Contents
- Weather in September
- Frequently asked questions
- Average temperature in September
- Average pressure in September
- Average wind speed in September
- Average humidity in September
- Average rainfall in September
- Average rainfall days in September
- Average snowfall in September
- Average snowfall days in September
- Average daylight in September
- Average sunshine in September
- Average sunshine days in September
- Average UV index in September
- Average cloud cover in September
- Average visibility in September
Weather in September
Temperature
September's advent denotes a minor fluctuation in the average high-temperature to a still refreshing 16.8°C (62.2°F) from August's 19.3°C (66.7°F). Throughout the month of September, the nighttime temperature in Chesterfield dips to an average of 9.6°C (49.3°F).Humidity
The average relative humidity in September is 82%.Rainfall
In Chesterfield, in September, during 9 rainfall days, 19mm (0.75") of precipitation is typically accumulated. Throughout the year, in Chesterfield, there are 144 rainfall days, and 292mm (11.5") of precipitation is accumulated.Snowfall
May through October are months without snowfall in Chesterfield.Daylight
The average length of the day in September is 12h and 41min.On the first day of the month, sunrise is at 6:16 am and sunset at 7:54 pm. On the last day of September, in Chesterfield, sunrise is at 7:06 am and sunset at 6:44 pm BST.
Sunshine
The average sunshine in September in Chesterfield is 6.9h.UV index
The average daily maximum UV index in September in Chesterfield is 3. A UV Index reading of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV radiation for average individuals.Note: In September, the maximum UV index of 3 suggests these recommendations:
Ensure safety - Sun damage prevention is strongly urged. The Sun's radiation is especially intense around midday; try to stay in shade during this period. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects.
Frequently asked questions
What are September temperatures in Chesterfield?
What is the average humidity in September in Chesterfield?
How many days does it rain in September in Chesterfield?
When it does not snow in Chesterfield?
What is the average length of the day in September in Chesterfield?
When is the sunrise / sunset in September in Chesterfield?
How long on average sun shines in September in Chesterfield?
What is the UV index intensity in September in Chesterfield?
Average temperature in September
Chesterfield, United Kingdom
- Average high temperature in September: 16.8°C
The warmest month (with the highest average high temperature) is July (19.7°C).
The month with the lowest average high temperature is January (5.6°C).
- Average low temperature in September: 9.6°C
The month with the highest average low temperature is August (11.8°C).
The coldest months (with the lowest average low temperature) are January and February (1.3°C).
Average pressure in September
Chesterfield, United Kingdom
- Average pressure in September: 1015.8mbar
The month with the highest atmospheric pressure is May (1016.3mbar).
The month with the lowest atmospheric pressure is November (1009.3mbar).
Average wind speed in September
Chesterfield, 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 (13km/h).
Average humidity in September
Chesterfield, United Kingdom
- Average humidity in September: 82%
The month with the highest relative humidity is December (90%).
The month with the lowest relative humidity is August (80%).
Average rainfall in September
Chesterfield, United Kingdom
- Average rainfall in September: 19mm
The wettest month (with the highest rainfall) is June (33mm).
The driest month (with the least rainfall) is April (14mm).
Average rainfall days in September
Chesterfield, United Kingdom
- Average rainfall days in September: 9 days
The month with the highest number of rainy days is July (16.4 days).
The month with the least rainy days is September (9 days).
Average snowfall in September
Chesterfield, United Kingdom
- Average snowfall in September: 0mm
The month with the highest snowfall is February (22mm).
The months with the least snowfall are May, June, July, August, September and October (0mm).
Average snowfall days in September
Chesterfield, United Kingdom
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (4.1 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
Chesterfield, United Kingdom
- Average daylight in September: 12h and 4min
The month with the longest days is June (Average daylight: 16h and 54min).
The month with the shortest days is December (Average daylight: 7h and 36min).
- Average sunshine in September: 6h and 5min
The months with the most sunshine are July and August (Average sunshine: 7h and 24min).
The month with the least sunshine is November (Average sunshine: 3h and 42min).
Average sunshine days in September
Chesterfield, United Kingdom
- Average sunshine days in September: 18.1 days
The month with the most sunshine days is September (18.1 days).
The month with the least sunshine days is June (10.8 days).
Average UV index in September
Chesterfield, United Kingdom
- Average UV index in September: 3
The months with the highest UV index are May, June, July and August (UV index 4).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in September
Chesterfield, United Kingdom
- Average cloud cover in September: 52
The month with the most cloud cover is November (Cloud cover 62).
The month with the least cloud cover is September (Cloud cover 52).
Average visibility in September
Chesterfield, United Kingdom
- Average visibility in September: 9km
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October and December (9km).
The month with the lowest visibility is November (8km).
Chesterfield, United Kingdom
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