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 sea temperature 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
Weather in May
Temperature
May notes an average high-temperature of a still cool 12.3°C (54.1°F), subtly differing from April's 10°C (50°F). The temperature in Ballycastle during May experiences a small drop from daytime peaks, recording an average of 8°C (46.4°F) at night.Humidity
The months with the lowest humidity in Ballycastle are March through May, with an average relative humidity of 81%.Rainfall
The months with the least rainfall are April and May Rain falls for 18.8 days and accumulates 43mm (1.69") of rain.Snowfall
May through October are months without snowfall.Sea temperature
In Ballycastle, the average seawater temperature in May is 10.1°C (50.2°F).Note: To swim in 10.1°C (50.2°F) at less than 10°C (50°F), ensure you're well-protected. Without it, be prepared for a sudden jolt of cold and breathing issues. Remember, even 13°C (55.4°F) is not welcoming.
Daylight
In Ballycastle, the average length of the day in May is 16h and 13min.On the first day of the month, sunrise is at 5:42 am and sunset at 9:01 pm. On the last day of May, sunrise is at 4:52 am and sunset at 9:53 pm BST.
Sunshine
In Ballycastle, the average sunshine in May is 7.3h.UV index
The months with the highest UV index in Ballycastle are May, June and August, with an average maximum UV index of 4. A UV Index value of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV radiation for average individuals.Note: In May, the maximum UV index of 4 suggests these recommendations:
Act with care - The suggestion to avoid sunburn is emphasized. The Sun's harshest UV rays are around midday; it's wise to seek shade and limit time outdoors. For effective sun eye protection, rely on sunglasses certified for UVA and UVB resistance.
Frequently asked questions
What is the usual temperature for Ballycastle in May?
What is the least humid month in Ballycastle?
What is the average humidity in May in Ballycastle?
What is the driest month in Ballycastle?
How much does it rain in Ballycastle in May?
When it does not snow in Ballycastle?
Does it snow in Ballycastle in May?
What is the sea water temperature in May in Ballycastle?
How many hours of daylight does Ballycastle have in May?
When are sunrise and sunset in May in Ballycastle?
How many hours of sunshine does Ballycastle have in May?
What are the months with the highest UV index in Ballycastle?
How high is the UV index in May in Ballycastle?
Average temperature in May
Ballycastle, United Kingdom
- Average high temperature in May: 12.3°C
The warmest month (with the highest average high temperature) is July (15.8°C).
The months with the lowest average high temperature are January and February (7.1°C).
- Average low temperature in May: 8°C
The month with the highest average low temperature is August (12.2°C).
The coldest month (with the lowest average low temperature) is February (4.2°C).
Average pressure in May
Ballycastle, United Kingdom
- Average pressure in May: 1015.3mbar
The month with the highest atmospheric pressure is May (1015.3mbar).
The month with the lowest atmospheric pressure is November (1006.7mbar).
Average wind speed in May
Ballycastle, United Kingdom
- Average wind speed in May: 20.5km/h
The windiest month (with the highest average wind speed) is January (29.3km/h).
The calmest month (with the lowest average wind speed) is June (17.3km/h).
Average humidity in May
Ballycastle, United Kingdom
- Average humidity in May: 81%
The months with the highest relative humidity are July and August (86%).
The months with the lowest relative humidity are March, April and May (81%).
Average rainfall in May
Ballycastle, United Kingdom
- Average rainfall in May: 43mm
The wettest month (with the highest rainfall) is August (93mm).
The driest months (with the least rainfall) are April and May (43mm).
Average rainfall days in May
Ballycastle, United Kingdom
- Average rainfall days in May: 18.8 days
The month with the highest number of rainy days is August (25.5 days).
The month with the least rainy days is February (16.9 days).
Average snowfall in May
Ballycastle, United Kingdom
- Average snowfall in May: 0mm
The month with the highest snowfall is February (24mm).
The months with the least snowfall are May, June, July, August, September and October (0mm).
Average snowfall days in May
Ballycastle, 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 sea temperature in May
Ballycastle, United Kingdom
- Average sea temperature in May: 10.1°C
The best month for swimming (with the highest average sea temperature) is August (14.2°C).
The coldest months (with the lowest average sea temperature) are February and March (8.3°C).
Average daylight in May /
Average sunshine in May
Ballycastle, United Kingdom
- Average daylight in May: 16h and 1min
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 12min).
- Average sunshine in May: 7h and 2min
The month with the most sunshine is June (Average sunshine: 8h and 0min).
The month with the least sunshine is January (Average sunshine: 3h and 42min).
Average sunshine days in May
Ballycastle, United Kingdom
- Average sunshine days in May: 8.9 days
The month with the most sunshine days is April (9.3 days).
The month with the least sunshine days is August (3.3 days).
Average UV index in May
Ballycastle, United Kingdom
- Average UV index in May: 4
The months with the highest UV index are May, 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
Ballycastle, United Kingdom
- Average cloud cover in May: 53
The month with the most cloud cover is January (Cloud cover 64).
The month with the least cloud cover is April (Cloud cover 52).
Average visibility in May
Ballycastle, United Kingdom
- Average visibility in May: 9km
The month with the highest visibility is October (10km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, November and December (9km).
Ballycastle, United Kingdom
Weather forecast for your location
2. Allow the app to use your location
