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
The high-temperature average in May for Shannon, Ireland, is a moderate 14.3°C (57.7°F), staying closely aligned with April's conditions. During the May nights, an average temperature of 6.6°C (43.9°F) is observed in Shannon, Ireland.Humidity
The average relative humidity in May in Shannon is 85%.Rainfall
In Shannon, Ireland, during May, the rain falls for 18.8 days and regularly aggregates up to 35mm (1.38") of precipitation. Throughout the year, in Shannon, Ireland, there are 204.6 rainfall days, and 512mm (20.16") of precipitation is accumulated.Snowfall
In Shannon, Ireland, snow does not fall in April through November.Sea temperature
In Shannon, in May, the average water temperature is 11.4°C (52.5°F).Note: Danger awaits those who swim in 11.4°C (52.5°F) without protection. Falling below 10°C (50°F) means intense cold shock and hyperventilation.
Daylight
In Shannon, the average length of the day in May is 15h and 49min.On the first day of May in Shannon, sunrise is at 6:01 am and sunset at 9:03 pm. On the last day of the month, sunrise is at 5:17 am and sunset at 9:48 pm IST.
Sunshine
In Shannon, the average sunshine in May is 6.1h.UV index
The months with the highest UV index in Shannon 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 exposure to the Sun's UV rays for ordinary individuals.Note: The daily maximum UV index of 4 in May interprets into the following advice:
Take precautions - Protection against skin and eye damage is obliged. Stay safe from the Sun's strongest UV rays by limiting exposure during midday. For effective sun eye protection, rely on sunglasses certified for UVA and UVB resistance.
Frequently asked questions
What is the average May temperature in Shannon?
What is the average humidity in May in Shannon?
How much does it rain in Shannon in May?
When it does not snow in Shannon?
What is the water temperature in May in Shannon?
How many hours of daylight does Shannon have in May?
What time are sunrise and sunset in May in Shannon?
How long on average sun shines in May in Shannon?
When is the highest UV index in Shannon?
What is the UV index reading in May in Shannon?
Average temperature in May
Shannon, Ireland
- Average high temperature in May: 14.3°C
The warmest month (with the highest average high temperature) is July (18°C).
The month with the lowest average high temperature is January (7.8°C).
- Average low temperature in May: 6.6°C
The month with the highest average low temperature is July (11.1°C).
The coldest months (with the lowest average low temperature) are February and March (2.9°C).
Average pressure in May
Shannon, Ireland
- Average pressure in May: 1016mbar
The month with the highest atmospheric pressure is May (1016mbar).
The month with the lowest atmospheric pressure is November (1008.3mbar).
Average wind speed in May
Shannon, Ireland
- Average wind speed in May: 15.2km/h
The windiest month (with the highest average wind speed) is February (19km/h).
The calmest month (with the lowest average wind speed) is July (13.3km/h).
Average humidity in May
Shannon, Ireland
- Average humidity in May: 85%
The months with the highest relative humidity are November and December (90%).
The month with the lowest relative humidity is April (84%).
Average rainfall in May
Shannon, Ireland
- Average rainfall in May: 35mm
The wettest month (with the highest rainfall) is December (56mm).
The driest month (with the least rainfall) is September (33mm).
Average rainfall days in May
Shannon, Ireland
- Average rainfall days in May: 18.8 days
The month with the highest number of rainy days is August (20.4 days).
The month with the least rainy days is February (14.8 days).
Average snowfall in May
Shannon, Ireland
- Average snowfall in May: 0mm
The month with the highest snowfall is December (21mm).
The months with the least snowfall are April, May, June, July, August, September, October and November (0mm).
Average snowfall days in May
Shannon, Ireland
- Average snowfall days in May: 0 days
The month with the highest number of snowfall days is February (0.9 days).
The months with the least snowfall days are May, June, July, August, September, October and November (0 days).
Average sea temperature in May
Shannon, Ireland
- Average sea temperature in May: 11.4°C
The best month for swimming (with the highest average sea temperature) is August (15.8°C).
The coldest month (with the lowest average sea temperature) is March (9.4°C).
Average daylight in May /
Average sunshine in May
Shannon, Ireland
- Average daylight in May: 15h and 5min
The month with the longest days is June (Average daylight: 16h and 48min).
The month with the shortest days is December (Average daylight: 7h and 42min).
- Average sunshine in May: 6h and 1min
The month with the most sunshine is June (Average sunshine: 7h and 18min).
The months with the least sunshine are January and December (Average sunshine: 4h and 0min).
Average sunshine days in May
Shannon, Ireland
- Average sunshine days in May: 8 days
The month with the most sunshine days is December (12.6 days).
The month with the least sunshine days is July (7.6 days).
Average UV index in May
Shannon, 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
Shannon, Ireland
- Average cloud cover in May: 62
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
Shannon, Ireland
- Average visibility in May: 8km
The months with the highest visibility are January, February, March, April, November and December (9km).
The months with the lowest visibility are May, June, July, August, September and October (8km).
Shannon, Ireland
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