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December Weather in Dublin, United States

Last updated: June 24, 2025

In Dublin, United States, the average temperature in December is a crisp 11°C (52°F). Expect a range of weather, with temperatures dipping as low as -5°C (23°F) and soaring to a warm 30°C (87°F). During this month, you'll encounter 37 mm (1.4 in) of precipitation spread over 4 days, contributing to an average humidity level of 87%. Plan your activities accordingly!

December Temperature in Dublin

In December in Dublin, the average temperature is 11°C (52°F). The maximum can reach 30°C (87°F), while the minimum can dip as low as -5°C (23°F). Travelers should be prepared for a wide range of temperatures and pack accordingly.

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 11°C (52°F), with highs reaching up to 30°C (87°F) and lows dropping to around -5°C (23°F).
JanFebMarAprMayJunJulAugSepOctNovDec474960667481858578685752
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 37 mm (1.4 in) over the course of 4 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 37 mm (1.4 inches) of precipitation spread over approximately 4 days.
JanFebMarAprMayJunJulAugSepOctNovDec4271847511963437175983837
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 87%. With an average temperature of 11°C (52°F), this humidity feels like a damp chill that can make your clothes cling uncomfortably, leaving you feeling slightly weighed down while exploring the area.

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 87%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec78%78%77%78%82%78%69%63%66%73%84%87%
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 reaches 4, which corresponds to a moderate Exposure Category. With a time to burn of 30 minutes, it’s important to take precautions to protect your skin. You can find more details in the Hourly UV Index in Dublin for better planning.

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 4, which falls under the moderate exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec478101112121110864
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 Weather8°C (47°F)42 mm (1.6 inches)78%moderate
February Weather10°C (50°F)71 mm (2.8 inches)78%high
March Weather16°C (61°F)84 mm (3.3 inches)77%very high
April Weather19°C (66°F)75 mm (2.9 inches)78%very high
May Weather24°C (75°F)119 mm (4.7 inches)82%extreme
June Weather27°C (82°F)63 mm (2.5 inches)78%extreme
July Weather30°C (85°F)43 mm (1.7 inches)69%extreme
August Weather29°C (85°F)71 mm (2.8 inches)63%extreme
September Weather26°C (79°F)75 mm (2.9 inches)66%very high
October Weather20°C (68°F)98 mm (3.8 inches)73%very high
November Weather14°C (57°F)38 mm (1.5 inches)84%high
December Weather11°C (52°F)37 mm (1.4 inches)87%moderate

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