Glamorgan Weather in August

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

Planning a getaway to Glamorgan, the United Kingdom this August and curious about the weather you should prepare for? Discover all the vital details you need on this page, solving your puzzle:

What to Expect in Glamorgan in August

Glamorgan, the United Kingdom is a region in the United Kingdom. August in Glamorgan generally has pleasant temperatures, with precipitation levels ranging from moderate to high. It's the height of summer.

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 Glamorgan, the United Kingdom.

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

Precipitation

In August, precipitation varies across different areas. From moderate rainfall in Penarth with an average of 91 mm (3.6 in) to high rainfall in Crynant with 119 mm (4.7 in).

Average sunshine

Sunshine levels are moderate in most locations. Cardiff typically sees 184 hours of sunlight, creating comfortable conditions that aren't too bright or too dim. Looking for something sunnier? Our weather planner helps you discover destinations with more reliable sunshine.

Explore Glamorgan by month

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

Best Places to Visit in Glamorgan in August

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

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 Glamorgan

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

Temperature range in Glamorgan (August)

Precipitation variation in Glamorgan (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

Merthyr Tydfil

In August Merthyr Tydfil generally has pleasant temperatures with maximum daytime temperatures around 20°C (68°F), minimum nighttime temperatures around 12°C (54°F) and moderate 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
12°C (54°F)
12°C (54°F)
10°C (50°F)
Monthly sun hours
202 hours
184 hours
149 hours
Monthly rainfall
94 mm (3.7 in)
100 mm (3.9 in)
89 mm (3.5 in)
Monthly rainy days
14 days
16 days
17 days
Weather conditions

Bridgend

In August Bridgend 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 pleasant 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
88 mm (3.5 in)
100 mm (3.9 in)
92 mm (3.6 in)
Monthly rainy days
14 days
16 days
16 days
Weather conditions

The Mumbles

In August The Mumbles 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
19°C (66°F)
20°C (68°F)
18°C (64°F)
Min temperature
14°C (57°F)
14°C (57°F)
13°C (55°F)
Monthly sun hours
202 hours
184 hours
149 hours
Monthly rainfall
96 mm (3.8 in)
110 mm (4.3 in)
106 mm (4.2 in)
Monthly rainy days
13 days
16 days
16 days
Weather conditions

Barry

In August Barry 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)
19°C (66°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
83 mm (3.3 in)
96 mm (3.8 in)
87 mm (3.4 in)
Monthly rainy days
13 days
15 days
15 days
Weather conditions

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

Popular cities in August

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

City Weather Day temp Night temp Rainfall
Cardiff 20°C (68°F) 14°C (57°F) 98 mm (3.9 in)
Merthyr Tydfil 20°C (68°F) 12°C (54°F) 100 mm (3.9 in)
Bridgend 20°C (68°F) 14°C (57°F) 100 mm (3.9 in)
The Mumbles 20°C (68°F) 14°C (57°F) 110 mm (4.3 in)
Barry 20°C (68°F) 14°C (57°F) 96 mm (3.8 in)
Cowbridge 20°C (68°F) 14°C (57°F) 99 mm (3.9 in)

Glamorgan weather in August: frequently asked questions

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

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

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

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

We believe that August is one of the best times to visit Glamorgan, 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. The weather in January, February, November and December, on the other hand, tends to be poor.

Interested in more climate information?

We have much more information about the climate in Glamorgan.

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.

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