In September, Poitiers typically sees daytime highs of 21.9°C and overnight lows around 10.9°C. Compared to the annual average high of 15.9°C, September runs +6.0°C.
September in Poitiers averages a daytime high of 21.9°C and an overnight low of 10.9°C.
September runs +6.0°C compared to Poitiers's annual average high of 15.9°C, ranking #4 of 12 months by warmth.
Plan for daytime highs near 21.9°C and cooler evenings around 10.9°C.