In May, Saint-Brieuc typically sees daytime highs of 15.9°C and overnight lows around 8.3°C. Compared to the annual average high of 14.1°C, May runs +1.8°C.
May in Saint-Brieuc averages a daytime high of 15.9°C and an overnight low of 8.3°C.
May runs +1.8°C compared to Saint-Brieuc's annual average high of 14.1°C, ranking #5 of 12 months by warmth.
Plan for daytime highs near 15.9°C and cooler evenings around 8.3°C.