May weather forecastKillyleagh, United Kingdom
May
Weather in May
May, the last month of the spring in Killyleagh, is a cool month, with temperature in the range of an average high of 12.2°C (54°F) and an average low of 8.9°C (48°F).Temperature
The average high-temperature during May registers at a cool 12.2°C (54°F), maintaining a close resemblance to the previous month. Killyleagh's average nighttime temperature in May modestly descends to a chilly 8.9°C (48°F).Humidity
The average relative humidity in May in Killyleagh is 82%.Rainfall
The month with the least rainfall is May, when the rain falls for 14.1 days and typically collects 20mm (0.79") of precipitation.Snowfall
In Killyleagh, United Kingdom, snow does not fall in April through October.Daylight
In Killyleagh, United Kingdom, the average length of the day in May is 16h and 4min.On the first day of May, sunrise is at 5:43 am and sunset at 8:56 pm. On the last day of the month, sunrise is at 4:55 am and sunset at 9:45 pm BST.
Sunshine
May and June, with an average of 7.9h of sunshine, are months with the most sunshine in Killyleagh.UV index
The months with the highest UV index are May through September, with an average maximum UV index of 4. A UV Index of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV rays for ordinary individuals.Note: In May, the average maximum UV index of 4 translates into the following recommendations:
Be vigilant - A duty to shield skin and eyes from injury exists. Exposing oneself to the midday Sun can be harmful due to the strong UV radiation; limit your time outside. For optimum UV protection, wear sun-resistant attire complemented with a hat and quality shades.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Killyleagh, United Kingdom
- Average high temperature in May: 12.2°C
The warmest month (with the highest average high temperature) is August (16.3°C).
The month with the lowest average high temperature is February (7.5°C).
- Average low temperature in May: 8.9°C
The month with the highest average low temperature is August (13.2°C).
The coldest month (with the lowest average low temperature) is February (4.9°C).
Average pressure in May
Killyleagh, United Kingdom
- Average pressure in May: 1015.7mbar
The month with the highest atmospheric pressure is May (1015.7mbar).
The month with the lowest atmospheric pressure is November (1007.7mbar).
Average wind speed in May
Killyleagh, United Kingdom
- Average wind speed in May: 19.8km/h
The windiest month (with the highest average wind speed) is December (28.9km/h).
The calmest month (with the lowest average wind speed) is June (17.3km/h).
Average humidity in May
Killyleagh, United Kingdom
- Average humidity in May: 82%
The months with the highest relative humidity are July and August (85%).
The months with the lowest relative humidity are March, April and November (81%).
Average rainfall in May
Killyleagh, United Kingdom
- Average rainfall in May: 20mm
The wettest month (with the highest rainfall) is November (52mm).
The driest month (with the least rainfall) is May (20mm).
Average rainfall days in May
Killyleagh, United Kingdom
- Average rainfall days in May: 14.1 days
The month with the highest number of rainy days is July (17.9 days).
The month with the least rainy days is September (10.8 days).
Average snowfall in May
Killyleagh, United Kingdom
- Average snowfall in May: 0mm
The month with the highest snowfall is December (8mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).
Average snowfall days in May
Killyleagh, United Kingdom
- Average snowfall days in May: 0 days
The month with the highest number of snowfall days is February (1.6 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
Killyleagh, United Kingdom
- Average daylight in May: 16h and 6min
The month with the longest days is June (Average daylight: 17h and 6min).
The month with the shortest days is December (Average daylight: 7h and 24min).
- Average sunshine in May: 7h and 54min
The months with the most sunshine are May and June (Average sunshine: 7h and 54min).
The months with the least sunshine are January, February and November (Average sunshine: 4h and 6min).
Average sunshine days in May
Killyleagh, United Kingdom
- Average sunshine days in May: 14 days
The month with the most sunshine days is September (16.2 days).
The month with the least sunshine days is August (9.5 days).
Average UV index in May
Killyleagh, 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 and December (UV index 2).
Average cloud cover in May
Killyleagh, United Kingdom
- Average cloud cover in May: 49
The month with the most cloud cover is January (Cloud cover 59).
The months with the least cloud cover are April and May (Cloud cover 49).
Average visibility in May
Killyleagh, United Kingdom
- Average visibility in May: 10km
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
