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December Weather in Llanilar, United Kingdom

Last updated: August 27, 2025

In December, the average temperature in Llanilar, United Kingdom hovers around 6°C (44°F). However, be prepared for chilly nights, as temperatures can dip as low as -3°C (27°F), while daytime can reach a pleasant 13°C (55°F). Expect quite a bit of rain, with an average precipitation of 157 mm (6.2 in) spread over 20 days, and don't forget your umbrella! With an average humidity of 89%, the air will feel quite damp, adding to the overall chill of the season.

December Temperature in Llanilar

In December in Llanilar, the average temperature is 6°C (44°F). Maximum temperatures can reach 13°C (55°F), while minimum temperatures can drop as low as -3°C (27°F). It's advisable to pack layers and prepare for varying weather conditions when traveling during this month.

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

The chart illustrates December temperature patterns in Llanilar, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Llanilar, December typically has an average temperature of 6°C (44°F), with highs reaching up to 13°C (55°F) and lows dropping to around -3°C (27°F).
JanFebMarAprMayJunJulAugSepOctNovDec414244475258615956514643
Data source: Temperature data for Llanilar 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 Llanilar

In Llanilar in December, the precipitation amount is 157 mm (6.2 in) spread over 20 days.

December Precipitation Trends in Llanilar

The chart displays monthly precipitation patterns in Llanilar, 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 Llanilar, December typically receives around 157 mm (6.2 inches) of precipitation spread over approximately 20 days.
JanFebMarAprMayJunJulAugSepOctNovDec9313012563909995126109146127157
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Llanilar

In Llanilar in December, humidity is 89%. With an average temperature of 6°C (44°F), this humidity feels like an uncomfortable chill that clings to your skin, making it difficult to enjoy outdoor activities and ideal for layered clothing.

December Average Humidity in Llanilar

This chart illustrates the average monthly humidity levels in Llanilar, 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 Llanilar is approximately 89%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec89%88%86%85%79%81%78%79%85%90%91%89%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Llanilar

In Llanilar 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 Llanilar.

Maximum UV Index Levels in Llanilar for December

The chart shows the monthly maximum UV Index (UVI) for Llanilar 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 Llanilar typically reaches 1, which falls under the low exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec124578876421
Data source: Llanilar 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 Llanilar Compares to Other Months

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

This table compares monthly weather conditions in Llanilar, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather5°C (41°F)92 mm (3.6 inches)89%low
February Weather6°C (42°F)130 mm (5.1 inches)88%low
March Weather6°C (44°F)125 mm (4.9 inches)86%moderate
April Weather9°C (48°F)63 mm (2.5 inches)84%moderate
May Weather11°C (52°F)90 mm (3.5 inches)79%high
June Weather14°C (58°F)99 mm (3.9 inches)81%very high
July Weather16°C (61°F)95 mm (3.7 inches)78%very high
August Weather15°C (60°F)126 mm (5.0 inches)79%high
September Weather13°C (56°F)109 mm (4.3 inches)85%high
October Weather11°C (51°F)146 mm (5.7 inches)90%moderate
November Weather8°C (46°F)127 mm (5.0 inches)91%low
December Weather6°C (44°F)157 mm (6.2 inches)89%low

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