MARINE REPORT / 72 HOURS

Key Largo Snorkel Report Today

USA · Updated Sun 17:33 (EDT) · Source: Snapshot

The skinny

Marginal Data updated Sun 17:33 (EDT)

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

Right now (forecast)

Poor · 2.6/10

Sun 17:00 (EDT)

Later today

Poor · 2.6/10

Sun 18:00 (EDT)

Next three days

Fair · 4.5/10

Wed 08:00 (EDT)

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

Score: 2.6/10

Best time: Sun 18:00

Main risk: Waves

No useful morning window is showing yet.

Best afternoon signal: Sun 18:00 (Poor). Peak afternoon wind is about 6.9 m/s.

Email me when it is good

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

Sunrise

07:21

Sunset

18:51

Water

29.6°C

Max air

26.0°C

Sky

Cloudy

100% cloud

No good model 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

Sunday

❌ Poor conditions

Main blocker: Waves

Monday

❌ Poor conditions

Main blocker: Waves

Tuesday

⚠️ Fair conditions

Main blocker: Waves

Best available hours

  • Wed 08:00: Fair (0.45) · still limited by waves, tide/current
  • Wed 11:00: Fair (0.43) · still limited by waves, tide/current
  • Wed 09:00: Fair (0.43) · still limited by waves, tide/current

Why this verdict

Main blockers across the next 72 hours:

  • Waves (71 hours)
  • Tide/current (71 hours)
  • Wind (56 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

Next early morning high tide: Tue 06:00

Sun 21:00, Tue 06:00, Tue 19:00, Wed 07:00, Wed 11:00

Nearby alternatives in USA

Bahia Honda

97 km away

❌ Poor

Looe Key

114 km away

❌ Poor

Dry Tortugas

250 km away

❌ Poor

Crystal River

475 km away

✅ Good

Advanced forecast data

Viewing historical data

Sat 17:00 – Tue 17:00 (EDT)

Previous day Yesterday Next day Live

Snorkel Score (selected 24h)

Best snorkel score is 0.79 around Sat 19:00; 12 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.

24/24 sampled hours stay at or below 0.36m (range 0.16m to 0.32m).

Wind is at or below 5.4m/s in 24/24 sampled hours (range 1.52 to 4.68m/s).

Tides range from -0.15m to 0.27m; 2 of 24 hours are in or near peak slack windows.

