Essex weather in September 2025

Q: How hot is it in Essex in September?

Daytime temperatures usually reach 19°C in Chelmsford, Essex in September, falling to 10°C at night.

Q: How sunny is it in Essex in September?

There are normally 5 hours of bright sunshine each day in Chelmsford, Essex in September - that's 37% of daylight hours.

Q: Does it rain in Essex in September?

There are usually 12 days with some rain in Chelmsford, Essex in September and the average monthly rainfall is 50mm.

Expect 19°C daytime maximum temperatures in the shade with on average 5 hours of sunshine per day in Essex in September based on long-term weather averages. There is usually 12 days with some rainfall and 50 mm of average monthly rainfall in September.

19
19°C max day temperature
5
5 hours of sunshine per day
12
12 days with some rainfall
10
10°C min night temperature
13
13 hours of daylight per day
0
No heat & humidity
50
50 mm of monthly rainfall
4
4 (Moderate) UV index

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The September weather guide for Essex (Chelmsford) 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.

Top Essex destinations

Below are average maximum temperatures at popular countries, regions and places in Essex in September. Select a holiday destination to see more weather parameters.

Metric (°C / mm) | Imperial (°F / inches)

More about the UK

How hot is it in Essex in September?

Daytime temperatures usually reach 19°C in Chelmsford, Essex in September, falling to 10°C at night.

How sunny is it in Essex in September?

There are normally 5 hours of bright sunshine each day in Chelmsford, Essex in September - that's 37% of daylight hours.

Does it rain in Essex in September?

There are usually 12 days with some rain in Chelmsford, Essex in September and the average monthly rainfall is 50mm.

Essex September sunrise & sunset times

Browse the sunrise and sunset times for Essex in September 2025. Select a month to view Essex sunrise and sunset times for the next 12 months. The Essex sunrise and sunset times shown below are for Chelmsford.

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