May weather forecastCefneithin, United Kingdom
May
Weather in May
The last month of the spring, May, is a mild month in Cefneithin, United Kingdom, with an average temperature ranging between min 8.7°C (47.7°F) and max 13.9°C (57°F).Temperature
As April transitions into May, Cefneithin records an average high-temperature of a refreshing 13.9°C (57°F), showing a gentle shift from the preceding month. In May, Cefneithin's temperature tends to fall to an average low of 8.7°C (47.7°F) during the night.Humidity
In May, the average relative humidity in Cefneithin is 82%.Rainfall
May is the month with the least rainfall in Cefneithin. Rain falls for 15.9 days and accumulates 37mm (1.46") of precipitation.Snowfall
April through November are months without snowfall.Daylight
In May, the average length of the day in Cefneithin is 15h and 41min.On the first day of the month, sunrise is at 5:45 am and sunset at 8:41 pm. On the last day of May, sunrise is at 5:03 am and sunset at 9:24 pm BST.
Sunshine
The months with the most sunshine are April and May, with an average of 8.2h of sunshine.UV index
May through September, with an average maximum UV index of 4, are months with the highest UV index in Cefneithin. A UV Index estimate of 3 to 5 represents a moderate health risk from exposure to the Sun's UV rays for the ordinary person.Note: The average daily UV index of 4 in May transforms into the following instructions:
Be mindful. Individuals with a lighter skin tone may suffer burns in less than 30 minutes. Avoiding direct sunlight during midday hours helps reduce the risk from intense UV radiation. For optimum UV protection, wear sun-resistant attire complemented with a hat and quality shades.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Cefneithin, United Kingdom
- Average high temperature in May: 13.9°C
The warmest month (with the highest average high temperature) is July (17.8°C).
The month with the lowest average high temperature is February (7.7°C).
- Average low temperature in May: 8.7°C
The month with the highest average low temperature is August (13.6°C).
The coldest month (with the lowest average low temperature) is February (4.5°C).
Average pressure in May
Cefneithin, United Kingdom
- Average pressure in May: 1016.7mbar
The month with the highest atmospheric pressure is May (1016.7mbar).
The month with the lowest atmospheric pressure is November (1009.7mbar).
Average wind speed in May
Cefneithin, United Kingdom
- Average wind speed in May: 16.2km/h
The windiest month (with the highest average wind speed) is December (23.9km/h).
The calmest month (with the lowest average wind speed) is June (15.4km/h).
Average humidity in May
Cefneithin, United Kingdom
- Average humidity in May: 82%
The months with the highest relative humidity are January, August, October, November and December (85%).
The month with the lowest relative humidity is April (81%).
Average rainfall in May
Cefneithin, United Kingdom
- Average rainfall in May: 37mm
The wettest month (with the highest rainfall) is December (84mm).
The driest month (with the least rainfall) is May (37mm).
Average rainfall days in May
Cefneithin, United Kingdom
- Average rainfall days in May: 15.9 days
The month with the highest number of rainy days is December (21.5 days).
The month with the least rainy days is April (15.1 days).
Average snowfall in May
Cefneithin, United Kingdom
- Average snowfall in May: 0mm
The month with the highest snowfall is December (8mm).
The months with the least snowfall are April, May, June, July, August, September, October and November (0mm).
Average snowfall days in May
Cefneithin, United Kingdom
- Average snowfall days in May: 0 days
The month with the highest number of snowfall days is January (1.3 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in May /
Average sunshine in May
Cefneithin, United Kingdom
- Average daylight in May: 15h and 42min
The month with the longest days is June (Average daylight: 16h and 36min).
The month with the shortest days is December (Average daylight: 7h and 54min).
- Average sunshine in May: 8h and 12min
The months with the most sunshine are April and May (Average sunshine: 8h and 12min).
The month with the least sunshine is January (Average sunshine: 3h and 42min).
Average sunshine days in May
Cefneithin, United Kingdom
- Average sunshine days in May: 12.8 days
The month with the most sunshine days is May (12.8 days).
The month with the least sunshine days is August (6.5 days).
Average UV index in May
Cefneithin, United Kingdom
- Average UV index in May: 4
The months with the highest UV index are May, June, July, August and September (UV index 4).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in May
Cefneithin, United Kingdom
- Average cloud cover in May: 46
The month with the most cloud cover is December (Cloud cover 63).
The months with the least cloud cover are April and May (Cloud cover 46).
Average visibility in May
Cefneithin, United Kingdom
- Average visibility in May: 9km
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (9km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (9km).





