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
The average high-temperature in May, at a comfortable 16°C (60.8°F), reveals a modest deviation from April's 13.5°C (56.3°F). Throughout May nights, Grateley registers an average low-temperature of 7.1°C (44.8°F).Humidity
In Grateley, the average relative humidity in May is 81%.Rainfall
In Grateley, in May, it is raining for 13.8 days, with typically 28mm (1.1") of accumulated precipitation. In Grateley, during the entire year, the rain falls for 164.5 days and collects up to 403mm (15.87") of precipitation.Snowfall
In Grateley, snow does not fall in April through October.Daylight
In May, the average length of the day is 15h and 35min.On the first day of the month, sunrise is at 5:37 am and sunset at 8:29 pm. On the last day of May, in Grateley, sunrise is at 4:56 am and sunset at 9:11 pm BST.
Sunshine
In Grateley, the average sunshine in May is 7.5h.UV index
The average daily maximum UV index in May is 4. A UV Index value of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV radiation for the ordinary person.Note: The maximum UV index of 4 during May leads to these instructions:
Undertake protective steps - Preventing sun damage is advised. Exposing oneself to the midday Sun can be harmful due to the strong UV radiation; limit your time outside. Shield yourself from the harmful effects of UV radiation with sun-protective attire, a hat, and quality sunglasses.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the temperatures in Grateley in May?
What is the average humidity in May in Grateley?
How many days does it rain in May in Grateley?
When it does not snow in Grateley?
What is the average length of the day in May in Grateley?
When are sunrise and sunset in May in Grateley?
How long on average sun shines in May in Grateley?
How high is the UV index in May in Grateley?
Average temperature in May
Grateley, United Kingdom
- Average high temperature in May: 16°C
The warmest month (with the highest average high temperature) is July (21°C).
The month with the lowest average high temperature is January (6.9°C).
- Average low temperature in May: 7.1°C
The month with the highest average low temperature is August (12.6°C).
The coldest months (with the lowest average low temperature) are January and February (2.3°C).
Average pressure in May
Grateley, United Kingdom
- Average pressure in May: 1016.9mbar
The month with the highest atmospheric pressure is September (1017mbar).
The month with the lowest atmospheric pressure is November (1010.5mbar).
Average wind speed in May
Grateley, United Kingdom
- Average wind speed in May: 13km/h
The windiest month (with the highest average wind speed) is February (17.2km/h).
The calmest month (with the lowest average wind speed) is July (12.5km/h).
Average humidity in May
Grateley, United Kingdom
- Average humidity in May: 81%
The month with the highest relative humidity is December (90%).
The month with the lowest relative humidity is July (79%).
Average rainfall in May
Grateley, United Kingdom
- Average rainfall in May: 28mm
The wettest month (with the highest rainfall) is December (51mm).
The driest month (with the least rainfall) is April (22mm).
Average rainfall days in May
Grateley, United Kingdom
- Average rainfall days in May: 13.8 days
The month with the highest number of rainy days is July (16.2 days).
The month with the least rainy days is September (10.9 days).
Average snowfall in May
Grateley, United Kingdom
- Average snowfall in May: 0mm
The month with the highest snowfall is January (16mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).
Average snowfall days in May
Grateley, United Kingdom
- Average snowfall days in May: 0 days
The month with the highest number of snowfall days is February (2.6 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
Grateley, United Kingdom
- Average daylight in May: 15h and 4min
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: 7h and 3min
The month with the most sunshine is July (Average sunshine: 8h and 0min).
The month with the least sunshine is February (Average sunshine: 3h and 48min).
Average sunshine days in May
Grateley, United Kingdom
- Average sunshine days in May: 14.4 days
The month with the most sunshine days is September (15.8 days).
The months with the least sunshine days are February and November (12.2 days).
Average UV index in May
Grateley, 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, February, November and December (UV index 2).
Average cloud cover in May
Grateley, United Kingdom
- Average cloud cover in May: 52
The month with the most cloud cover is November (Cloud cover 62).
The months with the least cloud cover are April, July and September (Cloud cover 50).
Average visibility in May
Grateley, United Kingdom
- Average visibility in May: 9km
The months with the highest visibility are February, March, May, June and July (9km).
The months with the lowest visibility are January, April, August, September, October, November and December (8km).
Grateley, United Kingdom
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