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Coldest sea in Finland in May

52 coastal locations in Finland ranked by typical May sea temperature, coldest first. Region-wide average in May: 6.2°C.

Coldest in May

Himanka

2.3°C May mean in Finland

Regional May average

6.2°C

across all 52 coastal locations in Finland

Vs annual mean

-1.7°C

below the year-round regional average

What the Finland sea feels like in May

This water is very cold and can cause pain. We don't recommend you swim in this temperature for anything other than very short swims of 5 to 10 minutes unless you are a very experienced cold water swimmer.

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 May fits in the year

May 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 May mean.

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 coldest Finland locations in May

Sorted by typical May mean from a decade of daily readings, coldest first. Click any place for the full location page.

# Location May mean
1 Himanka 2.3°C
2 Kalajoki 2.3°C
3 Pyhajoki 2.6°C
4 Keminmaa 2.7°C
5 Kemi 2.7°C
6 Raahe 2.7°C
7 Kuivaniemi 2.8°C
8 Kokkola 2.8°C
9 Haukipudas 2.8°C
10 Oulu 2.8°C
11 Oravais 3.9°C
12 Vaasa 4.6°C
13 Kaskinen 6.0°C
14 Mariehamn 6.1°C
15 Kristinestad 6.4°C
16 Pori 6.5°C
17 Pyharanta 6.6°C
18 Rauma 6.6°C
19 Uusikaupunki 6.6°C
20 Aland Islands 6.9°C
21 Ekenäs Uusimaa 7.1°C
22 Västanfjärd Southwest Finland 7.1°C
23 Hango Hango 7.2°C
24 Inio 7.2°C
25 Särkisalo Southwest Finland 7.2°C
Show 25 more ▸
26 Houtskar 7.2°C
27 Kustavi 7.2°C
28 Nagu 7.3°C
29 Tampere 7.3°C
30 Velkua 7.3°C
31 Helsinki 7.3°C
32 Koukkuniemi 7.3°C
33 Otaniemi 7.3°C
34 Teekkarikylae 7.3°C
35 Espoo 7.3°C
36 Hanko 7.4°C
37 Ekenaes 7.4°C
38 Laensi Turunmaa 7.4°C
39 Merimasku 7.4°C
40 Rymattyla 7.4°C
41 Inga 7.4°C
42 Porvoo 7.5°C
43 Pohja 7.5°C
44 Länsi-Turunmaa Southwest Finland 7.5°C
45 Naantali 7.6°C
46 Perna 7.6°C
47 Pargas 7.7°C
48 Turku 7.7°C
49 Kotka 7.7°C
50 Hamina 7.8°C

Warmest 10 in Finland in May

Same data the other way. The warmest spots for the same month.

# Location May mean
1 Imatra 8.3°C
2 lake Saimaa 8.3°C
3 Hamina 7.8°C
4 Kotka 7.7°C
5 Pargas 7.7°C
6 Turku 7.7°C
7 Perna 7.6°C
8 Naantali 7.6°C
9 Länsi-Turunmaa Southwest Finland 7.5°C
10 Pohja 7.5°C

More on this region