In September, Maidenhead typically sees daytime highs of 17.9°C and overnight lows around 9.8°C. Compared to the annual average high of 13.2°C, September runs +4.7°C.
September in Maidenhead averages a daytime high of 17.9°C and an overnight low of 9.8°C.
September runs +4.7°C compared to Maidenhead's annual average high of 13.2°C, ranking #4 of 12 months by warmth.
Plan for daytime highs near 17.9°C and cooler evenings around 9.8°C.