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December Weather in Kopavogur, Iceland

Last updated: August 23, 2025

In December, the average temperature in Kopavogur, Iceland hovers around 1°C (34°F). Expect chilly conditions, with minimums dipping to -9°C (16°F) and maximums reaching up to 10°C (50°F). During this time, precipitation is notable, accumulating around 114 mm (4.5 in) over approximately 16 days, all while the air remains quite humid, averaging 84%.

December Temperature in Kopavogur

In December in Kopavogur, the average temperature is 1°C (34°F). Maximum can reach 10°C (50°F) and minimum can be as low as -9°C (16°F). It's advisable to pack warm clothing and be prepared for chilly conditions if you're planning to travel during this time.

December Weather in Kopavogur: Daily Temperature Highs, Lows, and Averages

The chart illustrates December temperature patterns in Kopavogur, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Kopavogur, December typically has an average temperature of 1°C (34°F), with highs reaching up to 10°C (50°F) and lows dropping to around -9°C (16°F).
JanFebMarAprMayJunJulAugSepOctNovDec333335404449525247423634
Data source: Temperature data for Kopavogur generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

December Precipitation in Kopavogur

In Kopavogur in December, the precipitation amount is 114 mm (4.5 in), occurring over a span of 16 days.

December Precipitation Trends in Kopavogur

The chart displays monthly precipitation patterns in Kopavogur, with values for each month alongside December’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how December’s conditions compare to those of other months. In Kopavogur, December typically receives around 114 mm (4.5 inches) of precipitation spread over approximately 16 days.
JanFebMarAprMayJunJulAugSepOctNovDec118135105138124978190163111112114
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Kopavogur

In Kopavogur in December humidity is 84%. With an average temperature of 1°C (34°F), this humidity feels like a biting chill that seeps into your bones, making travel uncomfortable and requiring extra layers to keep warm while navigating the damp air.

December Average Humidity in Kopavogur

This chart illustrates the average monthly humidity levels in Kopavogur, with December’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In December, average humidity in Kopavogur is approximately 84%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec84%82%85%81%83%82%86%87%87%88%85%84%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Kopavogur

In Kopavogur in December, the maximum UV index is 1, which corresponds to a low Exposure Category. This means you have a time to burn of 45 minutes. For more details, you can check the Hourly UV Index in Kopavogur.

Maximum UV Index Levels in Kopavogur for December

The chart shows the monthly maximum UV Index (UVI) for Kopavogur in December, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues. In December, the maximum UV index in Kopavogur typically reaches 1, which falls under the low exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec112356643211
Data source: Kopavogur December UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

  •  Extreme (11+): Avoid the sun, stay in shade.
  •  Very High (8-10): Limit sun exposure.
  •  High (6-7): Use SPF 30+ and protective clothing.
  •  Moderate (3-5): Midday shade recommended.
  •  Low (0-2): No protection needed.

How December Weather in Kopavogur Compares to Other Months

Weather in Kopavogur varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Kopavogur, focusing on differences in temperature, rainfall, humidity, and UV levels.

This table compares monthly weather conditions in Kopavogur, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather1°C (33°F)118 mm (4.6 inches)84%low
February Weather1°C (34°F)135 mm (5.3 inches)82%low
March Weather2°C (35°F)105 mm (4.1 inches)85%low
April Weather4°C (40°F)138 mm (5.4 inches)81%moderate
May Weather7°C (44°F)124 mm (4.9 inches)83%moderate
June Weather9°C (49°F)97 mm (3.8 inches)82%high
July Weather11°C (53°F)81 mm (3.2 inches)86%high
August Weather11°C (52°F)90 mm (3.6 inches)87%moderate
September Weather8°C (47°F)163 mm (6.4 inches)87%moderate
October Weather5°C (42°F)111 mm (4.4 inches)88%low
November Weather2°C (36°F)112 mm (4.4 inches)85%low
December Weather1°C (34°F)114 mm (4.5 inches)84%low

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