São Tomé and Príncipe in March: Weather, Crowds & What to Expect

Northern São Tomé (São Tomé city and northern coast)

Mornings in March often start cloudy and misty around the harbour, with heavy rain returning in lengthy spells through the month. Local markets-Mercado Central in São Tomé-can be lively between bands of rain, but street vendors will disappear at the first downpour; plan indoor stops like the Cocoa Museum for wet spells. Sea conditions worsen unpredictably; if you were hoping for a calm dive, consider booking with operators who monitor local weather closely. The city’s roças (old plantations) nearby brighten as streams run full, offering greener walks if trails aren’t washed out.

Central Highlands and Obô (Pico de São Tomé, Pico Cão Grande, forest interior)

Thick mist frequently shrouds the highlands in March, with rain often falling in long, steady spells that can close higher trails for safety. Streams and waterfalls reach full volume-good for seeing waterfalls like those around Lagoa Azul but risky to cross unsafely. Temperatures drop noticeably compared with the coast, especially at dawn and after rain; a fleece or insulated jacket is sensible. Local guides may alter routes to avoid washed-out paths, so keep plans flexible.

Southern São Tomé (southern coast, Ilhéu das Rolas and nearby islets)

March tends to produce prolonged rainy stretches that make the southern beaches less predictable for sunbathing, but waterfalls and forest walks are spectacularly green. Sea conditions can be rough after storms; snorkeling visibility drops during periods of heavy runoff from the coast. If you plan a beach-focused visit, aim for shorter excursions in the mornings when the weather often quiets. Expect that some coastal tracks may be washed out after exceptional downpours.

Príncipe Island (Santo António, Sundy, Obo Reserve)

March often brings some of the island’s heaviest rainfall, showering the coconut groves and making cascades in the interior dramatic and full. The island’s sandy beaches still have their moments of sun between storms but the sea becomes turbid after prolonged runoff, reducing snorkeling visibility. Flights and boats are more likely to be delayed by squalls; allow extra time around connections. Warm, quick-drying clothing and a sense of flexibility make exploring Príncipe in March rewarding despite the wet.