Fonthill Beach sargassum & beach forecast
Treasure Beach, JM · Jamaica, Jamaica · 18.047, -77.947
Updated : very high seaweed, beach grade D+, sea 85°F.
Veabird's call
Tuesday is the best of a middling run at C+ with 86°F water, though seaweed stays high.
January at B+ and February at A- grade best, with seaweed usually lowest in February.
Grades from Veabird's beach forecast; wording by AI (Muse Spark), checked against the forecast. Updated Nov 13, 01:00 UTC.
Tell me when Fonthill Beach 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.
We email you a link to confirm first. Privacy
Plan your trip
Where to stay nearby
Partner links: Veabird may earn a commission at no cost to you. Partners never affect forecasts or scores.
Questions about Fonthill Beach
Does Treasure Beach get sargassum (seaweed)?
Yes, in season. At Fonthill Beach the typical-year risk is moderate or higher from May to August 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 Fonthill Beach?
Worst: June and July, though even then the typical risk is moderate. Best: September through April, when the risk is usually low.
How warm is the water at Fonthill Beach?
About 86°F in November. The sea is warmest in August, September and October (about 87°F) and coolest in February and March (about 82°F).
When is the best time to visit Fonthill Beach?
For warm water, low seaweed and dry weather, aim for December through February. January is usually the quietest of those, with about 10 rainy days and a sea near 83°F; seaweed risk is very low.
Does Fonthill Beach 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 Fonthill Beach, 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 Fonthill Beach in 13 of the 55 seasons from 1971 to 2025, and a hurricane within 58 miles in 7. The riskiest stretch is around August 20, when the chance of a storm passing in any one week is about 2%; across all of August it is about 8%. Flexible bookings and travel insurance help in the peak weeks.
Sargassum season at Fonthill Beach
Sargassum risk at Fonthill Beach typically peaks around July (moderate: moderate or heavier seaweed on the beach in an estimated 39% of weeks). Lowest-risk months: January, February, March, April, 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 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: 32% of weeks here on average, against 54% off Quintana Roo, so 59% of that season. The satellite share (2016–2024, the top fifth of all coast-weeks, adjusted for this beach's exposure of 47%) 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 230°; 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 Fonthill Beach
Average highs run from about 86°F in February to 93°F in July and August. The sea is warmest in August, September and October (about 87°F) and coolest in February and March (about 82°F). January is usually the driest, with about 10 rainy days; October is the wettest, with about 21 rainy days. Seaweed risk is usually lowest in October and highest in July.
| Month | Avg high | Sea | Rainy days | Sargassum |
|---|---|---|---|---|
| Jan | 87°F | 83°F | 10 | Very low |
| Feb | 86°F | 82°F | 11 | Low |
| Mar | 87°F | 82°F | 15 | Low |
| Apr | 88°F | 84°F | 18 | Low |
| May | 91°F | 85°F | 16 | Moderate |
| Jun | 92°F | 85°F | 11 | Moderate |
| Jul | 93°F | 85°F | 14 | Moderate |
| Aug | 93°F | 87°F | 18 | Moderate |
| Sep | 92°F | 87°F | 15 | Low |
| Oct | 89°F | 87°F | 21 | Very low |
| Nov | 87°F | 86°F | 16 | Very low |
| Dec | 87°F | 84°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
- 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
- Violent crime is high in parts of Kingston and Montego Bay; stay in resort zones and use licensed transport (JUTA/JCAL)
- Some neighborhoods are off-limits to US government staff
- Emergency medical care outside Kingston/Mo Bay is limited
Check official advisories and local flags before swimming. Decomposing sargassum releases hydrogen sulfide; avoid heavy piles.
Things to do near Treasure Beach, JM
- Dunn's River Falls
- Seven Mile Beach & Rick's Café (Negril)
- Blue Lagoon (Port Antonio)
- Martha Brae rafting
- Blue Mountains coffee
- YS Falls & Pelican Bar
Fly in for the best beach days
Suggested dates fall in October, typically the lowest-seaweed month ahead for Fonthill Beach. Change them to match the live forecast above.
Opens a flight search in a new tab. Partner link: Veabird may earn a commission.
Nearest airports
- Sangster Intl (Montego Bay) (MBJ), ~51 km
- Norman Manley Intl (Kingston) (KIN), ~123 km
Nearby resorts
- Tan Tan Beach Treasure Beach, JM · 23 km
- Golden Sands Beach Resort Treasure Beach, JM · 26 km
- Brytan Villa Treasure Beach, JM · 27 km
- Jakes Hotel Treasure Beach, JM · 27 km
- Beach Resort Treasure Beach, JM · 44 km
- Secrets St. James Montego Bay Montego Bay, JM · 46 km
Embed this forecast
Hotels and travel sites can show live conditions for Fonthill Beach for free. Get the widget · Data & API