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
Pennal greets May with an average high-temperature of a moderate 13.8°C (56.8°F), marking a slight deviation from the preceding month. Throughout the month of May, the average temperature in Pennal dips to a frosty 6.2°C (43.2°F) at night.Humidity
The months with the lowest humidity are April and May, with an average relative humidity of 84%.Rainfall
The month with the least rainfall in Pennal is May, when the rain falls for 17.3 days and typically collects 41mm (1.61") of precipitation.Snowfall
Months with snowfall in Pennal are January through May, November and December. May is the last month it regularly snows. During 0.2 snowfall days, in May, Pennal aggregates 1mm (0.04") of snow. In Pennal, during the entire year, snow falls for 17.5 days and aggregates up to 199mm (7.83") of snow.Daylight
In Pennal, the average length of the day in May is 15h and 47min.On the first day of the month, sunrise is at 5:42 am and sunset at 8:42 pm. On the last day of May, in Pennal, United Kingdom, sunrise is at 4:58 am and sunset at 9:28 pm BST.
Sunshine
With an average of 7h of sunshine, May has the most sunshine of the year.UV index
The months with the highest UV index in Pennal are May through August, with an average maximum UV index of 4. A UV Index of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV rays for ordinary individuals.Note: In May, the maximum UV index of 4 suggests these recommendations:
Take precautions - Protection against sun damage is advised. The Sun's most harmful UV rays are emitted around midday; avoid staying outdoors for long during this time. On days when the sun blazes, arm yourself with sunglasses that block UVA and UVB radiation. Alert! The snow's reflection can amplify the UV radiation of the Sun nearly twice.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the temperature in May in Pennal?
What are the least humid months in Pennal?
What is the average humidity in May in Pennal?
What is the driest month in Pennal?
How much does it rain in Pennal in May?
What is the last month it snows in Pennal?
What is the average length of the day in May in Pennal?
When are sunrise and sunset in May in Pennal?
What month has the most sunshine in Pennal?
How many hours of sunshine does Pennal have in May?
When is the highest UV index in Pennal?
How high is the UV index in May in Pennal?
Average temperature in May
Pennal, United Kingdom
- Average high temperature in May: 13.8°C
The warmest month (with the highest average high temperature) is July (17.4°C).
The month with the lowest average high temperature is January (5.7°C).
- Average low temperature in May: 6.2°C
The month with the highest average low temperature is August (10.6°C).
The coldest month (with the lowest average low temperature) is February (1.6°C).
Average pressure in May
Pennal, United Kingdom
- Average pressure in May: 1016.4mbar
The month with the highest atmospheric pressure is May (1016.4mbar).
The month with the lowest atmospheric pressure is November (1009.3mbar).
Average wind speed in May
Pennal, United Kingdom
- Average wind speed in May: 13.9km/h
The windiest month (with the highest average wind speed) is December (19.3km/h).
The calmest month (with the lowest average wind speed) is June (12.3km/h).
Average humidity in May
Pennal, United Kingdom
- Average humidity in May: 84%
The months with the highest relative humidity are January, October, November and December (90%).
The months with the lowest relative humidity are April and May (84%).
Average rainfall in May
Pennal, United Kingdom
- Average rainfall in May: 41mm
The wettest month (with the highest rainfall) is December (90mm).
The driest month (with the least rainfall) is May (41mm).
Average rainfall days in May
Pennal, United Kingdom
- Average rainfall days in May: 17.3 days
The month with the highest number of rainy days is August (20 days).
The month with the least rainy days is February (14.3 days).
Average snowfall in May
Pennal, United Kingdom
- Average snowfall in May: 1mm
The month with the highest snowfall is February (61mm).
The months with the least snowfall are June, July, August, September and October (0mm).
Average snowfall days in May
Pennal, United Kingdom
- Average snowfall days in May: 0.2 days
The month with the highest number of snowfall days is February (4.9 days).
The months with the least snowfall days are June, July, August, September and October (0 days).
Average daylight in May /
Average sunshine in May
Pennal, 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: 7h and 0min
The month with the most sunshine is May (Average sunshine: 7h and 0min).
The months with the least sunshine are January and February (Average sunshine: 3h and 12min).
Average sunshine days in May
Pennal, United Kingdom
- Average sunshine days in May: 10.3 days
The month with the most sunshine days is March (12.3 days).
The month with the least sunshine days is August (6.6 days).
Average UV index in May
Pennal, 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, November and December (UV index 2).
Average cloud cover in May
Pennal, United Kingdom
- Average cloud cover in May: 56
The month with the most cloud cover is December (Cloud cover 69).
The months with the least cloud cover are April and May (Cloud cover 56).
Average visibility in May
Pennal, United Kingdom
- Average visibility in May: 8km
The month with the highest visibility is March (9km).
The months with the lowest visibility are January, February, April, May, June, July, August, September, October, November and December (8km).
