Weather in December
Sea temperature
In December, the average sea temperature in Östhammar, Sweden, is 3°C (37.4°F).Note: In swimming, this scenario poses immediate life-threatening danger. Breathing control is totally lost and logical thinking nearly impossible. Wearing a specialized swimsuit is critical to limit thermal loss.
Daylight
With an average of 6h and 0min of daylight, December has the shortest days of the year in Östhammar.On the first day of the month, sunrise is at 08:24 and sunset at 14:46. On the last day of December, in Östhammar, sunrise is at 08:51 and sunset at 14:48 CET.
Frequently asked questions
What is the water temperature in December in Östhammar?
In December, the average sea temperature in Östhammar, Sweden, is 3°C (37.4°F). For swimming, this is considered very dangerous and immediately life-threatening. Total loss of breathing control instantly occurs, and clear thinking becomes almost impossible. A specialized swimsuit is obligatory to minimize thermal loss.
What is the month with the shortest days in Östhammar?
With an average of 6h and 0min of daylight, December has the shortest days of the year in Östhammar.
How many hours of daylight does Östhammar have in December?
In Östhammar, Sweden, the average day length in December is 5h and 58min.
When are sunrise and sunset in December in Östhammar?
In December, on the first day of the month, sunrise is at 08:24 and sunset at 14:46. On the last day of the month, in Östhammar, Sweden, sunrise is at 08:51 and sunset at 14:48 CET.
Average sea temperature in December
Östhammar, Sweden
- Average sea temperature in December: 3°C
The best month for swimming (with the highest average sea temperature) is August (18.2°C).
The coldest month (with the lowest average sea temperature) is February (0.1°C).
Average daylight in December
Östhammar, Sweden
- Average daylight in December: 6h and 0min
The month with the longest days is June (Average daylight: 18h and 48min).
The month with the shortest days is December (Average daylight: 6h and 0min).
Östhammar, Sweden
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