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
As August transitions into September, Winchester records an average high-temperature of an enjoyable 18.6°C (65.5°F), showing a gentle shift from the preceding month. Winchester's temperature drops to an average low of 10.7°C (51.3°F) during the nights of September.Humidity
In Winchester, United Kingdom, the average relative humidity in September is 80%.Rainfall
In Winchester, in September, it is raining for 12.9 days, with typically 33mm (1.3") of accumulated precipitation. Throughout the year, there are 186.6 rainfall days, and 535mm (21.06") of precipitation is accumulated.Snowfall
April through October are months without snowfall in Winchester.Daylight
The average length of the day in September is 12h and 38min.On the first day of the month, sunrise is at 6:19 am and sunset at 7:50 pm. On the last day of September, sunrise is at 7:05 am and sunset at 6:45 pm BST.
Sunshine
In Winchester, the average sunshine in September is 7h.UV index
In September, the average daily maximum UV index in Winchester is 4. A UV Index estimate of 3 to 5 represents a medium health hazard from unprotected exposure to Sun's UV rays for the ordinary person.Note: In September, the maximum UV index of 4 suggests this advice:
Be vigilant - Suggestions to stave off sun damage are provided. Solar radiation is at its peak intensity during midday, so it's advisable to stay indoors or in the shade. Select sunglasses that boast both UVA and UVB protection to limit the adverse effects of the sun on the eyes.
Frequently asked questions
What is the temperature in September in Winchester?
What is the average humidity in September in Winchester?
How much does it rain in Winchester in September?
When it does not snow in Winchester?
How many hours of daylight does Winchester have in September?
What time are sunrise and sunset in September in Winchester?
How many hours of sunshine does Winchester have in September?
How high is the UV index in September in Winchester?
Average temperature in September
Winchester, United Kingdom
- Average high temperature in September: 18.6°C
The warmest month (with the highest average high temperature) is July (21.3°C).
The month with the lowest average high temperature is January (7.3°C).
- Average low temperature in September: 10.7°C
The month with the highest average low temperature is August (12.9°C).
The coldest month (with the lowest average low temperature) is February (2.5°C).
Average pressure in September
Winchester, United Kingdom
- Average pressure in September: 1017.1mbar
The month with the highest atmospheric pressure is September (1017.1mbar).
The month with the lowest atmospheric pressure is November (1010.6mbar).
Average wind speed in September
Winchester, United Kingdom
- Average wind speed in September: 13.2km/h
The windiest month (with the highest average wind speed) is February (17.3km/h).
The calmest month (with the lowest average wind speed) is July (12.8km/h).
Average humidity in September
Winchester, United Kingdom
- Average humidity in September: 80%
The months with the highest relative humidity are January and December (89%).
The month with the lowest relative humidity is July (78%).
Average rainfall in September
Winchester, United Kingdom
- Average rainfall in September: 33mm
The wettest month (with the highest rainfall) is December (64mm).
The driest month (with the least rainfall) is April (29mm).
Average rainfall days in September
Winchester, United Kingdom
- Average rainfall days in September: 12.9 days
The month with the highest number of rainy days is November (17.7 days).
The month with the least rainy days is September (12.9 days).
Average snowfall in September
Winchester, 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 and October (0mm).
Average snowfall days in September
Winchester, United Kingdom
- Average snowfall days in September: 0 days
The months with the highest number of snowfall days are January and February (2.2 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
Winchester, United Kingdom
- Average daylight in September: 12h and 4min
The month with the longest days is June (Average daylight: 16h and 30min).
The month with the shortest days is December (Average daylight: 8h and 0min).
- Average sunshine in September: 7h and 0min
The month with the most sunshine is July (Average sunshine: 8h and 0min).
The month with the least sunshine is February (Average sunshine: 3h and 36min).
Average sunshine days in September
Winchester, United Kingdom
- Average sunshine days in September: 13.7 days
The month with the most sunshine days is September (13.7 days).
The month with the least sunshine days is November (9.1 days).
Average UV index in September
Winchester, United Kingdom
- Average UV index in September: 4
The month with the highest UV index is July (UV index 5).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in September
Winchester, United Kingdom
- Average cloud cover in September: 50
The month with the most cloud cover is November (Cloud cover 64).
The months with the least cloud cover are July and September (Cloud cover 50).
Average visibility in September
Winchester, United Kingdom
- Average visibility in September: 8km
The months with the highest visibility are February, March, April, May, June, July and August (9km).
The months with the lowest visibility are January, September, October, November and December (8km).
Winchester, United Kingdom
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