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
May registers an average high-temperature of a mild 13.3°C (55.9°F), slightly varied from April's 11.3°C (52.3°F). A consistent average low of 9.5°C (49.1°F) is noted in Efailwen throughout May, only a small step down from its daytime high.Humidity
The average relative humidity in May in Efailwen, United Kingdom, is 82%.Rainfall
May is the month with the least rainfall. Rain falls for 13.9 days and accumulates 23mm (0.91") of precipitation.Snowfall
April through October are months without snowfall.Daylight
In Efailwen, the average length of the day in May is 15h and 41min.On the first day of May in Efailwen, sunrise is at 5:48 am and sunset at 8:43 pm. On the last day of the month, sunrise is at 5:05 am and sunset at 9:27 pm BST.
Sunshine
The month with the most sunshine in Efailwen is May, with an average of 8.4h of sunshine.UV index
May through September, with an average maximum UV index of 4, are months with the highest UV index in Efailwen. A UV Index estimate of 3 to 5 represents a medium vulnerability from unsafe exposure to UV radiation for the ordinary person.Note: The UV index of 4 during May translates into the following guidance:
Guard yourself - An obligation to protect skin and eyes from harm exists. Avoid the Sun's strongest UV rays by seeking shade and limiting exposure during midday. Arm yourself against UV rays' harm with protective apparel and UV-filtering shades.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the usual temperature for Efailwen in May?
What is the average humidity in May in Efailwen?
What is the driest month in Efailwen?
How much does it rain in Efailwen in May?
When it does not snow in Efailwen?
How many hours of daylight does Efailwen have in May?
When are sunrise and sunset in May in Efailwen?
What month has the most sunshine in Efailwen?
How long on average sun shines in May in Efailwen?
What is the month with the highest UV index in Efailwen?
What is the UV index reading in May in Efailwen?
Average temperature in May
Efailwen, United Kingdom
- Average high temperature in May: 13.3°C
The warmest month (with the highest average high temperature) is August (17.2°C).
The month with the lowest average high temperature is February (8.3°C).
- Average low temperature in May: 9.5°C
The month with the highest average low temperature is August (14.6°C).
The coldest month (with the lowest average low temperature) is February (5.6°C).
Average pressure in May
Efailwen, United Kingdom
- Average pressure in May: 1016.6mbar
The months with the highest atmospheric pressure are May and September (1016.6mbar).
The month with the lowest atmospheric pressure is November (1009.5mbar).
Average wind speed in May
Efailwen, United Kingdom
- Average wind speed in May: 18.5km/h
The windiest month (with the highest average wind speed) is December (29.1km/h).
The calmest month (with the lowest average wind speed) is June (17.9km/h).
Average humidity in May
Efailwen, United Kingdom
- Average humidity in May: 82%
The months with the highest relative humidity are July and August (84%).
The months with the lowest relative humidity are February, March, April, November and December (81%).
Average rainfall in May
Efailwen, United Kingdom
- Average rainfall in May: 23mm
The wettest month (with the highest rainfall) is November (77mm).
The driest month (with the least rainfall) is May (23mm).
Average rainfall days in May
Efailwen, United Kingdom
- Average rainfall days in May: 13.9 days
The month with the highest number of rainy days is November (21.9 days).
The month with the least rainy days is May (13.9 days).
Average snowfall in May
Efailwen, United Kingdom
- Average snowfall in May: 0mm
The month with the highest snowfall is January (8mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).
Average snowfall days in May
Efailwen, United Kingdom
- Average snowfall days in May: 0 days
The month with the highest number of snowfall days is February (1 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).
Average daylight in May /
Average sunshine in May
Efailwen, United Kingdom
- Average daylight in May: 15h and 4min
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 2min
The month with the most sunshine is May (Average sunshine: 8h and 24min).
The months with the least sunshine are January, November and December (Average sunshine: 3h and 42min).
Average sunshine days in May
Efailwen, United Kingdom
- Average sunshine days in May: 14.2 days
The month with the most sunshine days is May (14.2 days).
The month with the least sunshine days is November (5.5 days).
Average UV index in May
Efailwen, 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 and February (UV index 2).
Average cloud cover in May
Efailwen, United Kingdom
- Average cloud cover in May: 46
The months with the most cloud cover are November and December (Cloud cover 64).
The month with the least cloud cover is May (Cloud cover 46).
Average visibility in May
Efailwen, United Kingdom
- Average visibility in May: 10km
The months with the highest visibility are February, March, April, May, June, July, August, September, October, November and December (10km).
The month with the lowest visibility is January (9km).
