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 sea temperature 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
Weather in August
Temperature
August's arrival brings an average high-temperature of a comfortable 19.4°C (66.9°F), slightly deviating from July's 20°C (68°F). In Chepstow, the average low-temperature during the month of August is a fresh 12.3°C (54.1°F).Humidity
In Chepstow, the average relative humidity in August is 83%.Rainfall
In Chepstow, in August, during 13.9 rainfall days, 29mm (1.14") of precipitation is typically accumulated. Throughout the year, in Chepstow, there are 136.5 rainfall days, and 268mm (10.55") of precipitation is accumulated.Snowfall
April through November are months without snowfall.Sea temperature
The month with the warmest seawater is August, with an average sea temperature of 16.6°C (61.9°F).Note: Most people find it challenging to enjoy swimming in water that is 16.6°C (61.9°F). As water temperature falls below 21°C (69.8°F), controlling breathing grows increasingly difficult.
Daylight
The average length of the day in August is 14h and 34min.On the first day of the month, sunrise is at 5:34 am and sunset at 8:59 pm. On the last day of August, in Chepstow, sunrise is at 6:22 am and sunset at 7:59 pm BST.
Sunshine
The average sunshine in August in Chepstow is 7.5h.UV index
The months with the highest UV index are May through September, with an average maximum UV index of 4. A UV Index estimate of 3 to 5 represents a moderate threat to health from unsafe exposure to UV radiation for average individuals.Note: In August, a regular UV index of 4 translates into these guidelines:
Take care. Persons with lighter skin might suffer burns in less than 30 minutes. The Sun's most harmful UV rays are emitted around midday; avoid staying outdoors for long during this time. Shield yourself from the harmful effects of UV radiation with sun-protective attire, a hat, and quality sunglasses.
Frequently asked questions
What are August temperatures in Chepstow?
What is the average humidity in August in Chepstow?
How much does it rain in Chepstow in August?
When it does not snow in Chepstow?
When is the sea warmest in Chepstow?
What is the sea temperature in August in Chepstow?
How many hours of daylight does Chepstow have in August?
When is the sunrise / sunset in August in Chepstow?
How many hours of sunshine does Chepstow have in August?
What are the months with the highest UV index in Chepstow?
What is the UV index intensity in August in Chepstow?
Average temperature in August
Chepstow, United Kingdom
- Average high temperature in August: 19.4°C
The warmest month (with the highest average high temperature) is July (20°C).
The month with the lowest average high temperature is January (6.9°C).
- Average low temperature in August: 12.3°C
The month with the highest average low temperature is August (12.3°C).
The coldest month (with the lowest average low temperature) is January (2.5°C).
Average pressure in August
Chepstow, United Kingdom
- Average pressure in August: 1014.5mbar
The months with the highest atmospheric pressure are May and September (1016.7mbar).
The month with the lowest atmospheric pressure is November (1010mbar).
Average wind speed in August
Chepstow, United Kingdom
- Average wind speed in August: 13.9km/h
The windiest month (with the highest average wind speed) is February (19.1km/h).
The calmest month (with the lowest average wind speed) is July (13.2km/h).
Average humidity in August
Chepstow, United Kingdom
- Average humidity in August: 83%
The month with the highest relative humidity is December (89%).
The months with the lowest relative humidity are May and July (82%).
Average rainfall in August
Chepstow, United Kingdom
- Average rainfall in August: 29mm
The wettest month (with the highest rainfall) is November (33mm).
The driest months (with the least rainfall) are January, April and September (16mm).
Average rainfall days in August
Chepstow, United Kingdom
- Average rainfall days in August: 13.9 days
The month with the highest number of rainy days is August (13.9 days).
The month with the least rainy days is December (9.2 days).
Average snowfall in August
Chepstow, United Kingdom
- Average snowfall in August: 0mm
The month with the highest snowfall is February (12mm).
The months with the least snowfall are April, May, June, July, August, September, October and November (0mm).
Average snowfall days in August
Chepstow, United Kingdom
- Average snowfall days in August: 0 days
The month with the highest number of snowfall days is February (2.4 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average sea temperature in August
Chepstow, United Kingdom
- Average sea temperature in August: 16.6°C
The best month for swimming (with the highest average sea temperature) is August (16.6°C).
The coldest month (with the lowest average sea temperature) is March (8.3°C).
Average daylight in August /
Average sunshine in August
Chepstow, United Kingdom
- Average daylight in August: 14h and 4min
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 August: 7h and 3min
The month with the most sunshine is July (Average sunshine: 8h and 0min).
The month with the least sunshine is November (Average sunshine: 3h and 54min).
Average sunshine days in August
Chepstow, United Kingdom
- Average sunshine days in August: 12.9 days
The month with the most sunshine days is December (19.5 days).
The month with the least sunshine days is July (12.8 days).
Average UV index in August
Chepstow, United Kingdom
- Average UV index in August: 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 August
Chepstow, United Kingdom
- Average cloud cover in August: 53
The month with the most cloud cover is November (Cloud cover 61).
The month with the least cloud cover is April (Cloud cover 49).
Average visibility in August
Chepstow, United Kingdom
- Average visibility in August: 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).
Chepstow, United Kingdom
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