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
May ushers in an average high-temperature of a still fresh 12.7°C (54.9°F), aligning closely with the preceding month. In Castlewellan, the month of May records an average minimum temperature of 7.8°C (46°F), a slight dip from the daily highs.Humidity
March through May, with an average relative humidity of 83%, are the least humid months.Rainfall
May is the month with the least rainfall in Castlewellan. Rain falls for 15.7 days and accumulates 32mm (1.26") of precipitation.Snowfall
In Castlewellan, snow does not fall in April through October.Daylight
In May, the average length of the day in Castlewellan is 16h and 3min.On the first day of May, sunrise is at 5:44 am and sunset at 8:56 pm. On the last day of the month, sunrise is at 4:57 am and sunset at 9:46 pm BST.
Sunshine
In Castlewellan, the average sunshine in May is 7.3h.UV index
In Castlewellan, the average daily maximum UV index in May is 3. A UV Index of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV rays for the average person.Note: The maximum UV index of 3 during May leads to these instructions:
Undertake precautions - Guarding against sun damage is counselled. UV radiation from the Sun is most dangerous during midday; take precautions and seek shade. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects.
Frequently asked questions
What are May temperatures in Castlewellan?
What is the least humid month in Castlewellan?
What is the average humidity in May in Castlewellan?
What is the driest month in Castlewellan?
How many days does it rain in May in Castlewellan?
When it does not snow in Castlewellan?
How many hours of daylight does Castlewellan have in May?
When is the sunrise / sunset in May in Castlewellan?
How long on average sun shines in May in Castlewellan?
What is the UV index intensity in May in Castlewellan?
Average temperature in May
Castlewellan, United Kingdom
- Average high temperature in May: 12.7°C
The warmest months (with the highest average high temperature) are July and August (16.6°C).
The month with the lowest average high temperature is February (7.1°C).
- Average low temperature in May: 7.8°C
The months with the highest average low temperature are July and August (12.1°C).
The coldest month (with the lowest average low temperature) is February (3.9°C).
Average pressure in May
Castlewellan, United Kingdom
- 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 (1007.6mbar).
Average wind speed in May
Castlewellan, United Kingdom
- Average wind speed in May: 17.4km/h
The windiest month (with the highest average wind speed) is December (24.4km/h).
The calmest month (with the lowest average wind speed) is July (15km/h).
Average humidity in May
Castlewellan, United Kingdom
- Average humidity in May: 83%
The month with the highest relative humidity is August (87%).
The months with the lowest relative humidity are March, April and May (83%).
Average rainfall in May
Castlewellan, United Kingdom
- Average rainfall in May: 32mm
The wettest month (with the highest rainfall) is November (68mm).
The driest month (with the least rainfall) is May (32mm).
Average rainfall days in May
Castlewellan, United Kingdom
- Average rainfall days in May: 15.7 days
The month with the highest number of rainy days is July (19.4 days).
The month with the least rainy days is September (11.5 days).
Average snowfall in May
Castlewellan, United Kingdom
- Average snowfall in May: 0mm
The month with the highest snowfall is January (9mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).
Average snowfall days in May
Castlewellan, United Kingdom
- Average snowfall days in May: 0 days
The month with the highest number of snowfall days is February (2 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
Castlewellan, United Kingdom
- Average daylight in May: 16h and 0min
The month with the longest days is June (Average daylight: 17h and 6min).
The month with the shortest days is December (Average daylight: 7h and 24min).
- Average sunshine in May: 7h and 2min
The month with the most sunshine is June (Average sunshine: 7h and 48min).
The months with the least sunshine are January and February (Average sunshine: 3h and 54min).
Average sunshine days in May
Castlewellan, United Kingdom
- Average sunshine days in May: 13.2 days
The month with the most sunshine days is September (15.7 days).
The month with the least sunshine days is July (9.2 days).
Average UV index in May
Castlewellan, United Kingdom
- Average UV index in May: 3
The months with the highest UV index are June, August and September (UV index 4).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in May
Castlewellan, United Kingdom
- Average cloud cover in May: 52
The months with the most cloud cover are January and February (Cloud cover 60).
The month with the least cloud cover is April (Cloud cover 51).
Average visibility in May
Castlewellan, United Kingdom
- Average visibility in May: 9km
The months with the highest visibility are February, March, September, October, November and December (10km).
The months with the lowest visibility are January, April, May, June, July and August (9km).
Castlewellan, United Kingdom
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