In September, Bintulu typically sees daytime highs of 30.9°C and overnight lows around 22.6°C. Compared to the annual average high of 30.6°C, September runs +0.3°C.
September in Bintulu averages a daytime high of 30.9°C and an overnight low of 22.6°C.
September runs +0.3°C compared to Bintulu's annual average high of 30.6°C, ranking #6 of 12 months by warmth.
Plan for daytime highs near 30.9°C and cooler evenings around 22.6°C.