September in Tawau averages a daily high of 31.4°C with nights around 23.1°C. Expect roughly 11.7 wet days totalling 125mm. Generally workable, with some weather to plan around.
Across the year, the best time to visit Tawau is Any time of year.
Based on TAWAU, MY (26.7km), 1995–2024. 13 years of September data.