Long-term weather forecast
Long-term weather forecast

December weather forecast and climate
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: 6.6h

The month with the longest days is June (Average daylight: 18h).
The month with shortest days is December (Average daylight: 6.6h).