Can you snorkel in Key Largo today?

Yes. The next good snorkeling window in Key Largo starts Wed 15:00. Around 22% 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 Tue 04:14 (EDT) · Source: Snapshot · Showing fallback/stale data

The skinny

Go in the best window Report Wed 02:31

Key Largo has a usable snorkeling window around Wed 11:00. The main thing to watch is sea temperature.

Score: 6.2/10

Best time: Wed 11:00

Main risk: Sea Temperature

Best morning signal: Wed 11:00 (Good).

Best afternoon signal: Wed 18:00 (Good). Peak afternoon wind is about 6.3 m/s.

Email me when it is good

Sunrise

06:44

Sunset

20:11

Water

31.0°C

Max air

31.5°C

Sky

Cloudy

74% cloud

Good window is available today

Next safe window: Wed 15:00 (22% of next 72h are suitable)

3-day planner Best available Show data

3-day planner

Wednesday

✅ good conditions

Main blocker: Waves

Thursday

✅ good conditions

Main blocker: Sea temperature

Best available hours

Next safe window starts at Wed 15:00.

Why this verdict

Main blockers across the next 72 hours:

Sea temperature (45 hours)
Waves (25 hours)
Wind (24 hours)

Jellyfish drift risk

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

Low · 32/100

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: Wed 10:00

Wed 10:00, Thu 01:00, Thu 10:00, Fri 02:00

Nearby alternatives in USA

Bahia Honda

97 km away

✅ Good

Looe Key

114 km away

❌ Poor

Dry Tortugas

250 km away

❌ Poor

Crystal River

475 km away

✅ Good

Advanced forecast data

Viewing historical data

Tue 06:00 – Fri 06:00 (EDT)

Previous day Yesterday Next day Live

Snorkel Score (selected 24h)

Best snorkel score is 0.65 around Tue 07:00; 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.

21/24 sampled hours stay at or below 0.36m (range 0.2m to 0.38m).

Wind is at or below 5.4m/s in 21/24 sampled hours (range 0.98 to 6.62m/s).

Tides range from -0.39m to -0.05m; 1 of 24 hours are in or near peak slack windows.

