Temperature in East Sussex in September

East Sussex is a region in the United Kingdom. September is generally a pleasant month with maximum daytime temperatures around 19°C and nighttime temperatures around 14°C in Brighton & Hove. In September, it is summer.

What is the temperature of the different cities in East Sussex in September?

Find the average daytime temperatures in September for the most popular destinations in East Sussex on the map below. Click on a destination dot for more detailed information.

Weather conditions Weather

Temperatures

Precipitation

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Legend

very warm

warm

pleasant

moderate

cold

very cold

Very warm means maximum temperatures above 30°C. Warm: 22°C to 30°C. Pleasant: 18°C to 22°C Moderate: 12°C to 18°C. Cold: 2°C to 12°C. Very cold: lower than 2°C

Select a Month of Interest

Check the conditions for any month of the year.

For a detailed overview over the year and the best time to visit the United Kingdom, check out our East Sussex's climate page.

What is the water's temperature in September?

The water temperature averages approximately 18°C in Brighton & Hove this month, so still a bit cool to swim but some enjoy a chilly dive.

Interested in more climate information?

Weather and climate has detailed information for every country in the world. Are you going to the United Kingdom? Get detailed historical weather averages for many cities in the United Kingdom.

Not sure yet where to go? We now have a tool which recommends destinations that suit your ideal travel conditions. Find out where to go with our weather planner.