SnorkelForecast.com

Trunk Bay Snorkel Report Today

US Virgin Islands · Updated Fri 03:24 (AST) · Source: Snapshot

The skinny

Marginal Report Fri 01:52

Trunk Bay looks marginal today. The least-bad daylight window is around Sun 18:00, but waves is limiting the forecast.

Score: 3.7/10

Best time: Sun 18:00

Main risk: Waves

Best morning signal: Fri 07:00 (Fair).

Best afternoon signal: Fri 12:00 (Fair). Peak afternoon wind is about 8.0 m/s.

Email me when it is good

Sunrise

05:54

Sunset

18:56

Water

28.7°C

Max air

28.4°C

Sky

Clear

12% cloud

No safe window in the next 72 hours

Use the best-available section for the least-bad times.

3-day planner Best available Show data

3-day planner

Friday

⚠️ fair conditions

Main blocker: Waves

Saturday

⚠️ fair conditions

Main blocker: Waves

Sunday

⚠️ fair conditions

Main blocker: Waves

Best available hours

  • Sun 22:00 — Fair (0.38) · still limited by waves, wind
  • Sat 20:00 — Fair (0.37) · still limited by waves, wind
  • Sun 21:00 — Fair (0.37) · still limited by waves, wind

Why this verdict

Main blockers across the next 72 hours:

  • Waves (69 hours)
  • Wind (69 hours)
  • Tide/current (69 hours)

Jellyfish drift risk

Drift estimate from wind, swell, current and warm water.

Low · 34/100

Low drift risk now.

warm water supports seasonal jellyfish activity; surface drift/current is noticeable; local shoreline exposure is not mapped yet.

Sightings override the model: if you see small purple jellyfish with long trailing tentacles, treat them as sting-capable and give them space.

Upcoming high tides

Fri 22:00, Sat 23:00

Nearby alternatives in US Virgin Islands

Buck Island

65 km away

❌ Poor

Advanced forecast data

Viewing historical data

Wed 05:00 – Sat 05:00 (AST)

Previous day Yesterday Next day Live

Snorkel Score (selected 24h)

Best snorkel score is 0.0 around Wed 01:00; 0 of 24 hours are good, fair, or excellent.

Score trend, higher is better. Excellent ≥ 0.72, good 0.55–0.72, fair 0.35–0.55.

Conditions (24h trends)

Tap a chart to load just that series.

0/24 sampled hours stay at or below 0.36m (range 1.3m to 1.48m).

Wind is at or below 5.4m/s in 0/24 sampled hours (range 27.0 to 35.3m/s).

Tides range from 0.07m to 0.4m; 1 of 24 hours are in or near peak slack windows.

72-hour historical overview
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Scoring methodology (for technical users)

We score each hour from 0 to 1 using daylight and these weighted components:

