SnorkelForecast.com

Grand Cayman Snorkel Report Today

Cayman Islands · Updated Tue 04:14 (EST) · Source: Snapshot

The skinny

Marginal Report Tue 18:02

Grand Cayman looks marginal today. The least-bad daylight window is around Wed 06:00, but waves is limiting the forecast.

Score: 5.1/10

Best time: Wed 06:00

Main risk: Waves

No useful morning window is showing yet.

No useful afternoon window is showing yet.

Email me when it is good

Sunrise

05:58

Sunset

19:04

Water

30.2°C

Max air

28.9°C

Sky

Clear

2% 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 11:00 — Fair (0.51) · still limited by waves, tide/current
  • Wed 12:00 — Fair (0.51) · still limited by waves, tide/current
  • Wed 13:00 — Fair (0.50) · still limited by waves, tide/current

Why this verdict

Main blockers across the next 72 hours:

  • Waves (52 hours)
  • Tide/current (36 hours)
  • Darkness (26 hours)

Jellyfish drift risk

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

Low · 32/100

Low peak drift risk around Wed 13:00.

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: Wed 09:00

Wed 09:00

Nearby alternatives in Cayman Islands

Little Cayman

129 km away

❌ Poor

Advanced forecast data

Viewing historical data

Sat 23:00 – Tue 23:00 (EST)

Previous day Yesterday Next day Live

Snorkel Score (selected 24h)

Best snorkel score is 0.42 around Sun 07:00; 11 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 1.56m to 1.68m).

Wind is at or below 5.4m/s in 8/24 sampled hours (range 3.99 to 7.46m/s).

Tides range from 0.37m to 0.75m; 0 of 24 hours are in or near peak slack windows.

