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
As May takes its course, Alltwen's average high-temperature registers at a moderate 14.2°C (57.6°F), closely aligning with the preceding month. Alltwen registers a consistent average low-temperature of 8°C (46.4°F) during May.Humidity
In May, the average relative humidity is 82%.Rainfall
The month with the least rainfall in Alltwen is May, when the rain falls for 14.1 days and typically collects 31mm (1.22") of precipitation.Snowfall
In Alltwen, United Kingdom, snow does not fall in April through November.Daylight
In Alltwen, the average length of the day in May is 15h and 40min.On the first day of the month, sunrise is at 5:45 am and sunset at 8:39 pm. On the last day of May, in Alltwen, sunrise is at 5:02 am and sunset at 9:23 pm BST.
Sunshine
The month with the most sunshine in Alltwen is May, with an average of 8.1h of sunshine.UV index
May through September, with an average maximum UV index of 4, are months with the highest UV index. A UV Index reading of 3 to 5 represents a medium vulnerability from unsafe exposure to UV radiation for the ordinary person.Note: The maximum UV index, 4 during May, leads to the following recommendations:
Be vigilant - A duty to shield skin and eyes from injury exists. Avoiding the Sun's peak radiation during midday hours is essential for health and safety. Employ a hat with a wide brim for robust protection, cutting UV exposure by half.
Frequently asked questions
What is the temperature in May in Alltwen?
What is the average humidity in May in Alltwen?
What is the driest month in Alltwen?
How much does it rain in Alltwen in May?
When it does not snow in Alltwen?
What is the average length of the day in May in Alltwen?
When are sunrise and sunset in May in Alltwen?
What month has the most sunshine in Alltwen?
How long on average sun shines in May in Alltwen?
When is the highest UV index in Alltwen?
What is the UV index intensity in May in Alltwen?
Average temperature in May
Alltwen, United Kingdom
- Average high temperature in May: 14.2°C
The warmest month (with the highest average high temperature) is July (18.2°C).
The months with the lowest average high temperature are January and February (7.3°C).
- Average low temperature in May: 8°C
The month with the highest average low temperature is August (12.9°C).
The coldest month (with the lowest average low temperature) is February (3.8°C).
Average pressure in May
Alltwen, United Kingdom
- Average pressure in May: 1016.7mbar
The months with the highest atmospheric pressure are May and September (1016.7mbar).
The month with the lowest atmospheric pressure is November (1009.8mbar).
Average wind speed in May
Alltwen, United Kingdom
- Average wind speed in May: 15.8km/h
The windiest month (with the highest average wind speed) is December (22.4km/h).
The calmest month (with the lowest average wind speed) is June (14.9km/h).
Average humidity in May
Alltwen, United Kingdom
- Average humidity in May: 82%
The months with the highest relative humidity are January and December (87%).
The month with the lowest relative humidity is April (81%).
Average rainfall in May
Alltwen, United Kingdom
- Average rainfall in May: 31mm
The wettest months (with the highest rainfall) are November and December (66mm).
The driest month (with the least rainfall) is May (31mm).
Average rainfall days in May
Alltwen, United Kingdom
- Average rainfall days in May: 14.1 days
The month with the highest number of rainy days is November (17 days).
The month with the least rainy days is September (12.6 days).
Average snowfall in May
Alltwen, United Kingdom
- Average snowfall in May: 0mm
The month with the highest snowfall is January (12mm).
The months with the least snowfall are April, May, June, July, August, September, October and November (0mm).
Average snowfall days in May
Alltwen, United Kingdom
- Average snowfall days in May: 0 days
The month with the highest number of snowfall days is January (2 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in May /
Average sunshine in May
Alltwen, United Kingdom
- Average daylight in May: 15h and 4min
The month with the longest days is June (Average daylight: 16h and 36min).
The month with the shortest days is December (Average daylight: 7h and 54min).
- Average sunshine in May: 8h and 1min
The month with the most sunshine is May (Average sunshine: 8h and 6min).
The month with the least sunshine is January (Average sunshine: 3h and 42min).
Average sunshine days in May
Alltwen, United Kingdom
- Average sunshine days in May: 14 days
The month with the most sunshine days is September (14.4 days).
The month with the least sunshine days is July (10.3 days).
Average UV index in May
Alltwen, United Kingdom
- Average UV index in May: 4
The months with the highest UV index are May, June, July, 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
Alltwen, United Kingdom
- Average cloud cover in May: 47
The month with the most cloud cover is December (Cloud cover 63).
The months with the least cloud cover are April and May (Cloud cover 47).
Average visibility in May
Alltwen, United Kingdom
- Average visibility in May: 9km
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (9km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (9km).
Alltwen, United Kingdom
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