May weather forecastLlanfechain, United Kingdom
May
Weather in May
The last month of the spring, May, is a moderate month in Llanfechain, United Kingdom, with an average temperature ranging between max 14.3°C (57.7°F) and min 5.8°C (42.4°F).Temperature
May brings a marginal elevation to a moderate 14.3°C (57.7°F) from April's 11.8°C (53.2°F) in Llanfechain's average high-temperatures. Throughout the month of May, Llanfechain observes an average nighttime temperature of 5.8°C (42.4°F).Humidity
April and May, with an average relative humidity of 84%, are the least humid months in Llanfechain.Rainfall
In Llanfechain, in May, during 16.9 rainfall days, 37mm (1.46") of precipitation is typically accumulated. In Llanfechain, United Kingdom, during the entire year, the rain falls for 190 days and collects up to 545mm (21.46") of precipitation.Snowfall
In Llanfechain, snow does not fall in May through October.Daylight
In May, the average length of the day is 15h and 49min.On the first day of May, sunrise is at 5:39 am and sunset at 8:40 pm. On the last day of the month, sunrise is at 4:54 am and sunset at 9:26 pm BST.
Sunshine
In Llanfechain, the average sunshine in May is 6.7h.UV index
The months with the highest UV index in Llanfechain are May through August, with an average maximum UV index of 4. 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: In May, the UV index of 4 transforms into the following advice:
Undertake protective steps - Obligation to safeguard skin and eyes from harm is in place. It's crucial to reduce time in the direct Sun around mid-day due to the intense solar radiation. Shield yourself from the harmful effects of UV radiation with sun-protective attire, a hat, and quality sunglasses.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Llanfechain, United Kingdom
- Average high temperature in May: 14.3°C
The warmest month (with the highest average high temperature) is July (18.6°C).
The month with the lowest average high temperature is January (5.6°C).
- Average low temperature in May: 5.8°C
The month with the highest average low temperature is August (10.6°C).
The coldest month (with the lowest average low temperature) is January (0.9°C).
Average pressure in May
Llanfechain, 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 (1009.4mbar).
Average wind speed in May
Llanfechain, United Kingdom
- Average wind speed in May: 12.9km/h
The windiest month (with the highest average wind speed) is February (17.3km/h).
The calmest month (with the lowest average wind speed) is June (11.7km/h).
Average humidity in May
Llanfechain, United Kingdom
- Average humidity in May: 84%
The months with the highest relative humidity are January, November and December (91%).
The months with the lowest relative humidity are April and May (84%).
Average rainfall in May
Llanfechain, United Kingdom
- Average rainfall in May: 37mm
The wettest month (with the highest rainfall) is June (71mm).
The driest month (with the least rainfall) is April (33mm).
Average rainfall days in May
Llanfechain, United Kingdom
- Average rainfall days in May: 16.9 days
The month with the highest number of rainy days is July (20.3 days).
The month with the least rainy days is February (12 days).
Average snowfall in May
Llanfechain, United Kingdom
- Average snowfall in May: 0mm
The month with the highest snowfall is January (27mm).
The months with the least snowfall are May, June, July, August, September and October (0mm).
Average snowfall days in May
Llanfechain, United Kingdom
- Average snowfall days in May: 0 days
The month with the highest number of snowfall days is January (3.3 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
Llanfechain, United Kingdom
- Average daylight in May: 15h and 48min
The month with the longest days is June (Average daylight: 16h and 48min).
The month with the shortest days is December (Average daylight: 7h and 42min).
- Average sunshine in May: 6h and 42min
The month with the most sunshine is July (Average sunshine: 6h and 48min).
The month with the least sunshine is November (Average sunshine: 3h and 24min).
Average sunshine days in May
Llanfechain, United Kingdom
- Average sunshine days in May: 11.5 days
The month with the most sunshine days is March (13.6 days).
The month with the least sunshine days is July (7.8 days).
Average UV index in May
Llanfechain, United Kingdom
- Average UV index in May: 4
The months with the highest UV index are May, June, July and August (UV index 4).
The months with the lowest UV index are January, February, March, November and December (UV index 2).
Average cloud cover in May
Llanfechain, United Kingdom
- Average cloud cover in May: 58
The month with the most cloud cover is November (Cloud cover 67).
The month with the least cloud cover is April (Cloud cover 57).
Average visibility in May
Llanfechain, United Kingdom
- Average visibility in May: 8km
The months with the highest visibility are January, February, March, April, May, June, July, October and December (8km).
The months with the lowest visibility are August, September and November (7km).





