In May, Vannes typically sees daytime highs of 17.3°C and overnight lows around 8.3°C. Compared to the annual average high of 15.0°C, May runs +2.3°C.
May in Vannes averages a daytime high of 17.3°C and an overnight low of 8.3°C.
May runs +2.3°C compared to Vannes's annual average high of 15.0°C, ranking #5 of 12 months by warmth.
Plan for daytime highs near 17.3°C and cooler evenings around 8.3°C.