72-hour historical overview

Tue 06:00 poor ❌ Limited

Tue 07:00 poor ❌ Limited

Tue 08:00 poor ❌ Limited

Tue 09:00 poor ❌ Limited

Tue 10:00 poor ❌ Limited

Tue 11:00 good 🌟 Good

Tue 12:00 good 🌟 Good

Tue 13:00 good 🌟 Good

Tue 14:00 good 🌟 Good

Tue 15:00 good 🌟 Good

Tue 16:00 good 🌟 Good

Tue 17:00 fair ⚠️ Fair

Tue 18:00 good 🌟 Good

Tue 19:00 fair ⚠️ Fair

Tue 20:00 fair ⚠️ Fair

Tue 21:00 good 🌟 Good

Tue 22:00 good 🌟 Good

Tue 23:00 good 🌟 Good

Wed 00:00 poor ❌ Limited

Wed 01:00 poor ❌ Limited

Wed 02:00 poor ❌ Limited

Wed 03:00 poor ❌ Limited

Wed 04:00 poor ❌ Limited

Wed 05:00 poor ❌ Limited

Wed 06:00 poor ❌ Limited

Wed 07:00 poor ❌ Limited

Wed 08:00 poor ❌ Limited

Wed 09:00 poor ❌ Limited

Wed 10:00 poor ❌ Limited

Wed 11:00 fair ⚠️ Fair

Wed 12:00 fair ⚠️ Fair

Wed 13:00 fair ⚠️ Fair

Wed 14:00 fair ⚠️ Fair

Wed 15:00 fair ⚠️ Fair

Wed 16:00 fair ⚠️ Fair

Wed 17:00 fair ⚠️ Fair

Wed 18:00 fair ⚠️ Fair

Wed 19:00 fair ⚠️ Fair

Wed 20:00 fair ⚠️ Fair

Wed 21:00 fair ⚠️ Fair

Wed 22:00 fair ⚠️ Fair

Wed 23:00 fair ⚠️ Fair

Thu 00:00 poor ❌ Limited

Thu 01:00 poor ❌ Limited

Thu 02:00 poor ❌ Limited

Thu 03:00 poor ❌ Limited

Thu 04:00 poor ❌ Limited

Thu 05:00 poor ❌ Limited

Thu 06:00 poor ❌ Limited

Thu 07:00 poor ❌ Limited

Thu 08:00 poor ❌ Limited

Thu 09:00 poor ❌ Limited

Thu 10:00 poor ❌ Limited

Thu 11:00 fair ⚠️ Fair

Thu 12:00 fair ⚠️ Fair

Thu 13:00 fair ⚠️ Fair

Thu 14:00 fair ⚠️ Fair

Thu 15:00 fair ⚠️ Fair

Thu 16:00 fair ⚠️ Fair

Thu 17:00 fair ⚠️ Fair

Thu 18:00 fair ⚠️ Fair

Thu 19:00 fair ⚠️ Fair

Thu 20:00 fair ⚠️ Fair

Thu 21:00 fair ⚠️ Fair

Thu 22:00 fair ⚠️ Fair

Thu 23:00 fair ⚠️ Fair

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

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
Tue 06:00	0.20 · good	3.67 · good	31.80 · out of range	poor
Tue 07:00	0.22 · good	4.21 · good	31.70 · out of range	poor
Tue 08:00	0.24 · good	3.81 · good	31.70 · out of range	poor
Tue 09:00	0.26 · good	3.77 · good	31.70 · out of range	poor
Tue 10:00	0.26 · good	4.06 · good	31.60 · out of range	poor
Tue 11:00	0.24 · good	4.16 · good	31.60 · out of range	good
Tue 12:00	0.24 · good	4.03 · good	31.60 · out of range	good
Tue 13:00	0.24 · good	3.88 · good	31.70 · out of range	good
Tue 14:00	0.22 · good	3.89 · good	31.70 · out of range	good
Tue 15:00	0.22 · good	3.72 · good	31.80 · out of range	good
Tue 16:00	0.22 · good	2.88 · good	31.90 · out of range	good
Tue 17:00	0.22 · good	6.00 · high	32.00 · out of range	fair
Tue 18:00	0.22 · good	2.40 · good	32.00 · out of range	good
Tue 19:00	0.24 · good	6.62 · high	32.10 · out of range	fair
Tue 20:00	0.26 · good	6.21 · high	32.10 · out of range	fair
Tue 21:00	0.28 · good	1.25 · good	32.10 · out of range	good
Tue 22:00	0.30 · good	0.98 · good	32.10 · out of range	good
Tue 23:00	0.32 · good	2.43 · good	32.10 · out of range	good
Wed 00:00	0.34 · good	1.61 · good	32.10 · out of range	poor
Wed 01:00	0.36 · good	2.64 · good	32.10 · out of range	poor
Wed 02:00	0.36 · good	2.82 · good	32.10 · out of range	poor
Wed 03:00	0.38 · high	2.98 · good	32.00 · out of range	poor
Wed 04:00	0.38 · high	3.55 · good	32.00 · out of range	poor
Wed 05:00	0.38 · high	4.22 · good	31.90 · out of range	poor
Wed 06:00	0.38 · high	4.34 · good	31.90 · out of range	poor
Wed 07:00	0.38 · high	4.70 · good	31.80 · out of range	poor
Wed 08:00	0.40 · high	5.16 · good	31.80 · out of range	poor
Wed 09:00	0.40 · high	5.26 · good	31.70 · out of range	poor
Wed 10:00	0.42 · high	5.61 · high	31.70 · out of range	poor
Wed 11:00	0.42 · high	5.66 · high	31.70 · out of range	fair
Wed 12:00	0.44 · high	5.27 · good	31.70 · out of range	fair
Wed 13:00	0.46 · high	4.92 · good	31.70 · out of range	fair
Wed 14:00	0.50 · high	4.44 · good	31.70 · out of range	fair
Wed 15:00	0.52 · high	4.78 · good	31.80 · out of range	fair
Wed 16:00	0.54 · high	5.07 · good	31.80 · out of range	fair
Wed 17:00	0.56 · high	5.59 · high	31.90 · out of range	fair
Wed 18:00	0.58 · high	5.99 · high	31.90 · out of range	fair
Wed 19:00	0.58 · high	5.86 · high	31.90 · out of range	fair
Wed 20:00	0.56 · high	5.28 · good	32.00 · out of range	fair
Wed 21:00	0.56 · high	5.07 · good	32.00 · out of range	fair
Wed 22:00	0.54 · high	5.19 · good	32.00 · out of range	fair
Wed 23:00	0.54 · high	5.46 · high	32.00 · out of range	fair
Thu 00:00	0.52 · high	4.98 · good	32.00 · out of range	poor
Thu 01:00	0.52 · high	5.04 · good	31.90 · out of range	poor
Thu 02:00	0.52 · high	5.10 · good	31.90 · out of range	poor
Thu 03:00	0.52 · high	5.04 · good	31.80 · out of range	poor
Thu 04:00	0.56 · high	4.70 · good	31.80 · out of range	poor
Thu 05:00	0.58 · high	5.16 · good	31.70 · out of range	poor
Thu 06:00	0.62 · high	5.24 · good	31.70 · out of range	poor
Thu 07:00	0.64 · high	5.77 · high	31.60 · out of range	poor
Thu 08:00	0.68 · high	6.64 · high	31.60 · out of range	poor
Thu 09:00	0.86 · high	5.26 · good	31.30 · out of range	poor
Thu 10:00	0.84 · high	5.42 · high	31.20 · out of range	poor
Thu 11:00	0.84 · high	5.29 · good	31.20 · out of range	fair
Thu 12:00	0.82 · high	5.35 · good	31.20 · out of range	fair
Thu 13:00	0.80 · high	5.63 · high	31.20 · out of range	fair
Thu 14:00	0.80 · high	5.38 · good	31.20 · out of range	fair
Thu 15:00	0.78 · high	5.30 · good	31.30 · out of range	fair
Thu 16:00	0.76 · high	5.80 · high	31.40 · out of range	fair
Thu 17:00	0.74 · high	4.60 · good	31.40 · out of range	fair
Thu 18:00	0.72 · high	5.42 · high	31.50 · out of range	fair
Thu 19:00	0.72 · high	5.52 · high	31.50 · out of range	fair
Thu 20:00	0.74 · high	5.51 · high	31.50 · out of range	fair
Thu 21:00	0.74 · high	5.51 · high	31.50 · out of range	fair
Thu 22:00	0.76 · high	5.12 · good	31.50 · out of range	fair
Thu 23:00	0.76 · high	4.97 · good	31.50 · out of range	fair
Fri 00:00	0.78 · high	5.13 · good	31.50 · out of range	poor
Fri 01:00	0.78 · high	6.04 · high	31.50 · out of range	poor
Fri 02:00	0.78 · high	6.11 · high	31.40 · out of range	poor
Fri 03:00	0.78 · high	6.26 · high	31.40 · out of range	poor
Fri 04:00	0.82 · high	6.31 · high	31.30 · out of range	poor
Fri 05:00	0.84 · high	5.24 · good	31.20 · out of range	poor