Castlebar Weather in December

What's the weather like in Castlebar (Connaught) in December 2024?

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

December is in the winter in Castlebar and is typically the 3rd coldest month of the year. Daytime maximum temperatures average around a cool 8°C (47°F), whilst at night 3°C (37°F) is normal.

Castlebar weather averages (imperial / metric)
Daytime temperature 8.2°C 46.7°F
Nightly temperature 2.9°C 37.1°F
Average temperature 5.5°C 41.9°F
Daily sunshine 1.3 hrs
Avg rainfall 130 mm 5.1 ins
Rainy days 23 days
Sea temperature 10.7°C 51.3°F
Humidity 92%
Windspeed 21.2kph 13 mph

On average December is the 3rd wettest month of the year in Castlebar with around 130mm 5.1 inches of rain making it a wet time to visit. This rainfall is typically spread over 23 days, although this may vary considerably.

On the flip side this corresponds to an average of 1.3 hours of sunshine per day.

December temperatures in Castlebar

Castlebar average temperature in December

December rainfall

Castlebar average rain in December

December hourly sunshine

Castlebar 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 Castlebar in December 2024.

Other monthly averages

Best places to visit in December

UV index Best time to go?

Castlebar weather stats

Castlebar weather statistics
Hottest month: July 17.6°C 63.7°F
Driest month: April 66mm 2.6ins
Sunniest month: May 5.9hrs
Coldest month: January 7.3°C 45.1°F
Wettest month: November 134mm 5.3ins
Map showing location of Castlebar (53.85, -9.3) Castlebar map pin © Google

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