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
September
Weather in September
Temperature
The onset of September brings an average high-temperature of a refreshing 18.8°C (65.8°F), nearly matching the August temperature. Chafford Hundred experiences a mean temperature of 11.8°C (53.2°F) during September nights.Humidity
In September, the average relative humidity is 77%.Rainfall
In Chafford Hundred, United Kingdom, in September, during 10.2 rainfall days, 24mm (0.94") of precipitation is typically accumulated. Throughout the year, in Chafford Hundred, there are 160.1 rainfall days, and 378mm (14.88") of precipitation is accumulated.Snowfall
In Chafford Hundred, United Kingdom, snow does not fall in May through October.Daylight
The average length of the day in September is 12h and 38min.On the first day of the month, sunrise is at 6:12 am and sunset at 7:44 pm. On the last day of September, in Chafford Hundred, sunrise is at 6:58 am and sunset at 6:38 pm BST.
Sunshine
The average sunshine in September is 7.5h.UV index
In September, the average daily maximum UV index in Chafford Hundred is 4. A UV Index value of 3 to 5 symbolizes a medium vulnerability from unprotected exposure to Sun's UV rays for average individuals.Note: The average daily UV index of 4 in September transforms into the following instructions:
Preventative actions are necessary - The mandate to avoid skin and eye damage is in place. To protect against the Sun's most potent rays, avoid direct exposure around midday. In the presence of strong sunlight, it's crucial to wear sunglasses that ward off UVA and UVB rays.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average September temperature in Chafford Hundred?
What is the average humidity in September in Chafford Hundred?
How many days does it rain in September in Chafford Hundred?
When it does not snow in Chafford Hundred?
What is the average length of the day in September in Chafford Hundred?
What time are sunrise and sunset in September in Chafford Hundred?
How long on average sun shines in September in Chafford Hundred?
How high is the UV index in September in Chafford Hundred?
Average temperature in September
Chafford Hundred, United Kingdom
- Average high temperature in September: 18.8°C
The warmest month (with the highest average high temperature) is July (22°C).
The month with the lowest average high temperature is January (6.7°C).
- Average low temperature in September: 11.8°C
The month with the highest average low temperature is August (14°C).
The coldest month (with the lowest average low temperature) is January (2.4°C).
Average pressure in September
Chafford Hundred, United Kingdom
- Average pressure in September: 1017mbar
The month with the highest atmospheric pressure is September (1017mbar).
The month with the lowest atmospheric pressure is November (1010.7mbar).
Average wind speed in September
Chafford Hundred, United Kingdom
- Average wind speed in September: 13.3km/h
The windiest month (with the highest average wind speed) is February (18.2km/h).
The calmest months (with the lowest average wind speed) are July and August (13.2km/h).
Average humidity in September
Chafford Hundred, United Kingdom
- Average humidity in September: 77%
The month with the highest relative humidity is December (88%).
The month with the lowest relative humidity is August (73%).
Average rainfall in September
Chafford Hundred, United Kingdom
- Average rainfall in September: 24mm
The wettest month (with the highest rainfall) is December (47mm).
The driest month (with the least rainfall) is April (19mm).
Average rainfall days in September
Chafford Hundred, United Kingdom
- Average rainfall days in September: 10.2 days
The month with the highest number of rainy days is November (15.2 days).
The month with the least rainy days is September (10.2 days).
Average snowfall in September
Chafford Hundred, 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
Chafford Hundred, United Kingdom
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (3.5 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
Chafford Hundred, United Kingdom
- Average daylight in September: 12h and 4min
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: 7h and 3min
The month with the most sunshine is August (Average sunshine: 8h and 18min).
The month with the least sunshine is February (Average sunshine: 3h and 36min).
Average sunshine days in September
Chafford Hundred, United Kingdom
- Average sunshine days in September: 16.8 days
The month with the most sunshine days is September (16.8 days).
The month with the least sunshine days is November (12.4 days).
Average UV index in September
Chafford Hundred, United Kingdom
- Average UV index in September: 4
The months with the highest UV index are June, July and August (UV index 5).
The months with the lowest UV index are January, February, March, November and December (UV index 2).
Average cloud cover in September
Chafford Hundred, United Kingdom
- Average cloud cover in September: 46
The month with the most cloud cover is February (Cloud cover 61).
The months with the least cloud cover are August and September (Cloud cover 46).
Average visibility in September
Chafford Hundred, 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).
