Is June a good time to visit Madagascar? Yes, June is considered the coldest month in Madagascar, but temperatures remain pleasant, not dropping below 20°C. Having some warmer cloths is a good idea while traveling through the highlands, especially for chillier evenings. It is the start of the whale season in Madagascar. The coast is fantastic for swimming, snorkelling, scuba diving and boat trips. June is the month of rice harvesting which can be really spectacular to watch. Generally we highly recommend visiting the big island during the month of June. All of our tours are recommended during this month and you can see more details below.