Temperature in Wales in May

Wales is a region in the United Kingdom. May is generally a mild month with maximum daytime temperatures around 16°C and nighttime temperatures around 9°C in Cardiff.

What is the temperature of the different cities in Wales in May?

Explore the map below to discover average May temperatures at the top destinations in Wales. For a deeper dive, simply click on any destination dot.

Weather conditions Weather

Temperatures

Precipitation

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Legend

very warm

warm

pleasant

moderate

cold

very cold

Very warm means maximum temperatures above 30°C. Warm: 22°C to 30°C. Pleasant: 18°C to 22°C Moderate: 12°C to 18°C. Cold: 2°C to 12°C. Very cold: lower than 2°C

Select a Month of Interest

Check the weather conditions for any month in Wales.

For a detailed overview of the weather over the year and the best time to visit the United Kingdom, check out our Wales's climate page.

How much sun does Wales get in May?

The weather is predominantly sunny, with an estimated total of around 197 hours of sunshine in Cardiff. This means many sunny days, which creates a cheerful atmosphere during this month.

What is the water's temperature in May?

The water temperature averages approximately 11°C in Cardiff this month, so not the best month to swim.

Interested in more climate information?

Weather and climate has detailed information for every country in the world. Are you going to the United Kingdom? Get detailed 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.