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 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
The shift into May records an average high-temperature of a moderate 13.9°C (57°F), subtly varied from April's 12°C (53.6°F). Lettermore records an average low-temperature of 7.4°C (45.3°F) throughout the month of May.Humidity
In Lettermore, the average relative humidity in May is 84%.Rainfall
In Lettermore, in May, during 20.4 rainfall days, 37mm (1.46") of precipitation is typically accumulated. Throughout the year, in Lettermore, there are 235.1 rainfall days, and 619mm (24.37") of precipitation is accumulated.Snowfall
In Lettermore, Ireland, snow does not fall in April through November.Daylight
The average length of the day in May in Lettermore is 15h and 54min.On the first day of May in Lettermore, Ireland, sunrise is at 6:03 am and sunset at 9:08 pm. On the last day of the month, sunrise is at 5:17 am and sunset at 9:55 pm IST.
Sunshine
The average sunshine in May in Lettermore, Ireland, is 6.2h.UV index
The months with the highest UV index in Lettermore are May through July, with an average maximum UV index of 4. A UV Index reading of 3 to 5 represents a moderate health risk from exposure to the Sun's UV rays for average individuals.Note: The UV index of 4 during May translates into the following guidance:
Safety measures are advised. Light-skinned individuals may experience burns in under half an hour. Avoiding direct sunlight during midday hours helps reduce the risk from intense UV radiation. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.
Frequently asked questions
What are the temperatures in Lettermore in May?
What is the average humidity in May in Lettermore?
How many days does it rain in May in Lettermore?
When it does not snow in Lettermore?
What is the average length of the day in May in Lettermore?
When is the sunrise / sunset in May in Lettermore?
How long on average sun shines in May in Lettermore?
What are the months with the highest UV index in Lettermore?
What is the UV index reading in May in Lettermore?
Average temperature in May
Lettermore, Ireland
- Average high temperature in May: 13.9°C
The warmest month (with the highest average high temperature) is July (17.3°C).
The month with the lowest average high temperature is January (7.9°C).
- Average low temperature in May: 7.4°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 (3.3°C).
Average pressure in May
Lettermore, Ireland
- 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
Lettermore, Ireland
- Average wind speed in May: 17km/h
The windiest months (with the highest average wind speed) are February and December (22.2km/h).
The calmest month (with the lowest average wind speed) is July (14.8km/h).
Average humidity in May
Lettermore, Ireland
- Average humidity in May: 84%
The months with the highest relative humidity are January, July, August, September, October, November and December (87%).
The months with the lowest relative humidity are March and April (83%).
Average rainfall in May
Lettermore, Ireland
- Average rainfall in May: 37mm
The wettest month (with the highest rainfall) is November (69mm).
The driest month (with the least rainfall) is April (36mm).
Average rainfall days in May
Lettermore, Ireland
- Average rainfall days in May: 20.4 days
The month with the highest number of rainy days is August (23.2 days).
The month with the least rainy days is April (17.3 days).
Average snowfall in May
Lettermore, Ireland
- Average snowfall in May: 0mm
The month with the highest snowfall is January (7mm).
The months with the least snowfall are April, May, June, July, August, September, October and November (0mm).
Average snowfall days in May
Lettermore, Ireland
- Average snowfall days in May: 0 days
The month with the highest number of snowfall days is March (0.9 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).
Average daylight in May /
Average sunshine in May
Lettermore, Ireland
- Average daylight in May: 15h and 5min
The month with the longest days is June (Average daylight: 16h and 54min).
The month with the shortest days is December (Average daylight: 7h and 36min).
- Average sunshine in May: 6h and 1min
The month with the most sunshine is June (Average sunshine: 7h and 24min).
The month with the least sunshine is December (Average sunshine: 3h and 42min).
Average sunshine days in May
Lettermore, Ireland
- Average sunshine days in May: 6.6 days
The month with the most sunshine days is March (9.4 days).
The month with the least sunshine days is August (4.1 days).
Average UV index in May
Lettermore, Ireland
- Average UV index in May: 4
The months with the highest UV index are May, June and July (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
Lettermore, Ireland
- Average cloud cover in May: 61
The month with the most cloud cover is July (Cloud cover 67).
The month with the least cloud cover is April (Cloud cover 56).
Average visibility in May
Lettermore, 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).
Lettermore, Ireland
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