September weather forecastCoulderton, United Kingdom
September
Weather in September
The first month of the autumn, September, is also a moderate month in Coulderton, United Kingdom, with an average temperature varying between 14.7°C (58.5°F) and 11.2°C (52.2°F).Temperature
September's advent presents an average high-temperature of a mild 14.7°C (58.5°F), indicating a slight variation from the conditions of the previous month. Coulderton, in September, registers a nighttime average temperature of 11.2°C (52.2°F).Humidity
The average relative humidity in September is 85%.Rainfall
In September, the rain falls for 16 days. Throughout September, 41mm (1.61") of precipitation is accumulated. Throughout the year, in Coulderton, there are 210 rainfall days, and 519mm (20.43") of precipitation is accumulated.Snowfall
In Coulderton, snow does not fall in May through November.Daylight
In September, the average length of the day is 12h and 42min.On the first day of September, sunrise is at 6:22 am and sunset at 8:05 pm. On the last day of the month, sunrise is at 7:15 am and sunset at 6:52 pm BST.
Sunshine
In September, the average sunshine is 5.9h.UV index
May through September, with an average maximum UV index of 4, are months with the highest UV index. A UV Index reading of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV rays for ordinary individuals.Note: In September, the average maximum UV index of 4 translates into the following recommendations:
Take necessary precautions - Defending against sun damage is advocated. The best time to avoid the Sun's harmful UV radiation is during midday when it's most potent. On sunny days, it's ideal to wear sunglasses that filter out UVA and UVB rays.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Coulderton, United Kingdom
- Average high temperature in September: 14.7°C
The warmest month (with the highest average high temperature) is July (16.3°C).
The months with the lowest average high temperature are January and February (6.4°C).
- Average low temperature in September: 11.2°C
The month with the highest average low temperature is August (12.6°C).
The coldest month (with the lowest average low temperature) is February (3.6°C).
Average pressure in September
Coulderton, United Kingdom
- Average pressure in September: 1014.6mbar
The month with the highest atmospheric pressure is May (1015.9mbar).
The month with the lowest atmospheric pressure is November (1008mbar).
Average wind speed in September
Coulderton, United Kingdom
- Average wind speed in September: 19.9km/h
The windiest month (with the highest average wind speed) is December (27.1km/h).
The calmest month (with the lowest average wind speed) is June (15.5km/h).
Average humidity in September
Coulderton, United Kingdom
- Average humidity in September: 85%
The months with the highest relative humidity are July and August (86%).
The month with the lowest relative humidity is April (82%).
Average rainfall in September
Coulderton, United Kingdom
- Average rainfall in September: 41mm
The wettest month (with the highest rainfall) is August (60mm).
The driest month (with the least rainfall) is April (22mm).
Average rainfall days in September
Coulderton, United Kingdom
- Average rainfall days in September: 16 days
The month with the highest number of rainy days is December (20.9 days).
The month with the least rainy days is April (14.4 days).
Average snowfall in September
Coulderton, United Kingdom
- Average snowfall in September: 0mm
The month with the highest snowfall is January (24mm).
The months with the least snowfall are May, June, July, August, September, October and November (0mm).
Average snowfall days in September
Coulderton, United Kingdom
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (3.4 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
Coulderton, United Kingdom
- Average daylight in September: 12h and 42min
The month with the longest days is June (Average daylight: 17h and 12min).
The month with the shortest days is December (Average daylight: 7h and 24min).
- Average sunshine in September: 5h and 54min
The month with the most sunshine is May (Average sunshine: 7h and 30min).
The month with the least sunshine is January (Average sunshine: 3h and 12min).
Average sunshine days in September
Coulderton, United Kingdom
- Average sunshine days in September: 10.4 days
The month with the most sunshine days is April (13.8 days).
The month with the least sunshine days is December (6.9 days).
Average UV index in September
Coulderton, 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, March, November and December (UV index 2).
Average cloud cover in September
Coulderton, United Kingdom
- Average cloud cover in September: 59
The month with the most cloud cover is January (Cloud cover 68).
The months with the least cloud cover are April and May (Cloud cover 51).
Average visibility in September
Coulderton, United Kingdom
- Average visibility in September: 9km
The month with the highest visibility is October (10km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, November and December (9km).
