In May, Wellington typically sees daytime highs of 29.3°C and overnight lows around 20.6°C. Compared to the annual average high of 27.7°C, May runs +1.6°C.
May in Wellington averages a daytime high of 29.3°C and an overnight low of 20.6°C.
May runs +1.6°C compared to Wellington's annual average high of 27.7°C, ranking #5 of 12 months by warmth.
Plan for daytime highs near 29.3°C and cooler evenings around 20.6°C.