September weather forecastChiswell, United Kingdom
September
Weather in September
September, the first month of the autumn in Chiswell, is still a comfortable month, with an average temperature varying between 14°C (57.2°F) and 16.8°C (62.2°F).Temperature
The average high-temperature during September is a still comfortable 16.8°C (62.2°F), almost matching the conditions of the preceding month. Chiswell encounters a small divergence from daytime high temperatures, averaging a low-temperature of 14°C (57.2°F) during September nights.Humidity
The months with the lowest humidity in Chiswell are February through April, September through December, with an average relative humidity of 81%.Rainfall
In Chiswell, in September, during 11.1 rainfall days, 29mm (1.14") of precipitation is typically accumulated. Throughout the year, in Chiswell, there are 167.3 rainfall days, and 471mm (18.54") of precipitation is accumulated.Snowfall
In Chiswell, snow does not fall in March through October and December.Daylight
In Chiswell, the average length of the day in September is 12h and 37min.On the first day of September, sunrise is at 6:24 am and sunset at 7:54 pm. On the last day of the month, sunrise is at 7:09 am and sunset at 6:49 pm BST.
Sunshine
In Chiswell, the average sunshine in September is 8.1h.UV index
In September, the average daily maximum UV index is 4. A UV Index of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV rays for ordinary individuals.Note: An average UV index of 4 in September transforms into this advice:
Adopt protective measures - Requirement to safeguard skin and eyes from harm exists. The solar radiation around mid-day is intense; avoid the Sun and stay safe. 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
Chiswell, United Kingdom
- Average high temperature in September: 16.8°C
The warmest month (with the highest average high temperature) is August (18.2°C).
The month with the lowest average high temperature is February (8.3°C).
- Average low temperature in September: 14°C
The month with the highest average low temperature is August (15.3°C).
The coldest month (with the lowest average low temperature) is February (5.8°C).
Average pressure in September
Chiswell, United Kingdom
- Average pressure in September: 1017.3mbar
The month with the highest atmospheric pressure is September (1017.3mbar).
The month with the lowest atmospheric pressure is November (1010.6mbar).
Average wind speed in September
Chiswell, United Kingdom
- Average wind speed in September: 22.8km/h
The windiest month (with the highest average wind speed) is December (30.1km/h).
The calmest month (with the lowest average wind speed) is July (19.5km/h).
Average humidity in September
Chiswell, United Kingdom
- Average humidity in September: 81%
The months with the highest relative humidity are June and July (83%).
The months with the lowest relative humidity are February, March, April, September, October, November and December (81%).
Average rainfall in September
Chiswell, United Kingdom
- Average rainfall in September: 29mm
The wettest month (with the highest rainfall) is November (58mm).
The driest month (with the least rainfall) is May (27mm).
Average rainfall days in September
Chiswell, United Kingdom
- Average rainfall days in September: 11.1 days
The month with the highest number of rainy days is November (17 days).
The month with the least rainy days is September (11.1 days).
Average snowfall in September
Chiswell, United Kingdom
- Average snowfall in September: 0mm
The month with the highest snowfall is February (2mm).
The months with the least snowfall are March, April, May, June, July, August, September, October and December (0mm).
Average snowfall days in September
Chiswell, United Kingdom
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (1.2 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
Chiswell, United Kingdom
- Average daylight in September: 12h and 36min
The month with the longest days is June (Average daylight: 16h and 24min).
The month with the shortest days is December (Average daylight: 8h and 6min).
- Average sunshine in September: 8h and 6min
The month with the most sunshine is July (Average sunshine: 9h and 24min).
The months with the least sunshine are January, February and November (Average sunshine: 4h and 6min).
Average sunshine days in September
Chiswell, United Kingdom
- Average sunshine days in September: 15.6 days
The month with the most sunshine days is September (15.6 days).
The month with the least sunshine days is November (10.1 days).
Average UV index in September
Chiswell, United Kingdom
- Average UV index in September: 4
The months with the highest UV index are July and August (UV index 5).
The months with the lowest UV index are January and February (UV index 2).
Average cloud cover in September
Chiswell, United Kingdom
- Average cloud cover in September: 43
The month with the most cloud cover is December (Cloud cover 59).
The month with the least cloud cover is July (Cloud cover 40).
Average visibility in September
Chiswell, United Kingdom
- Average visibility in September: 10km
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
