Contents
- Weather in August
- Frequently asked questions
- Average temperature in August
- Average pressure in August
- Average wind speed in August
- Average humidity in August
- Average rainfall in August
- Average rainfall days in August
- Average snowfall in August
- Average snowfall days in August
- Average daylight in August
- Average sunshine in August
- Average sunshine days in August
- Average UV index in August
- Average cloud cover in August
- Average visibility in August
August
Weather in August
Temperature
The onset of August notes an average high-temperature of a still pleasant 21.7°C (71.1°F), subtly shifted from July's 21.9°C (71.4°F). August's nights in Swanley observe an average temperature of 13.8°C (56.8°F).Humidity
July and August, with an average relative humidity of 74%, are the least humid months in Swanley.Rainfall
In August, the rain falls for 12.8 days. Throughout August, 34mm (1.34") of precipitation is accumulated. In Swanley, during the entire year, the rain falls for 151.6 days and collects up to 342mm (13.46") of precipitation.Snowfall
In Swanley, snow does not fall in May through October.Daylight
The average length of the day in August in Swanley is 14h and 32min.On the first day of the month, sunrise is at 5:24 am and sunset at 8:46 pm. On the last day of August, in Swanley, sunrise is at 6:11 am and sunset at 7:47 pm BST.
Sunshine
The months with the most sunshine are July and August, with an average of 8.3h of sunshine.UV index
In August, the average daily maximum UV index is 4. A UV Index of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV radiation for the average person.Note: A daily high UV index of 4 in August leads to these guidelines:
Take measures. Individuals with light skin might experience burns in under 30 minutes. Direct Sun exposure should be minimized especially during midday when radiation is most intense. To best shield against UV radiation, choose sun-safe garments and dependable sunglasses.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average August temperature in Swanley?
What are the least humid months in Swanley?
What is the average humidity in August in Swanley?
How many days does it rain in August in Swanley?
When it does not snow in Swanley?
How many hours of daylight does Swanley have in August?
What time are sunrise and sunset in August in Swanley?
What are the months with the most sunshine in Swanley?
How long on average sun shines in August in Swanley?
How high is the UV index in August in Swanley?
Average temperature in August
Swanley, United Kingdom
- Average high temperature in August: 21.7°C
The warmest month (with the highest average high temperature) is July (21.9°C).
The month with the lowest average high temperature is January (6.7°C).
- Average low temperature in August: 13.8°C
The month with the highest average low temperature is August (13.8°C).
The coldest month (with the lowest average low temperature) is January (2.4°C).
Average pressure in August
Swanley, 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 (1010.7mbar).
Average wind speed in August
Swanley, United Kingdom
- Average wind speed in August: 13km/h
The windiest month (with the highest average wind speed) is February (17.7km/h).
The calmest month (with the lowest average wind speed) is September (12.9km/h).
Average humidity in August
Swanley, United Kingdom
- Average humidity in August: 74%
The month with the highest relative humidity is December (89%).
The months with the lowest relative humidity are July and August (74%).
Average rainfall in August
Swanley, United Kingdom
- Average rainfall in August: 34mm
The wettest month (with the highest rainfall) is December (38mm).
The driest month (with the least rainfall) is April (18mm).
Average rainfall days in August
Swanley, United Kingdom
- Average rainfall days in August: 12.8 days
The month with the highest number of rainy days is July (15.5 days).
The month with the least rainy days is September (9.7 days).
Average snowfall in August
Swanley, United Kingdom
- Average snowfall in August: 0mm
The month with the highest snowfall is February (23mm).
The months with the least snowfall are May, June, July, August, September and October (0mm).
Average snowfall days in August
Swanley, United Kingdom
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is February (4.2 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
Swanley, United Kingdom
- Average daylight in August: 14h and 3min
The month with the longest days is June (Average daylight: 16h and 30min).
The month with the shortest days is December (Average daylight: 7h and 54min).
- Average sunshine in August: 8h and 2min
The months with the most sunshine are July and August (Average sunshine: 8h and 18min).
The month with the least sunshine is February (Average sunshine: 3h and 36min).
Average sunshine days in August
Swanley, United Kingdom
- Average sunshine days in August: 16.3 days
The month with the most sunshine days is September (17.5 days).
The month with the least sunshine days is February (12.8 days).
Average UV index in August
Swanley, 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, March, November and December (UV index 2).
Average cloud cover in August
Swanley, United Kingdom
- Average cloud cover in August: 47
The month with the most cloud cover is February (Cloud cover 61).
The months with the least cloud cover are August and September (Cloud cover 47).
Average visibility in August
Swanley, United Kingdom
- Average visibility in August: 9km
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October and December (9km).
The month with the lowest visibility is November (8km).
