In September, Nancy typically sees daytime highs of 19.8°C and overnight lows around 9.5°C. Compared to the annual average high of 13.7°C, September runs +6.0°C.
September in Nancy averages a daytime high of 19.8°C and an overnight low of 9.5°C.
September runs +6.0°C compared to Nancy's annual average high of 13.7°C, ranking #4 of 12 months by warmth.
Plan for daytime highs near 19.8°C and cooler evenings around 9.5°C.