May weather forecastDonegal, Ireland
May
Weather in May
May in Donegal, Ireland, is characterized by blooming flowers, budding trees, and occasionally, vibrant rainbows. This month is an excellent time for sightseeing and participating in outdoor activities, thanks to the amiable weather. The sea temperature averages at 10.8°C (51.4°F) emphasizing the temperate maritime climate. Comfortable temperaures provide favorable conditions for the growth of varied flora, making May one of the best parts of the year in Donegal, Ireland.Temperature
Donegal ushers in May with an average high-temperature of a mild 13.1°C (55.6°F), showing a close resemblance to the previous month. Nighttime temperatures in May average to a chilly 6.8°C (44.2°F).Humidity
In May, the average relative humidity in Donegal is 84%.Rainfall
In Donegal, in May, during 19.6 rainfall days, 53mm (2.09") of precipitation is typically accumulated. In Donegal, during the entire year, the rain falls for 249.6 days and collects up to 779mm (30.67") of precipitation.Snowfall
April through October are months without snowfall in Donegal, Ireland.Sea temperature
In May, the average sea temperature in Donegal, Ireland, is 10.8°C (51.4°F).Note: Dipping into 10.8°C (51.4°F) below 10°C (50°F) is possible with the right protection; absent that, anticipate cold shock and hampered breathing. Swimming momentarily at 13°C (55.4°F) can be jarring.
Daylight
In May, the average length of the day is 16h and 7min.On the first day of the month, sunrise is at 5:51 am and sunset at 9:07 pm. On the last day of May, sunrise is at 5:03 am and sunset at 9:57 pm IST.
Sunshine
In Donegal, the average sunshine in May is 6h.UV index
The months with the highest UV index in Donegal are May and June, with an average maximum UV index of 4. A UV Index reading of 3 to 5 represents a moderate health risk from unsafe exposure to UV radiation for average individuals.Note: In May, the maximum UV index of 4 transforms into these recommendations:
Put precautions into practice - Ensuring skin and eye safety is a necessity. The solar radiation around mid-day is intense; avoid the Sun and stay safe. Opt for tightly woven and loose clothing to enhance protection from the Sun.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Donegal, Ireland
- Average high temperature in May: 13.1°C
The warmest month (with the highest average high temperature) is July (16.3°C).
The month with the lowest average high temperature is January (6.4°C).
- Average low temperature in May: 6.8°C
The month with the highest average low temperature is August (10.8°C).
The coldest month (with the lowest average low temperature) is January (2.9°C).
Average pressure in May
Donegal, Ireland
- Average pressure in May: 1015.2mbar
The month with the highest atmospheric pressure is May (1015.2mbar).
The month with the lowest atmospheric pressure is November (1006.7mbar).
Average wind speed in May
Donegal, Ireland
- Average wind speed in May: 16.3km/h
The windiest month (with the highest average wind speed) is January (22.1km/h).
The calmest month (with the lowest average wind speed) is July (13.6km/h).
Average humidity in May
Donegal, Ireland
- Average humidity in May: 84%
The month with the highest relative humidity is January (88%).
The month with the lowest relative humidity is April (82%).
Average rainfall in May
Donegal, Ireland
- Average rainfall in May: 53mm
The wettest month (with the highest rainfall) is August (87mm).
The driest month (with the least rainfall) is April (34mm).
Average rainfall days in May
Donegal, Ireland
- Average rainfall days in May: 19.6 days
The month with the highest number of rainy days is August (25.2 days).
The month with the least rainy days is April (17.8 days).
Average snowfall in May
Donegal, Ireland
- Average snowfall in May: 0mm
The month with the highest snowfall is January (41mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).
Average snowfall days in May
Donegal, Ireland
- Average snowfall days in May: 0 days
The month with the highest number of snowfall days is February (2.8 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average sea temperature in May
Donegal, Ireland
- Average sea temperature in May: 10.8°C
The best month for swimming (with the highest average sea temperature) is August (14.8°C).
The coldest month (with the lowest average sea temperature) is March (9.2°C).
Average daylight in May /
Average sunshine in May
Donegal, Ireland
- 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 0min
The month with the most sunshine is June (Average sunshine: 6h and 54min).
The month with the least sunshine is January (Average sunshine: 3h and 6min).
Average sunshine days in May
Donegal, Ireland
- Average sunshine days in May: 8.2 days
The month with the most sunshine days is April (9.5 days).
The month with the least sunshine days is August (3.4 days).
Average UV index in May
Donegal, Ireland
- Average UV index in May: 4
The months with the highest UV index are May and June (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
Donegal, Ireland
- Average cloud cover in May: 61
The months with the most cloud cover are January and August (Cloud cover 70).
The month with the least cloud cover is April (Cloud cover 59).
Average visibility in May
Donegal, Ireland
- Average visibility in May: 9km
The months with the highest visibility are January, February, March, April, May, June, August, September, October, November and December (9km).
The month with the lowest visibility is July (8km).
