Long-term weather forecast
Long-term weather forecast

December weather forecast and climate
Umeå, Sweden

  • Average high temperature in December: -0.7°C

The warmest month (with the highest average high temperature) is July (21.2°C).
The month with the lowest average high temperature is January (-3.1°C).

  • Average low temperature in December: -8.2°C

The month with the highest average low temperature is July (10.7°C).
The coldest month (with the lowest average low temperature) is February (-11°C).

  • Average rainfall in December: 49mm

The wettest month (with the highest rainfall) is August (70mm).
The driest month (with the lowest rainfall) is April (32mm).

  • Average rainfall days in December: 23 days

The month with the highest number of rainy days is January (24 days).
The month with the lowest number of rainy days is June (15 days).

  • Average sea temperature in December: 3°C

The best month for swimming (with the highest average sea temperature) is August (15°C).
Coldest months (with the lowest average sea temperature) are February and March (0°C).

  • Average daylight in December: 7h

The month with the longest days is June (Average daylight: 24h).
The month with shortest days is December (Average daylight: 7h).

  • Average sunshine in December: 0.7h

The month with most sunshine is June (Average sunshine: 9.5h).
The month with least sunshine is December (Average sunshine: 0.7h).

  • Average UV index in December: 0

Months with the highest UV index are June and July (UV index 4).
Months with the lowest UV index are January, February, November and December (UV index 0).