May weather forecastGraffham, United Kingdom
May
Weather in May
May, the last month of the spring in Graffham, is a mild month, with an average temperature ranging between min 9°C (48.2°F) and max 14.7°C (58.5°F).Temperature
Graffham indicates an average high-temperature of a mild 14.7°C (58.5°F) in May, showing minor variation from April's 12.3°C (54.1°F). Nighttime temperatures in Graffham consistently average a frosty 9°C (48.2°F) during May.Humidity
The average relative humidity in May is 81%.Rainfall
In Graffham, during May, the rain falls for 14.1 days and regularly aggregates up to 30mm (1.18") of precipitation. In Graffham, United Kingdom, during the entire year, the rain falls for 183.3 days and collects up to 504mm (19.84") of precipitation.Snowfall
In Graffham, snow does not fall in March through October.Daylight
The average length of the day in May in Graffham, United Kingdom, is 15h and 34min.On the first day of May, sunrise is at 5:34 am and sunset at 8:24 pm. On the last day of the month, sunrise is at 4:54 am and sunset at 9:06 pm BST.
Sunshine
In May, the average sunshine in Graffham is 8.7h.UV index
In Graffham, the average daily maximum UV index in May is 4. A UV Index reading of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV radiation for the average person.Note: The maximum daily UV index of 4 in May converts into the following recommendations:
Take precautions - Protection against sunburn is recommended. Around midday, solar radiation is most harmful; hence, exposure should be limited. During bright days, sunglasses that offer UVA and UVB defense are recommended.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in May
Graffham, United Kingdom
- Average high temperature in May: 14.7°C
The warmest month (with the highest average high temperature) is August (19.5°C).
The month with the lowest average high temperature is February (7.7°C).
- Average low temperature in May: 9°C
The month with the highest average low temperature is August (14.6°C).
The coldest month (with the lowest average low temperature) is February (4.3°C).
Average pressure in May
Graffham, United Kingdom
- Average pressure in May: 1017mbar
The month with the highest atmospheric pressure is September (1017.3mbar).
The month with the lowest atmospheric pressure is November (1010.9mbar).
Average wind speed in May
Graffham, United Kingdom
- Average wind speed in May: 17.2km/h
The windiest month (with the highest average wind speed) is December (24.8km/h).
The calmest month (with the lowest average wind speed) is July (16.9km/h).
Average humidity in May
Graffham, United Kingdom
- Average humidity in May: 81%
The months with the highest relative humidity are January and December (84%).
The month with the lowest relative humidity is September (79%).
Average rainfall in May
Graffham, United Kingdom
- Average rainfall in May: 30mm
The wettest month (with the highest rainfall) is December (64mm).
The driest month (with the least rainfall) is April (24mm).
Average rainfall days in May
Graffham, United Kingdom
- Average rainfall days in May: 14.1 days
The month with the highest number of rainy days is November (18.8 days).
The month with the least rainy days is September (12.6 days).
Average snowfall in May
Graffham, United Kingdom
- Average snowfall in May: 0mm
The month with the highest snowfall is January (7mm).
The months with the least snowfall are March, April, May, June, July, August, September and October (0mm).
Average snowfall days in May
Graffham, United Kingdom
- Average snowfall days in May: 0 days
The months with the highest number of snowfall days are January and February (1.8 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
Graffham, United Kingdom
- Average daylight in May: 15h and 36min
The month with the longest days is June (Average daylight: 16h and 30min).
The month with the shortest days is December (Average daylight: 8h and 0min).
- Average sunshine in May: 8h and 42min
The month with the most sunshine is July (Average sunshine: 9h and 24min).
The month with the least sunshine is February (Average sunshine: 4h and 6min).
Average sunshine days in May
Graffham, United Kingdom
- Average sunshine days in May: 12.8 days
The month with the most sunshine days is March (14.3 days).
The month with the least sunshine days is November (8.3 days).
Average UV index in May
Graffham, United Kingdom
- Average UV index in May: 4
The months with the highest UV index are June and July (UV index 5).
The months with the lowest UV index are January and February (UV index 2).
Average cloud cover in May
Graffham, United Kingdom
- Average cloud cover in May: 43
The month with the most cloud cover is November (Cloud cover 58).
The month with the least cloud cover is July (Cloud cover 39).
Average visibility in May
Graffham, 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).
