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December Weather in Llanfechell, United Kingdom

Last updated: August 27, 2025

In December, the average temperature in Llanfechell, United Kingdom hovers around 9°C (48°F), with a minimum of 4°C (39°F) and a maximum reaching 13°C (56°F). Expect a fair amount of rainfall, with 145 mm (5.7 in) of precipitation spread across 21 days. Additionally, brace yourself for high humidity levels at an average of 89%.

December Temperature in Llanfechell

In December in Llanfechell, the average temperature is 9°C (48°F). Maximums can reach 13°C (56°F) and minimums can be as low as 4°C (39°F). Be sure to pack layers to stay comfortable during your travels.

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

The chart illustrates December temperature patterns in Llanfechell, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Llanfechell, December typically has an average temperature of 9°C (48°F), with highs reaching up to 13°C (56°F) and lows dropping to around 4°C (39°F).
JanFebMarAprMayJunJulAugSepOctNovDec464546485256596059555147
Data source: Temperature data for Llanfechell 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 Llanfechell

In Llanfechell in December, the total precipitation amount is 145 mm (5.7 in) spread over 21 days.

December Precipitation Trends in Llanfechell

The chart displays monthly precipitation patterns in Llanfechell, 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 Llanfechell, December typically receives around 145 mm (5.7 inches) of precipitation spread over approximately 21 days.
JanFebMarAprMayJunJulAugSepOctNovDec8799914146776891101147142145
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Llanfechell

In Llanfechell in December humidity is 89%. With an average temperature of 9°C (48°F), this humidity feels like a chill that lingers in the air, wrapping around you like a damp blanket, making outdoor activities challenging and encouraging a cozy retreat indoors.

December Average Humidity in Llanfechell

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

In Llanfechell 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 Llanfechell.

Maximum UV Index Levels in Llanfechell for December

The chart shows the monthly maximum UV Index (UVI) for Llanfechell 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 Llanfechell typically reaches 1, which falls under the low exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec124578875321
Data source: Llanfechell 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 Llanfechell Compares to Other Months

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

This table compares monthly weather conditions in Llanfechell, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather8°C (46°F)87 mm (3.4 inches)89%low
February Weather7°C (46°F)99 mm (3.9 inches)88%low
March Weather8°C (46°F)91 mm (3.6 inches)86%moderate
April Weather9°C (48°F)41 mm (1.6 inches)84%moderate
May Weather11°C (52°F)46 mm (1.8 inches)79%high
June Weather13°C (56°F)77 mm (3.0 inches)81%very high
July Weather15°C (59°F)68 mm (2.7 inches)78%very high
August Weather16°C (60°F)91 mm (3.6 inches)79%high
September Weather15°C (59°F)101 mm (4.0 inches)85%moderate
October Weather13°C (55°F)147 mm (5.8 inches)90%moderate
November Weather10°C (51°F)142 mm (5.6 inches)91%low
December Weather9°C (48°F)145 mm (5.7 inches)89%low

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