In May, Simi Valley typically sees daytime highs of 22.3°C and overnight lows around 10.1°C. Compared to the annual average high of 22.3°C, May runs -0.0°C.
May in Simi Valley averages a daytime high of 22.3°C and an overnight low of 10.1°C.
May runs -0.0°C compared to Simi Valley's annual average high of 22.3°C, ranking #6 of 12 months by warmth.
Plan for daytime highs near 22.3°C and cooler evenings around 10.1°C.