Marovoay's climate is characterized by a relatively constant temperature throughout the year, with averages ranging from 25°C in June and July to 29°C in December. The warmest months are typically November to February, with temperatures often reaching as high as 38°C. The cooler months of June and July see temperatures drop to around 15°C at night, but still average a relatively mild 25°C during the day. April and September experience similar temperature fluctuations, with slight variations in daily highs. Overall, Marovoay's climate is generally warm to hot year-round, with minimal seasonal variation.