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December Weather in Ilminster, United Kingdom

Last updated: August 27, 2025

In Ilminster, United Kingdom, the average temperature in December hovers around 7°C (45°F). Prepare for a chill, as minimums can dip to -3°C (27°F), while maximums reach a mild 14°C (58°F). Expect about 86 mm (3.4 in) of precipitation spread over 15 days, contributing to an average humidity of 89%.

December Temperature in Ilminster

In December in Ilminster, the average temperature is 7°C (45°F). Maximum temperatures can reach 14°C (58°F), while minimum temperatures can drop as low as -3°C (27°F). It's advisable to pack layers and prepare for a mix of cool and chilly weather during your travels.

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

The chart illustrates December temperature patterns in Ilminster, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Ilminster, 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 -3°C (27°F).
JanFebMarAprMayJunJulAugSepOctNovDec424445495460646258534745
Data source: Temperature data for Ilminster 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 Ilminster

In Ilminster in December, the precipitation amount is 86 mm (3.4 in) that falls over a span of 15 days.

December Precipitation Trends in Ilminster

The chart displays monthly precipitation patterns in Ilminster, 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 Ilminster, December typically receives around 86 mm (3.4 inches) of precipitation spread over approximately 15 days.
JanFebMarAprMayJunJulAugSepOctNovDec506076537179647649955986
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Ilminster

In Ilminster 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 Ilminster

This chart illustrates the average monthly humidity levels in Ilminster, 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 Ilminster 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 Ilminster

In Ilminster 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 Ilminster.

Maximum UV Index Levels in Ilminster for December

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

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

This table compares monthly weather conditions in Ilminster, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather6°C (42°F)50 mm (2.0 inches)88%low
February Weather6°C (44°F)60 mm (2.4 inches)88%low
March Weather7°C (46°F)76 mm (3.0 inches)86%moderate
April Weather9°C (49°F)53 mm (2.1 inches)84%high
May Weather12°C (54°F)70 mm (2.8 inches)80%high
June Weather16°C (61°F)79 mm (3.1 inches)80%very high
July Weather18°C (64°F)64 mm (2.5 inches)70%very high
August Weather17°C (62°F)76 mm (3.0 inches)73%high
September Weather15°C (59°F)48 mm (1.9 inches)79%high
October Weather12°C (53°F)95 mm (3.7 inches)89%moderate
November Weather8°C (47°F)58 mm (2.3 inches)90%low
December Weather7°C (45°F)86 mm (3.4 inches)89%low

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