Weather in December
December welcomes winter in
Naantali,
Finland. The sea temperature falls dramatically to a brisk 2.1°C (35.8°F), marking the end of the year. The return of long nights and short days create the perfect stage for a white Christmas. The city folds into its winter blanket once again, presenting a picturesque snow-covered landscape. With the arrival of December, Naantali once again prepares for the beautiful frosty season. It's time for warm drinks, fireplaces, and cozy indoor activities to counter the weather's chilly touch.
Sea temperature
In December, the average sea temperature is 2.1°C (35.8°F).
Note: While participating in swimming, this is a serious life-threatening situation. Breathing becomes unmanageable, making lucid thinking almost impossible. The use of a specialized swimsuit is crucial to control thermal loss.
Daylight
December has the shortest days of the year in Naantali, with an average of 5h and 54min of daylight.
On the first day of the month, sunrise is at 09:11 and sunset at 15:30. On the last day of December, sunrise is at 09:38 and sunset at 15:31 EET.
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