Contents
- Weather in September
- Frequently asked questions
- Average temperature in September
- Average pressure in September
- Average wind speed in September
- Average humidity in September
- Average rainfall in September
- Average rainfall days in September
- Average snowfall in September
- Average snowfall days in September
- Average daylight in September
- Average sunshine in September
- Average sunshine days in September
- Average UV index in September
- Average cloud cover in September
- Average visibility in September
September
Weather in September
Temperature
The arrival of September marks a slight shift to an average high-temperature of a still enjoyable 17.8°C (64°F) from August's 19.8°C (67.6°F). An average low-temperature of 9.8°C (49.6°F) is noted during the month of September.Humidity
In Castle Combe, the average relative humidity in September is 84%.Rainfall
In Castle Combe, in September, it is raining for 11 days, with typically 26mm (1.02") of accumulated precipitation. Throughout the year, there are 168.4 rainfall days, and 433mm (17.05") of precipitation is accumulated.Snowfall
In Castle Combe, snow does not fall in April through November.Daylight
In September, the average length of the day is 12h and 38min.On the first day of the month, sunrise is at 6:22 am and sunset at 7:54 pm. On the last day of September, sunrise is at 7:08 am and sunset at 6:48 pm BST.
Sunshine
In Castle Combe, the average sunshine in September is 6.6h.UV index
May through September, with an average maximum UV index of 4, are months with the highest UV index. A UV Index estimate of 3 to 5 represents a moderate health risk from unprotected exposure to Sun's UV rays for the ordinary person.Note: In September, the maximum UV index of 4 translates into these guidelines:
Be careful. Light complexion individuals might get burns in fewer than 30 minutes. Direct exposure to the Sun's intense radiation around midday should be avoided for health reasons. Protect your eyes, ears, face, and neck from the Sun by wearing a wide-brimmed hat.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the usual temperature for Castle Combe in September?
What is the average humidity in September?
How many days does it rain in September?
When it does not snow?
How many hours of daylight does Castle Combe have in September?
When is the sunrise / sunset in September?
How many hours of sunshine does Castle Combe have in September?
What are the months with the highest UV index?
What is the UV index reading in September?
Average temperature in September
Castle Combe, United Kingdom
- Average high temperature in September: 17.8°C
The warmest month (with the highest average high temperature) is July (20.5°C).
The month with the lowest average high temperature is January (6.8°C).
- Average low temperature in September: 9.8°C
The month with the highest average low temperature is August (12°C).
The coldest month (with the lowest average low temperature) is February (1.9°C).
Average pressure in September
Castle Combe, United Kingdom
- Average pressure in September: 1016.8mbar
The months with the highest atmospheric pressure are May and September (1016.8mbar).
The month with the lowest atmospheric pressure is November (1010.2mbar).
Average wind speed in September
Castle Combe, United Kingdom
- Average wind speed in September: 13.1km/h
The windiest month (with the highest average wind speed) is February (18km/h).
The calmest month (with the lowest average wind speed) is July (12.9km/h).
Average humidity in September
Castle Combe, United Kingdom
- Average humidity in September: 84%
The month with the highest relative humidity is December (91%).
The months with the lowest relative humidity are July and August (82%).
Average rainfall in September
Castle Combe, United Kingdom
- Average rainfall in September: 26mm
The wettest month (with the highest rainfall) is December (54mm).
The driest month (with the least rainfall) is April (25mm).
Average rainfall days in September
Castle Combe, United Kingdom
- Average rainfall days in September: 11 days
The month with the highest number of rainy days is November (16.5 days).
The month with the least rainy days is September (11 days).
Average snowfall in September
Castle Combe, United Kingdom
- Average snowfall in September: 0mm
The month with the highest snowfall is January (18mm).
The months with the least snowfall are April, May, June, July, August, September, October and November (0mm).
Average snowfall days in September
Castle Combe, United Kingdom
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (2.9 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in September /
Average sunshine in September
Castle Combe, United Kingdom
- Average daylight in September: 12h 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 September: 6h and 4min
The month with the most sunshine is July (Average sunshine: 7h and 30min).
The month with the least sunshine is November (Average sunshine: 3h and 36min).
Average sunshine days in September
Castle Combe, United Kingdom
- Average sunshine days in September: 15.8 days
The month with the most sunshine days is September (15.8 days).
The month with the least sunshine days is November (10.9 days).
Average UV index in September
Castle Combe, United Kingdom
- Average UV index in September: 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 September
Castle Combe, United Kingdom
- Average cloud cover in September: 54
The month with the most cloud cover is November (Cloud cover 65).
The month with the least cloud cover is April (Cloud cover 53).
Average visibility in September
Castle Combe, United Kingdom
- Average visibility in September: 8km
The months with the highest visibility are February and March (9km).
The months with the lowest visibility are January, April, May, June, July, August, September, October, November and December (8km).
