Swimming in Finland in may 2025 Sea temperature by city in may
Do you want to go to the beach in Finland in may 2025? Is it the right month to go for pleasant temperatures and staying in the water for a long time? The answer is on this page with the sea temperatures in may in Finland by city and our opinion on the chances of enjoying pleasant sea conditions.
Sea temperature in Finland in may 2025
Here, find the average sea temperature in Finland in may in several coastal cities.
South in may
44°F
min: 35°F / max: 54°F
45°F
min: 36°F / max: 54°F
Ekenäs
43°F
min: 33°F / max: 54°F
Hamina
45°F
min: 35°F / max: 54°F
Hanko
43°F
min: 32°F / max: 54°F
Ingå
44°F
min: 34°F / max: 54°F
West Coast in may
39°F
min: 30°F / max: 48°F
40°F
min: 29°F / max: 49°F
40°F
min: 32°F / max: 47°F
Turku Archipelago (Abo Skargard)
39°F
min: 30°F / max: 49°F
Rauma
38°F
min: 29°F / max: 48°F
Jakobstad
39°F
min: 32°F / max: 46°F
Lapland in may
43°F
min: 40°F / max: 46°F
38°F
min: 30°F / max: 47°F
38°F
min: 30°F / max: 45°F
43°F
min: 40°F / max: 48°F
Honningsvåg
42°F
min: 39°F / max: 45°F
41°F
min: 38°F / max: 44°F
North in may
37°F
min: 29°F / max: 45°F
37°F
min: 29°F / max: 46°F
Haukipudas
38°F
min: 29°F / max: 46°F
Kuivaniemi
38°F
min: 29°F / max: 46°F
Pyhaejoki
37°F
min: 28°F / max: 45°F
Raahe
36°F
min: 28°F / max: 45°F
Where should you go swimming in Finland in the month of may?
Swimming in Finland in may is freezing
In may in Finland swimming conditions are generally the same everywhere.
Forget about swimming in Helsinki, Åland, Alta, Kalajoki, Kemi, Kotka, Lulea, Oulu, Tromso, Turku, Vaasa, Turku Archipelago (Abo Skargard), Honningsvåg, Kirkenes, Rauma, Båtsfjord, Ekenäs, Hamina, Hammerfest, Hanko, Haukipudas, Ingå, Jakobstad, Kirkkonummi, Kokkola, Kristinestad, Kuivaniemi, Lakselv, Lyngseidet, Naantali, Oravais, Pargas, Piteå, Porvoo, Pyhaejoki, Raahe, Skjervoy, Storslett, Tornio, Uusikaupunki, Vadsø, Vantaa and Vardø in may! The water temperature is freezing, reaching as low as 35°F (and only 54°F at the best of times). Our advice: plan on sightseeing, and don't bring your beach towel!
Where to go swimming in Finland in may: the map of sea temperatures
ideal swimming 
pleasant swimming 
cool swimming 
cold swimming 
freezing swimmingWater temperature and seasonal norms in may
Helsinki
| May | |||
| Average sea temperature | 44°F | ||
| Minimum sea temperature | 35°F | ||
| Maximum sea temperature | 54°F | ||
| Average outside temperature | 52°F | ||
| Maximum outside temperature | 56°F | ||
| Minimum outside temperature | 50°F | ||
| Precipitation | 2.6in | ||
| Number of days of precipitation | 4 jour(s) (13%) | ||
| Cloud cover | 40% | ||
| Our opinion | freezing swimming |
More information on swimming in Helsinki in may
Åland
| May | |||
| Average sea temperature | 39°F | ||
| Minimum sea temperature | 30°F | ||
| Maximum sea temperature | 48°F | ||
| Average outside temperature | 47°F | ||
| Maximum outside temperature | 49°F | ||
| Minimum outside temperature | 45°F | ||
| Precipitation | 1.9in | ||
| Number of days of precipitation | 3 jour(s) (8%) | ||
| Cloud cover | 39% | ||
| Our opinion | freezing swimming |
More information on swimming in Åland in may
Alta
| May | |||
| Average sea temperature | 43°F | ||
| Minimum sea temperature | 40°F | ||
| Maximum sea temperature | 46°F | ||
| Average outside temperature | 40°F | ||
| Maximum outside temperature | 41°F | ||
| Minimum outside temperature | 36°F | ||
| Precipitation | 2.6in | ||
| Number of days of precipitation | 4 jour(s) (11%) | ||
| Cloud cover | 63% | ||
| Our opinion | freezing swimming |
More information on swimming in Alta in may
Kalajoki
| May | |||
| Average sea temperature | 37°F | ||
| Minimum sea temperature | 29°F | ||
| Maximum sea temperature | 45°F | ||
| Average outside temperature | 49°F | ||
| Maximum outside temperature | 50°F | ||
| Minimum outside temperature | 45°F | ||
| Precipitation | 2.4in | ||
| Number of days of precipitation | 4 jour(s) (13%) | ||
| Cloud cover | 44% | ||
| Our opinion | freezing swimming |
More information on swimming in Kalajoki in may
Kemi
| May | |||
| Average sea temperature | 38°F | ||
| Minimum sea temperature | 30°F | ||
| Maximum sea temperature | 47°F | ||
| Average outside temperature | 45°F | ||
| Maximum outside temperature | 49°F | ||
| Minimum outside temperature | 43°F | ||
| Precipitation | 3.1in | ||
| Number of days of precipitation | 5 jour(s) (18%) | ||
| Cloud cover | 49% | ||
| Our opinion | freezing swimming |
More information on swimming in Kemi in may
List of coastal cities in Finland
| Helsinki in may | freezing swimming |
| Åland in may | freezing swimming |
| Alta in may | freezing swimming |
| Kalajoki in may | freezing swimming |
| Kemi in may | freezing swimming |
| Kotka in may | freezing swimming |
| Lulea in may | freezing swimming |
| Oulu in may | freezing swimming |
| Tromso in may | freezing swimming |
| Turku in may | freezing swimming |
| Vaasa in may | freezing swimming |
| Turku Archipelago (Abo Skargard) in may | freezing swimming |
| Honningsvåg in may | freezing swimming |
| Kirkenes in may | freezing swimming |
| Rauma in may | freezing swimming |
| Båtsfjord in may | freezing swimming |
| Ekenäs in may | freezing swimming |
| Hamina in may | freezing swimming |
| Hammerfest in may | freezing swimming |
| Hanko in may | freezing swimming |
| Haukipudas in may | freezing swimming |
| Ingå in may | freezing swimming |
| Jakobstad in may | freezing swimming |
| Kirkkonummi in may | freezing swimming |
| Kokkola in may | freezing swimming |
| Kristinestad in may | freezing swimming |
| Kuivaniemi in may | freezing swimming |
| Lakselv in may | freezing swimming |
| Lyngseidet in may | freezing swimming |
| Naantali in may | freezing swimming |
| Oravais in may | freezing swimming |
| Pargas in may | freezing swimming |
| Piteå in may | freezing swimming |
| Porvoo in may | freezing swimming |
| Pyhaejoki in may | freezing swimming |
| Raahe in may | freezing swimming |
| Skjervoy in may | freezing swimming |
| Storslett in may | freezing swimming |
| Tornio in may | freezing swimming |
| Uusikaupunki in may | freezing swimming |
| Vadsø in may | freezing swimming |
| Vantaa in may | freezing swimming |
| Vardø in may | freezing swimming |