West Sussex weather in August 2025

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

Daytime temperatures usually reach 20°C in Bognor Regis, West Sussex in August, falling to 13°C at night.

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

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

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

The average sea temperature around Bognor Regis, West Sussex in August is 18°C.

Q: Does it rain in West Sussex in August?

There are usually 11 days with some rain in Bognor Regis, West Sussex in August and the average monthly rainfall is 53mm.

Expect 20°C daytime maximum temperatures in the shade with on average 7 hours of sunshine per day in West Sussex in August. Check more long-term weather averages for West Sussex in August before you book your next holiday to West 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
53
53 mm of monthly rainfall
6
6 (High) UV index
18
18°C sea temperature

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The August weather guide for West Sussex (Bognor Regis) 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.

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

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How hot is it in West Sussex in August?

Daytime temperatures usually reach 20°C in Bognor Regis, West Sussex in August, falling to 13°C at night.

How sunny is it in West Sussex in August?

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

How warm is the sea around West Sussex in August?

The average sea temperature around Bognor Regis, West Sussex in August is 18°C.

Does it rain in West Sussex in August?

There are usually 11 days with some rain in Bognor Regis, West Sussex in August and the average monthly rainfall is 53mm.

West Sussex August sunrise & sunset times

Browse the sunrise and sunset times for West Sussex in August 2025. Select a month to view West Sussex sunrise and sunset times for the next 12 months. The West Sussex sunrise and sunset times shown below are for Bognor Regis.

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