In May, Niort typically sees daytime highs of 19.3°C and overnight lows around 8.6°C. Compared to the annual average high of 16.4°C, May runs +2.9°C.
May in Niort averages a daytime high of 19.3°C and an overnight low of 8.6°C.
May runs +2.9°C compared to Niort's annual average high of 16.4°C, ranking #5 of 12 months by warmth.
Plan for daytime highs near 19.3°C and cooler evenings around 8.6°C.