Reykjavík
Iceland
Long term weather forecast
Long term weather forecast

December weather forecast and Climate
Reykjavík, Iceland

  • Average high temperature in December: 2.2°C

Warmest month (with highest average high temperature) is July (13.3°C).
Month with lowest average high temperature is January (1.9°C).

  • Average low temperature in December: -2.8°C

Month with highest average low temperature is July (8.3°C).
Coldest month (with lowest average low temperature) is January (-3°C).

  • Average rainfall in December: 78.7mm

Wettest month (with highest rainfall) is October (85.6mm).
Driest month (with lowest rainfall) is May (43.8mm).

  • Average rainfall days in December: 13.9 days

Month with highest number of rainy days is October (14.5 days).
Month with lowest number of rainy days is May (9.8 days).

  • Average sea temperature in December: 7°C

Best months for swimming (with highest average sea temperature) are July, August and September (11°C).
Coldest months (with lowest average sea temperature) are January, February, March, April and December (7°C).

  • Average daylight in December: 4h

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

  • Average sunshine in December: 0.4h

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

  • Average UV index in December: 0

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

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