Grafton Beach Resort beach forecast: weather, water & waves
Mt Irvine, Tobago, TT · Trinidad & Tobago, Trinidad & Tobago · 11.203, -60.785
Updated : very low seaweed, beach grade B-, sea 84°F.
Veabird's call
Tuesday grades A-, mostly dry with 84°F water facing northwest.
February and September grade B+ best, and February is busiest for Carnaval.
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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Questions about Grafton Beach Resort
Does Grafton Beach Resort get sargassum (seaweed)?
Only a little in most years. At Grafton Beach Resort the typical-year risk stays low, even around July, the usual peak (moderate or heavier seaweed on the beach in an estimated 17% of weeks). Landings vary by year, wind and currents.
How warm is the water at Grafton Beach Resort?
About 84°F in November. The sea is warmest in September and October (about 86°F) and coolest in February and March (about 81°F).
When is the best time to visit Grafton Beach Resort?
For warm water and dry weather, aim for January, February, March, April, May and September. September is usually the quietest of those, with about 18 rainy days and a sea near 86°F.
When is hurricane season at Grafton Beach 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 Grafton Beach Resort in 15 of the 55 seasons from 1971 to 2025, and a hurricane within 58 miles in 3. The riskiest stretch is around August 13, when the chance of a storm passing in any one week is about 3%; across all of August it is about 11%. Flexible bookings and travel insurance help in the peak weeks.
What guests say about Grafton Beach Resort
Guests like Helpful staff · Comfortable rooms · Good location
Watch for Cleanliness issues · Need for upgrades · Limited dining options
- Cleanliness
5.0 - Service
8.5 - Location
8.0 - Room Quality
6.5 - Amenities
5.0 - Value for Money
7.0 - Food and Beverage
7.0 - Overall Experience
6.0
Read all 166 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 Grafton Beach Resort
Low sargassum risk year-round at Grafton Beach Resort: even around July, the usual peak, Veabird estimates moderate or heavier seaweed on the beach in about 17% 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: 5% of weeks here on average, against 14% off Martinique, so 38% of that season. The satellite share (2016–2024, the top fifth of all coast-weeks, adjusted for this beach's exposure of 23%) 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 321°; 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.
Trinidad & Tobago month by month
Typical weather, water temperature, seaweed and crowds for every month: the best time to visit Trinidad & Tobago.
- Trinidad & Tobago in January
- Trinidad & Tobago in February
- Trinidad & Tobago in March
- Trinidad & Tobago in April
- Trinidad & Tobago in May
- Trinidad & Tobago in June
- Trinidad & Tobago in July
- Trinidad & Tobago in August
- Trinidad & Tobago in September
- Trinidad & Tobago in October
- Trinidad & Tobago in November
- Trinidad & Tobago in December
Weather, water & seaweed by month at Grafton Beach Resort
Average highs run from about 83°F in January to 87°F in September. The sea is warmest in September and October (about 86°F) and coolest in February and March (about 81°F). February is usually the driest, with about 15 rainy days; June and July are the wettest, with about 24 rainy days.
| Month | Avg high | Sea | Rainy days | Sargassum |
|---|---|---|---|---|
| Jan | 83°F | 82°F | 16 | Very low |
| Feb | 84°F | 81°F | 15 | Very low |
| Mar | 84°F | 81°F | 16 | Very low |
| Apr | 85°F | 82°F | 18 | Very low |
| May | 86°F | 83°F | 17 | Low |
| Jun | 85°F | 83°F | 24 | Low |
| Jul | 85°F | 84°F | 24 | Low |
| Aug | 86°F | 85°F | 23 | Low |
| Sep | 87°F | 86°F | 18 | Very low |
| Oct | 86°F | 86°F | 21 | Very low |
| Nov | 84°F | 84°F | 23 | Very low |
| Dec | 84°F | 83°F | 20 | 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
- THA crews in Tobago; windward Tobago bays heavily affected in peak years
- Resort crews
- Hotels clear frontage
- Typical clearing time
- Days on public beaches
Safety notes
US State Dept: Trinidad & Tobago, Level 3 Reconsider Travel (crime, terrorism, verify)
- Violent crime in parts of Port of Spain; Tobago lower but not negligible
- State of emergency declared in 2024-25 (verify current status)
- Use trusted transport, avoid walking at night
Check official advisories and local flags before swimming. Decomposing sargassum releases hydrogen sulfide; avoid heavy piles.
Things to do near Mt Irvine, Tobago, TT
- Carnival (Feb/Mar)
- Buccoo Reef & Nylon Pool
- Main Ridge Forest Reserve
- Pigeon Point
- Asa Wright Nature Centre
- Leatherback turtle nesting (Mar-Aug)
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
- A.N.R. Robinson Intl (Tobago) (TAB), ~8 km
- Piarco Intl (Trinidad) (POS), ~91 km
Nearby resorts
- Rumagin Villa Mt Irvine, Tobago, TT · 1 km
- Turtle Beach Mt Irvine, Tobago, TT · 2 km
- Mt Irvine Bay Resort Mt Irvine, Tobago, TT · 2 km
- Tobago Island Suites & Casino Hotel Mt Irvine, Tobago, TT · 3 km
- Magdalena Grand Beach & Golf Resort Lowlands, Tobago, TT · 6 km
- Rovanel’s Resort Lowlands, Tobago, TT · 7 km
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