  • Wave height (35%): best below 0.36m, then decreases as it rises.
  • Wind speed (25%): best below 5.4m/s, lower is better.
  • Sea surface temperature (15%): best within 20.6°C to 30.4°C.
  • Tide and currents (15%): best around slack/high-tide windows.
  • Daylight (10%): visibility and safety gate (outside daylight scores lower).
Detailed hourly data table
Time Wave (m) Wind (m/s) Sea temp (°C) Status
Wed 05:00 1.42 · high 34.10 · high 28.30 · good poor
Wed 06:00 1.42 · high 30.80 · high 28.30 · good poor
Wed 07:00 1.42 · high 30.20 · high 28.30 · good poor
Wed 08:00 1.40 · high 32.10 · high 28.30 · good poor
Wed 09:00 1.40 · high 32.80 · high 28.30 · good poor
Wed 10:00 1.42 · high 31.50 · high 28.30 · good poor
Wed 11:00 1.42 · high 31.30 · high 28.30 · good poor
Wed 12:00 1.44 · high 31.30 · high 28.30 · good poor
Wed 13:00 1.44 · high 32.30 · high 28.30 · good poor
Wed 14:00 1.42 · high 31.20 · high 28.30 · good poor
Wed 15:00 1.40 · high 30.40 · high 28.30 · good poor
Wed 16:00 1.36 · high 27.20 · high 28.30 · good poor
Wed 17:00 1.34 · high 27.00 · high 28.40 · good poor
Wed 18:00 1.30 · high 28.40 · high 28.40 · good poor
Wed 19:00 1.30 · high 31.70 · high 28.40 · good poor
Wed 20:00 1.32 · high 32.70 · high 28.40 · good poor
Wed 21:00 1.32 · high 32.60 · high 28.40 · good poor
Wed 22:00 1.36 · high 34.60 · high 28.40 · good poor
Wed 23:00 1.42 · high 34.60 · high 28.40 · good poor
Thu 00:00 1.46 · high 33.90 · high 28.40 · good poor
Thu 01:00 1.46 · high 34.40 · high 28.40 · good poor
Thu 02:00 1.48 · high 33.50 · high 28.40 · good poor
Thu 03:00 1.48 · high 35.20 · high 28.40 · good poor
Thu 04:00 1.48 · high 35.30 · high 28.30 · good poor
Thu 05:00 1.50 · high 35.30 · high 28.30 · good poor
Thu 06:00 1.50 · high 35.60 · high 28.30 · good poor
Thu 07:00 1.52 · high 34.60 · high 28.30 · good poor
Thu 08:00 1.52 · high 33.30 · high 28.30 · good poor
Thu 09:00 1.54 · high 34.10 · high 28.30 · good poor
Thu 10:00 1.54 · high 35.10 · high 28.30 · good poor
Thu 11:00 1.52 · high 32.80 · high 28.30 · good poor
Thu 12:00 1.52 · high 32.20 · high 28.30 · good poor
Thu 13:00 1.50 · high 32.20 · high 28.30 · good poor
Thu 14:00 1.48 · high 31.60 · high 28.30 · good poor
Thu 15:00 1.46 · high 30.70 · high 28.30 · good poor
Thu 16:00 1.44 · high 30.10 · high 28.40 · good poor
Thu 17:00 1.42 · high 30.90 · high 28.40 · good poor
Thu 18:00 1.40 · high 31.50 · high 28.40 · good poor
Thu 19:00 1.40 · high 30.60 · high 28.40 · good poor
Thu 20:00 1.38 · high 29.70 · high 28.40 · good poor
Thu 21:00 1.38 · high 29.60 · high 28.40 · good poor
Thu 22:00 1.38 · high 31.10 · high 28.40 · good poor
Thu 23:00 1.36 · high 31.10 · high 28.40 · good poor
Fri 00:00 1.36 · high 31.10 · high 28.40 · good poor
Fri 01:00 1.36 · high 33.50 · high 28.40 · good poor
Fri 02:00 1.36 · high 33.30 · high 28.40 · good poor
Fri 03:00 1.36 · high 32.40 · high 28.40 · good poor
Fri 04:00 1.38 · high 32.40 · high 28.40 · good poor
Fri 05:00 1.38 · high 31.70 · high 28.40 · good poor
Fri 06:00 1.40 · high 31.80 · high 28.40 · good poor
Fri 07:00 1.40 · high 34.20 · high 28.40 · good poor
Fri 08:00 1.38 · high 32.40 · high 28.30 · good poor
Fri 09:00 1.38 · high 29.00 · high 28.30 · good poor
Fri 10:00 1.38 · high 30.40 · high 28.30 · good poor
Fri 11:00 1.38 · high 28.90 · high 28.30 · good poor
Fri 12:00 1.38 · high 29.80 · high 28.30 · good poor
Fri 13:00 1.36 · high 30.10 · high 28.30 · good poor
Fri 14:00 1.32 · high 30.00 · high 28.40 · good poor
Fri 15:00 1.30 · high 28.80 · high 28.40 · good poor
Fri 16:00 1.26 · high 27.90 · high 28.50 · good poor
Fri 17:00 1.20 · high 26.00 · high 28.50 · good poor
Fri 18:00 1.16 · high 25.30 · high 28.50 · good poor
Fri 19:00 1.12 · high 24.20 · high 28.50 · good poor
Fri 20:00 1.10 · high 22.90 · high 28.50 · good poor
Fri 21:00 1.06 · high 22.40 · high 28.50 · good poor
Fri 22:00 1.04 · high 22.80 · high 28.50 · good poor
Fri 23:00 1.04 · high 23.20 · high 28.50 · good poor
Sat 00:00 1.02 · high 24.00 · high 28.50 · good poor
Sat 01:00 1.02 · high 24.30 · high 28.50 · good poor
Sat 02:00 1.02 · high 24.30 · high 28.50 · good poor
Sat 03:00 1.02 · high 24.90 · high 28.50 · good poor
Sat 04:00 1.02 · high 24.60 · high 28.40 · good poor