Wales Weather in August

Average temperatures, rainfall, sunshine and the best places to visit in Wales, the United Kingdom in August.

Are you planning a trip a to Wales, the United Kingdom in August and wondering what kind of weather to expect? This page has all the details you need.

What to Expect in Wales in August

Wales, the United Kingdom is a region in the United Kingdom. August in Wales generally has pleasant temperatures, with precipitation levels ranging from moderate to high. August is a summer month.

Temperatures

You can expect pleasant maximum daytime temperatures of around 20°C (68°F) and nighttime temperatures around 14°C (57°F) in Cardiff. On average, August is the month with the highest temperature of the year in Wales, the United Kingdom.

For a closer look at conditions across Wales, the United Kingdom, refer to the map below.

Precipitation

In August, precipitation varies across different areas. From moderate rainfall in Cardiff with an average of 98 mm (3.9 in) to high rainfall in Swansea with 109 mm (4.3 in).

Average sunshine

Sunshine is fairly consistent across many areas. Cardiff receives about 184 hours of sunlight in August, providing a good balance between sunny spells and cloud cover. If you're after more sunshine hours, take a look at our weather planner for other sun-rich destinations worldwide.

Explore Wales by month

Pick a month to see the average temperature, rainfall and sunshine in Wales — and find the best time to visit. (based on Cardiff)

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.

perfect weather
pleasant
tolerable
unpleasant
poor

Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).

Popular Destinations in Wales

What is the weather like in August for some of the most popular destinations in Wales, the United Kingdom?

Temperature range in Wales (August)

Precipitation variation in Wales (August)

Cardiff

In August Cardiff generally has pleasant temperatures with maximum daytime temperatures around 20°C (68°F), minimum nighttime temperatures around 14°C (57°F) and moderate monthly rainfall. So on average the conditions are perfect that month.

July
August
September
Max temperature
20°C (68°F)
20°C (68°F)
18°C (64°F)
Min temperature
14°C (57°F)
14°C (57°F)
12°C (54°F)
Monthly sun hours
202 hours
184 hours
149 hours
Monthly rainfall
85 mm (3.3 in)
98 mm (3.9 in)
90 mm (3.5 in)
Monthly rainy days
13 days
15 days
16 days
Weather conditions

Swansea

In August Swansea generally has pleasant temperatures with maximum daytime temperatures around 20°C (68°F), minimum nighttime temperatures around 14°C (57°F) and high monthly rainfall. So on average the conditions are pleasant that month.

July
August
September
Max temperature
20°C (68°F)
20°C (68°F)
18°C (64°F)
Min temperature
13°C (55°F)
14°C (57°F)
12°C (54°F)
Monthly sun hours
202 hours
184 hours
149 hours
Monthly rainfall
98 mm (3.9 in)
109 mm (4.3 in)
103 mm (4.1 in)
Monthly rainy days
13 days
16 days
16 days
Weather conditions

Is your destination not in the list? Have a look at all destinations in Wales, in the United Kingdom.

Popular cities in August

Day & night temperatures, rainfall and average weather in Wales in August.

City Weather Day temp Night temp Rainfall
Cardiff 20°C (68°F) 14°C (57°F) 98 mm (3.9 in)
Swansea 20°C (68°F) 14°C (57°F) 109 mm (4.3 in)

Wales weather in August: frequently asked questions

What is the weather like in Wales, the United Kingdom in August?

Wales, the United Kingdom typically experiences perfect weather in August, part of the summer season. Daytime highs in Cardiff average around 20°C (68°F), and temperatures drop to about 14°C (57°F) at night.

What is the average temperature in Wales, the United Kingdom in August?

Cardiff averages a daytime maximum of 20°C (68°F) in August, with overnight lows close to 14°C (57°F).

Does Wales, the United Kingdom get a lot of rain in August?

August is on the drier side in Wales, the United Kingdom. Cardiff averages only about 98 mm (3.9 in), with most days staying dry.

Is August a Good Time to Visit Wales, the United Kingdom?

We believe that August is one of the best times to visit Wales, the United Kingdom with overall perfect weather in Cardiff. It's worth noting that weather conditions might differ depending on the location you visit.

Generally speaking, July and August provide perfect weather in Cardiff. In contrast, January, February, November and December tend to have poor weather conditions.

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.