December Weather in Dublin, United States

Last updated: June 24, 2025

In December, the average temperature in Dublin, United States hovers around 11°C (53°F). Expect a chilly minimum of -5°C (24°F) at times, while pleasant highs can reach up to 26°C (79°F). Be prepared for some rainy days, with 121 mm (4.8 in) of precipitation spread over 10 days. You might want to bring your umbrella, as the average humidity sits at a high 89%!

December Temperature in Dublin

In December, in Dublin, the average temperature is 11°C (53°F). Maximums can reach 26°C (79°F) and minimums can be as low as -5°C (24°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 (53°F), with highs reaching up to 26°C (79°F) and lows dropping to around -5°C (24°F).

Data source: Temperature data for Dublin generated using information from the Copernicus Climate Change Service.

December Precipitation in Dublin

In Dublin in December, the precipitation amount is 121 mm (4.8 in) spread over a period of 10 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 121 mm (4.8 inches) of precipitation spread over approximately 10 days.

Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.

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Millimeters (mm) Inches (in)

December Humidity in Dublin

In Dublin in December humidity is 89%. With an average temperature of 11°C (53°F), this humidity feels like a thick, heavy blanket wrapping around you, making outdoor activities uncomfortable and causing fatigue during travel.

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 89%, offering insight into how humid the weather typically is during this month.

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.

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.
	Temperature	Precipitation	Humidity	UV
January Weather	10°C (51°F)	92 mm (3.6 inches)	86%	moderate
February Weather	13°C (56°F)	116 mm (4.6 inches)	84%	high
March Weather	16°C (61°F)	74 mm (2.9 inches)	83%	very high
April Weather	19°C (67°F)	89 mm (3.5 inches)	81%	very high
May Weather	24°C (76°F)	86 mm (3.4 inches)	81%	extreme
June Weather	27°C (80°F)	108 mm (4.2 inches)	81%	extreme
July Weather	28°C (83°F)	105 mm (4.1 inches)	83%	extreme
August Weather	28°C (83°F)	99 mm (3.9 inches)	81%	extreme
September Weather	26°C (79°F)	107 mm (4.2 inches)	82%	very high
October Weather	22°C (71°F)	91 mm (3.6 inches)	78%	very high
November Weather	14°C (57°F)	58 mm (2.3 inches)	86%	high
December Weather	11°C (53°F)	121 mm (4.8 inches)	89%	moderate