Glamorgan Weather in May

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

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Cardiff Merthyr Tydfil Bridgend The Mumbles

Considering a trip to Glamorgan, the United Kingdom this May and wondering about the expected weather conditions? Find all the crucial information you need right here, addressing your question:

What to Expect in Glamorgan in May

Glamorgan, the United Kingdom is a region in the United Kingdom. May in Glamorgan generally has mild temperatures, with precipitation levels ranging from moderate to high.

Temperatures

You can expect mild maximum daytime temperatures of around 16°C (61°F) and nighttime temperatures around 9°C (48°F) in Cardiff.

For specific regional insights in Glamorgan, the United Kingdom, refer to the map provided below.

Precipitation

In May, precipitation varies across different areas. From moderate rainfall in Penarth with an average of 77 mm (3 in) to high rainfall in Crynant with 103 mm (4.1 in).

Average sunshine

Sunshine is generally plentiful throughout many areas. Cardiff enjoys about 197 hours of sunlight, ideal for those seeking sunny weather.

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)

January9°C (48°F) February9°C (48°F) March11°C (52°F) April13°C (55°F) May16°C (61°F) June18°C (64°F) This monthJuly20°C (68°F) August20°C (68°F) September18°C (64°F) October15°C (59°F) November12°C (54°F) December10°C (50°F)
Best Time to Visit Glamorgan →

Best Places to Visit in Glamorgan in May

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

Conditions Temperatures Precipitation
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 May for some of the most popular destinations in Glamorgan, the United Kingdom?

Temperature range in Glamorgan (May)

Precipitation variation in Glamorgan (May)

Cardiff

In May Cardiff generally has moderate temperatures with maximum daytime temperatures around 16°C (61°F), minimum nighttime temperatures around 9°C (48°F) and moderate monthly rainfall. So on average the conditions are tolerable that month.

« April
May
June »
April
May
June
Max temperature
13°C (55°F)
16°C (61°F)
18°C (64°F)
Min temperature
6°C (43°F)
9°C (48°F)
12°C (54°F)
Monthly sun hours
180 hours
197 hours
194 hours
Monthly rainfall
78 mm (3.1 in)
79 mm (3.1 in)
82 mm (3.2 in)
Monthly rainy days
15 days
15 days
14 days
Weather conditions
unpleasant
tolerable
pleasant
Climate in Cardiff →

Merthyr Tydfil

In May Merthyr Tydfil generally has moderate temperatures with maximum daytime temperatures around 16°C (61°F), minimum nighttime temperatures around 7°C (45°F) and moderate monthly rainfall. So on average the conditions are tolerable that month.

« April
May
June »
April
May
June
Max temperature
13°C (55°F)
16°C (61°F)
18°C (64°F)
Min temperature
4°C (39°F)
7°C (45°F)
10°C (50°F)
Monthly sun hours
180 hours
197 hours
194 hours
Monthly rainfall
89 mm (3.5 in)
96 mm (3.8 in)
95 mm (3.7 in)
Monthly rainy days
16 days
16 days
16 days
Weather conditions
unpleasant
tolerable
pleasant
Climate in Merthyr Tydfil →

Bridgend

In May Bridgend generally has moderate temperatures with maximum daytime temperatures around 16°C (61°F), minimum nighttime temperatures around 9°C (48°F) and moderate monthly rainfall. So on average the conditions are tolerable that month.

« April
May
June »
April
May
June
Max temperature
13°C (55°F)
16°C (61°F)
18°C (64°F)
Min temperature
6°C (43°F)
9°C (48°F)
12°C (54°F)
Monthly sun hours
180 hours
197 hours
194 hours
Monthly rainfall
78 mm (3.1 in)
80 mm (3.1 in)
85 mm (3.3 in)
Monthly rainy days
15 days
16 days
15 days
Weather conditions
unpleasant
tolerable
pleasant
Climate in Bridgend →

The Mumbles

In May The Mumbles generally has moderate temperatures with maximum daytime temperatures around 15°C (59°F), minimum nighttime temperatures around 9°C (48°F) and moderate monthly rainfall. So on average the conditions are tolerable that month.

« April
May
June »
April
May
June
Max temperature
13°C (55°F)
15°C (59°F)
18°C (64°F)
Min temperature
7°C (45°F)
9°C (48°F)
12°C (54°F)
Monthly sun hours
180 hours
197 hours
194 hours
Monthly rainfall
81 mm (3.2 in)
82 mm (3.2 in)
92 mm (3.6 in)
Monthly rainy days
14 days
15 days
15 days
Weather conditions
unpleasant
tolerable
pleasant
Climate in The Mumbles →

Barry

In May Barry generally has moderate temperatures with maximum daytime temperatures around 16°C (61°F), minimum nighttime temperatures around 9°C (48°F) and moderate monthly rainfall. So on average the conditions are tolerable that month.

« April
May
June »
April
May
June
Max temperature
13°C (55°F)
16°C (61°F)
18°C (64°F)
Min temperature
6°C (43°F)
9°C (48°F)
12°C (54°F)
Monthly sun hours
180 hours
197 hours
194 hours
Monthly rainfall
78 mm (3.1 in)
79 mm (3.1 in)
81 mm (3.2 in)
Monthly rainy days
15 days
15 days
14 days
Weather conditions
unpleasant
tolerable
pleasant
Climate in Barry →

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

Popular cities in May

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

City Weather Day temp Night temp Rainfall
Cardiff 16°C (61°F) 9°C (48°F) 79 mm (3.1 in)
Merthyr Tydfil 16°C (61°F) 7°C (45°F) 96 mm (3.8 in)
Bridgend 16°C (61°F) 9°C (48°F) 80 mm (3.1 in)
The Mumbles 15°C (59°F) 9°C (48°F) 82 mm (3.2 in)
Barry 16°C (61°F) 9°C (48°F) 79 mm (3.1 in)
Cowbridge 16°C (61°F) 9°C (48°F) 80 mm (3.1 in)

Glamorgan weather in May: frequently asked questions

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

May in Glamorgan, the United Kingdom brings tolerable weather. In Cardiff, daytime temperatures are typically around 16°C (61°F) and nighttime lows hover near 9°C (48°F).

What is the average temperature in Glamorgan, the United Kingdom in May?

Average temperatures in Glamorgan, the United Kingdom during May range from a nighttime low near 9°C (48°F) to a daytime high around 16°C (61°F) in Cardiff.

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

Rain is generally moderate to light in Glamorgan, the United Kingdom during May, with Cardiff averaging close to 79 mm (3.1 in).

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

Given the typically tolerable weather conditions in Cardiff, May might be a good time to visit Glamorgan, the United Kingdom. However, the weather conditions may vary depending on your destination.

Generally speaking, the best visiting conditions can be found in July and August offering mostly 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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