May weather forecastGlenavy, United Kingdom
May weather for Glenavy, United Kingdom: The months with the least rainfall in Glenavy are January and May Rain falls for 10.9 days and accumulates 11mm (0.43") of rain. The months with the lowest humidity in Glenavy, United Kingdom, are April and May, with an average relative humidity of 84%.
May
Weather in May
May, the last month of the spring in Glenavy, is a mild month, with an average temperature varying between 13.4°C (56.1°F) and 6.7°C (44.1°F).Temperature
An average high-temperature of a moderate 13.4°C (56.1°F) marks May, exhibiting a close resemblance to the conditions in April. Throughout May, Glenavy witnesses a consistent average low-temperature of 6.7°C (44.1°F).Humidity
April and May, with an average relative humidity of 84%, are the least humid months in Glenavy.Rainfall
The months with the least rainfall are January and May Rain falls for 10.9 days and accumulates 11mm (0.43") of rain.Snowfall
April through November are months without snowfall in Glenavy.Daylight
The average length of the day in May is 16h and 6min.On the first day of May, sunrise is at 5:44 am and sunset at 8:59 pm. On the last day of the month, sunrise is at 4:56 am and sunset at 9:49 pm BST.
Sunshine
In Glenavy, the average sunshine in May is 6.4h.UV index
In Glenavy, the average daily maximum UV index in May is 3. A UV Index value of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV rays for the ordinary person.Note: In May, the maximum UV index of 3 suggests these recommendations:
Be cautious. Those with fair skin can be subjected to burns in fewer than 30 minutes. Avoiding direct sun during mid-day hours can prevent harmful UV radiation exposure. Wearing a wide-brim hat can block approximately 50% of UV radiation, protecting the eyes.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Glenavy, United Kingdom
- Average high temperature in May: 13.4°C
The warmest month (with the highest average high temperature) is July (17°C).
The month with the lowest average high temperature is January (6.2°C).
- Average low temperature in May: 6.7°C
The month with the highest average low temperature is August (10.8°C).
The coldest month (with the lowest average low temperature) is February (2.2°C).
Average pressure in May
Glenavy, United Kingdom
- Average pressure in May: 1015.5mbar
The month with the highest atmospheric pressure is May (1015.5mbar).
The month with the lowest atmospheric pressure is November (1007.2mbar).
Average wind speed in May
Glenavy, United Kingdom
- Average wind speed in May: 15km/h
The windiest month (with the highest average wind speed) is January (19.9km/h).
The calmest month (with the lowest average wind speed) is July (12.9km/h).
Average humidity in May
Glenavy, United Kingdom
- Average humidity in May: 84%
The months with the highest relative humidity are January and December (90%).
The months with the lowest relative humidity are April and May (84%).
Average rainfall in May
Glenavy, United Kingdom
- Average rainfall in May: 11mm
The wettest months (with the highest rainfall) are June and August (23mm).
The driest months (with the least rainfall) are January and May (11mm).
Average rainfall days in May
Glenavy, United Kingdom
- Average rainfall days in May: 10.9 days
The month with the highest number of rainy days is July (13.4 days).
The month with the least rainy days is February (9.8 days).
Average snowfall in May
Glenavy, United Kingdom
- Average snowfall in May: 0mm
The month with the highest snowfall is February (13mm).
The months with the least snowfall are April, May, June, July, August, September, October and November (0mm).
Average snowfall days in May
Glenavy, United Kingdom
- Average snowfall days in May: 0 days
The month with the highest number of snowfall days is February (3.4 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
Glenavy, United Kingdom
- Average daylight in May: 16h and 6min
The month with the longest days is June (Average daylight: 17h and 12min).
The month with the shortest days is December (Average daylight: 7h and 24min).
- Average sunshine in May: 6h and 24min
The month with the most sunshine is June (Average sunshine: 7h and 0min).
The month with the least sunshine is February (Average sunshine: 3h and 24min).
Average sunshine days in May
Glenavy, United Kingdom
- Average sunshine days in May: 16.3 days
The months with the most sunshine days are May and December (16.3 days).
The month with the least sunshine days is August (12 days).
Average UV index in May
Glenavy, United Kingdom
- Average UV index in May: 3
The months with the highest UV index are June 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
Glenavy, United Kingdom
- Average cloud cover in May: 58
The month with the most cloud cover is July (Cloud cover 65).
The month with the least cloud cover is April (Cloud cover 57).
Average visibility in May
Glenavy, United Kingdom
- Average visibility in May: 9km
The months with the highest visibility are January, February, March, April, May, September, October, November and December (9km).
The months with the lowest visibility are June, July and August (8km).





