Swimming in Helsinki in april 2025: Average sea temperature in april and tide times in april 2025

Average sea temperature in Helsinki in april 2025.

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

Minimum: 31°F

Average: 36°F

Maximum: 40°F

Other useful seasonal weather averages in april:

  • Outside temperature: 38°F to 43°F
  • Most common weather: "Clear/Sunny"
  • The wind blows at -0mph
  • It rains a total of 2.2in, over 3 day(s).

Should we swim in Helsinki in april?

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

You won't be able to swim in Helsinki in april! The water temperature is freezing, reaching as low as 31°F (and only 40°F at best)! Our advice: if you are going to Helsinki this month, plan to sightsee and forget the beach!

Note also that in april, the climate is very bad with an average outside temperature of 40°F, 2.2in of precipitation (over 3 days) and 83.27 % humidity.

Water and normal seasonal temperatures in Helsinki in april

April
Average sea temperature 36°F
Minimum sea temperature 31°F
Maximum sea temperature 40°F
Average outside temperature 41°F
Maximum outside temperature 43°F
Minimum outside temperature 38°F
Wind speed 11.8mph
Wind temperature 32°F
Precipitation 2.2in
Number of days of rain 3 jour(s)
(12%)
Humidity 84%
Visibility in kilometers 8.43km
Cloud cover 53%
Our opinion freezing swimming

Chart of the tides in april 2025

Tide times in april 2025 in Helsinki

Swim elsewhere in Finland in april

City Average T° Max. T° Our opinion
Åland in april34°F37°Ffreezing swimming
Kalajoki in april32°F34°Ffreezing swimming
Kotka in april36°F41°Ffreezing swimming
Oulu in april32°F35°Ffreezing swimming
Turku in april33°F36°Ffreezing swimming
Vaasa in april34°F36°Ffreezing swimming

Swim in Finland in april: sea temperature by city

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