Can you snorkel in Key Largo today?

Yes. The next good snorkeling window in Key Largo starts Sun 22:00 and lasts until 23:00. Around 13% of the next 72 hours are suitable.

What is the best time of day to snorkel in Key Largo?

Snorkel during daylight, ideally in the morning before the wind picks up, and around high slack tide when water is clearest and currents are weakest. SnorkelForecast scores every daylight hour in Key Largo so you can pick the calmest window.

What is the best tide for snorkeling?

High slack tide — within about an hour of the high-tide peak when currents are weakest — is the safest, clearest window. Strong low tides, strong tidal flow near channels or headlands, and large tidal-range days reduce score.

Key Largo Snorkel Report Today

USA · Updated Sat 05:02 (EDT) · Source: Snapshot · Showing fallback/stale data

The skinny

Go in the best window Report Sun 09:53

Key Largo has a usable snorkeling window around Sun 18:00. The main thing to watch is sea temperature.

Score: 6.4/10

Best time: Sun 18:00

Main risk: Sea Temperature

Best morning signal: Sun 10:00 (Fair).

Best afternoon signal: Sun 19:00 (Good). Peak afternoon wind is about 6.2 m/s.

Email me when it is good

Sunrise

06:43

Sunset

20:12

Water

31.1°C

Max air

31.2°C

Sky

Clear

3% cloud

Good window is available today

Next safe window: Sun 22:00–23:00 (13% of next 72h are suitable)

3-day planner Best available Show data

3-day planner

Sunday

✅ good conditions

Main blocker: Sea temperature

Monday

✅ good conditions

Main blocker: Sea temperature

Tuesday

❌ poor conditions

Main blocker: Waves

Best available hours

Next safe window starts at Sun 22:00 until 23:00.

Why this verdict

Main blockers across the next 72 hours:

Sea temperature (39 hours)
Waves (28 hours)
Tide/current (27 hours)

Jellyfish drift risk

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

Low · 34/100

Low peak drift risk around Sun 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.

Nearby alternatives in USA

Bahia Honda

97 km away

✅ Good

Looe Key

114 km away

✅ Good

Dry Tortugas

250 km away

✅ Good

Crystal River

475 km away

✅ Good

Advanced forecast data

Viewing historical data

Thu 13:00 – Sun 13:00 (EDT)

Previous day Yesterday Next day Live

Snorkel Score (selected 24h)

Best snorkel score is 0.68 around Fri 08:00; 13 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 0.26m to 0.3m).

Wind is at or below 5.4m/s in 24/24 sampled hours (range 0.14 to 3.73m/s).

Tides range from -0.51m to 0.03m; 1 of 24 hours are in or near peak slack windows.

