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December Weather in Westbury-sub-Mendip, United Kingdom

Last updated: August 27, 2025

In December, the average temperature in Westbury-sub-Mendip, United Kingdom hovers around 7°C (45°F), making it a cool and crisp time of year. Expect minimum temperatures to dip to -2°C (28°F) while highs can reach up to 14°C (58°F). With an average humidity of 89%, the air can feel quite damp. Prepare for 94 mm (3.7 in) of precipitation over 16 days, so bringing an umbrella is highly recommended!

December Temperature in Westbury-sub-Mendip

In December, in Westbury-sub-Mendip, the average temperature is 7°C (45°F). Maximums can reach 14°C (58°F), and minimums can be as low as -2°C (28°F). It’s advisable to pack layers and prepare for varying weather conditions while traveling during this time.

December Weather in Westbury-sub-Mendip: Daily Temperature Highs, Lows, and Averages

The chart illustrates December temperature patterns in Westbury-sub-Mendip, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Westbury-sub-Mendip, December typically has an average temperature of 7°C (45°F), with highs reaching up to 14°C (58°F) and lows dropping to around -2°C (28°F).
JanFebMarAprMayJunJulAugSepOctNovDec424446495461646259544745
Data source: Temperature data for Westbury-sub-Mendip 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 Westbury-sub-Mendip

In Westbury-sub-Mendip in December, the precipitation amount is 94 mm (3.7 in) over a span of 16 days.

December Precipitation Trends in Westbury-sub-Mendip

The chart displays monthly precipitation patterns in Westbury-sub-Mendip, 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 Westbury-sub-Mendip, December typically receives around 94 mm (3.7 inches) of precipitation spread over approximately 16 days.
JanFebMarAprMayJunJulAugSepOctNovDec5567764966726880561066694
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Westbury-sub-Mendip

In Westbury-sub-Mendip in December, humidity is 89%. With an average temperature of 7°C (45°F), this humidity feels like stepping into a damp cloud, making traveling quite uncomfortable as the moisture clings to your skin and clothes, turning even mild activity into a sweaty ordeal.

December Average Humidity in Westbury-sub-Mendip

This chart illustrates the average monthly humidity levels in Westbury-sub-Mendip, 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 Westbury-sub-Mendip is approximately 89%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec89%88%86%84%80%80%70%73%79%89%90%89%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Westbury-sub-Mendip

In Westbury-sub-Mendip 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 Westbury-sub-Mendip.

Maximum UV Index Levels in Westbury-sub-Mendip for December

The chart shows the monthly maximum UV Index (UVI) for Westbury-sub-Mendip 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 Westbury-sub-Mendip typically reaches 1, which falls under the low exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec124678876421
Data source: Westbury-sub-Mendip 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 Westbury-sub-Mendip Compares to Other Months

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

This table compares monthly weather conditions in Westbury-sub-Mendip, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather6°C (42°F)55 mm (2.2 inches)88%low
February Weather7°C (44°F)67 mm (2.6 inches)88%low
March Weather8°C (46°F)76 mm (3.0 inches)86%moderate
April Weather10°C (50°F)49 mm (1.9 inches)84%high
May Weather12°C (55°F)66 mm (2.6 inches)80%high
June Weather16°C (61°F)71 mm (2.8 inches)80%very high
July Weather18°C (64°F)68 mm (2.7 inches)70%very high
August Weather17°C (63°F)80 mm (3.1 inches)73%high
September Weather15°C (59°F)56 mm (2.2 inches)79%high
October Weather12°C (54°F)106 mm (4.2 inches)89%moderate
November Weather9°C (48°F)66 mm (2.6 inches)90%low
December Weather7°C (45°F)94 mm (3.7 inches)89%low

Compare Westbury-sub-Mendip's Climate with Cities Worldwide