December Weather in Dundrum, United Kingdom

Last updated: August 27, 2025

In December, the average temperature in Dundrum, United Kingdom is a cool 7°C (45°F). You can expect temperatures to dip to a minimum of 1°C (34°F) and rise to a maximum of 13°C (55°F). Precipitation is likely, with an average of 107 mm (4.2 in) spread across 15 days. Additionally, the air tends to be quite humid, with an average humidity of 86%.

December Temperature in Dundrum

In December in Dundrum, the average temperature is 7°C (45°F). The maximum can reach 13°C (55°F), and the minimum can be as low as 1°C (34°F). It's advisable to pack layers if you plan on traveling during this time to stay comfortable in varying temperatures.

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

The chart illustrates December temperature patterns in Dundrum, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Dundrum, December typically has an average temperature of 7°C (45°F), with highs reaching up to 13°C (55°F) and lows dropping to around 1°C (34°F).
JanFebMarAprMayJunJulAugSepOctNovDec444445475257605957534845
Data source: Temperature data for Dundrum 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 Dundrum

In Dundrum in December, the total precipitation amount is 107 mm (4.2 in) spread over 15 days.

December Precipitation Trends in Dundrum

The chart displays monthly precipitation patterns in Dundrum, 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 Dundrum, December typically receives around 107 mm (4.2 inches) of precipitation spread over approximately 15 days.
JanFebMarAprMayJunJulAugSepOctNovDec69102914360768411583110120107
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Dundrum

In Dundrum in December, humidity is 86%. With an average temperature of 7°C (45°F), this humidity feels like a damp chill that seeps into your bones, making outdoor exploration a bit uncomfortable and necessitating cozy layers to stay warm while navigating the moist air.

December Average Humidity in Dundrum

This chart illustrates the average monthly humidity levels in Dundrum, 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 Dundrum is approximately 86%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec87%86%86%85%82%84%86%86%88%89%90%87%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Dundrum

In Dundrum 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 Dundrum.

Maximum UV Index Levels in Dundrum for December

The chart shows the monthly maximum UV Index (UVI) for Dundrum 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 Dundrum typically reaches 1, which falls under the low exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec123578865321
Data source: Dundrum 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 Dundrum Compares to Other Months

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

This table compares monthly weather conditions in Dundrum, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather6°C (44°F)69 mm (2.7 inches)87%low
February Weather7°C (44°F)101 mm (4.0 inches)86%low
March Weather7°C (45°F)91 mm (3.6 inches)86%moderate
April Weather8°C (47°F)43 mm (1.7 inches)85%moderate
May Weather11°C (52°F)60 mm (2.4 inches)82%high
June Weather14°C (57°F)76 mm (3.0 inches)84%very high
July Weather15°C (60°F)84 mm (3.3 inches)86%very high
August Weather15°C (60°F)115 mm (4.5 inches)86%high
September Weather14°C (57°F)83 mm (3.3 inches)88%moderate
October Weather11°C (53°F)110 mm (4.3 inches)89%moderate
November Weather9°C (48°F)120 mm (4.7 inches)90%low
December Weather7°C (45°F)107 mm (4.2 inches)86%low

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