MARINE REPORT / 72 HOURS

Key Largo Snorkel Report Today

USA · Updated Sun 01:48 (EDT) · Source: Snapshot

The skinny

Marginal Data updated Sun 01:48 (EDT)

Key Largo looks marginal today. The least-bad daylight window is around Sun 08:00, but waves is limiting the forecast.

Right now (forecast)

Poor · 0.0/10

Sun 04:00 (EDT)

Later today

Fair · 4.0/10

Sun 08:00 (EDT)

Next three days

Fair · 4.0/10

Sun 08:00 (EDT)

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

Score: 4.0/10

Best time: Sun 08:00

Main risk: Waves

Best morning signal: Sun 08:00 (Fair).

Best afternoon signal: Sun 13:00 (Fair). Peak afternoon wind is about 8.4 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

29.8°C

Max air

27.3°C

Sky

Cloudy

89% 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

⚠️ Fair conditions

Main blocker: Waves

Monday

❌ Poor conditions

Main blocker: Waves

Tuesday

⚠️ Fair conditions

Main blocker: Waves

Best available hours

  • Sun 08:00: Fair (0.40) · still limited by waves, wind
  • Sun 13:00: Fair (0.39) · still limited by waves, wind
  • Sun 12:00: Fair (0.39) · still limited by waves, wind

Why this verdict

Main blockers across the next 72 hours:

  • Waves (68 hours)
  • Wind (63 hours)
  • Tide/current (60 hours)

Jellyfish drift risk

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

Low · 34/100

Low peak drift risk around Sun 10:00.

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: Mon 05:00

Mon 05:00, Mon 18:00, Tue 06:00, Tue 19:00

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

Sun 04:00 – Wed 04:00 (EDT)

Previous day Yesterday Next day Live

Snorkel Score (selected 24h)

Best snorkel score is 0.62 around Sun 16:00; 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 0.46m to 0.8m).

Wind is at or below 5.4m/s in 17/24 sampled hours (range 3.2 to 7.25m/s).

Tides range from -0.28m to 0.14m; 2 of 24 hours are in or near peak slack windows.

