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Royalton Blue Waters Montego Bay beach & sargassum forecast

Falmouth, JM · Jamaica, Jamaica · 18.496, -77.682

Updated : moderate seaweed, beach grade C-, sea 85°F.

Also listed as Royalton Blue Waters Montego Bay, An Autograph Collection All-Inclusive Resort.

7.4 Good · 467 reviews · All 64 photos · View on ExpediaHotel photos

Veabird's call

FriC-SatCSunC-MonC-TueB

Tuesday is best here at B, but Sea Grapes Villa, 18 mi away, grades A- on Tuesday.

January and February grade best, seaweed lowest in February, and March is busiest.

Grades from Veabird's beach forecast; wording by AI (Muse Spark), checked against the forecast. Updated Nov 13, 01:00 UTC.

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Tell me when Royalton Blue Waters Montego Bay 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 Royalton Blue Waters Montego Bay

Does Falmouth get sargassum (seaweed)?

Yes, in season. At Royalton Blue Waters Montego Bay the typical-year risk is moderate or higher from April to September and peaks in July (high). How much lands varies a lot by year, wind and currents.

What are the worst and best months for seaweed at Royalton Blue Waters Montego Bay?

Worst: June and July, when heavy seaweed is most likely. Best: October through March, when the risk is usually low.

How warm is the water at Royalton Blue Waters Montego Bay?

About 85°F in November. The sea is warmest in September (about 88°F) and coolest in February (about 81°F).

When is the best time to visit Royalton Blue Waters Montego Bay?

For warm water, low seaweed and dry weather, aim for November through March. November is usually the quietest of those, with about 17 rainy days and a sea near 85°F; seaweed risk is very low.

Does Royalton Blue Waters Montego Bay have a sargassum barrier or beach cleanup?

Veabird doesn't track barriers hotel by hotel; this is what the Jamaica area does. Offshore barriers in Jamaica: none. Resort crews: All-inclusive crews rake private frontage daily. Typical clearing time: Same morning at resorts; public beaches slower.

When is hurricane season at Royalton Blue Waters Montego Bay, 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 Royalton Blue Waters Montego Bay in 13 of the 55 seasons from 1971 to 2025, and a hurricane within 58 miles in 3. The riskiest stretch is around August 20, when the chance of a storm passing in any one week is about 2%; across all of September it is about 8%. Flexible bookings and travel insurance help in the peak weeks.

What guests say about Royalton Blue Waters Montego Bay, An Autograph Collection All-Inclusive Resort

7.4
Good467 reviews from verified stays

Guests like Friendly staff (except front desk) · Swimming pool amenities

Watch for Poor cleanliness · Lack of communication from hotel · Subpar food quality · Unsatisfactory room conditions

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 Royalton Blue Waters Montego Bay

Sargassum risk at Royalton Blue Waters Montego Bay typically peaks around July (high: moderate or heavier seaweed on the beach in an estimated 54% of weeks). Months most likely to see heavy seaweed: June and July. Lowest-risk months: January, February, March, 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 seen on Quintana Roo's beaches (a Puerto Morelos beach camera, 2015–2020, and the Mexican Navy's beach alerts, 2022–2026), the nearest coast with a multi-year beach record (this one has none), and scales it by how often NOAA AOML satellites see notable seaweed within about 20 km of this stretch of coast: 44% of weeks here on average, against 54% off Quintana Roo, so 81% of that season. The satellite share (2016–2024, the top fifth of all coast-weeks, adjusted for this beach's exposure of 35%) 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 0°; 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.

Jamaica month by month

Typical weather, water temperature, seaweed and crowds for every month: the best time to visit Jamaica.

Weather, water & seaweed by month at Royalton Blue Waters Montego Bay

Average highs run from about 83°F in January, February and December to 90°F in July, August and September. The sea is warmest in September (about 88°F) and coolest in February (about 81°F). January is usually the driest, with about 11 rainy days; October is the wettest, with about 26 rainy days. Seaweed risk is usually lowest in October and highest in July.

MonthAvg highSeaRainy daysSargassum
Jan83°F82°F11Very low
Feb83°F81°F12Low
Mar85°F83°F16Low
Apr86°F83°F19Moderate
May88°F85°F22Moderate
Jun89°F85°F19High
Jul90°F86°F19High
Aug90°F87°F19Moderate
Sep90°F88°F21Moderate
Oct87°F87°F26Very low
Nov85°F85°F17Very low
Dec83°F83°F14Very 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
None
Public cleanup
NEPA / parish councils; limited public beach programs
Resort crews
All-inclusive crews rake private frontage daily
Typical clearing time
Same morning at resorts; public beaches slower

Safety notes

US State Dept: Jamaica, Level 3 (reconsider travel) due to crime — verify

Check official advisories and local flags before swimming. Decomposing sargassum releases hydrogen sulfide; avoid heavy piles.

Things to do near Falmouth, JM

Fly in for the best beach days

Suggested dates fall in October, typically the lowest-seaweed month ahead for Royalton Blue Waters Montego Bay. Change them to match the live forecast above.

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Coordinates approximate; forecasts are estimates, not safety guidance.