Saint Vincent and the Grenadines in March: Weather, Crowds & What to Expect

Kingstown & Leeward Coast (southwest St. Vincent)

February brings some of the clearest air of the year along the leeward coast, with plenty of sunshine and brisk trades that push brownish algae and surface scum offshore. The comfortable heat (highs commonly upper 20s°C) makes walking the waterfront and exploring local markets pleasant; snorkeling close to shore is good when seas are calm. Crowds are moderate; it’s a sensible month for visiting museums and taking day boat trips to the Grenadines.

Windward Highlands & La Soufrière (interior highlands)

March sees rising daytime temperatures in the valleys while the mountain tops retain cool breezes that cut through heavy shirts; the contrast makes layering essential for hikers. Rain showers are less frequent than in the wet season, so waterfalls like Dark View Falls and Vermont Waterfall are scenic and well-fed from earlier rains. Tourism picks up for trekking and birdwatching so book guides ahead on weekends.

Northern Grenadines (Bequia, Admiralty Bay & surroundings)

March ushers in consistently warm, sunny days with mellow evenings - perfect for beach time at Lower Bay or the quieter Friendship Bay. Small dive shops run frequent trips to popular reefs, and on good days visibility can exceed 20-30 meters around coral heads. Carry reef-safe sunscreen and a sun hat; late afternoons sometimes bring isolated showers but they rarely last long.

Central Grenadines (Mustique, Canouan, Mayreau, Tobago Cays)

March delivers prolonged calm seas and balmy days - the prime stretch for coral viewing and diving around Manta Ray reef areas near Canouan. Beaches like Salt Whistle Bay in Mayreau are reliably pleasant and supply runs between islands are regular. Expect higher prices and more people on popular sandbars but access to remote snorkel spots remains straightforward.

Southern Grenadines & Union Island (Clifton, Tobago Cays approaches)

March often brings very calm mornings followed by steady afternoon winds perfect for yachting the southern chain; snorkeling at the Cays is at its best under these conditions. Clifton remains a practical base for provisioning before longer day sails south, and visibility often reaches prime levels for spotting turtles. Pack polarized sunglasses and a camera with a waterproof case - the light on the water is excellent.