In May, Nagasaki typically sees daytime highs of 22.1°C and overnight lows around 14.7°C. Compared to the annual average high of 19.5°C, May runs +2.5°C.
May in Nagasaki averages a daytime high of 22.1°C and an overnight low of 14.7°C.
May runs +2.5°C compared to Nagasaki's annual average high of 19.5°C, ranking #6 of 12 months by warmth.
Plan for daytime highs near 22.1°C and cooler evenings around 14.7°C.