Average water temperature in Cardiff

The mean water temperature over the year in Cardiff (Wales), the United Kingdom.

On average, August has the warmest water temperature with 16°C.
On average, March has the coldest water temperature with 7°C.

Forecast for Cardiff

Tue Dec 03

9°C | 2°C

11 km/h

partly cloudy and no rain

hourly forecast

Wed Dec 04

11°C | 4°C

22 km/h

12 mm

overcast and chance of rain

hourly forecast

Thu Dec 05

13°C | 8°C

36 km/h

13 mm

overcast and heavy rain

hourly 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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