January in Kupang averages a daily high of 30.9°C with nights around 23.9°C. Expect roughly 7.5 wet days totalling 91.5mm. Generally workable, with some weather to plan around.
Across the year, the best time to visit Kupang is May–September.
Based on KUPANG ELTARI, ID (6.6km), 1995–2024. 18 years of January data.