Mantasoa, in Analamanga, Madagascar, is home to roughly 10,000 people in the Indian/Antananarivo time zone at 19°S latitude.
In 2025, Mantasoa recorded an average annual temperature of 61°F. The hottest temperatures reached 82°F in December; the coolest were 40°F in August. Total precipitation for the year was 81 inches, with the wettest month being December.
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