Swim in Helsinki in march 2025What is the temperature of the sea in in march?

Average sea temperature in Helsinki in march 2025.

In march, according to seasonal norms, the sea temperature in Helsinki is:

Minimum: 31°F

Average: 33°F

Maximum: 34°F

Other useful seasonal weather averages in march:

  • Outside temperature: 28°F to 33°F
  • Most common weather: "Snow showers"
  • The wind blows at -4.4mph
  • It rains a total of 2.7in, over 5 day(s).

Should we swim in Helsinki in march?

No... The water temperature in Helsinki in march is freezing

You won't be able to swim in Helsinki in march! The water temperature is freezing, reaching as low as 31°F (and only 34°F at best)! Our advice: if you are going to Helsinki this month, plan to sightsee and forget the beach!

Note also that in march, the climate is very bad with an average outside temperature of 31°F, 2.7in of precipitation (over 5 days) and 90.84 % humidity.

Water and normal seasonal temperatures in Helsinki in march

March
Average sea temperature 33°F
Minimum sea temperature 31°F
Maximum sea temperature 34°F
Average outside temperature 32°F
Maximum outside temperature 34°F
Minimum outside temperature 29°F
Wind speed 12.4mph
Wind temperature 20°F
Precipitation 2.7in
Number of days of rain 5 jour(s)
(15%)
Humidity 91%
Visibility in kilometers 7.37km
Cloud cover 64%
Our opinion freezing swimming

Swim elsewhere in Finland in march

City Average T° Max. T° Our opinion
Åland in march32°F34°Ffreezing swimming
Kalajoki in march33°F35°Ffreezing swimming
Kotka in march32°F34°Ffreezing swimming
Oulu in march32°F34°Ffreezing swimming
Turku in march32°F33°Ffreezing swimming
Vaasa in march32°F33°Ffreezing swimming

Swim in Finland in march: sea temperature by city

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