Cardiff weather in December (Wales, United Kingdom)
What can you expect from the weather in Cardiff during December? Check out this comprehensive weather guide.
In December, Cardiff generally has low temperatures and high rainfall. December falls within the winter season. Throughout the daytime, temperatures often hover around 10°C. However, as the sun sets and evening approaches, there's a noticeable cool-down, with temperatures gently dropping to a more temperate 5°C.
Cardiff in December usually receives high rainfall, averaging around 119 mm for the month. Since this is the rainiest month of the year, it's a good idea to carry an umbrella just in case. Delving into the climate records from the past 30 years, one can predict that nearly 19 days of the month will see rainfall.
The area sees fewer sunny days, with a projection of about 49 hours of sunshine. This reduced sunlight makes it ideal for those who prefer cooler, overcast conditions over bright sunny days.
If you're looking for dry conditions and comfortable temperatures, December may not be the ideal month to visit Cardiff. July and August typically offer the best circumstances. While January, February, November and December tend to showcase less optimal conditions.
For an in-depth look at the yearly conditions, visit our specialized Cardiff climate page with graphs.
Cardiff, monthly averages in December
Min Temperature
5°C
Max Temperature
10°C
Water Temperature
10°C
Chance of Rain
65%
Precipitation
119 mm
Rainy days
19 days
Humidity
89%
Windspeed
18 km/h
Sunshine
49 hours
Percentage Sunshine
19%
Where to go in the United Kingdom in December
Find out more about the weather in the United Kingdom in December and which places have the best weather conditions in this month.
perfect weather
pleasant
tolerable
unpleasant
poor
So, what should you wear in Cardiff in December?
Wear a base layer in cold weather; this is the #1 thing you can do to increase your overall body temperature. With a water temperature of around 10°C there is no need to bring your swimwear.What To Do
We rated the following activities from 1 (least suitable) to 10 (best) to do in December.
Interested in more climate information?
Weather and Climate provides you with all the information you need about the climate in Cardiff.
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 climate conditions. Find out where to go with our weather planner.
