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December Weather in Dublin, United States

Last updated: June 24, 2025

In Dublin, United States, the average temperature in December hovers around 10°C (50°F), with a minimum dipping to -1°C (30°F) and a pleasant maximum of 22°C (73°F). Expect around 76 mm (3.0 in) of precipitation over 9 days, accompanied by a high average humidity of 80%. Ideal for those who appreciate a cool, crisp climate!

December Temperature in Dublin

In December in Dublin, the average temperature is 10°C (50°F), with maximums reaching up to 22°C (73°F) and minimums dipping as low as -1°C (30°F). This variability in temperature makes it important for travelers to pack layers to ensure comfort during their stay.

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

The chart illustrates December temperature patterns in Dublin, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Dublin, December typically has an average temperature of 10°C (50°F), with highs reaching up to 22°C (73°F) and lows dropping to around -1°C (30°F).
JanFebMarAprMayJunJulAugSepOctNovDec505254576166686867635550
Data source: Temperature data for Dublin 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 Dublin

In Dublin in December, the precipitation amount is 76 mm (3.0 in) spread over a period of 9 days.

December Precipitation Trends in Dublin

The chart displays monthly precipitation patterns in Dublin, 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 Dublin, December typically receives around 76 mm (3.0 inches) of precipitation spread over approximately 9 days.
JanFebMarAprMayJunJulAugSepOctNovDec94897730172002223876
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Dublin

In Dublin in December, humidity is 80%. With an average temperature of 10°C (50°F), this humidity feels like a damp chill enveloping you, making traveling somewhat uncomfortable as it seeps into your clothes and clings to your skin, leaving you longing for a cozy indoor refuge.

December Average Humidity in Dublin

This chart illustrates the average monthly humidity levels in Dublin, 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 Dublin is approximately 80%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec82%84%82%78%71%64%59%54%55%62%78%80%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Dublin

In Dublin in December, the maximum UV index is 3, which corresponds to a moderate Exposure Category. The time to burn is approximately 30 minutes. For more details on the hourly UV index in Dublin, you can check the information here.

Maximum UV Index Levels in Dublin for December

The chart shows the monthly maximum UV Index (UVI) for Dublin 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 Dublin typically reaches 3, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec3589101111109753
Data source: Dublin 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 Dublin Compares to Other Months

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

This table compares monthly weather conditions in Dublin, showing how December’s temperature, precipitation, humidity, and UV index levels differ from those of other months.
 TemperaturePrecipitationHumidityUV
January Weather10°C (50°F)94 mm (3.7 inches)82%moderate
February Weather11°C (52°F)89 mm (3.5 inches)84%moderate
March Weather12°C (54°F)77 mm (3.0 inches)82%very high
April Weather14°C (58°F)30 mm (1.2 inches)78%very high
May Weather16°C (61°F)17 mm (0.7 inches)71%very high
June Weather19°C (66°F)2 mm (0.1 inches)64%extreme
July Weather20°C (68°F)0 mm (0.0 inches)58%extreme
August Weather20°C (69°F)0 mm (0.0 inches)54%very high
September Weather20°C (68°F)2 mm (0.1 inches)55%very high
October Weather17°C (63°F)22 mm (0.9 inches)62%high
November Weather13°C (55°F)38 mm (1.5 inches)78%moderate
December Weather10°C (50°F)76 mm (3.0 inches)80%moderate

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