April in Brest averages a daily high of 14.5°C with nights around 4.2°C. Expect roughly 10.6 wet days totalling 38.4mm. Generally workable, with some weather to plan around.
Across the year, the best time to visit Brest is May–September.
Based on BREST, BO (2.5km), 1995–2024. 20 years of April data.