72-hour historical overview
fair ⚠️ Fair
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
poor ❌ Limited
fair ⚠️ Fair
fair ⚠️ Fair
poor ❌ Limited
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
fair ⚠️ Fair
fair ⚠️ Fair
fair ⚠️ Fair
fair ⚠️ Fair
poor ❌ Limited
poor ❌ Limited
poor ❌ Limited
poor ❌ Limited
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
fair ⚠️ Fair
fair ⚠️ Fair
fair ⚠️ Fair
poor ❌ Limited
poor ❌ Limited
poor ❌ Limited
poor ❌ Limited
poor ❌ Limited
poor ❌ Limited
fair ⚠️ Fair
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 and safety gate (outside daylight scores lower).
Detailed hourly data table
Time Wave (m) Wind (m/s) Sea temp (°C) Status
Sat 23:00 1.68 · high 6.23 · high 29.90 · good fair
Sun 00:00 1.68 · high 6.23 · high 29.90 · good poor
Sun 01:00 1.68 · high 6.04 · high 29.90 · good poor
Sun 02:00 1.68 · high 5.06 · good 29.80 · good poor
Sun 03:00 1.68 · high 4.47 · good 29.80 · good poor
Sun 04:00 1.66 · high 4.46 · good 29.80 · good poor
Sun 05:00 1.64 · high 4.89 · good 29.70 · good poor
Sun 06:00 1.62 · high 4.46 · good 29.70 · good poor
Sun 07:00 1.60 · high 4.40 · good 29.70 · good poor
Sun 08:00 1.60 · high 3.99 · good 29.80 · good poor
Sun 09:00 1.56 · high 4.11 · good 29.80 · good poor
Sun 10:00 1.56 · high 5.67 · high 29.80 · good poor
Sun 11:00 1.56 · high 7.27 · high 29.80 · good fair
Sun 12:00 1.56 · high 7.34 · high 29.80 · good fair
Sun 13:00 1.58 · high 7.34 · high 29.80 · good fair
Sun 14:00 1.62 · high 7.46 · high 29.90 · good poor
Sun 15:00 1.64 · high 6.91 · high 29.90 · good fair
Sun 16:00 1.64 · high 6.02 · high 30.00 · good fair
Sun 17:00 1.62 · high 5.82 · high 30.00 · good poor
Sun 18:00 1.62 · high 5.75 · high 30.10 · good fair
Sun 19:00 1.60 · high 6.05 · high 30.10 · good fair
Sun 20:00 1.60 · high 6.12 · high 30.10 · good fair
Sun 21:00 1.58 · high 6.08 · high 30.10 · good fair
Sun 22:00 1.56 · high 6.04 · high 30.10 · good fair
Sun 23:00 1.54 · high 6.00 · high 30.10 · good fair
Mon 00:00 1.52 · high 5.91 · high 30.10 · good poor
Mon 01:00 1.50 · high 5.83 · high 30.10 · good poor
Mon 02:00 1.48 · high 5.05 · good 30.10 · good poor
Mon 03:00 1.46 · high 4.36 · good 30.10 · good poor
Mon 04:00 1.44 · high 3.86 · good 30.00 · good poor
Mon 05:00 1.40 · high 4.02 · good 30.00 · good poor
Mon 06:00 1.38 · high 4.05 · good 30.00 · good poor
Mon 07:00 1.38 · high 4.59 · good 30.00 · good poor
Mon 08:00 1.36 · high 6.12 · high 29.90 · good poor
Mon 09:00 1.36 · high 6.86 · high 29.90 · good poor
Mon 10:00 1.36 · high 5.29 · good 29.90 · good poor
Mon 11:00 1.38 · high 5.05 · good 29.90 · good fair
Mon 12:00 1.38 · high 5.47 · high 29.90 · good fair
Mon 13:00 1.40 · high 5.97 · high 29.90 · good fair
Mon 14:00 1.44 · high 6.11 · high 29.90 · good fair
Mon 15:00 1.46 · high 6.32 · high 30.00 · good poor
Mon 16:00 1.50 · high 6.22 · high 30.00 · good poor
Mon 17:00 1.52 · high 6.01 · high 30.00 · good poor
Mon 18:00 1.56 · high 5.87 · high 30.10 · good poor
Mon 19:00 1.54 · high 5.92 · high 30.10 · good fair
Mon 20:00 1.54 · high 5.81 · high 30.10 · good fair
Mon 21:00 1.52 · high 5.58 · high 30.10 · good fair
Mon 22:00 1.50 · high 5.49 · high 30.10 · good fair
Mon 23:00 1.48 · high 5.14 · good 30.10 · good fair
Tue 00:00 1.46 · high 5.58 · high 30.10 · good poor
Tue 01:00 1.46 · high 4.83 · good 30.10 · good poor
Tue 02:00 1.46 · high 4.95 · good 30.00 · good poor
Tue 03:00 1.46 · high 4.55 · good 30.00 · good poor
Tue 04:00 1.42 · high 4.20 · good 30.00 · good poor
Tue 05:00 1.38 · high 3.80 · good 29.90 · good poor
Tue 06:00 1.34 · high 4.25 · good 29.90 · good poor
Tue 07:00 1.32 · high 4.68 · good 29.90 · good poor
Tue 08:00 1.32 · high 4.95 · good 29.90 · good poor
Tue 09:00 1.30 · high 5.50 · high 29.90 · good poor
Tue 10:00 1.32 · high 5.95 · high 29.80 · good poor
Tue 11:00 1.32 · high 6.68 · high 29.80 · good fair
Tue 12:00 1.34 · high 7.43 · high 29.80 · good fair
Tue 13:00 1.36 · high 6.94 · high 29.80 · good fair
Tue 14:00 1.40 · high 5.81 · high 29.80 · good poor
Tue 15:00 1.42 · high 5.81 · high 29.90 · good poor
Tue 16:00 1.42 · high 4.74 · good 29.90 · good poor
Tue 17:00 1.42 · high 5.96 · high 29.90 · good poor
Tue 18:00 1.42 · high 5.86 · high 29.90 · good poor
Tue 19:00 1.40 · high 5.97 · high 29.90 · good poor
Tue 20:00 1.40 · high 5.46 · high 29.90 · good fair
Tue 21:00 1.38 · high 5.36 · good 29.90 · good poor
Tue 22:00 1.40 · high 4.93 · good 29.90 · good poor