In May, Perris typically sees daytime highs of 25.9°C and overnight lows around 9.7°C. Compared to the annual average high of 25.5°C, May runs +0.5°C.
May in Perris averages a daytime high of 25.9°C and an overnight low of 9.7°C.
May runs +0.5°C compared to Perris's annual average high of 25.5°C, ranking #6 of 12 months by warmth.
Plan for daytime highs near 25.9°C and cooler evenings around 9.7°C.