September weather forecastCornsay, United Kingdom
September
Weather in September
September, the first month of the autumn in Cornsay, is also a moderate month, with an average temperature varying between 15.7°C (60.3°F) and 9.5°C (49.1°F).Temperature
As Cornsay transitions into September, the average high-temperature stands at a mild 15.7°C (60.3°F), offering little variation from the preceding month. The average low-temperature during September nights is a frosty 9.5°C (49.1°F).Humidity
In September, the average relative humidity is 83%.Rainfall
In Cornsay, during September, the rain falls for 11.5 days and regularly aggregates up to 26mm (1.02") of precipitation. Throughout the year, in Cornsay, there are 167.1 rainfall days, and 380mm (14.96") of precipitation is accumulated.Snowfall
In Cornsay, United Kingdom, snow does not fall in June through October.Daylight
The average length of the day in September is 12h and 43min.On the first day of the month, sunrise is at 6:14 am and sunset at 7:58 pm. On the last day of September, sunrise is at 7:08 am and sunset at 6:45 pm BST.
Sunshine
In September, the average sunshine in Cornsay is 7.5h.UV index
The months with the highest UV index in Cornsay are May through September, with an average maximum UV index of 4. A UV Index of 3 to 5 symbolizes a medium vulnerability from unprotected exposure to Sun's UV rays for the ordinary person.Note: In September, the maximum UV index of 4 translates into these guidelines:
Adopt protective measures - It is advised to guard against sun damage. Midday Sun has the strongest UV rays, making it crucial to limit exposure and find shade. For a sun-safe wardrobe, go for clothes that are tightly woven and generously sized.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Cornsay, United Kingdom
- Average high temperature in September: 15.7°C
The warmest month (with the highest average high temperature) is July (18.3°C).
The month with the lowest average high temperature is January (5.1°C).
- Average low temperature in September: 9.5°C
The month with the highest average low temperature is August (11.5°C).
The coldest month (with the lowest average low temperature) is January (1.6°C).
Average pressure in September
Cornsay, United Kingdom
- Average pressure in September: 1014.6mbar
The month with the highest atmospheric pressure is May (1016mbar).
The month with the lowest atmospheric pressure is November (1008mbar).
Average wind speed in September
Cornsay, United Kingdom
- Average wind speed in September: 15km/h
The windiest month (with the highest average wind speed) is January (19.3km/h).
The calmest month (with the lowest average wind speed) is June (12.7km/h).
Average humidity in September
Cornsay, United Kingdom
- Average humidity in September: 83%
The months with the highest relative humidity are November and December (88%).
The month with the lowest relative humidity is April (80%).
Average rainfall in September
Cornsay, United Kingdom
- Average rainfall in September: 26mm
The wettest months (with the highest rainfall) are June and August (49mm).
The driest month (with the least rainfall) is April (16mm).
Average rainfall days in September
Cornsay, United Kingdom
- Average rainfall days in September: 11.5 days
The month with the highest number of rainy days is July (20.1 days).
The month with the least rainy days is February (9.8 days).
Average snowfall in September
Cornsay, United Kingdom
- Average snowfall in September: 0mm
The month with the highest snowfall is February (39mm).
The months with the least snowfall are June, July, August, September and October (0mm).
Average snowfall days in September
Cornsay, United Kingdom
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (4.7 days).
The months with the least snowfall days are June, July, August, September and October (0 days).
Average daylight in September /
Average sunshine in September
Cornsay, United Kingdom
- Average daylight in September: 12h and 42min
The month with the longest days is June (Average daylight: 17h and 12min).
The month with the shortest days is December (Average daylight: 7h and 18min).
- Average sunshine in September: 7h and 30min
The month with the most sunshine is August (Average sunshine: 7h and 48min).
The months with the least sunshine are February, October and November (Average sunshine: 4h and 24min).
Average sunshine days in September
Cornsay, United Kingdom
- Average sunshine days in September: 14.2 days
The month with the most sunshine days is December (15.9 days).
The month with the least sunshine days is July (7.5 days).
Average UV index in September
Cornsay, 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, March, November and December (UV index 2).
Average cloud cover in September
Cornsay, United Kingdom
- Average cloud cover in September: 48
The month with the most cloud cover is November (Cloud cover 57).
The month with the least cloud cover is September (Cloud cover 48).
Average visibility in September
Cornsay, 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).
