Daytime highs, nighttime lows and the warmest cities in Wales, the United Kingdom this May.
Wales, the United Kingdom, a region in the United Kingdom, typically experiences mild weather in May, with maximum daytime temperatures around 16°C (61°F) and nighttime temperatures around 9°C (48°F) in Cardiff.
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.
Check the conditions for any month of the year.
Click on a destination dot for more details. Toggle the map to compare temperatures or precipitation across Wales.
Marker color shows the average daytime high temperature in May: blue is cold, red is hot.
Daytime temperatures in Cardiff typically peak at 16°C (61°F) in May, putting it in the moderate range.
After dark, Cardiff cools to about 9°C (48°F) on an average May night.
Cardiff enjoys approximately 197 hours of sunshine, offering a mostly sunny climate that adds a pleasant and vibrant feel to the month.
The water temperature averages approximately 11°C (52°F) in Cardiff this month, generally too cold for comfortable swimming.
We have much more information about the climate in Wales.
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.
Need travel inspiration? Check out our bucket list articles and be inspired.
Hike the South West Coast Path
The South West Coast Path means breathtaking nature, kind people and delicious food everywhere you go. It is an unforgettable experience and you need to add it to your bucket list.
Welcome to Totnes, the hidden treasure of South Devon
Totnes is a place where historical richness fuses effortlessly with a vibrant alternative culture and breathtaking natural surroundings. The town pulses with an amazing community spirit that you'll feel around every corner.
London's coolest neighborhoods you'll want to visit
Discover the 6 coolest neighborhoods in London for your trip! Explore vibrant Shoreditch, lively Soho, alternative Camden, and many more.
10 cities you should definitely visit in the UK
Discover the top 10 most fun and alternative cities in the UK, rich in art, culture, and adventure. Explore vibrant neighborhoods and unique places.