About Brest, Brittany's Climate & Weather History

With a population of around 145,000, Brest sits in Brittany, France. The city operates in the Central European time zone.

In 2025, Brest recorded an average annual temperature of 55°F. The hottest temperatures reached 91°F in August; the coolest were 31°F in December. Total precipitation for the year was 47 inches, with the wettest month being January.