May weather forecastCairnryan, United Kingdom
May
Weather in May
May, the last month of the spring in Cairnryan, is a fresh month, with temperature in the range of an average low of 8.2°C (46.8°F) and an average high of 12.3°C (54.1°F).Temperature
The transition into May shows a subtle variation to a fresh 12.3°C (54.1°F) from April's 9.9°C (49.8°F) in the average high-temperature. Cairnryan notes a steady average temperature of 8.2°C (46.8°F) during the nights of May.Humidity
The months with the lowest humidity in Cairnryan are April, May and November, with an average relative humidity of 81%.Rainfall
The months with the least rainfall are April and May Rain falls for 14.5 days and accumulates 32mm (1.26") of rain.Snowfall
April through November are months without snowfall in Cairnryan.Sea temperature
In Cairnryan, the average seawater temperature in May is 9.9°C (49.8°F).Note: You can swim in 9.9°C (49.8°F) below 10°C (50°F) with proper thermal wear; failing that, the cold shock and respiratory challenges are nearly certain. A short span at 13°C (55.4°F) without it is tough.
Daylight
In Cairnryan, United Kingdom, the average length of the day in May is 16h and 10min.On the first day of May, sunrise is at 5:38 am and sunset at 8:55 pm. On the last day of the month, sunrise is at 4:48 am and sunset at 9:46 pm BST.
Sunshine
In Cairnryan, the average sunshine in May is 7.5h.UV index
May through September, with an average maximum UV index of 4, are months with the highest UV index. A UV Index of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV rays for the ordinary person.Note: The daily high UV index of 4 during May translates into the following recommendations:
Exercise caution. The susceptibility of light skin individuals to burns is less than 30 minutes. Midday is the peak time for the Sun's radiation; stay in the shade and protect yourself. To best shield against UV radiation, choose sun-safe garments and dependable sunglasses.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Cairnryan, United Kingdom
- Average high temperature in May: 12.3°C
The warmest month (with the highest average high temperature) is July (15.9°C).
The month with the lowest average high temperature is February (6.9°C).
- Average low temperature in May: 8.2°C
The month with the highest average low temperature is August (12.7°C).
The coldest month (with the lowest average low temperature) is February (4.3°C).
Average pressure in May
Cairnryan, United Kingdom
- Average pressure in May: 1015.6mbar
The month with the highest atmospheric pressure is May (1015.6mbar).
The month with the lowest atmospheric pressure is November (1007.3mbar).
Average wind speed in May
Cairnryan, United Kingdom
- Average wind speed in May: 20.1km/h
The windiest month (with the highest average wind speed) is December (29.5km/h).
The calmest month (with the lowest average wind speed) is June (17.4km/h).
Average humidity in May
Cairnryan, United Kingdom
- Average humidity in May: 81%
The month with the highest relative humidity is August (86%).
The months with the lowest relative humidity are April, May and November (81%).
Average rainfall in May
Cairnryan, United Kingdom
- Average rainfall in May: 32mm
The wettest month (with the highest rainfall) is November (72mm).
The driest months (with the least rainfall) are April and May (32mm).
Average rainfall days in May
Cairnryan, United Kingdom
- Average rainfall days in May: 14.5 days
The month with the highest number of rainy days is August (20.7 days).
The month with the least rainy days is May (14.5 days).
Average snowfall in May
Cairnryan, United Kingdom
- Average snowfall in May: 0mm
The month with the highest snowfall is January (14mm).
The months with the least snowfall are April, May, June, July, August, September, October and November (0mm).
Average snowfall days in May
Cairnryan, United Kingdom
- Average snowfall days in May: 0 days
The month with the highest number of snowfall days is February (2.2 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).
Average sea temperature in May
Cairnryan, United Kingdom
- Average sea temperature in May: 9.9°C
The best months for swimming (with the highest average sea temperature) are August and September (14.3°C).
The coldest month (with the lowest average sea temperature) is March (7.8°C).
Average daylight in May /
Average sunshine in May
Cairnryan, United Kingdom
- Average daylight in May: 16h and 12min
The month with the longest days is June (Average daylight: 17h and 18min).
The month with the shortest days is December (Average daylight: 7h and 18min).
- Average sunshine in May: 7h and 30min
The month with the most sunshine is June (Average sunshine: 7h and 48min).
The month with the least sunshine is January (Average sunshine: 3h and 30min).
Average sunshine days in May
Cairnryan, 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 December (7.2 days).
Average UV index in May
Cairnryan, 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
Cairnryan, United Kingdom
- Average cloud cover in May: 52
The month with the most cloud cover is January (Cloud cover 66).
The months with the least cloud cover are April and May (Cloud cover 52).
Average visibility in May
Cairnryan, United Kingdom
- Average visibility in May: 10km
The months with the highest visibility are March, April, May, June, September, October, November and December (10km).
The months with the lowest visibility are January, February, July and August (9km).
