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 sea temperature 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 arrival of September brings an average high-temperature of an enjoyable 18.5°C (65.3°F), subtly diverging from August's 20.9°C (69.6°F). Leigh-on-Sea records an average low of 12.7°C (54.9°F) throughout the nights in September.Humidity
In September, the average relative humidity is 77%.Rainfall
In September, the rain falls for 9.7 days. Throughout September, 19mm (0.75") of precipitation is accumulated. Throughout the year, in Leigh-on-Sea, United Kingdom, there are 148.1 rainfall days, and 293mm (11.54") of precipitation is accumulated.Snowfall
In Leigh-on-Sea, snow does not fall in May through October.Sea temperature
September is the month with the warmest seawater, with an average sea temperature of 17.4°C (63.3°F).Note: A majority do not enjoy swimming in water at 17.4°C (63.3°F). The difficulty in controlling breathing increases progressively as the temperature dips below 21°C (69.8°F).
Daylight
In Leigh-on-Sea, the average length of the day in September is 12h and 38min.On the first day of September in Leigh-on-Sea, sunrise is at 6:10 am and sunset at 7:43 pm. On the last day of the month, sunrise is at 6:57 am and sunset at 6:37 pm BST.
Sunshine
The average sunshine in September in Leigh-on-Sea is 8h.UV index
In September, the average daily maximum UV index is 4. A UV Index value of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV rays for the ordinary person.Note: In September, the maximum UV index of 4 suggests these recommendations:
Take precautions - Protection against sunburn is recommended. Avoiding the Sun's peak radiation during midday hours is essential for health and safety. Arm yourself against UV rays' harm with protective apparel and UV-filtering shades.
Frequently asked questions
What are the temperatures in Leigh-on-Sea in September?
What is the average humidity in September in Leigh-on-Sea?
How much does it rain in Leigh-on-Sea in September?
When it does not snow in Leigh-on-Sea?
When is the sea warmest in Leigh-on-Sea?
What is the sea water temperature in September in Leigh-on-Sea?
How many hours of daylight does Leigh-on-Sea have in September?
When are sunrise and sunset in September in Leigh-on-Sea?
How long on average sun shines in September in Leigh-on-Sea?
What is the UV index intensity in September in Leigh-on-Sea?
Average temperature in September
Leigh-on-Sea, United Kingdom
- Average high temperature in September: 18.5°C
The warmest month (with the highest average high temperature) is August (20.9°C).
The month with the lowest average high temperature is January (6.9°C).
- Average low temperature in September: 12.7°C
The month with the highest average low temperature is August (14.7°C).
The coldest month (with the lowest average low temperature) is January (3.3°C).
Average pressure in September
Leigh-on-Sea, 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 (1010.7mbar).
Average wind speed in September
Leigh-on-Sea, United Kingdom
- Average wind speed in September: 16.2km/h
The windiest month (with the highest average wind speed) is December (22km/h).
The calmest month (with the lowest average wind speed) is July (14.9km/h).
Average humidity in September
Leigh-on-Sea, United Kingdom
- Average humidity in September: 77%
The month with the highest relative humidity is December (87%).
The month with the lowest relative humidity is August (75%).
Average rainfall in September
Leigh-on-Sea, United Kingdom
- Average rainfall in September: 19mm
The wettest month (with the highest rainfall) is October (33mm).
The driest month (with the least rainfall) is April (15mm).
Average rainfall days in September
Leigh-on-Sea, United Kingdom
- Average rainfall days in September: 9.7 days
The month with the highest number of rainy days is July (15.3 days).
The months with the least rainy days are February and September (9.7 days).
Average snowfall in September
Leigh-on-Sea, United Kingdom
- Average snowfall in September: 0mm
The month with the highest snowfall is February (14mm).
The months with the least snowfall are May, June, July, August, September and October (0mm).
Average snowfall days in September
Leigh-on-Sea, United Kingdom
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (3.3 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average sea temperature in September
Leigh-on-Sea, United Kingdom
- Average sea temperature in September: 17.4°C
The best month for swimming (with the highest average sea temperature) is September (17.4°C).
The coldest month (with the lowest average sea temperature) is March (7.3°C).
Average daylight in September /
Average sunshine in September
Leigh-on-Sea, 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: 8h and 0min
The months with the most sunshine are July and August (Average sunshine: 8h and 42min).
The month with the least sunshine is February (Average sunshine: 3h and 48min).
Average sunshine days in September
Leigh-on-Sea, United Kingdom
- Average sunshine days in September: 16.6 days
The month with the most sunshine days is September (16.6 days).
The month with the least sunshine days is July (11.8 days).
Average UV index in September
Leigh-on-Sea, 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
Leigh-on-Sea, United Kingdom
- Average cloud cover in September: 42
The month with the most cloud cover is February (Cloud cover 60).
The month with the least cloud cover is September (Cloud cover 42).
Average visibility in September
Leigh-on-Sea, United Kingdom
- Average visibility in September: 10km
The months with the highest visibility are March, April, May, June, July, August, September and October (10km).
The months with the lowest visibility are January, February, November and December (9km).
Leigh-on-Sea, United Kingdom
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