nomadseason

December Weather in Grundarhverfi, Iceland

Last updated: August 23, 2025

In December, the average temperature in Grundarhverfi, Iceland hovers around 0°C (32°F), with temperatures dipping as low as -15°C (5°F) and peaking at 10°C (50°F). Expect 107 mm (4.2 in) of precipitation spread across 17 days, contributing to an average humidity of 95%. This blend of chilly weather and moisture makes for a uniquely brisk atmosphere!

December Temperature in Grundarhverfi

In December in Grundarhverfi, the average temperature is 0°C (32°F). Maximums can reach 10°C (50°F) and minimums can be as low as -15°C (5°F). It's advisable to pack warm clothing and prepare for chilly weather if you're planning to visit during this time.

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

The chart illustrates December temperature patterns in Grundarhverfi, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Grundarhverfi, December typically has an average temperature of 0°C (32°F), with highs reaching up to 10°C (50°F) and lows dropping to around -15°C (5°F).
JanFebMarAprMayJunJulAugSepOctNovDec303133394449525246413431
Data source: Temperature data for Grundarhverfi generated using information from the Copernicus Climate Change Service.
Choose your preferred temperature unit
The average of daily temperatures (24 hours) calculated across all days in the month.

December Precipitation in Grundarhverfi

In Grundarhverfi in December, the precipitation amount is 107 mm (4.2 in) and occurs over 17 days.

December Precipitation Trends in Grundarhverfi

The chart displays monthly precipitation patterns in Grundarhverfi, 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 Grundarhverfi, December typically receives around 107 mm (4.2 inches) of precipitation spread over approximately 17 days.
JanFebMarAprMayJunJulAugSepOctNovDec11813110612311894768316394105107
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

December Humidity in Grundarhverfi

In Grundarhverfi in December, humidity is 95%. With an average temperature of 0°C (32°F), this humidity feels like walking through a thick fog, making each breath feel heavy and damp, while the chill in the air adds an extra layer of discomfort for traveling.

December Average Humidity in Grundarhverfi

This chart illustrates the average monthly humidity levels in Grundarhverfi, 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 Grundarhverfi is approximately 95%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec96%95%94%87%85%81%86%88%92%93%94%95%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Grundarhverfi

In Grundarhverfi 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 Grundarhverfi.

Maximum UV Index Levels in Grundarhverfi for December

The chart shows the monthly maximum UV Index (UVI) for Grundarhverfi 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 Grundarhverfi typically reaches 1, which falls under the low exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec112456643211
Data source: Grundarhverfi 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 Grundarhverfi Compares to Other Months

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

This table compares monthly weather conditions in Grundarhverfi, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-1°C (30°F)118 mm (4.6 inches)96%low
February Weather-1°C (31°F)131 mm (5.1 inches)95%low
March Weather1°C (33°F)106 mm (4.2 inches)94%low
April Weather4°C (39°F)123 mm (4.8 inches)87%moderate
May Weather7°C (44°F)118 mm (4.6 inches)85%moderate
June Weather9°C (49°F)94 mm (3.7 inches)81%high
July Weather11°C (53°F)76 mm (3.0 inches)86%high
August Weather11°C (52°F)83 mm (3.3 inches)88%moderate
September Weather8°C (47°F)162 mm (6.4 inches)92%moderate
October Weather5°C (41°F)94 mm (3.7 inches)93%low
November Weather1°C (34°F)105 mm (4.1 inches)94%low
December Weather0°C (32°F)107 mm (4.2 inches)95%low

Compare Grundarhverfi's Climate with Cities Worldwide