Swim in Helsinki in december 2024What is the temperature of the sea in in december?
Average sea temperature in Helsinki in december 2024.
In december, according to seasonal norms, the sea temperature in Helsinki is:
Minimum: 32°F
Average: 39°F
Maximum: 47°F
Other useful seasonal weather averages in december:
- Outside temperature: 31°F to 35°F
- Most common weather: "Snow showers"
- The wind blows at -3.7mph
- It rains a total of 3.9in, over 8 day(s).
Should we swim in Helsinki in december?
No... The water temperature in Helsinki in december is freezing
You won't be able to swim in Helsinki in december! The water temperature is freezing, reaching as low as 32°F (and only 47°F at best)! Our advice: if you are going to Helsinki this month, plan to sightsee and forget the beach!
Note also that in december, the climate is very bad with an average outside temperature of 33°F, 3.9in of precipitation (over 8 days) and 89.91 % humidity.
Water and normal seasonal temperatures in Helsinki in december
| December | |||
| Average sea temperature | 39°F | ||
| Minimum sea temperature | 32°F | ||
| Maximum sea temperature | 47°F | ||
| Average outside temperature | 34°F | ||
| Maximum outside temperature | 36°F | ||
| Minimum outside temperature | 32°F | ||
| Wind speed | 15.5mph | ||
| Wind temperature | 22°F | ||
| Precipitation | 3.9in | ||
| Number of days of rain | 8 jour(s) (25%) | ||
| Humidity | 90% | ||
| Visibility in kilometers | 7.27km | ||
| Cloud cover | 75% | ||
| Our opinion | freezing swimming |
Swim elsewhere in Finland in december
| City | Average T° | Min. T° | Max. T° | Our opinion | Åland in december | 35°F | 42°F | freezing swimming | Kalajoki in december | 37°F | 42°F | freezing swimming | Kotka in december | 39°F | 45°F | freezing swimming | Oulu in december | 36°F | 41°F | freezing swimming | Turku in december | 36°F | 43°F | freezing swimming | Vaasa in december | 37°F | 42°F | freezing swimming |