United KingdomCountries United Kingdom Wales Cardiff Water Temperatures
United KingdomUnited Kingdom Wales Cardiff
Cardiff (GB)
Average water temperature
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Average monthly water temperature in Cardiff, the United Kingdom

On this page you find the mean water temperature over the year in Cardiff (Wales), the United Kingdom. Discover when the water is at its warmest and coolest, perfect for planning your visit.

In Cardiff, cooler water temperatures are a year-round feature. The warmest month is August, averaging 16°C.

The coldest month, March, sees averages of 7°C. This does not make it a great month for visitors who enjoy swimming.


Forecast for Cardiff

Thursday
10 Jul
Fair
Fair
21°C
0 mm
10 day forecast
Friday
11 Jul
Clear skies
Clear skies
23°C
0 mm
10 day forecast
Saturday
12 Jul
Clear skies
Clear skies
25°C
0 mm
10 day forecast
5-Day Forecast 10-Day Forecast

Interested in more climate information?

This site 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 travel conditions. Find out where to go with our weather planner.

 

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