Royal Palm Beach Resort beach & sargassum forecast
Simpson Bay, Sint Maarten · Leeward Islands (Anguilla to Antigua), Antigua & Barbuda · 18.035, -63.094
Seaweed, water and beach grades update every 6 hours; live conditions load below.
Also listed as Hilton Vacation Club Royal Palm St Maarten.
Tell me when Royal Palm Beach 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 Royal Palm Beach Resort
Does Simpson Bay get sargassum (seaweed)?
Yes, in season. At Royal Palm Beach Resort the typical-year risk is moderate or higher in June and July and peaks in July (moderate). How much lands varies a lot by year, wind and currents.
What are the worst and best months for seaweed at Royal Palm Beach Resort?
Worst: July, though even then the typical risk is moderate. Best: August through May, when the risk is usually low.
How warm is the water at Royal Palm Beach Resort?
About 86°F in October. 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 Royal Palm Beach Resort?
For warm water, low seaweed and dry weather, aim for January, February, March, May and December. May is usually the quietest of those, with about 10 rainy days and a sea near 83°F; seaweed risk is low.
Does Royal Palm Beach Resort have a sargassum barrier or beach cleanup?
Veabird doesn't track barriers hotel by hotel; this is what the Leeward Islands area does. Offshore barriers in Leeward Islands: few booms (some in St. Martin/St. Barths lagoons). Resort crews: Luxury resorts rake daily. Typical clearing time: Same-day at resorts; windward bays can stay fouled for weeks in peak years.
When is hurricane season in Leeward Islands?
The Atlantic hurricane season runs June through November and peaks around September. Veabird rates the storm risk in Leeward Islands as moderate compared with the other beaches it covers; flexible bookings and travel insurance help in the peak months.
What guests say about Hilton Vacation Club Royal Palm St Maarten
Guests like Clean rooms · Friendly staff · Great location · Spacious rooms
Watch for Breakfast options should improve · Some noise issues reported
- Cleanliness
8.7 - Service
9.2 - Location
9.3 - Room Quality
9.0 - Amenities
8.7 - Value for Money
8.6 - Food and Beverage
8.4 - Overall Experience
9.2
Read all 583 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.
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Sargassum season at Royal Palm Beach Resort
Sargassum risk at Royal Palm Beach Resort typically peaks around July (moderate: moderate or heavier seaweed on the beach in an estimated 31% of weeks). Lowest-risk months: January, February, March, April, May, August, September, October, November and December. 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: 9% of weeks here on average, against 14% off Martinique, so 68% of that season. The satellite share (2016–2024, the top fifth of all coast-weeks, adjusted for this beach's exposure of 25%) 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 242°; onshore winds from that direction push seaweed ashore. The satellite record as open data.
Weather, water & seaweed by month at Royal Palm Beach Resort
Average highs run from about 79°F in February and March to 85°F in September. The sea is warmest in September and October (about 86°F) and coolest in February (about 80°F). June is usually the driest, with about 9 rainy days; October is the wettest, with about 17 rainy days. Seaweed risk is usually lowest in December and highest in July.
| Month | Avg high | Sea | Rainy days | Sargassum |
|---|---|---|---|---|
| Jan | 80°F | 81°F | 11 | Very low |
| Feb | 79°F | 80°F | 10 | Very low |
| Mar | 79°F | 81°F | 10 | Low |
| Apr | 80°F | 81°F | 12 | Low |
| May | 82°F | 83°F | 10 | Low |
| Jun | 83°F | 83°F | 9 | Moderate |
| Jul | 84°F | 84°F | 13 | Moderate |
| Aug | 84°F | 85°F | 14 | Low |
| Sep | 85°F | 86°F | 16 | Low |
| Oct | 84°F | 86°F | 17 | Very low |
| Nov | 82°F | 84°F | 16 | Very low |
| Dec | 81°F | 82°F | 11 | 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 Simpson Bay, Sint Maarten
- 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 fall in December, typically the lowest-seaweed month ahead for Royal Palm Beach Resort. Change them to match the live forecast above.
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Nearest airports
- Princess Juliana Intl (Sint Maarten) (SXM), ~2 km
Nearby resorts
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