In September, Roseville typically sees daytime highs of 31.6°C and overnight lows around 13.9°C. Compared to the annual average high of 23.8°C, September runs +7.9°C.
September in Roseville averages a daytime high of 31.6°C and an overnight low of 13.9°C.
September runs +7.9°C compared to Roseville's annual average high of 23.8°C, ranking #3 of 12 months by warmth.
Plan for daytime highs near 31.6°C and cooler evenings around 13.9°C.