September weather forecastDown Ampney, United Kingdom
September
Weather in September
September, the first month of the autumn in Down Ampney, is still a comfortable month, with an average temperature varying between 9.7°C (49.5°F) and 17.7°C (63.9°F).Temperature
Upon the beginning of September, Down Ampney's high-temperatures register at a still enjoyable 17.7°C (63.9°F), closely mirroring the preceding month. An average low-temperature of 9.7°C (49.5°F) is noted during the month of September.Humidity
In September, the average relative humidity in Down Ampney, United Kingdom, is 84%.Rainfall
The months with the least rainfall in Down Ampney are April and September Rain falls for 12.1 days and accumulates 19mm (0.75") of rain.Snowfall
April through November are months without snowfall.Daylight
In September, the average length of the day is 12h and 38min.On the first day of September, sunrise is at 6:20 am and sunset at 7:53 pm. On the last day of the month, sunrise is at 7:07 am and sunset at 6:46 pm BST.
Sunshine
The average sunshine in September is 6.7h.UV index
May through September, with an average maximum UV index of 4, are months with the highest UV index in Down Ampney. A UV Index reading of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV rays for the average person.Note: A maximum daily UV index of 4 during September morphs into the following directions:
Preventative actions are necessary - Recommendations to ward off sunburn are given. UV radiation from the Sun is most dangerous during midday; take precautions and seek shade. Consider a wide-brim hat essential for effective sun defense covering your face, neck, and eyes.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Down Ampney, United Kingdom
- Average high temperature in September: 17.7°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 (6.3°C).
- Average low temperature in September: 9.7°C
The month with the highest average low temperature is August (12°C).
The coldest months (with the lowest average low temperature) are January and February (1.8°C).
Average pressure in September
Down Ampney, United Kingdom
- Average pressure in September: 1016.7mbar
The months with the highest atmospheric pressure are May and September (1016.7mbar).
The month with the lowest atmospheric pressure is November (1010.1mbar).
Average wind speed in September
Down Ampney, United Kingdom
- Average wind speed in September: 13.2km/h
The windiest month (with the highest average wind speed) is February (18.2km/h).
The calmest month (with the lowest average wind speed) is July (13km/h).
Average humidity in September
Down Ampney, 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
Down Ampney, United Kingdom
- Average rainfall in September: 19mm
The wettest month (with the highest rainfall) is November (40mm).
The driest months (with the least rainfall) are April and September (19mm).
Average rainfall days in September
Down Ampney, United Kingdom
- Average rainfall days in September: 12.1 days
The month with the highest number of rainy days is August (16.9 days).
The month with the least rainy days is February (11.8 days).
Average snowfall in September
Down Ampney, United Kingdom
- Average snowfall in September: 0mm
The month with the highest snowfall is January (14mm).
The months with the least snowfall are April, May, June, July, August, September, October and November (0mm).
Average snowfall days in September
Down Ampney, 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
Down Ampney, United Kingdom
- Average daylight in September: 12h and 36min
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 42min
The month with the most sunshine is July (Average sunshine: 7h and 30min).
The month with the least sunshine is February (Average sunshine: 3h and 36min).
Average sunshine days in September
Down Ampney, United Kingdom
- Average sunshine days in September: 14.4 days
The month with the most sunshine days is March (15.3 days).
The month with the least sunshine days is August (9.4 days).
Average UV index in September
Down Ampney, 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
Down Ampney, 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
Down Ampney, 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).
