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East Sussex weather in September 2023
- 1818°C max day temperature
- 1212 days with some rainfall
- 1111°C min night temperature
- 1313 hours of daylight per day
- 0No heat & humidity
- 7272 mm of monthly rainfall
- 44 (Moderate) UV index
- 1717°C sea temperature
Below are average maximum temperatures at popular destinations in East Sussex in September. Select a destination to see more weather parameters.
Recommended for East Sussex
The September weather guide for East Sussex (Eastbourne) shows long term weather averages processed from data supplied by CRU (University of East Anglia), the Met Office & the Netherlands Meteorological Institute. Find out more about our data sources.
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Metric (°C / mm) | Imperial (°F / inches)
More about the UK
How hot is it in East Sussex in September?
Daytime temperatures usually reach 18°C in Eastbourne, East Sussex in September, falling to 11°C at night.
How sunny is it in East Sussex in September?
There are normally 5 hours of bright sunshine each day in Eastbourne, East Sussex in September - that's 43% of daylight hours.
How warm is the sea around East Sussex in September?
The average sea temperature around Eastbourne, East Sussex in September is 17°C.
Does it rain in East Sussex in September?
There are usually 12 days with some rain in Eastbourne, East Sussex in September and the average monthly rainfall is 72mm.
East Sussex September sunrise & sunset times
Browse the sunrise and sunset times for East Sussex in September 2023. Select a month to view East Sussex sunrise and sunset times for the next 12 months. The East Sussex sunrise and sunset times shown below are for Eastbourne.
|Date||Sunrise times||Sunset times|
|Friday, 1st September 2023||06:12||19:45|
|Friday, 15th September 2023||06:34||19:14|
|Saturday, 30th September 2023||06:57||18:40|
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