Swansea Weather in December

What's the weather like in Swansea (Wales) in December 2022?

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

December is in the winter in Swansea and is typically the 3rd coldest month of the year. Daytime maximum temperatures average around a cool 9°C (47°F), whilst at night 4°C (39°F) is normal.

Swansea weather averages (imperial / metric)
Daytime temperature 8.6°C 47.4°F
Nightly temperature 3.9°C 38.9°F
Average temperature 6.2°C 43.2°F
Daily sunshine 1.8 hrs
Avg rainfall 140 mm 5.5 ins
Rainy days 20 days
Sea temperature 11.6°C 52.9°F
Humidity 91%
Windspeed 21.6kph 14 mph

On average December is the wettest month of the year in Swansea with around 140mm 5.5 inches of rain making it a wet time to visit. This rainfall is typically spread over 20 days, although this may vary considerably.

On the flip side this corresponds to an average of 1.8 hours of sunshine per day.

December temperatures in Swansea

Swansea average temperature in December

December rainfall

Swansea average rain in December

December hourly sunshine

Swansea 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 Swansea in December 2022.

Other monthly averages

Best places to visit in December

UV index Best time to go?

Swansea weather stats

Swansea weather statistics
Hottest month: July 19.5°C 67.1°F
Driest month: April 69mm 2.7ins
Sunniest month: May 7hrs
Coldest month: February 7.2°C 45°F
Wettest month: December 140mm 5.5ins
Map showing location of Swansea (51.62079, -3.94323)

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