VeabirdBeach

St. Lucia, St. Vincent & Grenada in September

September is one of the weakest months for a beach trip to St. Lucia, St. Vincent & Grenada: a typical day grades B+, the 10th best of the 12 months. Expect highs near 86°F, water around 86°F and about a 58% chance of rain on a given day. Sargassum (seaweed) is usually moderate in September. Beaches are typically quiet (Labor Day weekend and Mexican Independence Day). It is hurricane season, with moderate storm risk.

Typical dayB+10th of 12 months
Highs / water86°FSea 86°F
Rain chance58%on a given day
SeaweedModeratetypical year
CrowdsQuietLabor Day weekend
Storm riskModeratehurricane season

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

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

August: B · September: B+ · October: 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 September

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

BeachTypical SepSeaweedThis week
Beaches Resort Saint VincentA-Very lowSatA-SunBMonB-TueB+WedA-
Palm Island Resort & SpaA-Very lowSatBSunB+MonB-TueA-WedA
Soho Beach House CanouanA-Very lowSatB+SunBMonBTueA-WedA
Salt Whistle Bay Club HotelA-LowSatBSunB+MonBTueA-WedA
Saya VillasA-Very lowSatBSunB+MonBTueA-WedA
David's Beach HotelA-LowSatBSunB+MonB-TueA-WedA-
Chatham Bay Club & ResortA-LowSatB+SunA-MonBTueA-WedA
Clifton Beach HotelA-Very lowSatBSunB+MonB-TueA-WedA

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 September

Elsewhere in the Caribbean, Aruba, Bonaire & Curaçao (A-) and the US Virgin Islands (A-) usually grade higher in September. Further afield: Maui (A), Oʻahu (A) and Kauaʻi (A). Every destination in September.

Questions

Is September a good time to visit St. Lucia, St. Vincent & Grenada?
September is one of the weakest months for a beach trip to St. Lucia, St. Vincent & Grenada: a typical day grades B+, the 10th best of the 12 months. Expect highs near 86°F, water around 86°F and about a 58% chance of rain on a given day. Sargassum (seaweed) is usually moderate in September. Beaches are typically quiet (Labor Day weekend and Mexican Independence Day). It is hurricane season, with moderate storm risk.
How warm is St. Lucia, St. Vincent & Grenada in September?
Typical highs are about 86°F and the sea is about 86°F. That is warm enough for long swims without a wetsuit.
Is there sargassum in St. Lucia, St. Vincent & Grenada in September?
In a typical year seaweed is moderate in September. 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 September hurricane season in St. Lucia, St. Vincent & Grenada?
September falls in the tropical storm season; the typical risk on a given day is moderate. It peaks in September. Travel insurance and flexible bookings help.
How crowded is St. Lucia, St. Vincent & Grenada in September?
Typically quiet, around Labor Day weekend and Mexican Independence Day. The quietest months are usually September and October.

Plan it

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.

Coordinates approximate; forecasts are estimates, not safety guidance.