Brittany weather in August 2025

Expect 20°C daytime maximum temperatures in the shade with on average 7 hours of sunshine per day in Brittany in August. Check more long-term weather averages for Brittany in August before you book your next holiday to Brittany in 2025/2026.

  • 20°C maximum daytime temperature in August in Brittany (Brest)20
    20°C max day temperature
  • 7 hours of sunshine per day
  • 15 days with some rainfall in August in Brittany (Brest)15
    15 days with some rainfall
  • 13°C minimum night-time temperature in August in Brittany (Brest)13
    13°C min night temperature
  • 14 hours of daylight per day in August in Brittany (Brest)14
    14 hours of daylight per day
  • No heat & humidity in August in Brittany (Brest)0
    No heat & humidity
  • 67 mm monthly rainfall in August in Brittany (Brest)67
    67 mm of monthly rainfall
  • UV (maximum) index 6 (High) in August in Brittany (Brest)6
    6 (High) UV index
  • 17°C sea temperature in August in Brittany (Brest)17
    17°C sea temperature

More about Brittany

Brittany by month

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

Recommended for Brittany

Summer France: Last minute offers & late deals

  • Browse late deals on holiday accommodation in France
  • Check out deals on seaside, countryside & mountain locations
  • Plus offers on prestige holiday properties
Go to Summer France deal >>

View all Summer France offers

The August weather guide for Brittany (Brest) 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 Brittany destinations

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

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

Back to top

More about France

How hot is it in Brittany in August?

Daytime temperatures usually reach 20°C in Brest, Brittany in August, falling to 13°C at night.

How sunny is it in Brittany in August?

There are normally 7 hours of bright sunshine each day in Brest, Brittany in August - that's 46% of daylight hours.

How warm is the sea around Brittany in August?

The average sea temperature around Brest, Brittany in August is 17°C.

Does it rain in Brittany in August?

There are usually 15 days with some rain in Brest, Brittany in August and the average monthly rainfall is 67mm.

Brittany August sunrise & sunset times

Browse the sunrise and sunset times for Brittany in August 2025. Select a month to view Brittany sunrise and sunset times for the next 12 months. The Brittany sunrise and sunset times shown below are for Brest.

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Friday, 1st August 2025 05:53 20:55
Saturday, 16th August 2025 06:13 20:30
Sunday, 31st August 2025 06:34 20:01

Related posts

Popular travel offers

Explore holidays in the sun for less

More holidays

Airport parking

More parking

Airport lounges

More lounges

Top ^