Weather in December
Sea temperature
In Marstrand, Sweden, the average seawater temperature in December is 5.8°C (42.4°F).Note: In 5.8°C (42.4°F), cold shock and rapid breathing can occur when swimming at temperatures below 10°C (50°F).
Daylight
The month with the shortest days is December, with an average of 6h and 36min of daylight.On the first day of December, sunrise is at 08:33 and sunset at 15:32. On the last day of the month, sunrise is at 08:58 and sunset at 15:35 CET.
Frequently asked questions
How cold is the water in December in Marstrand?
In Marstrand, in December, the average water temperature is 5.8°C (42.4°F). Swimming in 5.8°C (42.4°F) is considered life-threatening. Even a few minutes in 13°C (55.4°F) water is uncomfortable, and swimming below 10°C (50°F) may cause total loss of breathing control and cold shock, depending on a person's physique.
What is the month with the shortest days in Marstrand?
With an average of 6h and 36min of daylight, December has the shortest days of the year in Marstrand, Sweden.
What is the average length of the day in December in Marstrand?
The average day length in December in Marstrand is 6h and 38min.
When is the sunrise / sunset in December in Marstrand?
On the first day of December in Marstrand, Sweden, sunrise is at 08:33 and sunset at 15:32. On the last day of the month, sunrise is at 08:58 and sunset at 15:35 CET.
Average sea temperature in December
Marstrand, Sweden
- Average sea temperature in December: 5.8°C
The best month for swimming (with the highest average sea temperature) is August (18.5°C).
The coldest month (with the lowest average sea temperature) is March (2.6°C).
Average daylight in December
Marstrand, Sweden
- Average daylight in December: 6h and 4min
The month with the longest days is June (Average daylight: 18h and 0min).
The month with the shortest days is December (Average daylight: 6h and 36min).
Marstrand, Sweden
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