Swansea weather in December (Wales, United Kingdom)

What kind of weather does December bring to Swansea? Get all the weather information you need to plan your visit.

Temperatures

December in Swansea generally includes low temperatures and high rainfall. December marks the winter season. Daytime temperatures hover around 10°C, while nights can cool down to about 5°C.

Precipitation

Swansea in December usually receives high rainfall, averaging around 146 mm for the month. With this being the rainiest month, having an umbrella is essential to avoid unexpected rain. Historically, approximately 20 days this month are expected to have rain.

Average sunshine

The city usually sees around 49 hours of sunlight, indicating fewer sunny days.

If you prefer dry days with pleasant temperatures, December may not be the ideal month to visit Swansea. July typically offers the most optimal weather. In contrast, January, February, November and December tend to have less optimal conditions.

For an in-depth look at the yearly conditions, visit our specialized Swansea climate page with graphs.

 

Swansea, monthly averages in December

Min Temperature 5°C  

Max Temperature 10°C  

Chance of Rain 66%  

Precipitation 146 mm  

Rainy days 20 days  

Humidity 89% *  

Sunshine 49 hours *  

Percentage Sunshine 19% *  

Data from: Cardiff, the United Kingdom (48 KM, 29 Miles).

Where to go in the United Kingdom in December

Find out more about the weather in the United Kingdom and which places have the best travel conditions in this month.

Weather conditions Weather

Temperatures

Precipitation

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Legend perfect weather pleasant tolerable unpleasant poor

Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C and 29°C and not too much precipitation (less than 90 mm a month).

So, what should you wear in this month?

Wear a base layer in cold weather; this is the #1 thing you can do to increase your overall body temperature.

What To Do

We rated the following activities from 1 (least suitable) to 10 (best) to do.

Swimming

4/10

Cycling

4/10

Walking

4/10

Camping

3/10

Outdoor sports

4/10

Interested in more climate information?

This site provides you with all the information you need about the climate in Swansea.

Our site offers climate and forecast data for every country in the world. Are you going to the United Kingdom? On this website you can find historical weather averages for many cities in the United Kingdom. Not sure yet where to go? We now have a tool which recommends destinations that suit your ideal travel conditions. Find out where to go with our weather planner.