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Cardiff weather in January (Wales, United Kingdom)

How is the weather in Cardiff in January? This guide provides all the details you need.

In January, Cardiff typically experiences low temperatures and high rainfall. January is a winter month. Throughout the daytime, temperatures often hover around 9°C. However, as the sun sets and evening approaches, there's a noticeable cool-down, with temperatures gently dropping to a more temperate 4°C. During this period, the city experiences its coolest temperatures annually.

Cardiff in January usually receives high rainfall, averaging around 105 mm for the month. Rain is expected on roughly 20 days.

The area experiences limited sunny days, amounting to roughly 53 hours of sunshine. This makes it perfect for those who lean towards cooler, cloudier settings rather than intense sunlit days

If you're looking for dry conditions and comfortable temperatures, January 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 January

Min TemperatureMin Temperature 4°C  
Max TemperatureMax Temperature 9°C  
Water TemperatureWater Temperature 8°C  
Chance of RainChance of Rain 68%  
PrecipitationPrecipitation 105 mm  
Rainy daysRainy days 20 days  
HumidityHumidity 89%  
WindspeedWindspeed 18 km/h  
SunshineSunshine 53 hours  
Percentage SunshinePercentage Sunshine 20%  

Where to go in the United Kingdom in January

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

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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 Cardiff in January?

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 8°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 January.

Swimming
4/10
Cycling
4/10
Walking
4/10
Camping
3/10
Outdoor sports
4/10

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.