May weather forecastTreforest, United Kingdom
May
Weather in May
The last month of the spring, May, is a moderate month in Treforest, United Kingdom, with an average temperature fluctuating between 14.4°C (57.9°F) and 7.5°C (45.5°F).Temperature
Treforest's shift into May sets the average high-temperature at a refreshing 14.4°C (57.9°F), a figure that deviates only slightly from April's 12.2°C (54°F). Treforest experiences an average nighttime temperature of 7.5°C (45.5°F) in the month of May.Humidity
The months with the lowest humidity are April and May, with an average relative humidity of 82%.Rainfall
The month with the least rainfall is May, when the rain falls for 11.2 days and typically collects 11mm (0.43") of precipitation.Snowfall
In Treforest, snow does not fall in May through October.Daylight
In May, the average length of the day in Treforest is 15h and 39min.On the first day of the month, sunrise is at 5:43 am and sunset at 8:37 pm. On the last day of May, sunrise is at 5:01 am and sunset at 9:20 pm BST.
Sunshine
May has the most sunshine of the year in Treforest, with an average of 7.9h of sunshine.UV index
May through September, with an average maximum UV index of 4, are months with the highest UV index in Treforest. A UV Index of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV radiation for average individuals.Note: In May, the maximum UV index of 4 suggests these recommendations:
Adopt protective measures - Requirement to safeguard skin and eyes from harm exists. Exposing oneself to the midday Sun can be harmful due to the strong UV radiation; limit your time outside. It's wise to wear UVA and UVB-blocking sunglasses when the sun shines brightly.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Treforest, United Kingdom
- Average high temperature in May: 14.4°C
The warmest month (with the highest average high temperature) is July (18.8°C).
The month with the lowest average high temperature is January (7°C).
- Average low temperature in May: 7.5°C
The month with the highest average low temperature is August (12.2°C).
The coldest month (with the lowest average low temperature) is January (3.1°C).
Average pressure in May
Treforest, 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 (1009.9mbar).
Average wind speed in May
Treforest, United Kingdom
- Average wind speed in May: 15.3km/h
The windiest month (with the highest average wind speed) is February (21.3km/h).
The calmest month (with the lowest average wind speed) is June (14.4km/h).
Average humidity in May
Treforest, United Kingdom
- Average humidity in May: 82%
The months with the highest relative humidity are November and December (88%).
The months with the lowest relative humidity are April and May (82%).
Average rainfall in May
Treforest, United Kingdom
- Average rainfall in May: 11mm
The wettest month (with the highest rainfall) is November (35mm).
The driest month (with the least rainfall) is May (11mm).
Average rainfall days in May
Treforest, United Kingdom
- Average rainfall days in May: 11.2 days
The month with the highest number of rainy days is November (15.4 days).
The month with the least rainy days is April (9.5 days).
Average snowfall in May
Treforest, United Kingdom
- Average snowfall in May: 0mm
The month with the highest snowfall is January (6mm).
The months with the least snowfall are May, June, July, August, September and October (0mm).
Average snowfall days in May
Treforest, United Kingdom
- Average snowfall days in May: 0 days
The month with the highest number of snowfall days is January (2.3 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
Treforest, United Kingdom
- Average daylight in May: 15h and 36min
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: 7h and 54min
The month with the most sunshine is May (Average sunshine: 7h and 54min).
The month with the least sunshine is November (Average sunshine: 3h and 42min).
Average sunshine days in May
Treforest, United Kingdom
- Average sunshine days in May: 16.1 days
The month with the most sunshine days is April (16.8 days).
The month with the least sunshine days is November (10.7 days).
Average UV index in May
Treforest, 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, March, November and December (UV index 2).
Average cloud cover in May
Treforest, United Kingdom
- Average cloud cover in May: 49
The month with the most cloud cover is November (Cloud cover 63).
The months with the least cloud cover are April and May (Cloud cover 49).
Average visibility in May
Treforest, 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).
