Reykjavík
Iceland
Long-term weather forecast
Long-term weather forecast
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December weather forecast and Climate
Reykjavík, Iceland

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The city buildings of Reykjavík, the capital city of Iceland, with a view of the sea out yonder, and a mountain with a snowy peak in the far distance
The city buildings of Reykjavík, the capital city of Iceland, with a view of the sea out yonder, and a mountain with a snowy peak in the far distance
  • The average high temperature in December: 2.2°C

The warmest month (with the highest average high temperature) is July (13.3°C).
The month with the lowest average high temperature is January (1.9°C).

  • The average low temperature in December: -2.8°C

The month with the highest average low temperature is July (8.3°C).
The coldest month (with the lowest average low temperature) is January (-3°C).

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  • The average rainfall in December: 78.7mm

The wettest month (with the highest rainfall) is October (85.6mm).
The driest month (with the lowest rainfall) is May (43.8mm).

  • The average rainfall days in December: 13.9 days

The month with the highest number of rainy days is October (14.5 days).
The month with the lowest number of rainy days is May (9.8 days).

  • The average sea temperature in December: 6.7°C

The best month for swimming (with the highest average sea temperature) is July (11.4°C).
The coldest month (with the lowest average sea temperature) is March (5.1°C).

  • The average daylight in December: 4h

The month with the longest days is June (Average daylight: 21h).
The month with shortest days is December (Average daylight: 4h).

  • The average sunshine in December: 0.4h

The month with most sunshine is May (Average sunshine: 6.2h).
The month with least sunshine is December (Average sunshine: 0.4h).

  • The 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).

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