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 onset brings an average high-temperature of a comfortable 18.5°C (65.3°F), showing a minute difference from August's 21.2°C (70.2°F). Throughout September, Manningtree registers a consistent average low-temperature of 12.5°C (54.5°F).Humidity
In September, the average relative humidity in Manningtree is 77%.Rainfall
In Manningtree, during September, the rain falls for 12.9 days and regularly aggregates up to 31mm (1.22") of precipitation. Throughout the year, there are 182 rainfall days, and 445mm (17.52") of precipitation is accumulated.Snowfall
In Manningtree, snow does not fall in April through October.Sea temperature
With an average sea temperature of 17.7°C (63.9°F), September is the month with the warmest seawater.Note: For most individuals, swimming in 17.7°C (63.9°F) is not a pleasurable activity. Breathing becomes progressively more difficult as water temperature declines below 21°C (69.8°F).
Daylight
In Manningtree, the average length of the day in September is 12h and 39min.On the first day of September in Manningtree, sunrise is at 6:08 am and sunset at 7:42 pm. On the last day of the month, sunrise is at 6:55 am and sunset at 6:35 pm BST.
Sunshine
In September, the average sunshine in Manningtree is 7.7h.UV index
The average daily maximum UV index in September in Manningtree is 4. A UV Index estimate of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV rays for ordinary individuals.Note: A typical high UV index of 4 in September suggests the following recommendations:
Exercise caution. Those with pale skin may experience burns in less than half an hour. During midday, the Sun's radiation is strongest, and it's advisable to reduce direct exposure. During bright days, sunglasses that offer UVA and UVB defense are recommended.
Frequently asked questions
What are September temperatures in Manningtree?
What is the average humidity in September in Manningtree?
How many days does it rain in September in Manningtree?
When it does not snow in Manningtree?
When is the sea warmest in Manningtree?
What is the sea temperature in September in Manningtree?
How many hours of daylight does Manningtree have in September?
When is the sunrise / sunset in September in Manningtree?
How many hours of sunshine does Manningtree have in September?
What is the UV index intensity in September in Manningtree?
Average temperature in September
Manningtree, United Kingdom
- Average high temperature in September: 18.5°C
The warmest month (with the highest average high temperature) is August (21.2°C).
The month with the lowest average high temperature is January (6.4°C).
- Average low temperature in September: 12.5°C
The month with the highest average low temperature is August (14.5°C).
The coldest month (with the lowest average low temperature) is January (2.9°C).
Average pressure in September
Manningtree, United Kingdom
- Average pressure in September: 1016.8mbar
The month with the highest atmospheric pressure is September (1016.8mbar).
The month with the lowest atmospheric pressure is November (1010.5mbar).
Average wind speed in September
Manningtree, United Kingdom
- Average wind speed in September: 15.3km/h
The windiest month (with the highest average wind speed) is December (21km/h).
The calmest month (with the lowest average wind speed) is July (14.1km/h).
Average humidity in September
Manningtree, United Kingdom
- Average humidity in September: 77%
The months with the highest relative humidity are January and December (87%).
The month with the lowest relative humidity is August (75%).
Average rainfall in September
Manningtree, United Kingdom
- Average rainfall in September: 31mm
The wettest month (with the highest rainfall) is July (54mm).
The driest month (with the least rainfall) is April (18mm).
Average rainfall days in September
Manningtree, United Kingdom
- Average rainfall days in September: 12.9 days
The month with the highest number of rainy days is July (19.8 days).
The month with the least rainy days is February (11.8 days).
Average snowfall in September
Manningtree, United Kingdom
- Average snowfall in September: 0mm
The month with the highest snowfall is February (16mm).
The months with the least snowfall are April, May, June, July, August, September and October (0mm).
Average snowfall days in September
Manningtree, United Kingdom
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (3.7 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average sea temperature in September
Manningtree, United Kingdom
- Average sea temperature in September: 17.7°C
The best month for swimming (with the highest average sea temperature) is September (17.7°C).
The coldest month (with the lowest average sea temperature) is March (7.2°C).
Average daylight in September /
Average sunshine in September
Manningtree, 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 4min
The month with the most sunshine is August (Average sunshine: 8h and 36min).
The month with the least sunshine is February (Average sunshine: 3h and 48min).
Average sunshine days in September
Manningtree, United Kingdom
- Average sunshine days in September: 13.2 days
The month with the most sunshine days is March (14.3 days).
The month with the least sunshine days is July (7.9 days).
Average UV index in September
Manningtree, 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, March, November and December (UV index 2).
Average cloud cover in September
Manningtree, United Kingdom
- Average cloud cover in September: 44
The month with the most cloud cover is February (Cloud cover 61).
The months with the least cloud cover are August and September (Cloud cover 44).
Average visibility in September
Manningtree, United Kingdom
- Average visibility in September: 9km
The month with the highest visibility is August (10km).
The months with the lowest visibility are January, February, March, April, May, June, July, September, October, November and December (9km).
Manningtree, United Kingdom
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