In May, Colombo typically sees daytime highs of 30.9°C and overnight lows around 25.3°C. Compared to the annual average high of 30.4°C, May runs +0.5°C.
May in Colombo averages a daytime high of 30.9°C and an overnight low of 25.3°C.
May runs +0.5°C compared to Colombo's annual average high of 30.4°C, ranking #4 of 12 months by warmth.
Plan for daytime highs near 30.9°C and cooler evenings around 25.3°C.