MARINE REPORT / 72 HOURS

Key Largo Snorkel Report Today

USA · Updated Sun 11:18 (EDT) · Source: Snapshot

The skinny

Marginal Data updated Sun 11:18 (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 · 2.1/10

Sun 14:00 (EDT)

Later today

Poor · 2.9/10

Sun 18:00 (EDT)

Next three days

Fair · 4.0/10

Tue 18:00 (EDT)

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

Score: 2.9/10

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 10.1 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

29.7°C

Max air

26.7°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

⚠️ Fair conditions

Main blocker: Waves

Tuesday

⚠️ Fair conditions

Main blocker: Waves

Best available hours

  • Tue 18:00: Fair (0.40) · still limited by waves, wind
  • Tue 16:00: Fair (0.37) · still limited by waves, wind
  • Tue 15:00: Fair (0.37) · still limited by waves, wind

Why this verdict

Main blockers across the next 72 hours:

  • Waves (68 hours)
  • Wind (68 hours)
  • Tide/current (68 hours)

Jellyfish drift risk

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

Low · 34/100

Low peak drift risk around Sun 18:00.

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 06:00

Sun 17:00, Sun 21:00, Tue 06:00, Tue 19:00, Wed 07:00

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

Wed 14:00 – Sat 14:00 (EDT)

Previous day Yesterday Next day Live

Snorkel Score (selected 24h)

Best snorkel score is 0.57 around Wed 17:00; 6 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.

4/24 sampled hours stay at or below 0.36m (range 0.34m to 0.78m).

Wind is at or below 5.4m/s in 0/24 sampled hours (range 6.17 to 9.07m/s).

Tides range from -0.4m to 0.15m; 2 of 24 hours are in or near peak slack windows.

