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WalesThe weather in May in Vale of Glamorgan
It's cool to moderate in May in Vale of Glamorgan with an average temperature of 17°C. Temperatures this month range from a low of 13°C to a high of 20°C. At night, you can expect temperatures between 7°C and 12°C.
Looking for sun and warm weather? May isn’t a good month to be in Vale of Glamorgan. The temperatures are too low for a warm stay this month.
Average temperatures and precipitation
This chart shows the average daily maximum and minimum temperatures (in degrees Celsius) and precipitation (in millimeters) in May for Vale of Glamorgan, Wales. A low precipitation value usually indicates little to no rainfall on that day in recent years, while a higher value suggests more frequent rainfall.
Temperature records
With 25°C in 2017, Vale of Glamorgan reached the highest temperature in May over the past 10 years. The lowest daytime temperature in this month was 10°C in 2021. The extreme nighttime temperatures ranged from a lowest recorded value of 2°C to a highest value of 15°C.
Rainfall amount
In May, there is an average of 62 mm of precipitation, spread over 9 days. The wind speed is around 4 Bft, mostly coming from the South.
Daily weather in May for Vale of Glamorgan
Click on any day in May to get detailed info about the usual weather on that day in Vale of Glamorgan. Check out the historical temperatures and precipitation over the past 10 years on this day.
May weather comparison
| Vale of Glamorgan | New York | |
|---|---|---|
| Average temperature | 17°C | 22°C |
| Max. temperature | 20°C | 28°C |
| Min. temperature | 7°C | -5°C |
| Total precipitation | 62 mm | 105 mm |
| Rainy days | 9 days | 14 days |
Start of May
The month of May starts in Vale of Glamorgan with cool temps, averaging around 16°C during the day and nights around 9°C.
Mid May
By mid-May, daytime temps rise to around 17°C, with nights around 10°C. There’s a chance of some showers during this time, but plenty of dry and sunny days too.
End of May
By the end of May, the average daytime temperature in Vale of Glamorgan is around 18°C, while nighttime temps are about 11°C. A shower might pop up, but overall, the weather will be dry and sunny.
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UV index
The UV index is a maximum of 8 this month. That's a very high value on the intensity scale of 1 to 11. Unprotected skin can burn within 10-15 minutes.
Check out the climate of Vale of Glamorgan for all months and discover the best travel time
Temperature charts
These charts show the average temperatures in May in Vale of Glamorgan, Wales. The temperatures are shown in degrees Celsius and are calculated based on data from the past 10 years.
Daily Temperature in May in Vale of Glamorgan
Temperature in May in Vale of Glamorgan over the years
Precipitation charts
These charts show the average amount of precipitation in May in Vale of Glamorgan, Wales. Precipitation is always measured as water, even when it falls as snow or hail The amount of precipitation is displayed in millimeters, while snowfall is shown in centimeters.
Daily Precipitation in May in Vale of Glamorgan
Total precipitation in May in Vale of Glamorgan over the years
Daily UV index in May in Vale of Glamorgan
This chart shows the average daily UV index in May in Vale of Glamorgan, with the UV index ranging from 0 to a maximum of 11. The bottom of the chart shows the days of the month. Based on historical data, this chart provides an idea of the daily UV radiation levels you can expect.
Weather experiences in May in Vale of Glamorgan
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Average weather in Vale of Glamorgan by month
Click on a month below to see detailed weather info for Vale of Glamorgan. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.