Contents
- Weather in May
- Frequently asked questions
- Average temperature in May
- Average pressure in May
- Average wind speed in May
- Average humidity in May
- Average rainfall in May
- Average rainfall days in May
- Average snowfall in May
- Average snowfall days in May
- Average daylight in May
- Average sunshine in May
- Average sunshine days in May
- Average UV index in May
- Average cloud cover in May
- Average visibility in May
May
Weather in May
Temperature
Trefeglwys greets May with an average high-temperature of a mild 13.7°C (56.7°F), marking a slight deviation from the preceding month. Nighttime temperature lowers to an average of 5.6°C (42.1°F) in May.Humidity
The months with the lowest humidity in Trefeglwys are April and May, with an average relative humidity of 85%.Rainfall
In Trefeglwys, in May, it is raining for 16.7 days, with typically 37mm (1.46") of accumulated precipitation. Throughout the year, there are 183.4 rainfall days, and 551mm (21.69") of precipitation is accumulated.Snowfall
January through May, November and December are months with snowfall. May is the last month it regularly snows. During 0.3 snowfall days, in May, Trefeglwys aggregates 11mm (0.43") of snow. Throughout the year, there are 27.6 snowfall days, and 279mm (10.98") of snow is accumulated.Daylight
In May, the average length of the day is 15h and 47min.On the first day of the month, sunrise is at 5:41 am and sunset at 8:40 pm. On the last day of May, sunrise is at 4:57 am and sunset at 9:26 pm BST.
Sunshine
With an average of 6.4h of sunshine, May has the most sunshine of the year.UV index
The months with the highest UV index are May, June and August, with an average maximum UV index of 4. A UV Index of 3 to 5 symbolizes a medium vulnerability from unprotected exposure to Sun's UV rays for the average person.Note: In May, the maximum UV index of 4 suggests these recommendations:
Take care. Persons with lighter skin might suffer burns in less than 30 minutes. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. Sunglasses that ward off UVA and UVB rays play a pivotal role in reducing solar eye damage. Forewarned is forearmed! The Sun's UV radiation can be almost doubled in intensity by snow reflection.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the temperatures in Trefeglwys in May?
What are the least humid months in Trefeglwys?
What is the average humidity in May in Trefeglwys?
How many days does it rain in May in Trefeglwys?
What is the last month it snows in Trefeglwys?
How many hours of daylight does Trefeglwys have in May?
What time are sunrise and sunset in May in Trefeglwys?
What month has the most sunshine in Trefeglwys?
How long on average sun shines in May in Trefeglwys?
What is the month with the highest UV index in Trefeglwys?
What is the UV index reading in May in Trefeglwys?
Average temperature in May
Trefeglwys, United Kingdom
- Average high temperature in May: 13.7°C
The warmest month (with the highest average high temperature) is July (17.7°C).
The month with the lowest average high temperature is January (5.3°C).
- Average low temperature in May: 5.6°C
The month with the highest average low temperature is August (10.2°C).
The coldest months (with the lowest average low temperature) are January and February (0.8°C).
Average pressure in May
Trefeglwys, United Kingdom
- Average pressure in May: 1016.4mbar
The month with the highest atmospheric pressure is May (1016.4mbar).
The month with the lowest atmospheric pressure is November (1009.5mbar).
Average wind speed in May
Trefeglwys, United Kingdom
- Average wind speed in May: 14km/h
The windiest month (with the highest average wind speed) is February (18.9km/h).
The calmest month (with the lowest average wind speed) is June (12.6km/h).
Average humidity in May
Trefeglwys, United Kingdom
- Average humidity in May: 85%
The months with the highest relative humidity are November and December (92%).
The months with the lowest relative humidity are April and May (85%).
Average rainfall in May
Trefeglwys, United Kingdom
- Average rainfall in May: 37mm
The wettest month (with the highest rainfall) is June (68mm).
The driest month (with the least rainfall) is September (34mm).
Average rainfall days in May
Trefeglwys, United Kingdom
- Average rainfall days in May: 16.7 days
The month with the highest number of rainy days is July (18.7 days).
The month with the least rainy days is February (11.5 days).
Average snowfall in May
Trefeglwys, United Kingdom
- Average snowfall in May: 11mm
The month with the highest snowfall is January (67mm).
The months with the least snowfall are June, July, August, September and October (0mm).
Average snowfall days in May
Trefeglwys, United Kingdom
- Average snowfall days in May: 0.3 days
The month with the highest number of snowfall days is February (7.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in May /
Average sunshine in May
Trefeglwys, United Kingdom
- Average daylight in May: 15h and 5min
The month with the longest days is June (Average daylight: 16h and 42min).
The month with the shortest days is December (Average daylight: 7h and 48min).
- Average sunshine in May: 6h and 2min
The month with the most sunshine is May (Average sunshine: 6h and 24min).
The month with the least sunshine is November (Average sunshine: 2h and 54min).
Average sunshine days in May
Trefeglwys, United Kingdom
- Average sunshine days in May: 10.8 days
The month with the most sunshine days is September (13.4 days).
The month with the least sunshine days is July (8.4 days).
Average UV index in May
Trefeglwys, United Kingdom
- Average UV index in May: 4
The months with the highest UV index are May, June and August (UV index 4).
The months with the lowest UV index are January, February, March, April, November and December (UV index 2).
Average cloud cover in May
Trefeglwys, United Kingdom
- Average cloud cover in May: 60
The month with the most cloud cover is November (Cloud cover 72).
The months with the least cloud cover are April and May (Cloud cover 60).
Average visibility in May
Trefeglwys, United Kingdom
- Average visibility in May: 8km
The months with the highest visibility are January, February, March, April, May, June, July, November and December (8km).
The months with the lowest visibility are August, September and October (7km).