72-hour historical overview
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Fair ⚠️ Fair
Fair ⚠️ Fair
Fair ⚠️ Fair
Fair ⚠️ Fair
Fair ⚠️ Fair
Fair ⚠️ Fair
Good 🌟 Good
Good 🌟 Good
Good 🌟 Good
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
Poor ❌ Limited
Good 🌟 Good
Good 🌟 Good
Good 🌟 Good
Good 🌟 Good
Good 🌟 Good
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
Poor ❌ Limited
Good 🌟 Good
Good 🌟 Good
Fair ⚠️ Fair
Good 🌟 Good
Good 🌟 Good
Good 🌟 Good
Good 🌟 Good
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
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
Sun 04:00 0.80 · high 6.99 · high 29.70 · good Poor
Sun 05:00 0.80 · high 7.22 · high 29.70 · good Poor
Sun 06:00 0.80 · high 7.25 · high 29.60 · good Poor
Sun 07:00 0.68 · high 6.14 · high 29.70 · good Poor
Sun 08:00 0.66 · high 5.66 · high 29.70 · good Fair
Sun 09:00 0.64 · high 5.16 · good 29.70 · good Fair
Sun 10:00 0.64 · high 5.73 · high 29.80 · good Fair
Sun 11:00 0.62 · high 6.16 · high 29.90 · good Fair
Sun 12:00 0.64 · high 5.05 · good 29.90 · good Fair
Sun 13:00 0.64 · high 5.16 · good 30.00 · good Fair
Sun 14:00 0.62 · high 4.78 · good 30.00 · good Good
Sun 15:00 0.60 · high 4.17 · good 30.10 · good Good
Sun 16:00 0.56 · high 4.35 · good 30.10 · good Good
Sun 17:00 0.54 · high 4.15 · good 30.10 · good Good
Sun 18:00 0.52 · high 3.70 · good 30.10 · good Good
Sun 19:00 0.50 · high 3.75 · good 30.10 · good Poor
Sun 20:00 0.48 · high 4.34 · good 30.10 · good Poor
Sun 21:00 0.48 · high 4.71 · good 30.10 · good Poor
Sun 22:00 0.48 · high 4.75 · good 30.10 · good Poor
Sun 23:00 0.48 · high 4.69 · good 30.10 · good Poor
Mon 00:00 0.48 · high 4.23 · good 30.00 · good Poor
Mon 01:00 0.48 · high 3.61 · good 30.00 · good Poor
Mon 02:00 0.48 · high 3.72 · good 30.00 · good Poor
Mon 03:00 0.46 · high 3.20 · good 30.00 · good Poor
Mon 04:00 0.44 · high 2.91 · good 29.90 · good Poor
Mon 05:00 0.42 · high 2.79 · good 29.90 · good Poor
Mon 06:00 0.42 · high 2.78 · good 29.90 · good Poor
Mon 07:00 0.44 · high 3.05 · good 29.90 · good Poor
Mon 08:00 0.42 · high 3.08 · good 29.90 · good Good
Mon 09:00 0.44 · high 3.44 · good 29.90 · good Good
Mon 10:00 0.46 · high 3.41 · good 30.00 · good Good
Mon 11:00 0.48 · high 3.62 · good 30.00 · good Good
Mon 12:00 0.50 · high 3.76 · good 30.10 · good Good
Mon 13:00 0.48 · high 4.90 · good 30.20 · good Fair
Mon 14:00 0.48 · high 5.66 · high 30.20 · good Fair
Mon 15:00 0.52 · high 5.91 · high 30.30 · good Fair
Mon 16:00 0.56 · high 5.98 · high 30.30 · good Fair
Mon 17:00 0.60 · high 6.14 · high 30.30 · good Fair
Mon 18:00 0.62 · high 6.24 · high 30.30 · good Fair
Mon 19:00 0.62 · high 5.52 · high 30.30 · good Poor
Mon 20:00 0.64 · high 5.19 · good 30.30 · good Poor
Mon 21:00 0.64 · high 5.09 · good 30.30 · good Poor
Mon 22:00 0.64 · high 5.31 · good 30.30 · good Poor
Mon 23:00 0.64 · high 5.32 · good 30.20 · good Poor
Tue 00:00 0.62 · high 5.12 · good 30.20 · good Poor
Tue 01:00 0.62 · high 4.72 · good 30.20 · good Poor
Tue 02:00 0.60 · high 4.80 · good 30.20 · good Poor
Tue 03:00 0.58 · high 4.84 · good 30.10 · good Poor
Tue 04:00 0.56 · high 4.84 · good 30.10 · good Poor
Tue 05:00 0.54 · high 4.97 · good 30.10 · good Poor
Tue 06:00 0.54 · high 4.93 · good 30.00 · good Poor
Tue 07:00 0.48 · high 4.70 · good 29.80 · good Poor
Tue 08:00 0.48 · high 4.61 · good 29.80 · good Good
Tue 09:00 0.48 · high 5.74 · high 29.80 · good Good
Tue 10:00 0.48 · high 6.77 · high 29.80 · good Fair
Tue 11:00 0.48 · high 7.07 · high 29.90 · good Good
Tue 12:00 0.46 · high 7.20 · high 29.90 · good Good
Tue 13:00 0.44 · high 6.03 · high 30.00 · good Good
Tue 14:00 0.42 · high 6.41 · high 30.00 · good Good
Tue 15:00 0.44 · high 7.17 · high 30.00 · good Fair
Tue 16:00 0.46 · high 7.11 · high 30.00 · good Fair
Tue 17:00 0.48 · high 6.89 · high 30.00 · good Fair
Tue 18:00 0.50 · high 6.82 · high 30.00 · good Fair
Tue 19:00 0.50 · high 6.44 · high 29.90 · good Poor
Tue 20:00 0.52 · high 6.00 · high 29.90 · good Poor
Tue 21:00 0.54 · high 5.52 · high 29.90 · good Poor
Tue 22:00 0.54 · high 5.12 · good 29.90 · good Poor
Tue 23:00 0.56 · high 4.95 · good 29.80 · good Poor
Wed 00:00 0.54 · high 4.67 · good 29.80 · good Poor
Wed 01:00 0.54 · high 4.74 · good 29.70 · good Poor
Wed 02:00 0.52 · high 4.52 · good 29.70 · good Poor
Wed 03:00 0.50 · high 4.26 · good 29.60 · good Poor