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Glamorgan weather in May

Are you planning a trip to Glamorgan in May and wondering what kind of weather to expect? This page has all the details you need.

What is the weather like in Glamorgan in May?

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

You can expect moderate maximum daytime temperatures of around 16°C and nighttime temperatures around 9°C in Cardiff.

In May, precipitation varies across different areas. From moderate rainfall in Penarth with an average of 77 mm to high rainfall in Crynant with 103 mm. Meanwhile, Cardiff enjoys close to 197 hours of sunlight. This means it's a great month if you prefer bright and sunny days.

For a closer look at May's conditions in Glamorgan, see the map below. For a more detailed look at Glamorgan's yearly weather, check out our Glamorgan climate page.

Where to go in Glamorgan in May

Find more information for the most popular destinations in the Glamorgan on the map below. Click on a destination dot for more detailes.

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Legend perfect weather pleasant tolerable unpleasant poor
Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C and 29°C and not too much precipitation (less than 90 mm a month).

Popular destinations

What is the weather like in May for the 5 most popular destinations in Glamorgan?

Cardiff

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

Cardiff
minimum temparatureMax temperature minimum temparatureMax temp
maximum temparatureMin temperature maximum temparatureMin temp
sun hoursMonthly sun hours sun hoursSun hours
precipitationMonthly rainfall precipitationRainfall
rain daysMonthly rainy days rain daysRainy days
conditionsWeather conditions conditionsWeather
<<   April April
<<  
13°C 
6°C 
180 hours 
78 mm 
15 days 
16°C 
9°C 
197 hours 
79 mm 
15 days 
June   >> June
>>  
18°C 
12°C 
194 hours 
82 mm 
14 days 
Climate in Cardiff

Merthyr Tydfil

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

Merthyr Tydfil
minimum temparatureMax temperature minimum temparatureMax temp
maximum temparatureMin temperature maximum temparatureMin temp
sun hoursMonthly sun hours sun hoursSun hours
precipitationMonthly rainfall precipitationRainfall
rain daysMonthly rainy days rain daysRainy days
conditionsWeather conditions conditionsWeather
<<   April April
<<  
13°C 
4°C 
180 hours 
89 mm 
16 days 
16°C 
7°C 
197 hours 
96 mm 
16 days 
June   >> June
>>  
18°C 
10°C 
194 hours 
95 mm 
16 days 
Climate in Merthyr Tydfil

Bridgend

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

Bridgend
minimum temparatureMax temperature minimum temparatureMax temp
maximum temparatureMin temperature maximum temparatureMin temp
sun hoursMonthly sun hours sun hoursSun hours
precipitationMonthly rainfall precipitationRainfall
rain daysMonthly rainy days rain daysRainy days
conditionsWeather conditions conditionsWeather
<<   April April
<<  
13°C 
6°C 
180 hours 
78 mm 
15 days 
16°C 
9°C 
197 hours 
80 mm 
16 days 
June   >> June
>>  
18°C 
12°C 
194 hours 
85 mm 
15 days 
Climate in Bridgend

The Mumbles

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

The Mumbles
minimum temparatureMax temperature minimum temparatureMax temp
maximum temparatureMin temperature maximum temparatureMin temp
sun hoursMonthly sun hours sun hoursSun hours
precipitationMonthly rainfall precipitationRainfall
rain daysMonthly rainy days rain daysRainy days
conditionsWeather conditions conditionsWeather
<<   April April
<<  
13°C 
7°C 
180 hours 
81 mm 
14 days 
15°C 
9°C 
197 hours 
82 mm 
15 days 
June   >> June
>>  
18°C 
12°C 
194 hours 
92 mm 
15 days 
Climate in The Mumbles

Cowbridge

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

Cowbridge
minimum temparatureMax temperature minimum temparatureMax temp
maximum temparatureMin temperature maximum temparatureMin temp
sun hoursMonthly sun hours sun hoursSun hours
precipitationMonthly rainfall precipitationRainfall
rain daysMonthly rainy days rain daysRainy days
conditionsWeather conditions conditionsWeather
<<   April April
<<  
13°C 
6°C 
180 hours 
79 mm 
15 days 
16°C 
9°C 
197 hours 
80 mm 
15 days 
June   >> June
>>  
18°C 
12°C 
194 hours 
84 mm 
15 days 
Climate in Cowbridge

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

Is May the best time to visit Glamorgan?

Given the typically tolerable weather conditions in Cardiff, May might be a good time to visit Glamorgan. 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. Interested in the weather conditions in a specific month? Select the month below.

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  • 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 climate conditions. Find out where to go with our weather planner.