72-hour historical overview

Thu 13:00 good 🌟 Good

Thu 14:00 good 🌟 Good

Thu 15:00 good 🌟 Good

Thu 16:00 good 🌟 Good

Thu 17:00 good 🌟 Good

Thu 18:00 good 🌟 Good

Thu 19:00 good 🌟 Good

Thu 20:00 good 🌟 Good

Thu 21:00 good 🌟 Good

Thu 22:00 good 🌟 Good

Thu 23:00 good 🌟 Good

Fri 00:00 poor ❌ Limited

Fri 01:00 poor ❌ Limited

Fri 02:00 poor ❌ Limited

Fri 03:00 poor ❌ Limited

Fri 04:00 poor ❌ Limited

Fri 05:00 poor ❌ Limited

Fri 06:00 poor ❌ Limited

Fri 07:00 poor ❌ Limited

Fri 08:00 poor ❌ Limited

Fri 09:00 poor ❌ Limited

Fri 10:00 poor ❌ Limited

Fri 11:00 good 🌟 Good

Fri 12:00 good 🌟 Good

Fri 13:00 good 🌟 Good

Fri 14:00 good 🌟 Good

Fri 15:00 good 🌟 Good

Fri 16:00 good 🌟 Good

Fri 17:00 fair ⚠️ Fair

Fri 18:00 fair ⚠️ Fair

Fri 19:00 good 🌟 Good

Fri 20:00 good 🌟 Good

Fri 21:00 good 🌟 Good

Fri 22:00 good 🌟 Good

Fri 23:00 good 🌟 Good

Sat 00:00 poor ❌ Limited

Sat 01:00 poor ❌ Limited

Sat 02:00 poor ❌ Limited

Sat 03:00 poor ❌ Limited

Sat 04:00 poor ❌ Limited

Sat 05:00 poor ❌ Limited

Sat 06:00 poor ❌ Limited

Sat 07:00 poor ❌ Limited

Sat 08:00 poor ❌ Limited

Sat 09:00 poor ❌ Limited

Sat 10:00 poor ❌ Limited

Sat 11:00 fair ⚠️ Fair

Sat 12:00 fair ⚠️ Fair

Sat 13:00 fair ⚠️ Fair

Sat 14:00 fair ⚠️ Fair

Sat 15:00 fair ⚠️ Fair

Sat 16:00 fair ⚠️ Fair

Sat 17:00 fair ⚠️ Fair

Sat 18:00 fair ⚠️ Fair

Sat 19:00 fair ⚠️ Fair

Sat 20:00 fair ⚠️ Fair

Sat 21:00 fair ⚠️ Fair

Sat 22:00 fair ⚠️ Fair

Sat 23:00 fair ⚠️ Fair

Sun 00:00 poor ❌ Limited

Sun 01:00 poor ❌ Limited

Sun 02:00 poor ❌ Limited

Sun 03:00 poor ❌ Limited

Sun 04:00 poor ❌ Limited

Sun 05:00 poor ❌ Limited

Sun 06:00 poor ❌ Limited

Sun 07:00 poor ❌ Limited

Sun 08:00 poor ❌ Limited

Sun 09:00 poor ❌ Limited

Sun 10:00 poor ❌ Limited

Sun 11:00 good 🌟 Good

Sun 12:00 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 and safety gate (outside daylight scores lower).

