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December Weather in Saint Dennis, United Kingdom

Last updated: August 27, 2025

In December, the average temperature in Saint Dennis, United Kingdom hovers around 9°C (48°F), with nighttime lows dipping to 1°C (34°F) and daytime highs reaching up to 14°C (57°F). Expect rain during approximately 21 days, accumulating to about 131 mm (5.1 in) of precipitation. With the average humidity at a comfortable 80%, it's a month where you might want to keep an umbrella handy!

December Temperature in Saint Dennis

In December in Saint Dennis, the average temperature is 9°C (48°F). The maximum can reach 14°C (57°F), while the minimum can be as low as 1°C (34°F). This weather makes Saint Dennis a perfect destination for travelers looking to enjoy crisp, cool days filled with outdoor activities.

December Weather in Saint Dennis: Daily Temperature Highs, Lows, and Averages

The chart illustrates December temperature patterns in Saint Dennis, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Saint Dennis, December typically has an average temperature of 9°C (48°F), with highs reaching up to 14°C (57°F) and lows dropping to around 1°C (34°F).
JanFebMarAprMayJunJulAugSepOctNovDec454647505459626159555048
Data source: Temperature data for Saint Dennis 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 Saint Dennis

In Saint Dennis in December, the precipitation amount reaches 131 mm (5.1 in) over the course of 21 days.

December Precipitation Trends in Saint Dennis

The chart displays monthly precipitation patterns in Saint Dennis, 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 Saint Dennis, December typically receives around 131 mm (5.1 inches) of precipitation spread over approximately 21 days.
JanFebMarAprMayJunJulAugSepOctNovDec748689486793727377119102131
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Saint Dennis

In Saint Dennis in December humidity is 80%. With an average temperature of 9°C (48°F), this humidity feels like a damp chill that seeps into your bones, making outdoor activities less enjoyable and travel quite uncomfortable.

December Average Humidity in Saint Dennis

This chart illustrates the average monthly humidity levels in Saint Dennis, 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 Saint Dennis is approximately 80%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec81%84%83%84%85%86%87%86%85%85%82%80%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Saint Dennis

In Saint Dennis 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 Saint Dennis.

Maximum UV Index Levels in Saint Dennis for December

The chart shows the monthly maximum UV Index (UVI) for Saint Dennis 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 Saint Dennis typically reaches 1, which falls under the low exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec224679876421
Data source: Saint Dennis 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 Saint Dennis Compares to Other Months

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

This table compares monthly weather conditions in Saint Dennis, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather7°C (46°F)74 mm (2.9 inches)81%low
February Weather8°C (46°F)86 mm (3.4 inches)84%low
March Weather8°C (47°F)89 mm (3.5 inches)83%moderate
April Weather10°C (50°F)48 mm (1.9 inches)84%high
May Weather12°C (54°F)67 mm (2.6 inches)85%high
June Weather15°C (59°F)93 mm (3.6 inches)86%very high
July Weather17°C (63°F)72 mm (2.8 inches)87%very high
August Weather16°C (62°F)73 mm (2.9 inches)86%high
September Weather15°C (59°F)77 mm (3.0 inches)85%high
October Weather13°C (55°F)118 mm (4.7 inches)85%moderate
November Weather10°C (50°F)102 mm (4.0 inches)82%low
December Weather9°C (48°F)131 mm (5.1 inches)80%low

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