In September, Sihanoukville typically sees daytime highs of 31.1°C and overnight lows around 23.6°C. Compared to the annual average high of 31.8°C, September runs -0.7°C.
September in Sihanoukville averages a daytime high of 31.1°C and an overnight low of 23.6°C.
September runs -0.7°C compared to Sihanoukville's annual average high of 31.8°C, ranking #12 of 12 months by warmth.
Plan for daytime highs near 31.1°C and cooler evenings around 23.6°C.