Best time to swim in Naantali in Finland Sea temperature by month
Do you want to swim in the sea in Naantali in Finland? But when is the best time to go to be sure to have pleasant water for swimming in Naantali and be able to swim without catching cold? This month, or a different one? The answer is on this page, with the sea water temperature by month in Naantali, based on the average temperatures recorded in previous years.
Best time to swim in Naantali: the water temperature by month
Do you feel like swimming in Naantali in Finland? Discover the average sea temperature for each month of the year (based on previous years' records) and our opinion on swimming in the table below.
| Month | Average Sea temperature | Our opinion |
|---|---|---|
| January | 33°F (min: 29°F/max: 39°F) | freezing swimming |
| February | 32°F (min: 30°F/max: 33°F) | freezing swimming |
| March | 32°F (min: 31°F/max: 33°F) | freezing swimming |
| April | 33°F (min: 31°F/max: 36°F) | freezing swimming |
| May | 39°F (min: 30°F/max: 49°F) | freezing swimming |
| June | 49°F (min: 35°F/max: 63°F) | freezing swimming |
| July | 55°F (min: 37°F/max: 73°F) | freezing swimming |
| August | 55°F (min: 36°F/max: 76°F) | freezing swimming |
| September | 51°F (min: 34°F/max: 69°F) | freezing swimming |
| October | 44°F (min: 33°F/max: 56°F) | freezing swimming |
| November | 40°F (min: 31°F/max: 50°F) | freezing swimming |
| December | 36°F (min: 29°F/max: 43°F) | freezing swimming |