May weather forecastAlloway, United Kingdom
May
Weather in May
The last month of the spring, May, is another cool month in Alloway, United Kingdom, with temperature in the range of an average high of 12.4°C (54.3°F) and an average low of 7.1°C (44.8°F).Temperature
May commences with an average high-temperature of a still fresh 12.4°C (54.3°F), showing little deviation from April's 10.3°C (50.5°F). An average low-temperature of 7.1°C (44.8°F) is observed during the May nights.Humidity
The average relative humidity in May is 83%.Rainfall
In May, the rain falls for 16.8 days. Throughout May, 32mm (1.26") of precipitation is accumulated. In Alloway, during the entire year, the rain falls for 228.1 days and collects up to 634mm (24.96") of precipitation.Snowfall
May through November are months without snowfall.Daylight
The average length of the day in May is 16h and 15min.On the first day of May, sunrise is at 5:35 am and sunset at 8:56 pm. On the last day of the month, sunrise is at 4:44 am and sunset at 9:48 pm BST.
Sunshine
In May, the average sunshine is 7.3h.UV index
May through September, with an average maximum UV index of 4, are months with the highest UV index. A UV Index reading of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV radiation for the average person.Note: In May, the average maximum UV index of 4 translates into the following recommendations:
Ensure safety - Sun damage prevention is strongly urged. Around midday, solar radiation is most harmful; hence, exposure should be limited. During bright days, sunglasses that offer UVA and UVB defense are recommended.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Alloway, United Kingdom
- Average high temperature in May: 12.4°C
The warmest month (with the highest average high temperature) is July (16.1°C).
The month with the lowest average high temperature is January (6°C).
- Average low temperature in May: 7.1°C
The month with the highest average low temperature is August (11.4°C).
The coldest month (with the lowest average low temperature) is February (3.1°C).
Average pressure in May
Alloway, United Kingdom
- Average pressure in May: 1015.4mbar
The month with the highest atmospheric pressure is May (1015.4mbar).
The month with the lowest atmospheric pressure is November (1007mbar).
Average wind speed in May
Alloway, United Kingdom
- Average wind speed in May: 18.2km/h
The windiest month (with the highest average wind speed) is January (25.6km/h).
The calmest months (with the lowest average wind speed) are June and July (15.3km/h).
Average humidity in May
Alloway, United Kingdom
- Average humidity in May: 83%
The month with the highest relative humidity is August (87%).
The month with the lowest relative humidity is April (82%).
Average rainfall in May
Alloway, United Kingdom
- Average rainfall in May: 32mm
The wettest month (with the highest rainfall) is December (71mm).
The driest month (with the least rainfall) is April (27mm).
Average rainfall days in May
Alloway, United Kingdom
- Average rainfall days in May: 16.8 days
The month with the highest number of rainy days is August (22.2 days).
The month with the least rainy days is April (15.4 days).
Average snowfall in May
Alloway, United Kingdom
- Average snowfall in May: 0mm
The month with the highest snowfall is January (22mm).
The months with the least snowfall are May, June, July, August, September, October and November (0mm).
Average snowfall days in May
Alloway, United Kingdom
- Average snowfall days in May: 0 days
The month with the highest number of snowfall days is February (2.4 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
Alloway, United Kingdom
- Average daylight in May: 16h and 12min
The month with the longest days is June (Average daylight: 17h and 24min).
The month with the shortest days is December (Average daylight: 7h and 12min).
- Average sunshine in May: 7h and 18min
The month with the most sunshine is June (Average sunshine: 7h and 48min).
The months with the least sunshine are January and February (Average sunshine: 3h and 42min).
Average sunshine days in May
Alloway, United Kingdom
- Average sunshine days in May: 11.5 days
The month with the most sunshine days is April (12 days).
The month with the least sunshine days is August (5.8 days).
Average UV index in May
Alloway, 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, March, November and December (UV index 2).
Average cloud cover in May
Alloway, United Kingdom
- Average cloud cover in May: 53
The month with the most cloud cover is January (Cloud cover 65).
The month with the least cloud cover is April (Cloud cover 52).
Average visibility in May
Alloway, 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).





