MARINE REPORT / 72 HOURS

Trunk Bay Snorkel Report Today

US Virgin Islands · Updated Sat 22:08 (AST) · Source: Snapshot

The skinny

Go in the best window Data updated Sat 22:08 (AST)

Trunk Bay has a usable snorkeling window around Sun 07:00. The main thing to watch is waves.

Right now (forecast)

Poor · 0.0/10

Sun 00:00 (AST)

Later today

Good · 6.0/10

Sun 16:00 (AST)

Next three days

Good · 6.1/10

Mon 17:00 (AST)

Model estimates using Open-Meteo; not observations or safety guarantees. Check official advisories and conditions at the beach.

Score: 6.0/10

Best time: Sun 07:00

Main risk: Waves

Best morning signal: Sun 11:00 (Good).

Best afternoon signal: Sun 16:00 (Good). Peak afternoon wind is about 3.4 m/s.

Email me when it is good

Also see the best places to snorkel in the Caribbean, ranked on our stored historical scores.

Sunrise

06:13

Sunset

17:54

Water

29.6°C

Max air

29.0°C

Sky

Clear

7% cloud

Good model window in the next 72 hours

Next good model window: Sun 07:00–08:00 (32% of the next 72h meets the model threshold)

3-day planner Best available Show data

3-day planner

Sunday

✅ Good conditions

Main blocker: Waves

Monday

✅ Good conditions

Main blocker: Waves

Tuesday

✅ Good conditions

Main blocker: Waves

Best available hours

The next good model window starts at Sun 07:00 and lasts until 08:00.

Why this verdict

Main blockers across the next 72 hours:

  • Waves (69 hours)
  • Tide/current (42 hours)
  • Darkness (36 hours)

Jellyfish drift risk

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

Low · 29/100

Low peak drift risk around Sun 08:00.

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

Next early morning high tide: Tue 03:00

Sun 15:00, Mon 16:00, Tue 03:00

Nearby alternatives in US Virgin Islands

Buck Island

65 km away

✅ Good

Advanced forecast data

Viewing historical data

Wed 00:00 – Sat 00:00 (AST)

Previous day Yesterday Next day Live

Snorkel Score (selected 24h)

Best snorkel score is 0.46 around Wed 18:00; 9 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 0.56m to 0.8m).

Wind is at or below 5.4m/s in 10/24 sampled hours (range 3.38 to 9.44m/s).

Tides range from 0.22m to 0.47m; 1 of 24 hours are in or near peak slack windows.

