MARINE REPORT / 72 HOURS

Key Largo Snorkel Report Today

USA · Updated Sun 23:48 (EDT) · Source: Snapshot

The skinny

Marginal Data updated Sun 23:48 (EDT)

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

Right now (forecast)

Poor · 0.0/10

Mon 02:00 (EDT)

Later today

Fair · 3.8/10

Mon 18:00 (EDT)

Next three days

Fair · 4.5/10

Wed 13:00 (EDT)

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

Score: 3.8/10

Best time: Mon 18:00

Main risk: Waves

Best morning signal: Mon 11:00 (Fair).

Best afternoon signal: Mon 18:00 (Fair). Peak afternoon wind is about 8.3 m/s.

Email me when it is good

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

Sunrise

07:22

Sunset

18:50

Water

29.2°C

Max air

28.2°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

Monday

⚠️ Fair conditions

Main blocker: Waves

Tuesday

⚠️ Fair conditions

Main blocker: Waves

Wednesday

⚠️ Fair conditions

Main blocker: Waves

Best available hours

  • Wed 13:00: Fair (0.45) · still limited by waves, wind
  • Wed 18:00: Fair (0.44) · still limited by waves, tide/current
  • Wed 16:00: Fair (0.44) · still limited by waves, wind

Why this verdict

Main blockers across the next 72 hours:

  • Waves (68 hours)
  • Tide/current (68 hours)
  • Wind (46 hours)

Jellyfish drift risk

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

Low · 34/100

Low peak drift risk around Mon 06:00.

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

Tue 06:00, Tue 19:00, Wed 07:00, Wed 11:00, Wed 20:00

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 02:00 – Tue 02:00 (EDT)

Previous day Yesterday Next day Live

Snorkel Score (selected 24h)

Best snorkel score is 0.81 around Sat 09:00; 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 0.12m to 0.18m).

Wind is at or below 5.4m/s in 24/24 sampled hours (range 1.71 to 4.47m/s).

