Dublin Weather in December

What's the weather like in Dublin (Leinster) in December 2021?

The climate in Dublin during December can be summarized as cool and wet.

December is in the winter in Dublin and is typically the 3rd coldest month of the year. Daytime maximum temperatures average around a cool 8°C (46°F), whilst at night 3°C (37°F) is normal.

Dublin weather averages (imperial / metric)
Daytime temperature 7.7°C 45.8°F
Nightly temperature 2.6°C 36.6°F
Average temperature 5.1°C 41.2°F
Daily sunshine 1.9 hrs
Avg rainfall 120 mm 4.7 ins
Rainy days 18 days
Sea temperature 10.5°C 50.9°F
Humidity 89%
Windspeed 23kph 14 mph

On average December is the wettest month of the year in Dublin with around 120mm 4.7 inches of rain making it a wet time to visit. This rainfall is typically spread over 18 days, although this may vary considerably.

On the flip side this corresponds to an average of 1.9 hours of sunshine per day.

December temperatures in Dublin

Dublin average temperature in December

December rainfall

Dublin average rain in December

December hourly sunshine

Dublin average rain in December

The data used in these monthly averages covers a period of over 100 years right up until last year. As such they are a valid prediction of what to expect for the weather in Dublin in December 2021.

Other monthly averages

UV index Best time to go?

Dublin weather stats

Dublin weather statistics
Hottest month: July 18.2°C 64.8°F
Driest month: July 63mm 2.5ins
Sunniest month: May 6.6hrs
Coldest month: February 6.6°C 43.9°F
Wettest month: December 120mm 4.7ins
Map showing location of Dublin (53.33306, -6.24889)

Locations nearby

Top Ireland locations

Change units