December weather forecast and climate
Keflavík International Airport, Iceland

Average sea temperature in December - Keflavík International Airport, Iceland
  • Average sea temperature in December: 6.6°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 (4.8°C).

Average daylight in December - Keflavík International Airport, Iceland
  • Average daylight in December: 4.5h

The month with the longest days is June (Average daylight: 20.8h).
The month with shortest days is December (Average daylight: 4.5h).

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