Climate Insights for Ambanja

The climate in Ambanja is warm and mild. The average annual temperature is 24°C and approximately 3009mm of precipitation falls per year. Ambanja receives a notable amount of rainfall throughout the year, including during its driest month. Ambanja 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: April, March, February. The coldest months are July, August, June, when temperatures can drop to 17°C.

Ambanja sees moderate temperature variation throughout the year, ranging from 17°C to 29°C. The warmest month is April, when average highs reach 29°C and the mean temperature sits around 25°C. July is the coolest month, with minimum temperatures around 17°C and an average of 22°C. On average, daily temperatures fluctuate by about 9°C between overnight lows and afternoon highs.

Ambanja is a very wet location, receiving approximately 3009mm of precipitation annually, which averages out to around 251mm per month. The wettest month is January, averaging 733mm of rainfall. March and December also tend to see above-average precipitation. The driest month is July, with just 46mm. That's 687mm less than January, 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.

Ambanja is relatively calm, with an average annual wind speed of 1km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is September, averaging 1km/h, though still comfortable for most outdoor activities. The calmest conditions occur in April, with average winds dropping to 1km/h, making it an ideal period for wind-sensitive activities. Wind conditions are fairly consistent throughout the year, varying by only 0km/h between the calmest and windiest months.

It is currently winter in Ambanja, which began on June 21, 2026. Ambanja 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 April at around 29°C, while the coldest stretch bottoms out in July near 17°C. Spring is next, beginning on September 23, 2026 — 92 days from now.

The best time to visit Ambanja is during May, June, July, August and September, when the weather is most comfortable for travellers. During these months, average temperatures hover around 22°C with modest rainfall averaging 62mm per month. By contrast, April can be uncomfortably hot with temperatures reaching 29°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 Ambanja 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.