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 20°C 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.

20
20°C max day temperature
7
7 hours of sunshine per day
11
11 days with some rainfall
13
13°C min night temperature
14
14 hours of daylight per day
0
No heat & humidity
56
56 mm of monthly rainfall
6
6 (High) UV index
17
17°C sea temperature

More about East Sussex

East Sussex by month

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

Recommended for East Sussex

English Heritage discount code: 20% off memberships

Exclusive

Save 20% on new English Heritage memberships
Get FREE unlimited access to over 400 historic attractions
Exclusive discount applies to annual & gift memberships

Show discount code

******M20

Redeem English Heritage discount code >>

Expires at 23:59 on Tuesday 31st Dec 2024 · View all English Heritage offers

Places to visit

Destination

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 / mm) | Imperial (°F / inches)

More about the UK

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.

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 17°C.

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.

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.

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