September weather forecastWest Down, United Kingdom
September
Weather in September
September, the first month of the autumn in West Down, is still a comfortable month, with an average temperature ranging between min 12.4°C (54.3°F) and max 16.7°C (62.1°F).Temperature
An average high-temperature of a still refreshing 16.7°C (62.1°F) marks September, exhibiting a close resemblance to the conditions in August. During the month of September, West Down identifies an average nighttime low-temperature of 12.4°C (54.3°F), slightly lower than its daytime counterpart.Humidity
The average relative humidity in September is 83%.Rainfall
In West Down, during September, the rain falls for 16.1 days and regularly aggregates up to 46mm (1.81") of precipitation. Throughout the year, in West Down, there are 214 rainfall days, and 655mm (25.79") of precipitation is accumulated.Snowfall
In West Down, snow does not fall in April through November.Daylight
In West Down, the average length of the day in September is 12h and 38min.On the first day of the month, sunrise is at 6:30 am and sunset at 8:02 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 7.2h.UV index
May through September, with an average maximum UV index of 4, are months with the highest UV index. A UV Index of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV rays for ordinary individuals.Note: The daily high UV index of 4 in September translates into this advice:
Put precautions into practice - Ensuring skin and eye safety is a necessity. To avoid the Sun's strongest rays, limit exposure around the mid-day period. A hat with a broad brim is indispensable, filtering out up to half of UV rays.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
West Down, United Kingdom
- Average high temperature in September: 16.7°C
The warmest month (with the highest average high temperature) is July (18.2°C).
The month with the lowest average high temperature is February (8°C).
- Average low temperature in September: 12.4°C
The month with the highest average low temperature is August (13.9°C).
The coldest month (with the lowest average low temperature) is February (5°C).
Average pressure in September
West Down, United Kingdom
- Average pressure in September: 1016.9mbar
The months with the highest atmospheric pressure are May and September (1016.9mbar).
The month with the lowest atmospheric pressure is November (1009.9mbar).
Average wind speed in September
West Down, United Kingdom
- Average wind speed in September: 19.2km/h
The windiest month (with the highest average wind speed) is December (26.6km/h).
The calmest month (with the lowest average wind speed) is June (17km/h).
Average humidity in September
West Down, United Kingdom
- Average humidity in September: 83%
The month with the highest relative humidity is January (84%).
The months with the lowest relative humidity are April and May (81%).
Average rainfall in September
West Down, United Kingdom
- Average rainfall in September: 46mm
The wettest month (with the highest rainfall) is December (83mm).
The driest month (with the least rainfall) is May (29mm).
Average rainfall days in September
West Down, United Kingdom
- Average rainfall days in September: 16.1 days
The month with the highest number of rainy days is November (22.1 days).
The month with the least rainy days is May (14.9 days).
Average snowfall in September
West Down, United Kingdom
- Average snowfall in September: 0mm
The month with the highest snowfall is December (6mm).
The months with the least snowfall are April, May, June, July, August, September, October and November (0mm).
Average snowfall days in September
West Down, United Kingdom
- Average snowfall days in September: 0 days
The months with the highest number of snowfall days are February and December (0.8 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).
Average daylight in September /
Average sunshine in September
West Down, United Kingdom
- Average daylight in September: 12h and 36min
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 12min
The month with the most sunshine is May (Average sunshine: 8h and 24min).
The months with the least sunshine are January and November (Average sunshine: 3h and 48min).
Average sunshine days in September
West Down, United Kingdom
- Average sunshine days in September: 10 days
The month with the most sunshine days is May (13.3 days).
The month with the least sunshine days is November (6.2 days).
Average UV index in September
West Down, 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, November and December (UV index 2).
Average cloud cover in September
West Down, United Kingdom
- Average cloud cover in September: 50
The months with the most cloud cover are November and December (Cloud cover 62).
The months with the least cloud cover are April and May (Cloud cover 45).
Average visibility in September
West Down, United Kingdom
- Average visibility in September: 9km
The months with the highest visibility are February and June (10km).
The months with the lowest visibility are January, March, April, May, July, August, September, October, November and December (9km).
