January in Nusantara averages a daily high of 31.3°C. Expect roughly 6.4 wet days totalling 68.8mm. Generally workable, with some weather to plan around.
Across the year, the best time to visit Nusantara is July–September.
Based on SEPINGGAN, ID (38.7km), 1995–2024. 14 years of January data.