In September, Dartford typically sees daytime highs of 18.5°C and overnight lows around 10.1°C. Compared to the annual average high of 13.6°C, September runs +4.9°C.
September in Dartford averages a daytime high of 18.5°C and an overnight low of 10.1°C.
September runs +4.9°C compared to Dartford's annual average high of 13.6°C, ranking #4 of 12 months by warmth.
Plan for daytime highs near 18.5°C and cooler evenings around 10.1°C.