Things to Do in Madagascar in September
September weather, activities, events & insider tips
September Weather in Madagascar
Is September Right for You?
Advantages
- Prime whale watching season - humpback whales migrate through the Sainte Marie channel from July through September, with peak activity in early September. Water visibility reaches 20-30 m (65-98 ft) making this the absolute best time to see mothers with calves from boat tours or even from shore at certain points along the east coast.
- Driest month of the year with only around 30 mm (1.2 inches) of rain and minimal humidity at 65%, making it ideal for multi-day treks through rainforests and spiny forests without dealing with muddy trails or leeches that plague the wetter months from November through April.
- Wildlife activity peaks as lemurs are most active during Madagascar's late winter/early spring - you'll see indris, sifakas, and brown lemurs foraging heavily to prepare for the upcoming breeding season in October. Bird migration also brings interesting species through, particularly along coastal areas.
- Comfortable temperatures for hiking with cool mornings around 16°C (61°F) perfect for starting early treks, warming to pleasant 26°C (79°F) afternoons. The strong trade winds keep things from feeling too hot during midday, though they do kick up dust in drier western regions.
Considerations
- Peak tourist season means higher prices across the board - expect accommodations to cost 30-40% more than low season rates, and popular lodges in Andasibe and Ranomafana book out 2-3 months ahead. Domestic flights on Air Madagascar fill quickly, particularly the Antananarivo to Nosy Be and Tulear routes.
- Strong winds averaging 25-35 km/h (15-22 mph) can make boat crossings to islands like Nosy Be and Ile Sainte Marie quite rough, with occasional cancellations during particularly windy days. The wind also creates challenging conditions for photography with dust and vegetation constantly moving.
- Western and southern regions experience significant dust during September's dry windy conditions - places like Morondava and the Avenue of the Baobabs get genuinely dusty, coating everything including your camera gear. You'll want to bring protective bags for electronics and be prepared for gritty conditions in spiny forest areas.
Best Activities in September
Humpback whale watching from Ile Sainte Marie
September sits right at the tail end of whale season, with mothers and calves still passing through the narrow channel between Sainte Marie and the mainland. The water clarity in September is exceptional compared to earlier months, and you'll often spot whales from shore at points along the island's west coast. Half-day boat tours typically get within 50-100 m (165-330 ft) of the whales, and the cooler temperatures make being on the water far more comfortable than the humid summer months. Early September is better than late September as whale numbers drop off toward month's end.
Multi-day rainforest trekking in Masoala National Park
September's dry conditions transform Masoala from the muddy, leech-infested challenge of the wet season into an actually manageable trekking experience. Trails are firm, river crossings are lower, and you can focus on spotting red ruffed lemurs and aye-ayes rather than constantly battling mud. The park sees relatively few visitors even in peak season due to its remote location requiring boat access from Maroantsetra. Three to four-day treks with camping let you penetrate deeper into primary rainforest where wildlife viewing is exceptional.
Spiny forest exploration around Ifaty and Tulear
The bizarre spiny forests of southwestern Madagascar are at their most accessible in September when trails are completely dry and temperatures are tolerable for walking among the otherworldly octopus trees and Madagascar's endemic baobab species. September's strong winds do kick up dust, but they also keep temperatures from becoming oppressive. This is prime time to spot ring-tailed lemurs, Verreaux's sifakas, and the incredible radiated tortoises before the breeding season chaos begins in October.
Avenue of the Baobabs photography at sunrise and sunset
September offers the clearest skies of the year for photographing Madagascar's most iconic landscape, though you'll be sharing the experience with other photographers as this is peak season. The dry season means the baobabs are leafless, showing off their dramatic silhouettes. Mornings around 6am offer soft golden light with fewer people, while sunset around 5:45pm draws crowds but delivers spectacular color. The strong winds can be challenging for tripod work, so bring weight bags or rocks to stabilize your setup.
Indri lemur tracking in Andasibe-Mantadia National Park
September brings peak activity for indris, Madagascar's largest lemurs, as they prepare for the October breeding season. Their haunting morning calls echo through the rainforest starting around 6am, and guides can typically locate family groups within 1-2 hours of walking. The dry trails in September make the 4-6 km (2.5-3.7 miles) morning circuits much easier than during wet season, and you'll also encounter diademed sifakas, brown lemurs, and if you're lucky, the nocturnal aye-aye on night walks.
Tsingy de Bemaraha limestone pinnacle exploration
The dramatic limestone karst formations of Tsingy de Bemaraha are only accessible during dry season from May through November, and September offers the best balance of dry conditions without the intense heat that builds in October-November. The via ferrata circuits through the razor-sharp pinnacles require decent fitness and no fear of heights, with suspension bridges and ladders connecting viewing platforms 50-60 m (165-195 ft) above the forest floor. Wildlife includes Decken's sifakas that somehow navigate the sharp limestone with ease.
September Events & Festivals
Humpback whale migration peak
While not a formal festival, early September represents the tail end of the annual humpback whale migration through Malagasy waters. Ile Sainte Marie becomes the focal point with multiple daily sightings from shore and boat tours. Local communities along the east coast celebrate the whales' presence with informal gatherings and the island takes on a festive atmosphere with increased visitors and evening gatherings at beachfront restaurants.
Famadihana preparation season
September marks the beginning of preparations for Famadihana, the traditional turning of the bones ceremony that occurs from September through November. While you're unlikely to attend an actual ceremony without local connections and proper invitation, you'll notice increased activity around ancestral tombs in the highlands, with families beginning preparations and discussions. This offers cultural insight into one of Madagascar's most important traditions, though actual attendance requires genuine invitation and cultural sensitivity.