Detailed hourly data table

Time	Wave (m)	Wind (m/s)	Sea temp (°C)	Status
Thu 13:00	0.30 · good	0.64 · good	30.80 · out of range	good
Thu 14:00	0.30 · good	0.73 · good	30.90 · out of range	good
Thu 15:00	0.30 · good	1.32 · good	31.00 · out of range	good
Thu 16:00	0.30 · good	1.68 · good	31.00 · out of range	good
Thu 17:00	0.30 · good	1.50 · good	31.10 · out of range	good
Thu 18:00	0.30 · good	2.60 · good	31.20 · out of range	good
Thu 19:00	0.30 · good	3.69 · good	31.20 · out of range	good
Thu 20:00	0.30 · good	3.73 · good	31.20 · out of range	good
Thu 21:00	0.30 · good	3.36 · good	31.20 · out of range	good
Thu 22:00	0.30 · good	2.26 · good	31.20 · out of range	good
Thu 23:00	0.30 · good	2.60 · good	31.20 · out of range	good
Fri 00:00	0.30 · good	2.66 · good	31.20 · out of range	poor
Fri 01:00	0.28 · good	2.64 · good	31.20 · out of range	poor
Fri 02:00	0.28 · good	2.48 · good	31.20 · out of range	poor
Fri 03:00	0.26 · good	2.86 · good	31.20 · out of range	poor
Fri 04:00	0.26 · good	2.80 · good	31.10 · out of range	poor
Fri 05:00	0.26 · good	2.14 · good	31.10 · out of range	poor
Fri 06:00	0.26 · good	1.30 · good	31.10 · out of range	poor
Fri 07:00	0.26 · good	1.12 · good	31.10 · out of range	poor
Fri 08:00	0.26 · good	0.82 · good	31.00 · out of range	poor
Fri 09:00	0.26 · good	0.20 · good	31.00 · out of range	poor
Fri 10:00	0.26 · good	0.20 · good	31.00 · out of range	poor
Fri 11:00	0.26 · good	0.14 · good	31.00 · out of range	good
Fri 12:00	0.26 · good	0.50 · good	31.00 · out of range	good
Fri 13:00	0.26 · good	0.72 · good	31.00 · out of range	good
Fri 14:00	0.26 · good	1.08 · good	31.10 · out of range	good
Fri 15:00	0.26 · good	1.97 · good	31.10 · out of range	good
Fri 16:00	0.28 · good	3.49 · good	31.20 · out of range	good
Fri 17:00	0.28 · good	4.48 · good	31.30 · out of range	fair
Fri 18:00	0.30 · good	5.15 · good	31.30 · out of range	fair
Fri 19:00	0.30 · good	5.24 · good	31.40 · out of range	good
Fri 20:00	0.30 · good	5.19 · good	31.40 · out of range	good
Fri 21:00	0.30 · good	5.33 · good	31.40 · out of range	good
Fri 22:00	0.28 · good	4.40 · good	31.40 · out of range	good
Fri 23:00	0.28 · good	3.76 · good	31.40 · out of range	good
Sat 00:00	0.26 · good	3.70 · good	31.40 · out of range	poor
Sat 01:00	0.26 · good	1.52 · good	31.40 · out of range	poor
Sat 02:00	0.26 · good	2.10 · good	31.40 · out of range	poor
Sat 03:00	0.26 · good	2.27 · good	31.40 · out of range	poor
Sat 04:00	0.24 · good	2.56 · good	31.30 · out of range	poor
Sat 05:00	0.24 · good	2.33 · good	31.30 · out of range	poor
Sat 06:00	0.26 · good	3.76 · good	31.20 · out of range	poor
Sat 07:00	0.30 · good	4.48 · good	31.10 · out of range	poor
Sat 08:00	0.32 · good	4.89 · good	31.10 · out of range	poor
Sat 09:00	0.36 · good	5.45 · high	31.10 · out of range	poor
Sat 10:00	0.40 · high	5.81 · high	31.00 · out of range	poor
Sat 11:00	0.44 · high	5.52 · high	31.00 · out of range	fair
Sat 12:00	0.48 · high	5.75 · high	31.00 · out of range	fair
Sat 13:00	0.50 · high	5.46 · high	31.10 · out of range	fair
Sat 14:00	0.50 · high	5.46 · high	31.10 · out of range	fair
Sat 15:00	0.52 · high	5.14 · good	31.20 · out of range	fair
Sat 16:00	0.52 · high	5.05 · good	31.30 · out of range	fair
Sat 17:00	0.52 · high	5.91 · high	31.30 · out of range	fair
Sat 18:00	0.52 · high	5.32 · good	31.40 · out of range	fair
Sat 19:00	0.50 · high	4.65 · good	31.40 · out of range	fair
Sat 20:00	0.50 · high	5.55 · high	31.50 · out of range	fair
Sat 21:00	0.48 · high	5.08 · good	31.50 · out of range	fair
Sat 22:00	0.46 · high	5.20 · good	31.50 · out of range	fair
Sat 23:00	0.46 · high	4.34 · good	31.50 · out of range	fair
Sun 00:00	0.44 · high	4.16 · good	31.50 · out of range	poor
Sun 01:00	0.46 · high	3.80 · good	31.50 · out of range	poor
Sun 02:00	0.46 · high	4.74 · good	31.50 · out of range	poor
Sun 03:00	0.48 · high	5.38 · good	31.40 · out of range	poor
Sun 04:00	0.50 · high	5.56 · high	31.40 · out of range	poor
Sun 05:00	0.52 · high	4.72 · good	31.30 · out of range	poor
Sun 06:00	0.54 · high	5.39 · good	31.30 · out of range	poor
Sun 07:00	0.56 · high	5.75 · high	31.20 · out of range	poor
Sun 08:00	0.56 · high	5.64 · high	31.20 · out of range	poor
Sun 09:00	0.58 · high	5.77 · high	31.10 · out of range	poor
Sun 10:00	0.60 · high	5.77 · high	31.10 · out of range	poor
Sun 11:00	0.60 · high	5.55 · high	31.00 · out of range	good
Sun 12:00	0.62 · high	5.61 · high	31.00 · out of range	fair