Tides range from -0.31m to 0.09m; 2 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
Excellent ✅ Excellent
Excellent ✅ Excellent
Excellent ✅ Excellent
Excellent ✅ Excellent
Excellent ✅ Excellent
Good 🌟 Good
Excellent ✅ Excellent
Good 🌟 Good
Good 🌟 Good
Excellent ✅ Excellent
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
Excellent ✅ Excellent
Excellent ✅ Excellent
Good 🌟 Good
Good 🌟 Good
Good 🌟 Good
Good 🌟 Good
Good 🌟 Good
Good 🌟 Good
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
Good 🌟 Good
Good 🌟 Good
Good 🌟 Good
Good 🌟 Good
Fair ⚠️ Fair
Fair ⚠️ Fair
Fair ⚠️ Fair
Fair ⚠️ Fair
Fair ⚠️ Fair
Fair ⚠️ Fair
Fair ⚠️ Fair
Good 🌟 Good
Poor ❌ Limited
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
Sat 02:00 0.18 · good 3.64 · good 30.70 · out of range Poor
Sat 03:00 0.18 · good 3.11 · good 30.70 · out of range Poor
Sat 04:00 0.16 · good 2.16 · good 30.60 · out of range Poor
Sat 05:00 0.16 · good 1.87 · good 30.60 · out of range Poor
Sat 06:00 0.16 · good 2.10 · good 30.60 · out of range Poor
Sat 07:00 0.14 · good 1.71 · good 30.60 · out of range Poor
Sat 08:00 0.14 · good 1.97 · good 30.50 · out of range Excellent
Sat 09:00 0.14 · good 1.93 · good 30.50 · out of range Excellent
Sat 10:00 0.14 · good 2.31 · good 30.50 · out of range Excellent
Sat 11:00 0.14 · good 2.58 · good 30.60 · out of range Excellent
Sat 12:00 0.14 · good 3.11 · good 30.60 · out of range Excellent
Sat 13:00 0.12 · good 3.07 · good 30.70 · out of range Good
Sat 14:00 0.14 · good 4.47 · good 30.70 · out of range Excellent
Sat 15:00 0.14 · good 4.29 · good 30.70 · out of range Good
Sat 16:00 0.14 · good 4.22 · good 30.80 · out of range Good
Sat 17:00 0.14 · good 3.72 · good 30.80 · out of range Excellent
Sat 18:00 0.14 · good 3.04 · good 30.80 · out of range Excellent
Sat 19:00 0.12 · good 2.66 · good 30.80 · out of range Excellent
Sat 20:00 0.12 · good 2.66 · good 30.80 · out of range Poor
Sat 21:00 0.12 · good 2.44 · good 30.80 · out of range Poor
Sat 22:00 0.12 · good 2.40 · good 30.70 · out of range Poor
Sat 23:00 0.12 · good 2.40 · good 30.70 · out of range Poor
Sun 00:00 0.12 · good 2.61 · good 30.70 · out of range Poor
Sun 01:00 0.14 · good 1.80 · good 30.60 · out of range Poor
Sun 02:00 0.14 · good 1.71 · good 30.60 · out of range Poor
Sun 03:00 0.14 · good 1.79 · good 30.50 · out of range Poor
Sun 04:00 0.14 · good 1.92 · good 30.50 · out of range Poor
Sun 05:00 0.14 · good 2.31 · good 30.50 · out of range Poor
Sun 06:00 0.14 · good 2.30 · good 30.40 · good Poor
Sun 07:00 0.12 · good 0.57 · good 30.70 · out of range Poor
Sun 08:00 0.12 · good 0.50 · good 30.70 · out of range Excellent
Sun 09:00 0.12 · good 0.85 · good 30.70 · out of range Excellent
Sun 10:00 0.12 · good 0.42 · good 30.70 · out of range Excellent
Sun 11:00 0.18 · good 2.28 · good 30.70 · out of range Good
Sun 12:00 0.18 · good 2.62 · good 30.70 · out of range Good
Sun 13:00 0.16 · good 2.98 · good 30.80 · out of range Good
Sun 14:00 0.16 · good 3.45 · good 30.80 · out of range Good
Sun 15:00 0.16 · good 3.83 · good 30.80 · out of range Good
Sun 16:00 0.16 · good 3.73 · good 30.80 · out of range Good
Sun 17:00 0.16 · good 3.47 · good 30.80 · out of range Good
Sun 18:00 0.16 · good 3.05 · good 30.80 · out of range Excellent
Sun 19:00 0.18 · good 2.69 · good 30.80 · out of range Excellent
Sun 20:00 0.18 · good 3.41 · good 30.80 · out of range Poor
Sun 21:00 0.20 · good 3.45 · good 30.80 · out of range Poor
Sun 22:00 0.20 · good 2.05 · good 30.80 · out of range Poor
Sun 23:00 0.22 · good 2.77 · good 30.70 · out of range Poor
Mon 00:00 0.26 · good 1.64 · good 30.70 · out of range Poor
Mon 01:00 0.28 · good 2.42 · good 30.70 · out of range Poor
Mon 02:00 0.32 · good 2.22 · good 30.60 · out of range Poor
Mon 03:00 0.34 · good 3.00 · good 30.60 · out of range Poor
Mon 04:00 0.34 · good 3.32 · good 30.50 · out of range Poor
Mon 05:00 0.36 · good 2.94 · good 30.50 · out of range Poor
Mon 06:00 0.34 · good 2.33 · good 30.50 · out of range Poor
Mon 07:00 0.32 · good 2.11 · good 30.30 · good Poor
Mon 08:00 0.30 · good 1.98 · good 30.30 · good Good
Mon 09:00 0.30 · good 1.49 · good 30.30 · good Good
Mon 10:00 0.28 · good 1.66 · good 30.30 · good Good
Mon 11:00 0.28 · good 1.70 · good 30.40 · good Good
Mon 12:00 0.40 · high 3.85 · good 30.40 · good Fair
Mon 13:00 0.42 · high 4.17 · good 30.50 · out of range Fair
Mon 14:00 0.44 · high 4.61 · good 30.50 · out of range Fair
Mon 15:00 0.44 · high 5.28 · good 30.50 · out of range Fair
Mon 16:00 0.46 · high 5.92 · high 30.60 · out of range Fair
Mon 17:00 0.46 · high 5.46 · high 30.60 · out of range Fair
Mon 18:00 0.44 · high 3.97 · good 30.60 · out of range Fair
Mon 19:00 0.42 · high 3.99 · good 30.60 · out of range Good
Mon 20:00 0.40 · high 3.73 · good 30.60 · out of range Poor
Mon 21:00 0.40 · high 2.81 · good 30.60 · out of range Poor
Mon 22:00 0.42 · high 3.00 · good 30.50 · out of range Poor
Mon 23:00 0.42 · high 1.94 · good 30.50 · out of range Poor
Tue 00:00 0.42 · high 2.10 · good 30.40 · good Poor
Tue 01:00 0.42 · high 2.01 · good 30.40 · good Poor