The climate is warm throughout the year in Antananarivo. The temperature throughout the year averages in the mid 60s. Note that, given its location in the Southern Hemisphere, the seasons are switched. In the summer (December through March), high temperatures are in the low 80s, while low temperatures average in the upper 50s to low 60s. During the winter, (June through September) high temperatures average in the upper 60s to low 70s, and low temperatures average in the upper 40s to low 50s. Rainfall occurs throughout the year, though most falls during the summer months, with the most rainfall occuring during the months of December and January.

Your best bet for travel to Madagascar is during the mid-year, when temperatures and precipitation are both low. It may be a good idea to avoid the rainy season, especially if your plans involve traveling off the beaten path, which will be made that much more difficult if you have to trek through muddy roadways.