Temperature in East Sussex in September

Daytime highs, nighttime lows and the warmest cities in East Sussex, the United Kingdom this September.

East Sussex, the United Kingdom, a region in the United Kingdom, typically experiences pleasant weather in September, with maximum daytime temperatures around 19°C (66°F) and nighttime temperatures around 14°C (57°F) in Brighton & Hove. September is part of the summer season

What is the temperature of the different cities in East Sussex, the United Kingdom 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.

Select a Month

Check the conditions for any month of the year.

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

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

See also: East Sussex weather by month.

Best Places to Visit in East Sussex in September

Click on a destination dot for more details. Toggle the map to compare temperatures or precipitation across East Sussex.

Conditions Temperatures Precipitation
Avg daytime high -5°C (23°F) cold → 32°C (90°F) hot

Marker color shows the average daytime high temperature in September: blue is cold, red is hot.

See all September weather averages, cities and regions in East Sussex

East Sussex temperatures in September: frequently asked questions

How hot does it get in East Sussex, the United Kingdom in September?

Brighton & Hove averages a daytime high of 19°C (66°F) in September, which is pleasant for East Sussex, the United Kingdom.

How cold does it get at night in East Sussex, the United Kingdom in September?

Nighttime temperatures in Brighton & Hove typically drop to around 14°C (57°F) in September.

What is the water temperature in September?

The water temperature averages approximately 18°C (64°F) in Brighton & Hove this month, still a bit cool to swim, though some enjoy a refreshing dip.

Interested in more climate information?

We have much more information about the climate in East Sussex.

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.

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