Climate Insights for Mahanoro

The climate in Mahanoro is warm and mild. The average annual temperature is 24°C and approximately 2118mm of precipitation falls per year. Mahanoro receives a notable amount of rainfall throughout the year, including during its driest month. Mahanoro is in the Southern Hemisphere. The seasons are reversed — summer runs from December to February, while winter falls between June and August. The summer months are: January, December, February. The coldest months are July, August, September, when temperatures can drop to 19°C.

Mahanoro has relatively stable temperatures year-round, staying within a 10°C range. The warmest month is January, when average highs reach 29°C and the mean temperature sits around 26°C. July is the coolest month, with minimum temperatures around 19°C and an average of 21°C. Daily temperature variation is modest, with an average difference of 5°C between highs and lows.

Mahanoro is a very wet location, receiving approximately 2118mm of precipitation annually, which averages out to around 176mm per month. The wettest month is March, averaging 379mm of rainfall. February and January also tend to see above-average precipitation. The driest month is September, with just 56mm. That's 323mm less than March, the wettest month. Rainfall is heavily concentrated in certain months, creating a distinct wet and dry season. Visitors should plan around these patterns, as the difference between peak and low months is dramatic.

Mahanoro is mildly breezy, with an average annual wind speed of 15km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is November, averaging 18km/h, though still comfortable for most outdoor activities. The calmest conditions occur in August, with average winds dropping to 13km/h, making it an ideal period for wind-sensitive activities. Wind conditions are fairly consistent throughout the year, varying by only 5km/h between the calmest and windiest months. Wind tends to pick up during the summer months. The seasonal averages are 13km/h in winter, 16km/h in spring, 17km/h in summer, 14km/h in autumn.

It is currently autumn in Mahanoro, which began on March 20, 2026. Mahanoro is in the Southern Hemisphere, where the seasons are reversed — spring starts in September, summer in December, autumn in March, and winter in June. The warmest period peaks in January at around 29°C, while the coldest stretch bottoms out in July near 19°C. Winter is next, beginning on June 21, 2026 — 89 days from now.

The best time to visit Mahanoro is during August, September and October, when the weather is most comfortable for travellers. During these months, average temperatures hover around 22°C with modest rainfall averaging 68mm per month. By contrast, January can be uncomfortably hot with highs reaching 29°C, while July is the coldest period with lows dropping to 19°C. A light rain jacket is recommended, though showers are generally brief and shouldn't disrupt your plans.

The table below shows monthly climate averages for Mahanoro based on historical weather data. Min and max temperatures represent typical overnight lows and afternoon highs for each month, shown in degrees Celsius (°C). Precipitation is measured in millimetres (mm) and indicates the average total rainfall per month. Wind speed is the average sustained speed in kilometres per hour (km/h). All values are based on averages from over 10 years of historical weather data. The current month is highlighted for quick reference.