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
September
Weather in September
Temperature
September begins with an average high-temperature of an enjoyable 18.8°C (65.8°F), reflecting close similarity to the preceding month. Southall observes an average low-temperature of 11.2°C (52.2°F) during September.Humidity
In September, the average relative humidity is 77%.Rainfall
In Southall, in September, during 11.9 rainfall days, 26mm (1.02") of precipitation is typically accumulated. Throughout the year, there are 167.7 rainfall days, and 396mm (15.59") of precipitation is accumulated.Snowfall
In Southall, snow does not fall in April through October.Daylight
In Southall, the average length of the day in September is 12h and 38min.On the first day of September in Southall, sunrise is at 6:15 am and sunset at 7:47 pm. On the last day of the month, sunrise is at 7:01 am and sunset at 6:41 pm BST.
Sunshine
The average sunshine in September in Southall is 7.1h.UV index
In September, the average daily maximum UV index in Southall is 4. A UV Index of 3 to 5 symbolizes a medium vulnerability from unsafe exposure to UV radiation for average individuals.Note: In September, the maximum UV index of 4 suggests these recommendations:
Prioritize safety - Suggestions to prevent sun damage are offered. Avoiding the Sun's peak radiation during midday hours is essential for health and safety. Shield yourself from the harmful effects of UV radiation with sun-protective attire, a hat, and quality sunglasses.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the usual temperature for Southall in September?
What is the average humidity in September in Southall?
How much does it rain in Southall in September?
When it does not snow in Southall?
What is the average length of the day in September in Southall?
What time are sunrise and sunset in September in Southall?
How many hours of sunshine does Southall have in September?
What is the UV index reading in September in Southall?
Average temperature in September
Southall, United Kingdom
- Average high temperature in September: 18.8°C
The warmest month (with the highest average high temperature) is July (22.1°C).
The month with the lowest average high temperature is January (6.8°C).
- Average low temperature in September: 11.2°C
The month with the highest average low temperature is August (13.7°C).
The coldest month (with the lowest average low temperature) is January (2°C).
Average pressure in September
Southall, United Kingdom
- Average pressure in September: 1016.9mbar
The month with the highest atmospheric pressure is September (1016.9mbar).
The month with the lowest atmospheric pressure is November (1010.5mbar).
Average wind speed in September
Southall, United Kingdom
- Average wind speed in September: 12.7km/h
The windiest month (with the highest average wind speed) is February (17.5km/h).
The calmest months (with the lowest average wind speed) are July and September (12.7km/h).
Average humidity in September
Southall, United Kingdom
- Average humidity in September: 77%
The month with the highest relative humidity is December (88%).
The month with the lowest relative humidity is August (73%).
Average rainfall in September
Southall, United Kingdom
- Average rainfall in September: 26mm
The wettest month (with the highest rainfall) is December (46mm).
The driest month (with the least rainfall) is April (22mm).
Average rainfall days in September
Southall, United Kingdom
- Average rainfall days in September: 11.9 days
The month with the highest number of rainy days is July (16.1 days).
The month with the least rainy days is September (11.9 days).
Average snowfall in September
Southall, United Kingdom
- Average snowfall in September: 0mm
The month with the highest snowfall is February (18mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).
Average snowfall days in September
Southall, United Kingdom
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (3.5 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
Southall, United Kingdom
- Average daylight in September: 12h and 4min
The month with the longest days is June (Average daylight: 16h and 36min).
The month with the shortest days is December (Average daylight: 7h and 54min).
- Average sunshine in September: 7h and 1min
The month with the most sunshine is July (Average sunshine: 8h and 0min).
The month with the least sunshine is February (Average sunshine: 3h and 42min).
Average sunshine days in September
Southall, United Kingdom
- Average sunshine days in September: 14.9 days
The month with the most sunshine days is September (14.9 days).
The month with the least sunshine days is February (11.2 days).
Average UV index in September
Southall, United Kingdom
- Average UV index in September: 4
The months with the highest UV index are June and 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
Southall, United Kingdom
- Average cloud cover in September: 50
The month with the most cloud cover is February (Cloud cover 61).
The month with the least cloud cover is April (Cloud cover 49).
Average visibility in September
Southall, United Kingdom
- Average visibility in September: 8km
The months with the highest visibility are January, February, March, April, May, June, July, August, October and December (9km).
The months with the lowest visibility are September and November (8km).
