May weather forecastCilybebyll, United Kingdom
May weather for Cilybebyll, United Kingdom: The last month of the spring, May, is a moderate month in Cilybebyll, United Kingdom, with an average temperature varying between 14.2°C (57.6°F) and 8°C (46.4°F). The month with the least rainfall in Cilybebyll is May, when the rain falls for 14.1 days and typically collects 31mm (1.22") of precipitation.
May
Weather in May
The last month of the spring, May, is a moderate month in Cilybebyll, United Kingdom, with an average temperature varying between 14.2°C (57.6°F) and 8°C (46.4°F).Temperature
Cilybebyll marks the start of May with an average high-temperature of a mild 14.2°C (57.6°F), hinting at a slight fluctuation from April's 12°C (53.6°F). Cilybebyll encounters a steady low-temperature average of 8°C (46.4°F) throughout the month of May.Humidity
In May, the average relative humidity is 82%.Rainfall
May is the month with the least rainfall in Cilybebyll. Rain falls for 14.1 days and accumulates 31mm (1.22") of precipitation.Snowfall
In Cilybebyll, snow does not fall in April through November.Daylight
The average length of the day in May is 15h and 40min.On the first day of May in Cilybebyll, United Kingdom, sunrise is at 5:44 am and sunset at 8:39 pm. On the last day of the month, sunrise is at 5:02 am and sunset at 9:23 pm BST.
Sunshine
The month with the most sunshine in Cilybebyll 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 of 3 to 5 symbolizes a medium health hazard from unprotected exposure to Sun's UV rays for the ordinary person.Note: During May, 4 as the daily maximum UV index converts into the following advice:
Act with care - The suggestion to avoid sunburn is emphasized. UV radiation is strongest from the Sun during midday; protect yourself by staying in shaded areas. On days when the sun blazes, arm yourself with sunglasses that block UVA and UVB radiation.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Cilybebyll, 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
Cilybebyll, 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
Cilybebyll, 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
Cilybebyll, 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
Cilybebyll, 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
Cilybebyll, 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
Cilybebyll, 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
Cilybebyll, 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
Cilybebyll, United Kingdom
- Average daylight in May: 15h and 42min
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 6min
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
Cilybebyll, 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
Cilybebyll, 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
Cilybebyll, 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
Cilybebyll, 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).





