In September, Knysna typically sees daytime highs of 19.7°C and overnight lows around 11.3°C. Compared to the annual average high of 21.7°C, September runs -2.0°C.
September in Knysna averages a daytime high of 19.7°C and an overnight low of 11.3°C.
September runs -2.0°C compared to Knysna's annual average high of 21.7°C, ranking #10 of 12 months by warmth.
Plan for daytime highs near 19.7°C and cooler evenings around 11.3°C.