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
The shift into September records an average high-temperature of a refreshing 18.3°C (64.9°F), subtly varied from August's 20.3°C (68.5°F). Swallowcliffe's nights in September cool down to an average low-temperature of 10.3°C (50.5°F).Humidity
In September, the average relative humidity in Swallowcliffe is 82%.Rainfall
In September, the rain falls for 11.5 days. Throughout September, 26mm (1.02") of precipitation is accumulated. In Swallowcliffe, during the entire year, the rain falls for 166 days and collects up to 451mm (17.76") of precipitation.Snowfall
In Swallowcliffe, snow does not fall in April through October.Daylight
In September, the average length of the day is 12h and 38min.On the first day of September in Swallowcliffe, sunrise is at 6:22 am and sunset at 7:53 pm. On the last day of the month, sunrise is at 7:07 am and sunset at 6:48 pm BST.
Sunshine
In September, the average sunshine in Swallowcliffe is 7h.UV index
In September, the average daily maximum UV index in Swallowcliffe is 4. A UV Index estimate of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV rays for the average person.Note: A daily maximum UV index of 4 in September translates into the following instructions:
Prioritize safety - Recommendations to avert sunburn are shared. To guard against the harmful effects of the Sun, minimize exposure during midday. For effective sun eye protection, rely on sunglasses certified for UVA and UVB resistance.
Frequently asked questions
What is the average September temperature in Swallowcliffe?
What is the average humidity in September in Swallowcliffe?
How much does it rain in Swallowcliffe in September?
When it does not snow in Swallowcliffe?
What is the average length of the day in September in Swallowcliffe?
When is the sunrise / sunset in September in Swallowcliffe?
How many hours of sunshine does Swallowcliffe have in September?
What is the UV index reading in September in Swallowcliffe?
Average temperature in September
Swallowcliffe, United Kingdom
- Average high temperature in September: 18.3°C
The warmest month (with the highest average high temperature) is July (20.9°C).
The month with the lowest average high temperature is January (7.1°C).
- Average low temperature in September: 10.3°C
The month with the highest average low temperature is August (12.4°C).
The coldest month (with the lowest average low temperature) is January (2.2°C).
Average pressure in September
Swallowcliffe, United Kingdom
- Average pressure in September: 1017mbar
The month with the highest atmospheric pressure is September (1017mbar).
The month with the lowest atmospheric pressure is November (1010.5mbar).
Average wind speed in September
Swallowcliffe, United Kingdom
- Average wind speed in September: 12.7km/h
The windiest month (with the highest average wind speed) is February (16.8km/h).
The calmest month (with the lowest average wind speed) is July (12.5km/h).
Average humidity in September
Swallowcliffe, United Kingdom
- Average humidity in September: 82%
The month with the highest relative humidity is December (91%).
The month with the lowest relative humidity is July (80%).
Average rainfall in September
Swallowcliffe, United Kingdom
- Average rainfall in September: 26mm
The wettest month (with the highest rainfall) is December (56mm).
The driest month (with the least rainfall) is April (25mm).
Average rainfall days in September
Swallowcliffe, United Kingdom
- Average rainfall days in September: 11.5 days
The month with the highest number of rainy days is July (15.4 days).
The month with the least rainy days is September (11.5 days).
Average snowfall in September
Swallowcliffe, United Kingdom
- Average snowfall in September: 0mm
The month with the highest snowfall is February (11mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).
Average snowfall days in September
Swallowcliffe, United Kingdom
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (2.4 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
Swallowcliffe, 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: 7h and 54min).
The month with the least sunshine is February (Average sunshine: 3h and 42min).
Average sunshine days in September
Swallowcliffe, United Kingdom
- Average sunshine days in September: 16.2 days
The month with the most sunshine days is September (16.2 days).
The month with the least sunshine days is June (12.2 days).
Average UV index in September
Swallowcliffe, 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
Swallowcliffe, United Kingdom
- Average cloud cover in September: 51
The month with the most cloud cover is November (Cloud cover 63).
The month with the least cloud cover is September (Cloud cover 51).
Average visibility in September
Swallowcliffe, United Kingdom
- Average visibility in September: 8km
The months with the highest visibility are February and March (9km).
The months with the lowest visibility are January, April, May, June, July, August, September, October, November and December (8km).
Swallowcliffe, United Kingdom
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