September weather forecastLewdown, United Kingdom
September
Weather in September
The first month of the autumn, September, is also an enjoyable month in Lewdown, United Kingdom, with an average temperature fluctuating between 16.4°C (61.5°F) and 10.3°C (50.5°F).Temperature
As August turns into September, the average high-temperatures rest at a still enjoyable 16.4°C (61.5°F), showing a minor variation from the prior month. Lewdown records an average low of 10.3°C (50.5°F) throughout the nights in September.Humidity
In Lewdown, the average relative humidity in September is 87%.Rainfall
In Lewdown, during September, the rain falls for 13 days and regularly aggregates up to 30mm (1.18") of precipitation. Throughout the year, there are 181.5 rainfall days, and 531mm (20.91") of precipitation is accumulated.Snowfall
May through October are months without snowfall.Daylight
The average length of the day in September is 12h and 37min.On the first day of the month, sunrise is at 6:31 am and sunset at 8:01 pm. On the last day of September, sunrise is at 7:16 am and sunset at 6:56 pm BST.
Sunshine
In September, the average sunshine is 6.3h.UV index
May through September, with an average maximum UV index of 4, are months with the highest UV index. A UV Index value of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV rays for the average person.Note: In September, the maximum UV index of 4 transforms into these recommendations:
Take necessary precautions - Protection from skin and eye injury is mandatory. The best time to avoid the Sun's harmful UV radiation is during midday when it's most potent. Consider a wide-brim hat essential for effective sun defense covering your face, neck, and eyes.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Lewdown, United Kingdom
- Average high temperature in September: 16.4°C
The warmest month (with the highest average high temperature) is July (18.6°C).
The months with the lowest average high temperature are January and February (7.3°C).
- Average low temperature in September: 10.3°C
The months with the highest average low temperature are July and August (11.9°C).
The coldest month (with the lowest average low temperature) is February (3°C).
Average pressure in September
Lewdown, United Kingdom
- Average pressure in September: 1017.3mbar
The month with the highest atmospheric pressure is September (1017.3mbar).
The month with the lowest atmospheric pressure is November (1010.3mbar).
Average wind speed in September
Lewdown, United Kingdom
- Average wind speed in September: 15.6km/h
The windiest month (with the highest average wind speed) is February (21.7km/h).
The calmest month (with the lowest average wind speed) is July (14.3km/h).
Average humidity in September
Lewdown, United Kingdom
- Average humidity in September: 87%
The month with the highest relative humidity is November (89%).
The month with the lowest relative humidity is April (84%).
Average rainfall in September
Lewdown, United Kingdom
- Average rainfall in September: 30mm
The wettest months (with the highest rainfall) are November and December (64mm).
The driest month (with the least rainfall) is May (28mm).
Average rainfall days in September
Lewdown, United Kingdom
- Average rainfall days in September: 13 days
The month with the highest number of rainy days is November (18.6 days).
The months with the least rainy days are February and September (13 days).
Average snowfall in September
Lewdown, United Kingdom
- Average snowfall in September: 0mm
The month with the highest snowfall is January (34mm).
The months with the least snowfall are May, June, July, August, September and October (0mm).
Average snowfall days in September
Lewdown, United Kingdom
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (3.8 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in September /
Average sunshine in September
Lewdown, United Kingdom
- Average daylight in September: 12h and 36min
The month with the longest days is June (Average daylight: 16h and 24min).
The month with the shortest days is December (Average daylight: 8h and 6min).
- Average sunshine in September: 6h and 18min
The month with the most sunshine is April (Average sunshine: 7h and 6min).
The month with the least sunshine is November (Average sunshine: 3h and 18min).
Average sunshine days in September
Lewdown, United Kingdom
- Average sunshine days in September: 13.4 days
The month with the most sunshine days is April (13.6 days).
The month with the least sunshine days is November (8.5 days).
Average UV index in September
Lewdown, 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
Lewdown, United Kingdom
- Average cloud cover in September: 58
The month with the most cloud cover is November (Cloud cover 67).
The month with the least cloud cover is April (Cloud cover 53).
Average visibility in September
Lewdown, United Kingdom
- Average visibility in September: 8km
The months with the highest visibility are January, February, March, April, June, October, November and December (9km).
The months with the lowest visibility are May, July, August and September (8km).
