September weather forecastFilton, United Kingdom
September
Weather in September
September, the first month of the autumn in Filton, is still a refreshing month, with an average temperature varying between 17.6°C (63.7°F) and 10.5°C (50.9°F).Temperature
September's presence records an average high-temperature of a still comfortable 17.6°C (63.7°F), closely mirroring August's climate. Throughout September nights, Filton registers an average low-temperature of 10.5°C (50.9°F).Humidity
The average relative humidity in September is 83%.Rainfall
September is the month with the least rainfall. Rain falls for 8.4 days and accumulates 11mm (0.43") of precipitation.Snowfall
In Filton, snow does not fall in April through November.Daylight
The average length of the day in September is 12h and 38min.On the first day of September in Filton, sunrise is at 6:23 am and sunset at 7:56 pm. On the last day of the month, sunrise is at 7:10 am and sunset at 6:49 pm BST.
Sunshine
In Filton, the average sunshine in September is 6.9h.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 medium health hazard from exposure to the Sun's UV rays for the ordinary person.Note: In September, a regular UV index of 4 translates into these guidelines:
Exercise caution. Those with pale skin may experience burns in less than half an hour. Given the potency of the midday Sun's UV radiation, one should avoid prolonged exposure. For excellent sun protection for the eyes, ears, face, and neck, consider a wide-brim hat.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Filton, United Kingdom
- Average high temperature in September: 17.6°C
The warmest month (with the highest average high temperature) is July (20.2°C).
The month with the lowest average high temperature is January (7.2°C).
- Average low temperature in September: 10.5°C
The month with the highest average low temperature is August (12.7°C).
The coldest months (with the lowest average low temperature) are January and February (2.8°C).
Average pressure in September
Filton, United Kingdom
- Average pressure in September: 1016.8mbar
The month with the highest atmospheric pressure is September (1016.8mbar).
The month with the lowest atmospheric pressure is November (1010.1mbar).
Average wind speed in September
Filton, United Kingdom
- Average wind speed in September: 13.8km/h
The windiest month (with the highest average wind speed) is February (19km/h).
The calmest month (with the lowest average wind speed) is July (13.4km/h).
Average humidity in September
Filton, United Kingdom
- Average humidity in September: 83%
The months with the highest relative humidity are January, November and December (88%).
The month with the lowest relative humidity is July (81%).
Average rainfall in September
Filton, United Kingdom
- Average rainfall in September: 11mm
The wettest month (with the highest rainfall) is November (22mm).
The driest month (with the least rainfall) is September (11mm).
Average rainfall days in September
Filton, United Kingdom
- Average rainfall days in September: 8.4 days
The months with the highest number of rainy days are July and August (12.1 days).
The month with the least rainy days is October (8.2 days).
Average snowfall in September
Filton, United Kingdom
- Average snowfall in September: 0mm
The month with the highest snowfall is February (4mm).
The months with the least snowfall are April, May, June, July, August, September, October and November (0mm).
Average snowfall days in September
Filton, United Kingdom
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (2.5 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
Filton, 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 54min
The month with the most sunshine is July (Average sunshine: 7h and 48min).
The months with the least sunshine are February and November (Average sunshine: 3h and 48min).
Average sunshine days in September
Filton, United Kingdom
- Average sunshine days in September: 18.4 days
The month with the most sunshine days is October (18.5 days).
The month with the least sunshine days is July (13.7 days).
Average UV index in September
Filton, 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
Filton, United Kingdom
- Average cloud cover in September: 53
The month with the most cloud cover is November (Cloud cover 63).
The months with the least cloud cover are April and May (Cloud cover 51).
Average visibility in September
Filton, United Kingdom
- Average visibility in September: 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).
