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
September's weather displays an average high-temperature of an enjoyable 18.5°C (65.3°F), slightly varied from August's 20.9°C (69.6°F). September nights experience a consistent temperature drop to a cool 12.7°C (54.9°F).Humidity
In September, the average relative humidity is 77%.Rainfall
In Southend-on-Sea, United Kingdom, during September, the rain falls for 9.7 days and regularly aggregates up to 19mm (0.75") of precipitation. In Southend-on-Sea, United Kingdom, during the entire year, the rain falls for 148.1 days and collects up to 293mm (11.54") of precipitation.Snowfall
May through October are months without snowfall in Southend-on-Sea.Sea temperature
The month with the warmest seawater in Southend-on-Sea is September, with an average sea temperature of 17.4°C (63.3°F).Note: For most, swimming in 17.4°C (63.3°F) is not an enjoyable activity. Furthermore, controlling your breathing becomes progressively more difficult as the water temperature decreases from 21°C (69.8°F) to 15°C (59°F).
Daylight
In Southend-on-Sea, the average length of the day in September is 12h and 38min.On the first day of September, 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 6:36 pm BST.
Sunshine
The average sunshine in September is 8h.UV index
In September, the average daily maximum UV index is 4. A UV Index of 3 to 5 symbolizes a medium vulnerability from unsafe exposure to UV radiation for ordinary individuals.Note: The daily maximum UV index of 4 in September interprets into the following advice:
Prioritize safety - The need to safeguard skin and eyes from harm is emphasized. Direct exposure to the Sun during its peak hours around mid-day should be minimized for safety. For effective sun eye protection, rely on sunglasses certified for UVA and UVB resistance.
Frequently asked questions
What is the usual temperature for Southend-on-Sea in September?
What is the average humidity in September in Southend-on-Sea?
How much does it rain in Southend-on-Sea in September?
When it does not snow in Southend-on-Sea?
What is the month with the warmest sea water in Southend-on-Sea?
What is the sea water temperature in September in Southend-on-Sea?
What is the average length of the day in September in Southend-on-Sea?
When are sunrise and sunset in September in Southend-on-Sea?
How many hours of sunshine does Southend-on-Sea have in September?
What is the UV index reading in September in Southend-on-Sea?
Average temperature in September
Southend-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
Southend-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
Southend-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
Southend-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
Southend-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
Southend-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
Southend-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
Southend-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
Southend-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
Southend-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
Southend-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
Southend-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
Southend-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
Southend-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).
Southend-on-Sea, United Kingdom
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