August weather forecastGrateley, United Kingdom
August
Weather in August
The last month of the summer, August, is another pleasant month in Grateley, United Kingdom, with an average temperature varying between 20.5°C (68.9°F) and 12.6°C (54.7°F).Temperature
August's arrival brings an average high-temperature of a still agreeable 20.5°C (68.9°F), slightly deviating from July's 21°C (69.8°F). Grateley experiences a steady low-temperature of 12.6°C (54.7°F) throughout August.Humidity
In Grateley, United Kingdom, the average relative humidity in August is 80%.Rainfall
In August, in Grateley, the rain falls for 14.5 days. Throughout August, 36mm (1.42") of precipitation is accumulated. In Grateley, during the entire year, the rain falls for 164.5 days and collects up to 403mm (15.87") of precipitation.Snowfall
April through October are months without snowfall in Grateley.Daylight
The average length of the day in August is 14h and 31min.On the first day of the month, sunrise is at 5:32 am and sunset at 8:53 pm. On the last day of August, in Grateley, sunrise is at 6:18 am and sunset at 7:54 pm BST.
Sunshine
In Grateley, the average sunshine in August is 7.5h.UV index
In August, the average daily maximum UV index in Grateley, United Kingdom, is 4. A UV Index value of 3 to 5 symbolizes a moderate health risk from unprotected exposure to Sun's UV rays for average individuals.Note: The UV index of 4 in August translates into these instructions:
Put precautions into practice - Protective measures against sun-induced damage are advised. Avoiding the Sun during its peak radiation time around midday is a healthy practice. For minimizing sun-related eye damage, always choose sunglasses with UVA and UVB coverage.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in August
Grateley, United Kingdom
- Average high temperature in August: 20.5°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 August: 12.6°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 August
Grateley, United Kingdom
- Average pressure in August: 1015mbar
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 August
Grateley, United Kingdom
- Average wind speed in August: 12.9km/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 August
Grateley, United Kingdom
- Average humidity in August: 80%
The month with the highest relative humidity is December (90%).
The month with the lowest relative humidity is July (79%).
Average rainfall in August
Grateley, United Kingdom
- Average rainfall in August: 36mm
The wettest month (with the highest rainfall) is December (51mm).
The driest month (with the least rainfall) is April (22mm).
Average rainfall days in August
Grateley, United Kingdom
- Average rainfall days in August: 14.5 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 August
Grateley, United Kingdom
- Average snowfall in August: 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 August
Grateley, United Kingdom
- Average snowfall days in August: 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 August /
Average sunshine in August
Grateley, United Kingdom
- Average daylight in August: 14h and 30min
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 August: 7h and 30min
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 August
Grateley, United Kingdom
- Average sunshine days in August: 13.3 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 August
Grateley, United Kingdom
- Average UV index in August: 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 August
Grateley, United Kingdom
- Average cloud cover in August: 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 August
Grateley, United Kingdom
- Average visibility in August: 8km
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).
