In May, Weymouth typically sees daytime highs of 14.5°C and overnight lows around 8.4°C. Compared to the annual average high of 12.9°C, May runs +1.7°C.
May in Weymouth averages a daytime high of 14.5°C and an overnight low of 8.4°C.
May runs +1.7°C compared to Weymouth's annual average high of 12.9°C, ranking #5 of 12 months by warmth.
Plan for daytime highs near 14.5°C and cooler evenings around 8.4°C.