Royal Key: sargassum, weather & water today
Sainte-Anne, Guadeloupe · Guadeloupe, Martinique & Dominica, Guadeloupe · 16.335, -61.365
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Sargassum season at Royal Key
Sargassum risk at Royal Key typically peaks around June (moderate in a typical year). Lowest-risk months: January, February, March, September, October, November, December. Actual landings vary a lot by year, wind and currents; check the live conditions above.
Typical-year risk from the published seasonality of the Great Atlantic Sargassum Belt × this beach's exposure (34%). Beach faces 262°; onshore winds from that direction push seaweed ashore.
| Month | Typical risk |
|---|---|
| January | Very low |
| February | Low |
| March | Low |
| April | Moderate |
| May | Moderate |
| June | Moderate |
| July | Moderate |
| August | Moderate |
| September | Low |
| October | Low |
| November | Low |
| December | Very low |
Cleanup & barriers
- Offshore barriers
- Floating barrages at several Martinique/Guadeloupe bays; national sargassum plan
- Public cleanup
- Communes use mechanical collection; windward Atlantic coasts overwhelmed in peak years, with H2S health alerts
- Resort crews
- Hotels rake frontage; leeward sites rarely affected
- Typical clearing time
- Variable: hours to weeks; check prefecture H2S bulletins
Safety notes
France: exercise increased caution (Level 2 via France, verify); Dominica Level 1 (verify)
- Hydrogen-sulfide from rotting sargassum can close Atlantic beaches - heed prefecture alerts
- Occasional unrest/strikes in Guadeloupe/Martinique
- Dominica: landslide risk on mountain roads in rain
Check official advisories and local flags before swimming. Decomposing sargassum releases hydrogen sulfide; avoid heavy piles.
Things to do near Sainte-Anne, Guadeloupe
- Les Saintes day trip
- La Soufrière volcano, Guadeloupe
- Mont Pelée & Saint-Pierre
- Rhum agricole distilleries
- Boiling Lake & Trafalgar Falls, Dominica
- Cousteau Reserve, Pigeon Island
Fly in for the best beach days
Suggested dates fall in December, typically the lowest-seaweed month ahead for Royal Key. Change them to match the live forecast above.
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Nearest airports
- Pointe-à-Pitre Pôle Caraïbes (PTP), ~19 km
Nearby resorts
- Domaine du Vieux Moulin Sainte-Anne, Guadeloupe · 11 km
- Pierre et Vacances Saint-François, Guadeloupe · 11 km
- Villa Blue Lagoon St François Saint-François, Guadeloupe · 12 km
- Sainte-Anne Beach Resorts (Club Med La Caravelle) Sainte-Anne, Guadeloupe · 13 km
- Club Med La Caravelle Sainte-Anne, Guadeloupe · 13 km
- La Toubana Sainte-Anne, Guadeloupe · 14 km
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