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December Weather in Swords, Ireland

Last updated: August 23, 2025

In December, the average temperature in Swords, Ireland hovers around 7°C (45°F). Conditions can vary, with minimums dipping to -2°C (30°F) and maximums reaching 13°C (56°F). Expect around 85 mm (3.4 in) of precipitation over approximately 14 days, accompanied by a relatively high average humidity of 84%. Stay prepared for some chilly and damp days!

December Temperature in Swords

In December in Swords, the average temperature is 7°C (45°F). Maximums can reach 13°C (56°F), and minimums can be as low as -2°C (30°F). Travelers should prepare for cool weather and pack accordingly for fluctuating temperatures.

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

The chart illustrates December temperature patterns in Swords, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Swords, December typically has an average temperature of 7°C (45°F), with highs reaching up to 13°C (56°F) and lows dropping to around -2°C (30°F).
JanFebMarAprMayJunJulAugSepOctNovDec434445485358616157524745
Data source: Temperature data for Swords 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 Swords

In Swords in December, the precipitation amount is 85 mm (3.4 in) spread over 14 days, contributing to the region's overall climate patterns.

December Precipitation Trends in Swords

The chart displays monthly precipitation patterns in Swords, 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 Swords, December typically receives around 85 mm (3.4 inches) of precipitation spread over approximately 14 days.
JanFebMarAprMayJunJulAugSepOctNovDec537373446269739570799385
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Swords

In Swords in December, humidity is 84%. With an average temperature of 7°C (45°F), this humidity feels like a damp chill that seeps into your bones, making travel uncomfortable and necessitating extra layers to stay warm while exploring the sights.

December Average Humidity in Swords

This chart illustrates the average monthly humidity levels in Swords, 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 Swords is approximately 84%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec85%86%86%85%83%85%86%85%86%87%87%84%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Swords

In Swords 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 Swords.

Maximum UV Index Levels in Swords for December

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

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

This table compares monthly weather conditions in Swords, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather6°C (43°F)53 mm (2.1 inches)85%low
February Weather7°C (44°F)73 mm (2.9 inches)86%low
March Weather7°C (45°F)73 mm (2.9 inches)86%moderate
April Weather9°C (48°F)44 mm (1.7 inches)85%moderate
May Weather12°C (53°F)62 mm (2.4 inches)83%high
June Weather15°C (58°F)69 mm (2.7 inches)85%very high
July Weather16°C (62°F)73 mm (2.9 inches)86%very high
August Weather16°C (61°F)95 mm (3.7 inches)85%high
September Weather14°C (57°F)70 mm (2.7 inches)86%moderate
October Weather11°C (53°F)79 mm (3.1 inches)87%moderate
November Weather8°C (48°F)93 mm (3.6 inches)86%low
December Weather7°C (45°F)85 mm (3.4 inches)84%low

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