August in Toamasina averages a daily high of 26.2°C with nights around 17.1°C. Expect roughly 21.9 wet days totalling 219mm. Generally workable, with some weather to plan around.
Across the year, the best time to visit Toamasina is May–November.
Based on TOAMASINA, MA (3.6km), 1995–2024. 24 years of August data.