Swim in Helsinki in april 2025What is the temperature of the sea in in april?
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 |
Swim elsewhere in Finland in april
| City | Average T° | Min. T° | Max. T° | Our opinion | Åland in april | 34°F | 37°F | freezing swimming | Kalajoki in april | 32°F | 34°F | freezing swimming | Kotka in april | 36°F | 41°F | freezing swimming | Oulu in april | 32°F | 35°F | freezing swimming | Turku in april | 33°F | 36°F | freezing swimming | Vaasa in april | 34°F | 36°F | freezing swimming |