72-hour historical overview
Good 🌟 Good
Excellent ✅ Excellent
Excellent ✅ Excellent
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Excellent ✅ Excellent
Good 🌟 Good
Excellent ✅ Excellent
Excellent ✅ Excellent
Excellent ✅ Excellent
Good 🌟 Good
Good 🌟 Good
Good 🌟 Good
Good 🌟 Good
Good 🌟 Good
Good 🌟 Good
Excellent ✅ Excellent
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Excellent ✅ Excellent
Excellent ✅ Excellent
Excellent ✅ Excellent
Excellent ✅ Excellent
Excellent ✅ Excellent
Excellent ✅ Excellent
Good 🌟 Good
Good 🌟 Good
Excellent ✅ Excellent
Excellent ✅ Excellent
Good 🌟 Good
Good 🌟 Good
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Excellent ✅ Excellent
Excellent ✅ Excellent
Excellent ✅ Excellent
Excellent ✅ Excellent
Good 🌟 Good
Good 🌟 Good
Excellent ✅ Excellent
Good 🌟 Good
Excellent ✅ Excellent
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
Sat 17:00 0.20 · good 3.55 · good 30.60 · out of range Good
Sat 18:00 0.20 · good 2.77 · good 30.60 · out of range Excellent
Sat 19:00 0.20 · good 2.00 · good 30.60 · out of range Excellent
Sat 20:00 0.20 · good 1.52 · good 30.60 · out of range Poor
Sat 21:00 0.20 · good 2.33 · good 30.60 · out of range Poor
Sat 22:00 0.18 · good 3.11 · good 30.50 · out of range Poor
Sat 23:00 0.18 · good 3.19 · good 30.50 · out of range Poor
Sun 00:00 0.18 · good 3.25 · good 30.40 · good Poor
Sun 01:00 0.18 · good 2.83 · good 30.40 · good Poor
Sun 02:00 0.18 · good 2.76 · good 30.30 · good Poor
Sun 03:00 0.18 · good 2.86 · good 30.30 · good Poor
Sun 04:00 0.16 · good 2.97 · good 30.20 · good Poor
Sun 05:00 0.16 · good 3.05 · good 30.10 · good Poor
Sun 06:00 0.16 · good 3.11 · good 30.10 · good Poor
Sun 07:00 0.26 · good 3.16 · good 29.80 · good Poor
Sun 08:00 0.30 · good 3.08 · good 29.80 · good Excellent
Sun 09:00 0.32 · good 3.62 · good 29.80 · good Good
Sun 10:00 0.30 · good 3.11 · good 29.80 · good Excellent
Sun 11:00 0.30 · good 2.73 · good 29.90 · good Excellent
Sun 12:00 0.28 · good 2.94 · good 29.90 · good Excellent
Sun 13:00 0.24 · good 3.78 · good 30.00 · good Good
Sun 14:00 0.22 · good 4.68 · good 30.00 · good Good
Sun 15:00 0.20 · good 3.61 · good 30.00 · good Good
Sun 16:00 0.20 · good 3.18 · good 30.10 · good Good
Sun 17:00 0.18 · good 2.77 · good 30.10 · good Good
Sun 18:00 0.18 · good 2.26 · good 30.10 · good Good
Sun 19:00 0.16 · good 1.90 · good 30.10 · good Excellent
Sun 20:00 0.16 · good 1.82 · good 30.10 · good Poor
Sun 21:00 0.18 · good 1.66 · good 30.10 · good Poor
Sun 22:00 0.20 · good 1.36 · good 30.00 · good Poor
Sun 23:00 0.22 · good 0.94 · good 30.00 · good Poor
Mon 00:00 0.20 · good 0.51 · good 30.00 · good Poor
Mon 01:00 0.20 · good 0.92 · good 30.00 · good Poor
Mon 02:00 0.18 · good 0.85 · good 29.90 · good Poor
Mon 03:00 0.16 · good 0.86 · good 29.90 · good Poor
Mon 04:00 0.16 · good 1.17 · good 29.90 · good Poor
Mon 05:00 0.14 · good 1.50 · good 29.80 · good Poor
Mon 06:00 0.14 · good 1.62 · good 29.80 · good Poor
Mon 07:00 0.12 · good 1.39 · good 29.50 · good Poor
Mon 08:00 0.12 · good 1.14 · good 29.50 · good Excellent
Mon 09:00 0.12 · good 0.71 · good 29.50 · good Excellent
Mon 10:00 0.10 · good 0.50 · good 29.60 · good Excellent
Mon 11:00 0.10 · good 1.28 · good 29.60 · good Excellent
Mon 12:00 0.10 · good 2.31 · good 29.70 · good Excellent
Mon 13:00 0.10 · good 3.91 · good 29.70 · good Excellent
Mon 14:00 0.10 · good 5.00 · good 29.80 · good Good
Mon 15:00 0.10 · good 5.02 · good 29.80 · good Good
Mon 16:00 0.10 · good 4.66 · good 29.80 · good Excellent
Mon 17:00 0.10 · good 4.70 · good 29.80 · good Excellent
Mon 18:00 0.10 · good 4.30 · good 29.80 · good Good
Mon 19:00 0.12 · good 3.41 · good 29.80 · good Good
Mon 20:00 0.12 · good 2.76 · good 29.80 · good Poor
Mon 21:00 0.16 · good 2.86 · good 29.80 · good Poor
Mon 22:00 0.18 · good 2.28 · good 29.80 · good Poor
Mon 23:00 0.22 · good 1.80 · good 29.80 · good Poor
Tue 00:00 0.22 · good 1.97 · good 29.70 · good Poor
Tue 01:00 0.20 · good 0.64 · good 29.70 · good Poor
Tue 02:00 0.20 · good 0.92 · good 29.70 · good Poor
Tue 03:00 0.20 · good 1.32 · good 29.70 · good Poor
Tue 04:00 0.20 · good 1.61 · good 29.60 · good Poor
Tue 05:00 0.20 · good 1.61 · good 29.60 · good Poor
Tue 06:00 0.18 · good 1.52 · good 29.60 · good Poor
Tue 07:00 0.18 · good 1.90 · good 29.60 · good Poor
Tue 08:00 0.06 · good 2.20 · good 29.70 · good Excellent
Tue 09:00 0.06 · good 2.38 · good 29.70 · good Excellent
Tue 10:00 0.14 · good 1.00 · good 29.70 · good Excellent
Tue 11:00 0.16 · good 1.12 · good 29.70 · good Excellent
Tue 12:00 0.14 · good 2.09 · good 29.80 · good Good
Tue 13:00 0.12 · good 1.80 · good 29.80 · good Good
Tue 14:00 0.10 · good 1.82 · good 29.80 · good Excellent
Tue 15:00 0.12 · good 3.20 · good 29.80 · good Good
Tue 16:00 0.12 · good 2.15 · good 29.90 · good Excellent