

Finland monthly average 0.9°C to 17.3°C
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  • Warmest month August 17.3°C
  • Coldest month February 0.9°C
  • Annual mean 7.9°C
  • Months above 20°C 0 of 12

Where June fits in the year

June sits inside the regional pattern shown on the left. Pick a different month to see how the ranking shifts.

All twelve Finland month rankings:

Finland sea temperature map (live)

The map shows today's latest reading at every Finland location. The list below is based on the typical June mean, useful for trip planning weeks or months ahead.

Zoom in to see individual locations. Click a pin for water temperatures. View list →
°C -2 0 1 3 5 7 9 11 13 15 17 19 21 24 27 30 35

Top 50 warmest Finland locations in June

Sorted by the typical June mean built from a decade of daily readings at each location. Click any place for its 30-day chart, monthly profile, and full 10-year history.

# Location June mean
1 Imatra 14.8°C
2 lake Saimaa 14.8°C
3 Länsi-Turunmaa Southwest Finland 14.5°C
4 Hango Hango 13.8°C
5 Särkisalo Southwest Finland 13.8°C
6 Västanfjärd Southwest Finland 13.8°C
7 Ekenäs Uusimaa 13.7°C
8 Hamina 13.6°C
9 Kotka 13.6°C
10 Perna 13.4°C
11 Haukipudas 13.4°C
12 Oulu 13.4°C
13 Pargas 13.4°C
14 Turku 13.4°C
15 Naantali 13.3°C
16 Laensi Turunmaa 13.2°C
17 Porvoo 13.2°C
18 Kuivaniemi 13.2°C
19 Helsinki 13.1°C
20 Koukkuniemi 13.1°C
21 Otaniemi 13.1°C
22 Teekkarikylae 13.1°C
23 Merimasku 13.1°C
24 Rymattyla 13.1°C
25 Espoo 13.1°C
Show 25 more ▸
26 Inga 13.0°C
27 Pohja 13.0°C
28 Ekenaes 13.0°C
29 Velkua 13.0°C
30 Houtskar 12.9°C
31 Kustavi 12.9°C
32 Tampere 12.9°C
33 Hanko 12.8°C
34 Nagu 12.8°C
35 Inio 12.8°C
36 Keminmaa 12.6°C
37 Aland Islands 12.4°C
38 Kemi 12.3°C
39 Pyharanta 12.2°C
40 Rauma 12.2°C
41 Uusikaupunki 12.2°C
42 Pori 12.0°C
43 Kristinestad 11.8°C
44 Mariehamn 11.7°C
45 Kaskinen 11.4°C
46 Raahe 11.4°C
47 Pyhajoki 11.3°C
48 Vaasa 10.9°C
49 Oravais 10.4°C
50 Kalajoki 9.8°C

Coldest 10 in Finland in June

Same data the other way. Helpful if you want to know which Finland coasts to avoid for swimming in June.

# Location June mean
1 Kokkola 9.7°C
2 Himanka 9.8°C
3 Kalajoki 9.8°C
4 Oravais 10.4°C
5 Vaasa 10.9°C
6 Pyhajoki 11.3°C
7 Raahe 11.4°C
8 Kaskinen 11.4°C
9 Mariehamn 11.7°C
10 Kristinestad 11.8°C

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