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
May
Weather in May
Temperature
The transition from April to May brings an average high-temperature of a still cool 12.2°C (54°F), barely different from April's 10.3°C (50.5°F). May nights in Llanystumdwy, United Kingdom, witness a mild cool down to an average low of 9.3°C (48.7°F).Humidity
In Llanystumdwy, the average relative humidity in May is 82%.Rainfall
In Llanystumdwy, in May, it is raining for 15.8 days, with typically 40mm (1.57") of accumulated precipitation. In Llanystumdwy, during the entire year, the rain falls for 222.9 days and collects up to 765mm (30.12") of precipitation.Snowfall
In Llanystumdwy, snow does not fall in April through November.Daylight
In May, the average length of the day is 15h and 50min.On the first day of May, sunrise is at 5:42 am and sunset at 8:45 pm. On the last day of the month, sunrise is at 4:58 am and sunset at 9:31 pm BST.
Sunshine
The month with the most sunshine is May, with an average of 8.3h of sunshine.UV index
May through August, with an average maximum UV index of 4, are months with the highest UV index in Llanystumdwy, United Kingdom. A UV Index value of 3 to 5 symbolizes a medium health hazard from unsafe exposure to UV radiation for the average person.Note: The maximum daily UV index, 4 in May, converts into the following recommendations:
Exercise prevention - Precautions against solar damage are endorsed. Limiting sun exposure during midday hours helps in reducing the harmful effects of UV radiation. For effective sun eye protection, rely on sunglasses certified for UVA and UVB resistance.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the usual temperature for Llanystumdwy in May?
What is the average humidity in May in Llanystumdwy?
How many days does it rain in May in Llanystumdwy?
When it does not snow in Llanystumdwy?
How many hours of daylight does Llanystumdwy have in May?
When is the sunrise / sunset in May in Llanystumdwy?
What month has the most sunshine in Llanystumdwy?
How long on average sun shines in May in Llanystumdwy?
What is the month with the highest UV index in Llanystumdwy?
What is the UV index intensity in May in Llanystumdwy?
Average temperature in May
Llanystumdwy, United Kingdom
- Average high temperature in May: 12.2°C
The warmest month (with the highest average high temperature) is August (16.3°C).
The month with the lowest average high temperature is February (7.7°C).
- Average low temperature in May: 9.3°C
The month with the highest average low temperature is August (14.1°C).
The coldest month (with the lowest average low temperature) is February (5.7°C).
Average pressure in May
Llanystumdwy, United Kingdom
- Average pressure in May: 1016.2mbar
The month with the highest atmospheric pressure is May (1016.2mbar).
The month with the lowest atmospheric pressure is November (1008.9mbar).
Average wind speed in May
Llanystumdwy, United Kingdom
- Average wind speed in May: 19.6km/h
The windiest month (with the highest average wind speed) is December (30.9km/h).
The calmest month (with the lowest average wind speed) is June (18km/h).
Average humidity in May
Llanystumdwy, United Kingdom
- Average humidity in May: 82%
The months with the highest relative humidity are June, July and August (84%).
The month with the lowest relative humidity is November (79%).
Average rainfall in May
Llanystumdwy, United Kingdom
- Average rainfall in May: 40mm
The wettest month (with the highest rainfall) is November (97mm).
The driest month (with the least rainfall) is April (37mm).
Average rainfall days in May
Llanystumdwy, United Kingdom
- Average rainfall days in May: 15.8 days
The month with the highest number of rainy days is December (23.1 days).
The month with the least rainy days is April (14.5 days).
Average snowfall in May
Llanystumdwy, United Kingdom
- Average snowfall in May: 0mm
The month with the highest snowfall is February (7mm).
The months with the least snowfall are April, May, June, July, August, September, October and November (0mm).
Average snowfall days in May
Llanystumdwy, United Kingdom
- Average snowfall days in May: 0 days
The months with the highest number of snowfall days are January and February (1.1 days).
The months with the least snowfall days are April, May, June, July, August, September, October and November (0 days).
Average daylight in May /
Average sunshine in May
Llanystumdwy, United Kingdom
- 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: 8h and 2min
The month with the most sunshine is May (Average sunshine: 8h and 18min).
The month with the least sunshine is December (Average sunshine: 3h and 24min).
Average sunshine days in May
Llanystumdwy, United Kingdom
- Average sunshine days in May: 13.5 days
The months with the most sunshine days are April and May (13.5 days).
The month with the least sunshine days is December (4.5 days).
Average UV index in May
Llanystumdwy, United Kingdom
- Average UV index in May: 4
The months with the highest UV index are May, June, July and August (UV index 4).
The months with the lowest UV index are January, February, March and December (UV index 2).
Average cloud cover in May
Llanystumdwy, United Kingdom
- Average cloud cover in May: 47
The month with the most cloud cover is December (Cloud cover 67).
The month with the least cloud cover is May (Cloud cover 47).
Average visibility in May
Llanystumdwy, United Kingdom
- Average visibility in May: 10km
The months with the highest visibility are February, March, April, May, June, July, August, September, October, November and December (10km).
The month with the lowest visibility is January (9km).
