SnorkelForecast.com

Trunk Bay Snorkel Report Today

US Virgin Islands · Updated Tue 04:14 (AST) · Source: Snapshot

The skinny

Marginal Report Tue 18:56

Trunk Bay looks marginal today. The least-bad daylight window is around Wed 12:00, but waves is limiting the forecast.

Score: 4.2/10

Best time: Wed 12:00

Main risk: Waves

No useful morning window is showing yet.

No useful afternoon window is showing yet.

Email me when it is good

Sunrise

05:53

Sunset

18:57

Water

28.8°C

Max air

27.6°C

Sky

Clear

17% 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

Tuesday

❌ poor conditions

Main blocker: Waves

Wednesday

⚠️ fair conditions

Main blocker: Waves

Thursday

⚠️ fair conditions

Main blocker: Waves

Best available hours

  • Wed 16:00 — Fair (0.42) · still limited by waves, tide/current
  • Thu 22:00 — Fair (0.39) · still limited by waves, wind
  • Thu 21:00 — Fair (0.38) · still limited by waves, wind

Why this verdict

Main blockers across the next 72 hours:

  • Waves (53 hours)
  • Tide/current (53 hours)
  • Wind (41 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.

Nearby alternatives in US Virgin Islands

Buck Island

65 km away

❌ Poor

Advanced forecast data

Viewing historical data

Sat 22:00 – Tue 22:00 (AST)

Previous day Yesterday Next day Live

Snorkel Score (selected 24h)

Best snorkel score is 0.32 around Sun 08:00; 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 1.28m to 1.48m).

Wind is at or below 5.4m/s in 0/24 sampled hours (range 8.11 to 9.87m/s).

Tides range from 0.01m to 0.5m; 2 of 24 hours are in or near peak slack windows.

72-hour historical overview
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fair ⚠️ Fair
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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
Sat 22:00 1.38 · high 9.36 · high 28.60 · good poor
Sat 23:00 1.40 · high 8.92 · high 28.60 · good poor
Sun 00:00 1.42 · high 8.95 · high 28.60 · good poor
Sun 01:00 1.44 · high 9.20 · high 28.60 · good poor
Sun 02:00 1.46 · high 9.33 · high 28.50 · good poor
Sun 03:00 1.48 · high 9.64 · high 28.50 · good poor
Sun 04:00 1.48 · high 9.81 · high 28.50 · good poor
Sun 05:00 1.46 · high 9.87 · high 28.50 · good poor
Sun 06:00 1.46 · high 9.47 · high 28.50 · good poor
Sun 07:00 1.42 · high 8.85 · high 28.50 · good poor
Sun 08:00 1.48 · high 9.46 · high 28.30 · good poor
Sun 09:00 1.44 · high 9.75 · high 28.30 · good poor
Sun 10:00 1.42 · high 8.75 · high 28.30 · good poor
Sun 11:00 1.40 · high 8.84 · high 28.30 · good poor
Sun 12:00 1.38 · high 8.29 · high 28.30 · good poor
Sun 13:00 1.36 · high 8.65 · high 28.30 · good poor
Sun 14:00 1.36 · high 8.80 · high 28.40 · good poor
Sun 15:00 1.34 · high 9.15 · high 28.40 · good poor
Sun 16:00 1.32 · high 8.51 · high 28.50 · good poor
Sun 17:00 1.30 · high 8.18 · high 28.50 · good poor
Sun 18:00 1.28 · high 8.11 · high 28.50 · good poor
Sun 19:00 1.28 · high 8.32 · high 28.50 · good poor
Sun 20:00 1.28 · high 8.16 · high 28.50 · good poor
Sun 21:00 1.28 · high 8.46 · high 28.50 · good poor
Sun 22:00 1.28 · high 8.38 · high 28.50 · good poor
Sun 23:00 1.30 · high 8.78 · high 28.50 · good poor
Mon 00:00 1.30 · high 9.38 · high 28.50 · good poor
Mon 01:00 1.32 · high 9.28 · high 28.50 · good poor
Mon 02:00 1.36 · high 9.32 · high 28.50 · good poor
Mon 03:00 1.38 · high 9.80 · high 28.50 · good poor
Mon 04:00 1.38 · high 9.41 · high 28.40 · good poor
Mon 05:00 1.38 · high 8.72 · high 28.40 · good poor
Mon 06:00 1.38 · high 8.42 · high 28.40 · good poor
Mon 07:00 1.36 · high 8.38 · high 28.40 · good poor
Mon 08:00 1.36 · high 8.39 · high 28.40 · good poor
Mon 09:00 1.34 · high 8.41 · high 28.40 · good poor
Mon 10:00 1.34 · high 8.95 · high 28.40 · good poor
Mon 11:00 1.34 · high 8.66 · high 28.40 · good poor
Mon 12:00 1.34 · high 8.51 · high 28.40 · good poor
Mon 13:00 1.32 · high 8.07 · high 28.40 · good poor
Mon 14:00 1.32 · high 7.91 · high 28.40 · good poor
Mon 15:00 1.30 · high 7.36 · high 28.50 · good poor
Mon 16:00 1.26 · high 6.81 · high 28.50 · good poor
Mon 17:00 1.24 · high 6.70 · high 28.60 · good poor
Mon 18:00 1.20 · high 6.85 · high 28.60 · good poor
Mon 19:00 1.18 · high 6.45 · high 28.60 · good poor
Mon 20:00 1.16 · high 6.70 · high 28.60 · good poor
Mon 21:00 1.14 · high 6.62 · high 28.60 · good poor
Mon 22:00 1.14 · high 7.19 · high 28.60 · good poor
Mon 23:00 1.12 · high 7.84 · high 28.60 · good poor
Tue 00:00 1.12 · high 8.41 · high 28.60 · good poor
Tue 01:00 1.14 · high 8.45 · high 28.60 · good poor
Tue 02:00 1.16 · high 9.28 · high 28.50 · good poor
Tue 03:00 1.18 · high 8.59 · high 28.50 · good poor
Tue 04:00 1.18 · high 7.61 · high 28.50 · good poor
Tue 05:00 1.16 · high 7.57 · high 28.50 · good poor
Tue 06:00 1.16 · high 8.09 · high 28.50 · good poor
Tue 07:00 1.14 · high 7.79 · high 28.50 · good poor
Tue 08:00 1.14 · high 7.20 · high 28.50 · good poor
Tue 09:00 1.12 · high 7.01 · high 28.50 · good poor
Tue 10:00 1.10 · high 6.31 · high 28.50 · good fair
Tue 11:00 1.06 · high 6.18 · high 28.50 · good fair
Tue 12:00 1.04 · high 6.80 · high 28.50 · good fair
Tue 13:00 1.02 · high 6.20 · high 28.50 · good fair
Tue 14:00 1.00 · high 6.06 · high 28.60 · good fair
Tue 15:00 0.98 · high 6.35 · high 28.60 · good fair
Tue 16:00 0.98 · high 6.32 · high 28.70 · good poor
Tue 17:00 0.98 · high 6.35 · high 28.70 · good poor
Tue 18:00 0.98 · high 7.41 · high 28.70 · good poor
Tue 19:00 0.98 · high 7.86 · high 28.70 · good poor
Tue 20:00 0.98 · high 7.51 · high 28.70 · good poor
Tue 21:00 0.98 · high 7.63 · high 28.70 · good poor