Swim in Kotka in april 2025What is the temperature of the sea in in april?

Average sea temperature in Kotka in april 2025.

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

Minimum: 30°F

Average: 36°F

Maximum: 41°F

Other useful seasonal weather averages in april:

  • Outside temperature: 36°F to 41°F
  • Most common weather: "Clear/Sunny"
  • The wind blows at -0.6mph
  • It rains a total of 2.5in, over 4 day(s).

Should we swim in Kotka in april?

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

You won't be able to swim in Kotka in april! The water temperature is freezing, reaching as low as 30°F (and only 41°F at best)! Our advice: if you are going to Kotka 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 39°F, 2.5in of precipitation (over 4 days) and 84.76 % humidity.

Water and normal seasonal temperatures in Kotka in april

April
Average sea temperature 36°F
Minimum sea temperature 30°F
Maximum sea temperature 41°F
Average outside temperature 40°F
Maximum outside temperature 41°F
Minimum outside temperature 38°F
Wind speed 12.4mph
Wind temperature 31°F
Precipitation 2.5in
Number of days of rain 4 jour(s)
(14%)
Humidity 85%
Visibility in kilometers 8.52km
Cloud cover 55%
Our opinion freezing swimming

Swim elsewhere in Finland in april

City Average T° Max. T° Our opinion
Helsinki in april36°F40°Ffreezing swimming
Åland in april34°F37°Ffreezing swimming
Kalajoki in april32°F34°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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