The south and west coasts of Madagascar belong to a different century. From May through October the reliable south-east trades funnel around the island's southern tip and push you northward up the Mozambique Channel on a broad reach — comfortable, consistent sailing with 15 to 25 knots and a moderate swell that flattens as you tuck behind the headlands.
Day-sailing between baobab-lined shores feels genuinely surreal; you anchor off forests that exist nowhere else on earth and row ashore to find ring-tailed lemurs regarding you with complete indifference.
Stand-out stops include the sheltered bay at Tulear (Toliara), a practical reprovisioning town with colourful local markets and a useful yacht anchorage off the Hotel de la Rascasse. Further north, the Nosy Ve coral atoll offers spectacular holding in white sand and breeding red-tailed tropicbirds overhead. The Tsiribihina River mouth rewards those with a shallow-draught vessel and a spirit of patience.
Night passages along this coast are manageable but demand vigilance — unlit fishing pirogues sit low and dark, and the charts carry genuine gaps, so reduce speed and keep a sharp watch.
Charter logistics are thin. Nosy Be in the north is the main bareboat base, operated by a small number of French and local operators; reaching the south coast means either a lengthy offshore passage south or picking up a local skippered charter from Tulear itself. A skippered arrangement is strongly advised for anyone unfamiliar with Malagasy waters — local knowledge around the reefs is irreplaceable.
Provisioning outside Tulear is basic at best, so load heavily before departure.
Carry paper charts and full offline vector charts as backup; this coast rewards the self-sufficient and punishes the underprepared.