Arcachon weather in August 2025

Expect 24°C daytime maximum temperatures in the shade with on average 7 hours of sunshine per day in Arcachon in August. Check more long-term weather averages for Arcachon in August before you book your next holiday to France in 2025/2026.

24
24°C max day temperature
7
7 hours of sunshine per day
13
13 days with some rainfall
15
15°C min night temperature
14
14 hours of daylight per day
L
Low heat & humidity
75
75 mm of monthly rainfall
7
7 (High) UV index
21
21°C sea temperature

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The August weather guide for France (Arcachon) 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.

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

More about France

How hot is it in Arcachon in August?

Daytime temperatures usually reach 24°C in Arcachon in August, falling to 15°C at night.

How sunny is it in Arcachon in August?

There are normally 7 hours of bright sunshine each day in Arcachon in August - that's 53% of daylight hours.

How warm is the sea around Arcachon in August?

The average sea temperature around Arcachon in August is 21°C.

Does it rain in Arcachon in August?

There are usually 13 days with some rain in Arcachon in August and the average monthly rainfall is 75mm.

Arcachon August sunrise & sunset times

Browse the sunrise and sunset times for Arcachon in August 2025. Select a month to view Arcachon sunrise and sunset times for the next 12 months.

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

Date	Sunrise times	Sunset times
Friday, 1st August 2025	05:51	20:30
Saturday, 16th August 2025	06:08	20:09
Sunday, 31st August 2025	06:26	19:43

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France - quick facts
Flight time^✝	1.5 to 2.5 hours
Time difference	UK +1 hour
Language(s)	French
Currency	Euro
Electricity	C + E plug (230V)
Driving side	Right
Why visit?	Beaches Culture Nature Nightlife
Tourist info	Atout France