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December Weather in Gibraltar, United States

Last updated: June 24, 2025

In December, the average temperature in Gibraltar, United States hovers around 1°C (34°F), with potential extremes ranging from a chilly -16°C (4°F) to a mild 13°C (55°F). Expect 74 mm (2.9 in) of precipitation spread over 12 days, contributing to the average humidity of 86%.

December Temperature in Gibraltar

In December in Gibraltar, the average temperature is 1°C (34°F). Maximums can reach 13°C (55°F), and minimums can drop as low as -16°C (4°F). Travelers should be prepared for cold conditions and pack accordingly.

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

The chart illustrates December temperature patterns in Gibraltar, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Gibraltar, December typically has an average temperature of 1°C (34°F), with highs reaching up to 13°C (55°F) and lows dropping to around -16°C (4°F).
JanFebMarAprMayJunJulAugSepOctNovDec283036455869757468564134
Data source: Temperature data for Gibraltar 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 Gibraltar

In Gibraltar in December, the precipitation amount is 74 mm (2.9 in) over a span of 12 days.

December Precipitation Trends in Gibraltar

The chart displays monthly precipitation patterns in Gibraltar, 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 Gibraltar, December typically receives around 74 mm (2.9 inches) of precipitation spread over approximately 12 days.
JanFebMarAprMayJunJulAugSepOctNovDec8583881011218396806811810274
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Gibraltar

In Gibraltar in December, humidity is 86%. With an average temperature of 1°C (34°F), this humidity feels like a chilling embrace, making outdoor adventures brisk and invigorating but challenging for travel.

December Average Humidity in Gibraltar

This chart illustrates the average monthly humidity levels in Gibraltar, 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 Gibraltar is approximately 86%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec88%87%87%88%81%82%81%78%78%82%89%86%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Gibraltar

In Gibraltar in December, the maximum UV index is 2, which corresponds to a low exposure category. With this level of UV radiation, the time to burn is approximately 45 minutes. To learn more about the hourly UV index in Gibraltar, you can visit Hourly UV Index in Gibraltar.

Maximum UV Index Levels in Gibraltar for December

The chart shows the monthly maximum UV Index (UVI) for Gibraltar 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 Gibraltar typically reaches 2, which falls under the low exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec24599101098642
Data source: Gibraltar 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 Gibraltar Compares to Other Months

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

This table compares monthly weather conditions in Gibraltar, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather-2°C (29°F)85 mm (3.3 inches)88%low
February Weather-1°C (30°F)83 mm (3.3 inches)87%moderate
March Weather2°C (37°F)88 mm (3.5 inches)87%moderate
April Weather7°C (46°F)101 mm (4.0 inches)87%very high
May Weather14°C (58°F)121 mm (4.8 inches)81%very high
June Weather21°C (69°F)83 mm (3.3 inches)82%very high
July Weather24°C (75°F)96 mm (3.8 inches)81%very high
August Weather23°C (74°F)80 mm (3.2 inches)78%very high
September Weather20°C (68°F)68 mm (2.7 inches)78%very high
October Weather13°C (57°F)118 mm (4.6 inches)82%high
November Weather5°C (41°F)102 mm (4.0 inches)89%moderate
December Weather1°C (34°F)74 mm (2.9 inches)86%low

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