East Sussex weather in August 2025

Q: How hot is it in East Sussex in August?

Daytime temperatures usually reach 20°C in Eastbourne, East Sussex in August, falling to 13°C at night.

Q: How sunny is it in East Sussex in August?

There are normally 7 hours of bright sunshine each day in Eastbourne, East Sussex in August - that's 48% of daylight hours.

Q: How warm is the sea around East Sussex in August?

The average sea temperature around Eastbourne, East Sussex in August is 17°C.

Q: Does it rain in East Sussex in August?

There are usually 11 days with some rain in Eastbourne, East Sussex in August and the average monthly rainfall is 56mm.

Expect 68°F daytime maximum temperatures in the shade with on average 7 hours of sunshine per day in East Sussex in August. Check more long-term weather averages for East Sussex in August before you book your next holiday to East Sussex in 2025/2026.

68
68°F max day temperature
7
7 hours of sunshine per day
11
11 days with some rainfall
55
55°F min night temperature
14
14 hours of daylight per day
0
No heat & humidity
2.2
2.2 inches of monthly rainfall
6
6 (High) UV index
63
63°F sea temperature

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The August 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.

Top East Sussex destinations

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

Metric (°C) | Imperial (°F)

More about the UK

How hot is it in East Sussex in August?

Daytime temperatures usually reach 68°F in Eastbourne, East Sussex in August, falling to 55°F at night.

How sunny is it in East Sussex in August?

There are normally 7 hours of bright sunshine each day in Eastbourne, East Sussex in August - that's 48% of daylight hours.

How warm is the sea around East Sussex in August?

The average sea temperature around Eastbourne, East Sussex in August is 63°F.

Does it rain in East Sussex in August?

There are usually 11 days with some rain in Eastbourne, East Sussex in August and the average monthly rainfall is 2.2 inches.

East Sussex August sunrise & sunset times

Browse the sunrise and sunset times for East Sussex in August 2025. 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.

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