In September, Mossel Bay typically sees daytime highs of 19.9°C and overnight lows around 10.6°C. Compared to the annual average high of 22.0°C, September runs -2.1°C.
September in Mossel Bay averages a daytime high of 19.9°C and an overnight low of 10.6°C.
September runs -2.1°C compared to Mossel Bay's annual average high of 22.0°C, ranking #9 of 12 months by warmth.
Plan for daytime highs near 19.9°C and cooler evenings around 10.6°C.