September weather forecastChippenham, United Kingdom
September weather for Chippenham, United Kingdom: In Chippenham, United Kingdom, in September, during 11 rainfall days, 26mm (1.02") of precipitation is typically accumulated. In Chippenham, United Kingdom, in September, during 11 rainfall days, 26mm (1.02") of precipitation is typically accumulated.
September
Weather in September
September, the first month of the autumn in Chippenham, is still a comfortable month, with an average temperature fluctuating between 9.8°C (49.6°F) and 17.8°C (64°F).Temperature
September's arrival brings an average high-temperature of a still comfortable 17.8°C (64°F), slightly deviating from August's 19.8°C (67.6°F). Throughout September, Chippenham registers a consistent average low-temperature of 9.8°C (49.6°F).Humidity
In September, the average relative humidity is 84%.Rainfall
In Chippenham, United Kingdom, in September, during 11 rainfall days, 26mm (1.02") of precipitation is typically accumulated. In Chippenham, during the entire year, the rain falls for 168.4 days and collects up to 433mm (17.05") of precipitation.Snowfall
April through November are months without snowfall in Chippenham.Daylight
In Chippenham, the average length of the day in September is 12h and 38min.On the first day of September in Chippenham, sunrise is at 6:22 am and sunset at 7:54 pm. On the last day of the month, sunrise is at 7:08 am and sunset at 6:48 pm BST.
Sunshine
In Chippenham, the average sunshine in September is 6.6h.UV index
The months with the highest UV index in Chippenham are May through September, with an average maximum UV index of 4. A UV Index of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV rays for the average person.Note: In September, the maximum UV index of 4 translates into these guidelines:
Undertake protective steps - Obligation to safeguard skin and eyes from harm is in place. Limiting exposure to the direct Sun during midday hours can help prevent harmful UV radiation effects. Always opt for UVA and UVB-resistant sunglasses on radiant days.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Chippenham, 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
Chippenham, 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
Chippenham, 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
Chippenham, 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
Chippenham, 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
Chippenham, 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
Chippenham, 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
Chippenham, 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
Chippenham, United Kingdom
- Average daylight in September: 12h and 36min
The month with the longest days is June (Average daylight: 16h and 30min).
The month with the shortest days is December (Average daylight: 7h and 54min).
- Average sunshine in September: 6h and 36min
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
Chippenham, 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
Chippenham, 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
Chippenham, 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
Chippenham, 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).
