Planning for the weather is an important factor for making your trip to Maroantsetra a success, especially when you're splurging. The hottest months are usually December and January, with an average temperature of 26°C, while the coldest months are August and July, with an average of 22°C. The rainiest months in Maroantsetra are January, March, February and December, with each month seeing an average of 274 mm of rainfall.