In September, Bontang typically sees daytime highs of 31.2°C and overnight lows around 22.6°C. Compared to the annual average high of 30.6°C, September runs +0.5°C.
September in Bontang averages a daytime high of 31.2°C and an overnight low of 22.6°C.
September runs +0.5°C compared to Bontang's annual average high of 30.6°C, ranking #2 of 12 months by warmth.
Plan for daytime highs near 31.2°C and cooler evenings around 22.6°C.