How warm is St. Lucia, St. Vincent & Grenada in March?

Typical highs are about 83°F and the sea is about 81°F. That is warm enough for long swims without a wetsuit.

Is there sargassum in St. Lucia, St. Vincent & Grenada in March?

In a typical year seaweed is low in March. It is usually lightest in May and June and heaviest in August and September. Landings vary a lot by year, wind and currents; Veabird's weekly sargassum report and each beach's page have the current forecast.

Is March hurricane season in St. Lucia, St. Vincent & Grenada?

No. Storm risk is very low in March.

How crowded is St. Lucia, St. Vincent & Grenada in March?

Typically very busy, around College & school spring break and Semana Santa / Easter. The quietest months are usually September and October.

St. Lucia, St. Vincent & Grenada in March

March is a good month for St. Lucia, St. Vincent & Grenada: a typical day grades B+, the 6th best of the 12 months. Expect highs near 83°F, water around 81°F and about a 40% chance of rain on a given day. Sargassum (seaweed) is usually low in March. Beaches are typically very busy (College & school spring break and Semana Santa / Easter).

Typical dayB+6th of 12 months

Highs / water83°FSea 81°F

Rain chance40%on a given day

SeaweedLowtypical year

CrowdsVery busyCollege & school spring break

Storm riskVery lowoutside storm season

St. Lucia, St. Vincent & Grenada month by month

Typical grade and high for each month. Higher is better: A+ to F.

February: B+ · March: B+ · April: B+. The best months are usually April, May and October, and the weakest are July and August.

Best beaches in St. Lucia, St. Vincent & Grenada in March

Resorts with the best typical March, and their grades for the next few days.

Beach	Typical Mar	Seaweed	This week
Beaches Resort Saint Vincent	A-	Very low	SatA-SunBMonB-TueB+WedA-
Palm Island Resort & Spa	A-	Very low	SatBSunB+MonB-TueA-WedA
Soho Beach House Canouan	A-	Very low	SatB+SunBMonBTueA-WedA
Salt Whistle Bay Club Hotel	A-	Very low	SatBSunB+MonBTueA-WedA
Saya Villas	A-	Very low	SatBSunB+MonBTueA-WedA
David's Beach Hotel	A-	Very low	SatBSunB+MonB-TueA-WedA-
Clifton Beach Hotel	A-	Very low	SatBSunB+MonB-TueA-WedA
Point Bay Resort	A-	Very low	SatBSunC+MonC+TueBWedB+

Grades for the next few days from Veabird's beach forecast, updated Oct 3, 18:00 UTC. Higher is better: A+ to F.

Better beach options in March

Elsewhere in the Caribbean, Cuba's Cays (A-) and Varadero & Havana (A-) usually grade higher in March. Further afield: Huatulco (A), the Yucatán Gulf Coast (A) and Puerto Vallarta (A-). Every destination in March.

Questions

Is March a good time to visit St. Lucia, St. Vincent & Grenada?: March is a good month for St. Lucia, St. Vincent & Grenada: a typical day grades B+, the 6th best of the 12 months. Expect highs near 83°F, water around 81°F and about a 40% chance of rain on a given day. Sargassum (seaweed) is usually low in March. Beaches are typically very busy (College & school spring break and Semana Santa / Easter).
How warm is St. Lucia, St. Vincent & Grenada in March?: Typical highs are about 83°F and the sea is about 81°F. That is warm enough for long swims without a wetsuit.
Is there sargassum in St. Lucia, St. Vincent & Grenada in March?: In a typical year seaweed is low in March. It is usually lightest in May and June and heaviest in August and September. Landings vary a lot by year, wind and currents; Veabird's weekly sargassum report and each beach's page have the current forecast.
Is March hurricane season in St. Lucia, St. Vincent & Grenada?: No. Storm risk is very low in March.
How crowded is St. Lucia, St. Vincent & Grenada in March?: Typically very busy, around College & school spring break and Semana Santa / Easter. The quietest months are usually September and October.

Plan it

Windward Islands: this week's forecast, beach by beach
Caribbean Beach Report: this week, updated every Monday
Compare dates and beaches on the map

Typical-month numbers from Veabird's year-ahead outlook for the 66 resorts here (median resort): 6 years of ERA5 climate normals, the seasonal pattern of the Atlantic sargassum belt, holiday crowd calendars and historical storm tracks. Any given year can differ; check the 16-day forecast before you go.