In May, Chelm typically sees daytime highs of 18.0°C and overnight lows around 7.4°C. Compared to the annual average high of 11.6°C, May runs +6.5°C.
May in Chelm averages a daytime high of 18.0°C and an overnight low of 7.4°C.
May runs +6.5°C compared to Chelm's annual average high of 11.6°C, ranking #5 of 12 months by warmth.
Plan for daytime highs near 18.0°C and cooler evenings around 7.4°C.