Temperature in Wales in August

Daytime highs, nighttime lows and the warmest cities in Wales, the United Kingdom this August.

Wales, the United Kingdom, a region in the United Kingdom, typically experiences pleasant weather in August, with maximum daytime temperatures around 20°C (68°F) and nighttime temperatures around 14°C (57°F) in Cardiff. In August, it is summer. On average, August is the month with the highest temperature of the year in Wales, the United Kingdom.

What is the temperature of the different cities in Wales, the United Kingdom in August?

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

Select a Month

Check the conditions for any month of the year.

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

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

See also: Wales weather by month.

Best Places to Visit in Wales in August

Click on a destination dot for more details. Toggle the map to compare temperatures or precipitation across Wales.

Conditions Temperatures Precipitation
Avg daytime high -5°C (23°F) cold → 32°C (90°F) hot

Marker color shows the average daytime high temperature in August: blue is cold, red is hot.

See all August weather averages, cities and regions in Wales

Wales temperatures in August: frequently asked questions

How hot does it get in Wales, the United Kingdom in August?

Cardiff averages a daytime high of 20°C (68°F) in August, which is pleasant for Wales, the United Kingdom.

How cold does it get at night in Wales, the United Kingdom in August?

Average overnight lows in Wales, the United Kingdom during August sit near 14°C (57°F) in Cardiff.

How much sun does Wales, the United Kingdom get in August?

Cardiff enjoys a balanced 184 hours of sunlight. This makes it neither too overcast nor too sunny.

What is the water temperature in August?

The water temperature averages approximately 16°C (61°F) in Cardiff this month, generally too cold for comfortable swimming.

Interested in more climate information?

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.

Bucket list

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.
Must visit in the United Kingdom →