72-hour historical overview
Fair ⚠️ Fair
Good 🌟 Good
Fair ⚠️ Fair
Good 🌟 Good
Fair ⚠️ Fair
Fair ⚠️ Fair
Poor ❌ Limited
Poor ❌ Limited
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Fair ⚠️ Fair
Fair ⚠️ Fair
Fair ⚠️ Fair
Poor ❌ Limited
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Fair ⚠️ Fair
Fair ⚠️ Fair
Fair ⚠️ Fair
Poor ❌ Limited
Poor ❌ Limited
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Fair ⚠️ Fair
Fair ⚠️ Fair
Fair ⚠️ Fair
Fair ⚠️ Fair
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 14:00 0.34 · good 7.51 · high 29.90 · good Fair
Wed 15:00 0.34 · good 8.65 · high 29.90 · good Good
Wed 16:00 0.36 · good 9.03 · high 29.90 · good Fair
Wed 17:00 0.36 · good 9.07 · high 29.90 · good Good
Wed 18:00 0.40 · high 8.40 · high 29.90 · good Fair
Wed 19:00 0.46 · high 8.57 · high 29.90 · good Fair
Wed 20:00 0.50 · high 7.03 · high 29.90 · good Poor
Wed 21:00 0.54 · high 8.03 · high 29.90 · good Poor
Wed 22:00 0.60 · high 8.35 · high 29.90 · good Poor
Wed 23:00 0.64 · high 8.18 · high 29.90 · good Poor
Thu 00:00 0.64 · high 8.13 · high 29.80 · good Poor
Thu 01:00 0.64 · high 8.05 · high 29.80 · good Poor
Thu 02:00 0.64 · high 7.77 · high 29.80 · good Poor
Thu 03:00 0.68 · high 8.14 · high 29.70 · good Poor
Thu 04:00 0.72 · high 7.99 · high 29.70 · good Poor
Thu 05:00 0.76 · high 7.26 · high 29.70 · good Poor
Thu 06:00 0.78 · high 6.89 · high 29.60 · good Poor
Thu 07:00 0.78 · high 7.15 · high 29.40 · good Poor
Thu 08:00 0.78 · high 7.70 · high 29.40 · good Poor
Thu 09:00 0.76 · high 7.83 · high 29.40 · good Poor
Thu 10:00 0.76 · high 7.78 · high 29.40 · good Poor
Thu 11:00 0.74 · high 7.88 · high 29.40 · good Poor
Thu 12:00 0.74 · high 7.92 · high 29.40 · good Poor
Thu 13:00 0.76 · high 6.17 · high 29.40 · good Poor
Thu 14:00 0.76 · high 6.08 · high 29.40 · good Poor
Thu 15:00 0.78 · high 5.87 · high 29.40 · good Poor
Thu 16:00 0.78 · high 6.17 · high 29.50 · good Poor
Thu 17:00 0.80 · high 5.82 · high 29.50 · good Fair
Thu 18:00 0.80 · high 5.03 · good 29.50 · good Fair
Thu 19:00 0.78 · high 4.81 · good 29.50 · good Fair
Thu 20:00 0.78 · high 4.71 · good 29.50 · good Poor
Thu 21:00 0.76 · high 4.81 · good 29.50 · good Poor
Thu 22:00 0.74 · high 4.85 · good 29.50 · good Poor
Thu 23:00 0.72 · high 5.50 · high 29.40 · good Poor
Fri 00:00 0.74 · high 6.33 · high 29.40 · good Poor
Fri 01:00 0.74 · high 6.80 · high 29.40 · good Poor
Fri 02:00 0.76 · high 6.95 · high 29.30 · good Poor
Fri 03:00 0.76 · high 6.66 · high 29.30 · good Poor
Fri 04:00 0.76 · high 6.58 · high 29.30 · good Poor
Fri 05:00 0.76 · high 6.53 · high 29.20 · good Poor
Fri 06:00 0.78 · high 6.36 · high 29.20 · good Poor
Fri 07:00 0.76 · high 6.46 · high 29.10 · good Poor
Fri 08:00 0.76 · high 6.77 · high 29.10 · good Poor
Fri 09:00 0.76 · high 6.96 · high 29.10 · good Poor
Fri 10:00 0.78 · high 7.24 · high 29.20 · good Poor
Fri 11:00 0.78 · high 7.15 · high 29.20 · good Poor
Fri 12:00 0.76 · high 7.09 · high 29.30 · good Poor
Fri 13:00 0.76 · high 6.72 · high 29.30 · good Poor
Fri 14:00 0.78 · high 6.53 · high 29.40 · good Poor
Fri 15:00 0.76 · high 6.59 · high 29.40 · good Poor
Fri 16:00 0.74 · high 6.07 · high 29.40 · good Poor
Fri 17:00 0.72 · high 5.24 · good 29.50 · good Fair
Fri 18:00 0.70 · high 4.73 · good 29.50 · good Fair
Fri 19:00 0.68 · high 4.30 · good 29.50 · good Fair
Fri 20:00 0.66 · high 3.83 · good 29.50 · good Poor
Fri 21:00 0.68 · high 4.03 · good 29.50 · good Poor
Fri 22:00 0.70 · high 4.54 · good 29.40 · good Poor
Fri 23:00 0.72 · high 4.70 · good 29.40 · good Poor
Sat 00:00 0.70 · high 5.01 · good 29.40 · good Poor
Sat 01:00 0.66 · high 4.74 · good 29.40 · good Poor
Sat 02:00 0.64 · high 4.55 · good 29.30 · good Poor
Sat 03:00 0.64 · high 4.73 · good 29.30 · good Poor
Sat 04:00 0.64 · high 4.90 · good 29.30 · good Poor
Sat 05:00 0.64 · high 4.78 · good 29.30 · good Poor
Sat 06:00 0.66 · high 4.56 · good 29.20 · good Poor
Sat 07:00 0.66 · high 4.40 · good 29.00 · good Poor
Sat 08:00 0.68 · high 4.43 · good 29.00 · good Poor
Sat 09:00 0.66 · high 5.15 · good 29.10 · good Poor
Sat 10:00 0.64 · high 5.57 · high 29.10 · good Fair
Sat 11:00 0.62 · high 5.85 · high 29.20 · good Fair
Sat 12:00 0.62 · high 5.63 · high 29.20 · good Fair
Sat 13:00 0.70 · high 5.61 · high 29.30 · good Fair