72-hour historical overview
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Fair ⚠️ Fair
Poor ❌ Limited
Fair ⚠️ Fair
Fair ⚠️ Fair
Fair ⚠️ Fair
Fair ⚠️ Fair
Fair ⚠️ Fair
Fair ⚠️ Fair
Fair ⚠️ Fair
Fair ⚠️ Fair
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Fair ⚠️ Fair
Fair ⚠️ Fair
Fair ⚠️ Fair
Fair ⚠️ Fair
Fair ⚠️ Fair
Fair ⚠️ Fair
Fair ⚠️ Fair
Fair ⚠️ Fair
Fair ⚠️ Fair
Fair ⚠️ Fair
Fair ⚠️ Fair
Fair ⚠️ Fair
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Fair ⚠️ Fair
Fair ⚠️ Fair
Fair ⚠️ Fair
Fair ⚠️ Fair
Fair ⚠️ Fair
Fair ⚠️ Fair
Fair ⚠️ Fair
Fair ⚠️ Fair
Fair ⚠️ Fair
Fair ⚠️ Fair
Fair ⚠️ Fair
Fair ⚠️ Fair
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
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 is better in daylight, so night hours score lower.
Detailed hourly data table
Time Wave (m) Wind (m/s) Sea temp (°C) Status
Wed 00:00 0.56 · high 5.87 · high 29.40 · good Poor
Wed 01:00 0.56 · high 5.35 · good 29.40 · good Poor
Wed 02:00 0.58 · high 4.44 · good 29.40 · good Poor
Wed 03:00 0.60 · high 5.25 · good 29.40 · good Poor
Wed 04:00 0.62 · high 5.81 · high 29.30 · good Poor
Wed 05:00 0.64 · high 4.91 · good 29.30 · good Poor
Wed 06:00 0.64 · high 4.19 · good 29.30 · good Poor
Wed 07:00 0.74 · high 6.53 · high 29.30 · good Poor
Wed 08:00 0.78 · high 6.56 · high 29.30 · good Poor
Wed 09:00 0.76 · high 6.06 · high 29.30 · good Fair
Wed 10:00 0.74 · high 9.44 · high 29.40 · good Poor
Wed 11:00 0.72 · high 3.38 · good 29.40 · good Fair
Wed 12:00 0.78 · high 5.68 · high 29.50 · good Fair
Wed 13:00 0.78 · high 5.41 · high 29.50 · good Fair
Wed 14:00 0.80 · high 4.92 · good 29.50 · good Fair
Wed 15:00 0.80 · high 5.09 · good 29.50 · good Fair
Wed 16:00 0.78 · high 5.56 · high 29.50 · good Fair
Wed 17:00 0.78 · high 6.85 · high 29.50 · good Fair
Wed 18:00 0.78 · high 6.03 · high 29.50 · good Fair
Wed 19:00 0.78 · high 5.13 · good 29.40 · good Poor
Wed 20:00 0.78 · high 4.81 · good 29.40 · good Poor
Wed 21:00 0.78 · high 5.88 · high 29.40 · good Poor
Wed 22:00 0.78 · high 6.14 · high 29.40 · good Poor
Wed 23:00 0.78 · high 6.00 · high 29.40 · good Poor
Thu 00:00 0.76 · high 5.91 · high 29.40 · good Poor
Thu 01:00 0.72 · high 5.73 · high 29.30 · good Poor
Thu 02:00 0.70 · high 3.93 · good 29.30 · good Poor
Thu 03:00 0.68 · high 3.11 · good 29.30 · good Poor
Thu 04:00 0.66 · high 2.91 · good 29.30 · good Poor
Thu 05:00 0.64 · high 4.29 · good 29.30 · good Poor
Thu 06:00 0.64 · high 4.83 · good 29.30 · good Poor
Thu 07:00 0.58 · high 5.38 · good 29.30 · good Fair
Thu 08:00 0.58 · high 5.64 · high 29.40 · good Fair
Thu 09:00 0.58 · high 5.28 · good 29.50 · good Fair
Thu 10:00 0.60 · high 5.27 · good 29.50 · good Fair
Thu 11:00 0.60 · high 5.44 · high 29.60 · good Fair
Thu 12:00 0.66 · high 5.95 · high 29.60 · good Fair
Thu 13:00 0.66 · high 5.49 · high 29.70 · good Fair
Thu 14:00 0.66 · high 5.15 · good 29.70 · good Fair
Thu 15:00 0.66 · high 4.85 · good 29.70 · good Fair
Thu 16:00 0.64 · high 4.66 · good 29.70 · good Fair
Thu 17:00 0.64 · high 4.99 · good 29.70 · good Fair
Thu 18:00 0.62 · high 5.15 · good 29.70 · good Fair
Thu 19:00 0.62 · high 5.29 · good 29.70 · good Poor
Thu 20:00 0.60 · high 5.71 · high 29.70 · good Poor
Thu 21:00 0.60 · high 5.98 · high 29.70 · good Poor
Thu 22:00 0.62 · high 5.63 · high 29.60 · good Poor
Thu 23:00 0.62 · high 5.87 · high 29.60 · good Poor
Fri 00:00 0.62 · high 6.08 · high 29.60 · good Poor
Fri 01:00 0.62 · high 5.87 · high 29.50 · good Poor
Fri 02:00 0.62 · high 4.90 · good 29.50 · good Poor
Fri 03:00 0.60 · high 4.38 · good 29.50 · good Poor
Fri 04:00 0.60 · high 4.32 · good 29.50 · good Poor
Fri 05:00 0.58 · high 4.39 · good 29.50 · good Poor
Fri 06:00 0.60 · high 4.50 · good 29.50 · good Poor
Fri 07:00 0.58 · high 5.28 · good 29.50 · good Fair
Fri 08:00 0.58 · high 5.70 · high 29.50 · good Fair
Fri 09:00 0.60 · high 5.60 · high 29.60 · good Fair
Fri 10:00 0.62 · high 5.32 · good 29.70 · good Fair
Fri 11:00 0.62 · high 5.21 · good 29.80 · good Fair
Fri 12:00 0.62 · high 4.99 · good 29.90 · good Fair
Fri 13:00 0.62 · high 4.64 · good 29.90 · good Fair
Fri 14:00 0.62 · high 4.48 · good 30.00 · good Fair
Fri 15:00 0.60 · high 4.27 · good 30.00 · good Fair
Fri 16:00 0.60 · high 4.05 · good 30.00 · good Fair
Fri 17:00 0.58 · high 4.44 · good 29.90 · good Fair
Fri 18:00 0.58 · high 5.51 · high 29.90 · good Fair
Fri 19:00 0.60 · high 5.01 · good 29.90 · good Poor
Fri 20:00 0.60 · high 5.30 · good 29.80 · good Poor
Fri 21:00 0.60 · high 5.42 · high 29.80 · good Poor
Fri 22:00 0.60 · high 5.20 · good 29.80 · good Poor
Fri 23:00 0.60 · high 4.92 · good 29.70 · good Poor