January in Mahajanga averages a daily high of 32°C. Expect roughly 22.4 wet days totalling 594.4mm. Demanding conditions — pack for it and plan indoor options.
Across the year, the best time to visit Mahajanga is May–September.
Based on PHILIBERT TSIRANANA, MA (6.7km), 1995–2024. 23 years of January data.