In September, Cambridge typically sees daytime highs of 18.4°C and overnight lows around 10.4°C. Compared to the annual average high of 13.4°C, September runs +5.0°C.
September in Cambridge averages a daytime high of 18.4°C and an overnight low of 10.4°C.
September runs +5.0°C compared to Cambridge's annual average high of 13.4°C, ranking #4 of 12 months by warmth.
Plan for daytime highs near 18.4°C and cooler evenings around 10.4°C.