St. Kitts Marriott Resort beach & sargassum forecast
Frigate Bay, St. Kitts, KN · Leeward Islands (Anguilla to Antigua), Antigua & Barbuda · 17.292, -62.696
Updated : very low seaweed, beach grade B+, sea 85°F.
Also listed as Marriott's St. Kitts Beach Club.
Veabird's call
Go Saturday for an A- with very low seaweed, 85°F water and only an 8% chance of rain.
December and January grade best. Seaweed is usually lowest in December on this east facing beach.
Grades from Veabird's beach forecast; wording by AI (Muse Spark), checked against the forecast. Updated Nov 12, 18:00 UTC.
Tell me when St. Kitts Marriott Resort is clear
One email when the seaweed clears or the beach grades A, at most once a week per beach. We only ask for your email address, and every email has a one-click unsubscribe.
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Questions about St. Kitts Marriott Resort
Does St. Kitts Marriott Resort get sargassum (seaweed)?
Only a little in most years. At St. Kitts Marriott Resort the typical-year risk stays low, even around July, the usual peak (moderate or heavier seaweed on the beach in an estimated 23% of weeks). Landings vary by year, wind and currents.
How warm is the water at St. Kitts Marriott Resort?
About 84°F in November. The sea is warmest in September and October (about 86°F) and coolest in February (about 80°F).
When is the best time to visit St. Kitts Marriott Resort?
For warm water and dry weather, aim for November through March. November is usually the quietest of those, with about 17 rainy days and a sea near 84°F.
When is hurricane season at St. Kitts Marriott Resort, and how often do storms hit?
The Atlantic hurricane season runs June through November and peaks around September. A tropical storm passed within 86 miles of St. Kitts Marriott Resort in 22 of the 55 seasons from 1971 to 2025, and a hurricane within 58 miles in 9. The riskiest stretch is around August 27, when the chance of a storm passing in any one week is about 6%; across all of August it is about 18%. Flexible bookings and travel insurance help in the peak weeks.
What guests say about Marriott's St. Kitts Beach Club
Guests like Friendly staff · Beautiful rooms · Great amenities · Overall positive experience
Watch for Location issues regarding the beach · Unexpected checkout charge
- Cleanliness
9.3 - Service
9.8 - Location
8.4 - Room Quality
9.3 - Amenities
9.3 - Value for Money
8.8 - Food and Beverage
8.8 - Overall Experience
9.8
Read all 60 reviews · Compare on Expedia
Scores and reviews come from guests who stayed, through LiteAPI (Nuitée). The likes, watch-fors and category scores are an AI summary of those reviews. Partner links: Veabird may earn a commission.
Sargassum season at St. Kitts Marriott Resort
Low sargassum risk year-round at St. Kitts Marriott Resort: even around July, the usual peak, Veabird estimates moderate or heavier seaweed on the beach in about 23% of weeks. Actual landings vary a lot by year, wind and currents; check the live conditions above.
Estimated share of weeks in each month with moderate or heavier seaweed on the beach. Veabird takes the landing season measured on Martinique's shores (Madininair's hydrogen-sulfide sensors beside stranding sites, 2018–2026) and scales it by how often NOAA AOML satellites see notable seaweed within about 20 km of this stretch of coast: 7% of weeks here on average, against 14% off Martinique, so 52% of that season. The satellite share (2016–2024, the top fifth of all coast-weeks, adjusted for this beach's exposure of 85%) measures seaweed offshore, not on the sand: off the Riviera Maya it reads high even in winter, when little lands. Very low under 10%, Low 10–24%, Moderate 25–44%, High 45–69%, Very high 70%+. Beach faces 70°; onshore winds from that direction push seaweed ashore. Satellite sargassum data: USF Optical Oceanography Lab (Sargassum Watch System) via NOAA AOML. The satellite record as open data.
The Leeward Islands month by month
Typical weather, water temperature, seaweed and crowds for every month: the best time to visit the Leeward Islands.
- The Leeward Islands in January
- The Leeward Islands in February
- The Leeward Islands in March
- The Leeward Islands in April
- The Leeward Islands in May
- The Leeward Islands in June
- The Leeward Islands in July
- The Leeward Islands in August
- The Leeward Islands in September
- The Leeward Islands in October
- The Leeward Islands in November
- The Leeward Islands in December
Weather, water & seaweed by month at St. Kitts Marriott Resort
Average highs run from about 80°F in January and February to 86°F in September. The sea is warmest in September and October (about 86°F) and coolest in February (about 80°F). December is usually the driest, with about 14 rainy days; September is the wettest, with about 21 rainy days.
| Month | Avg high | Sea | Rainy days | Sargassum |
|---|---|---|---|---|
| Jan | 80°F | 81°F | 15 | Very low |
| Feb | 80°F | 80°F | 15 | Very low |
| Mar | 81°F | 81°F | 16 | Very low |
| Apr | 82°F | 82°F | 18 | Very low |
| May | 83°F | 83°F | 19 | Low |
| Jun | 85°F | 84°F | 18 | Low |
| Jul | 85°F | 84°F | 20 | Low |
| Aug | 85°F | 85°F | 20 | Low |
| Sep | 86°F | 86°F | 21 | Low |
| Oct | 85°F | 86°F | 20 | Very low |
| Nov | 83°F | 84°F | 17 | Very low |
| Dec | 81°F | 82°F | 14 | Very low |
Monthly averages from 6 years of ERA5 reanalysis (Open-Meteo) for this area's 0.5° grid cell; rainy days have at least 1 mm (0.04 in). Sargassum is the typical-year estimate described above. Any given year can differ.
Cleanup & barriers
- Offshore barriers
- Few booms (some in St. Martin/St. Barths lagoons)
- Public cleanup
- Collectivité crews on French side; hotels elsewhere; Orient Bay and Grand Cul-de-Sac frequently inundated
- Resort crews
- Luxury resorts rake daily
- Typical clearing time
- Same-day at resorts; windward bays can stay fouled for weeks in peak years
Safety notes
US State Dept: Antigua & Barbuda, St. Kitts & Nevis, Anguilla Level 1; Sint Maarten Level 1; St. Martin (France) Level 2 per France (verify)
- Petty and vehicle crime in Philipsburg/Marigot; watch valuables
- Drive left on English islands, right on French side
- High hurricane exposure (Irma 2017, Luis 1995)
Check official advisories and local flags before swimming. Decomposing sargassum releases hydrogen sulfide; avoid heavy piles.
Things to do near Frigate Bay, St. Kitts, KN
- Nelson's Dockyard, Antigua
- Shoal Bay East, Anguilla
- Maho Beach plane-spotting, SXM
- Gustavia shopping, St. Barths
- Brimstone Hill Fortress, St. Kitts
- Barbuda Frigate Bird Sanctuary
Fly in for the best beach days
Suggested dates are a week in December. Change them to match the live forecast above.
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Nearest airports
- Robert L. Bradshaw Intl (St. Kitts) (SKB), ~3 km
Nearby resorts
- Park Hyatt St. Kitts Banana Bay, St. Kitts, KN · 8 km
- Paradise Beach Nevis Pinney's Beach, Nevis, KN · 14 km
- Four Seasons Resort Nevis Pinney's Beach, Nevis, KN · 17 km
- Eden Rock - St Barths St-Jean, St. Barthélemy · 69 km
- Le Barthélemy Hôtel & Spa Grand Cul-de-Sac, St. Barthélemy · 69 km
- Pearl Beach St. Barth St-Jean, St. Barthélemy · 70 km
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