January in Bintulu averages a daily high of 30.3°C with nights around 23.7°C. Expect roughly 20.7 wet days totalling 484.8mm. Generally workable, with some weather to plan around.
Across the year, the best time to visit Bintulu is Any time of year.
Based on BINTULU, MY (3.7km), 1995–2024. 16 years of January data.