In September, Nelson typically sees daytime highs of 11.0°C and overnight lows around 3.8°C. Compared to the annual average high of 13.3°C, September runs -2.3°C.
September in Nelson averages a daytime high of 11.0°C and an overnight low of 3.8°C.
September runs -2.3°C compared to Nelson's annual average high of 13.3°C, ranking #8 of 12 months by warmth.
Plan for daytime highs near 11.0°C and cooler evenings around 3.8°C.