September weather forecastSleights, United Kingdom
September
Weather in September
The first month of the autumn, September, is still a refreshing month in Sleights, United Kingdom, with an average temperature ranging between min 11.8°C (53.2°F) and max 15.5°C (59.9°F).Temperature
The arrival of September marks a slight shift to an average high-temperature of a moderate 15.5°C (59.9°F) from August's 17.3°C (63.1°F). September nights in Sleights, United Kingdom, reflect a consistent temperature dip to a cool 11.8°C (53.2°F), a slight descent from daytime peaks.Humidity
The average relative humidity in September in Sleights, United Kingdom, is 82%.Rainfall
In Sleights, United Kingdom, in September, during 15 rainfall days, 34mm (1.34") of precipitation is typically accumulated. Throughout the year, there are 188.4 rainfall days, and 468mm (18.43") of precipitation is accumulated.Snowfall
In Sleights, snow does not fall in May through October.Daylight
The average length of the day in September in Sleights is 12h and 42min.On the first day of the month, sunrise is at 6:11 am and sunset at 7:53 pm. On the last day of September, in Sleights, United Kingdom, sunrise is at 7:04 am and sunset at 6:40 pm BST.
Sunshine
The average sunshine in September is 7.3h.UV index
May through September, with an average maximum UV index of 4, are months with the highest UV index. A UV Index reading of 3 to 5 represents a moderate threat to health from unprotected exposure to Sun's UV rays for the ordinary person.Note: A maximum daily UV index of 4 during September morphs into the following directions:
Adopt protective measures - Suggestions to resist sunburn are offered. Limiting exposure to the direct Sun during midday hours can help prevent harmful UV radiation effects. Outfit yourself in sun-safe attire, like long sleeves, pants, a hat, and UV-blocking sunglasses.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Sleights, United Kingdom
- Average high temperature in September: 15.5°C
The warmest months (with the highest average high temperature) are July and August (17.3°C).
The month with the lowest average high temperature is January (6.2°C).
- Average low temperature in September: 11.8°C
The month with the highest average low temperature is August (13.6°C).
The coldest month (with the lowest average low temperature) is January (3.6°C).
Average pressure in September
Sleights, United Kingdom
- Average pressure in September: 1014.9mbar
The month with the highest atmospheric pressure is May (1016.2mbar).
The month with the lowest atmospheric pressure is November (1008.4mbar).
Average wind speed in September
Sleights, United Kingdom
- Average wind speed in September: 19.3km/h
The windiest month (with the highest average wind speed) is December (25.2km/h).
The calmest month (with the lowest average wind speed) is June (15.5km/h).
Average humidity in September
Sleights, United Kingdom
- Average humidity in September: 82%
The months with the highest relative humidity are January, November and December (84%).
The months with the lowest relative humidity are April and May (80%).
Average rainfall in September
Sleights, United Kingdom
- Average rainfall in September: 34mm
The wettest month (with the highest rainfall) is June (62mm).
The driest month (with the least rainfall) is April (21mm).
Average rainfall days in September
Sleights, United Kingdom
- Average rainfall days in September: 15 days
The month with the highest number of rainy days is July (19 days).
The month with the least rainy days is February (12.9 days).
Average snowfall in September
Sleights, United Kingdom
- Average snowfall in September: 0mm
The months with the highest snowfall are January and February (21mm).
The months with the least snowfall are May, June, July, August, September and October (0mm).
Average snowfall days in September
Sleights, United Kingdom
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (3.9 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
Sleights, United Kingdom
- Average daylight in September: 12h and 42min
The month with the longest days is June (Average daylight: 17h and 6min).
The month with the shortest days is December (Average daylight: 7h and 24min).
- Average sunshine in September: 7h and 18min
The month with the most sunshine is August (Average sunshine: 8h and 0min).
The month with the least sunshine is February (Average sunshine: 3h and 54min).
Average sunshine days in September
Sleights, United Kingdom
- Average sunshine days in September: 12.2 days
The month with the most sunshine days is April (14.8 days).
The month with the least sunshine days is November (8.5 days).
Average UV index in September
Sleights, 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 and November (UV index 2).
Average cloud cover in September
Sleights, United Kingdom
- Average cloud cover in September: 49
The months with the most cloud cover are February and November (Cloud cover 61).
The month with the least cloud cover is April (Cloud cover 48).
Average visibility in September
Sleights, United Kingdom
- Average visibility in September: 10km
The months with the highest visibility are March, April, July, August, September, October, November and December (10km).
The months with the lowest visibility are January, February, May and June (9km).
