Can you snorkel in Catalina Island today?

Yes. The next good snorkeling window in Catalina Island starts Thu 13:00 and lasts until 15:00. Around 6% of the next 72 hours are suitable.

What is the best time of day to snorkel in Catalina Island?

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 Catalina Island 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.

Catalina Island Snorkel Report Today

USA · Updated Tue 04:14 (EDT) · Source: Snapshot

The skinny

Go in the best window Report Tue 17:23

Catalina Island has a usable snorkeling window around Thu 09:00. The main thing to watch is waves.

Score: 4.9/10

Best time: Thu 09:00

Main risk: Waves

No useful morning window is showing yet.

Best afternoon signal: Tue 18:00 (Fair). Peak afternoon wind is about 6.4 m/s.

Email me when it is good

Sunrise

08:59

Sunset

23:01

Water

22.4°C

Max air

24.4°C

Sky

Clear

0% cloud

Good window is available today

Next safe window: Thu 13:00–15:00 (6% of next 72h are suitable)

3-day planner Best available Show data

3-day planner

Tuesday

⚠️ fair conditions

Main blocker: Waves

Wednesday

⚠️ fair conditions

Main blocker: Waves

Thursday

✅ good conditions

Main blocker: Waves

Best available hours

Next safe window starts at Thu 13:00 until 15:00.

Why this verdict

Main blockers across the next 72 hours:

Waves (54 hours)
Wind (35 hours)
Tide/current (32 hours)

Jellyfish drift risk

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

Low · 23/100

Low peak drift risk around Tue 19:00.

water is warm enough for occasional jellyfish; 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

Tue 23:00, Thu 00:00, Thu 14:00

Nearby alternatives in USA

La Jolla Cove

122 km away

⚠️ Fair

Crystal River

3429 km away

✅ Good

Dry Tortugas

3572 km away

⚠️ Fair

Looe Key

3711 km away

⚠️ Fair

Advanced forecast data

Viewing historical data

Sun 21:00 – Wed 21:00 (EDT)

Previous day Yesterday Next day Live

Snorkel Score (selected 24h)

Best snorkel score is 0.46 around Mon 14:00; 4 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 0.7m to 0.72m).

Wind is at or below 5.4m/s in 24/24 sampled hours (range 0.32 to 4.88m/s).

Tides range from -1.12m to 1.43m; 2 of 24 hours are in or near peak slack windows.

72-hour historical overview

Sun 21:00 poor ❌ Limited

Sun 22:00 poor ❌ Limited

Sun 23:00 poor ❌ Limited

Mon 00:00 poor ❌ Limited

Mon 01:00 poor ❌ Limited

Mon 02:00 poor ❌ Limited

Mon 03:00 poor ❌ Limited

Mon 04:00 poor ❌ Limited

Mon 05:00 poor ❌ Limited

Mon 06:00 poor ❌ Limited

Mon 07:00 poor ❌ Limited

Mon 08:00 poor ❌ Limited

Mon 09:00 poor ❌ Limited

Mon 10:00 poor ❌ Limited

Mon 11:00 poor ❌ Limited

Mon 12:00 poor ❌ Limited

Mon 13:00 poor ❌ Limited

Mon 14:00 poor ❌ Limited

Mon 15:00 poor ❌ Limited

Mon 16:00 fair ⚠️ Fair

Mon 17:00 poor ❌ Limited

Mon 18:00 fair ⚠️ Fair

Mon 19:00 fair ⚠️ Fair

Mon 20:00 fair ⚠️ Fair

Mon 21:00 poor ❌ Limited

Mon 22:00 poor ❌ Limited

Mon 23:00 poor ❌ Limited

Tue 00:00 poor ❌ Limited

Tue 01:00 poor ❌ Limited

Tue 02:00 poor ❌ Limited

Tue 03:00 poor ❌ Limited

Tue 04:00 poor ❌ Limited

Tue 05:00 poor ❌ Limited

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 poor ❌ Limited

Tue 12:00 poor ❌ Limited

Tue 13:00 fair ⚠️ Fair

Tue 14:00 fair ⚠️ Fair

Tue 15:00 fair ⚠️ Fair

Tue 16:00 fair ⚠️ Fair

Tue 17:00 good 🌟 Good

Tue 18:00 fair ⚠️ Fair

Tue 19:00 fair ⚠️ Fair

Tue 20:00 fair ⚠️ Fair

Tue 21:00 fair ⚠️ Fair

Tue 22:00 fair ⚠️ Fair

Tue 23:00 fair ⚠️ Fair

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 poor ❌ Limited

Wed 12:00 poor ❌ Limited

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

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
Sun 21:00	0.70 · high	2.82 · good	21.40 · good	poor
Sun 22:00	0.70 · high	4.15 · good	21.50 · good	poor
Sun 23:00	0.72 · high	4.88 · good	21.50 · good	poor
Mon 00:00	0.72 · high	3.20 · good	21.50 · good	poor
Mon 01:00	0.72 · high	4.10 · good	21.50 · good	poor
Mon 02:00	0.70 · high	3.23 · good	21.50 · good	poor
Mon 03:00	0.70 · high	1.84 · good	21.40 · good	poor
Mon 04:00	0.70 · high	0.89 · good	21.30 · good	poor
Mon 05:00	0.70 · high	2.73 · good	21.30 · good	poor
Mon 06:00	0.70 · high	1.65 · good	21.20 · good	poor
Mon 07:00	0.70 · high	0.91 · good	21.20 · good	poor
Mon 08:00	0.70 · high	0.45 · good	21.10 · good	poor
Mon 09:00	0.70 · high	1.39 · good	21.10 · good	poor
Mon 10:00	0.70 · high	0.85 · good	21.10 · good	poor
Mon 11:00	0.70 · high	1.86 · good	21.10 · good	poor
Mon 12:00	0.70 · high	2.86 · good	21.10 · good	poor
Mon 13:00	0.70 · high	2.06 · good	21.10 · good	poor
Mon 14:00	0.70 · high	3.14 · good	21.10 · good	poor
Mon 15:00	0.70 · high	1.91 · good	21.20 · good	poor
Mon 16:00	0.70 · high	3.26 · good	21.20 · good	fair
Mon 17:00	0.70 · high	3.37 · good	21.30 · good	poor
Mon 18:00	0.70 · high	0.32 · good	21.30 · good	fair
Mon 19:00	0.70 · high	1.52 · good	21.40 · good	fair
Mon 20:00	0.70 · high	1.30 · good	21.50 · good	fair
Mon 21:00	0.70 · high	2.02 · good	21.50 · good	poor
Mon 22:00	0.70 · high	3.46 · good	21.60 · good	poor
Mon 23:00	0.72 · high	3.87 · good	21.70 · good	poor
Tue 00:00	0.72 · high	5.27 · good	21.70 · good	poor
Tue 01:00	0.74 · high	4.36 · good	21.60 · good	poor
Tue 02:00	0.74 · high	4.14 · good	21.60 · good	poor
Tue 03:00	0.76 · high	3.37 · good	21.50 · good	poor
Tue 04:00	0.76 · high	2.34 · good	21.40 · good	poor
Tue 05:00	0.76 · high	1.34 · good	21.30 · good	poor
Tue 06:00	0.76 · high	1.87 · good	21.20 · good	poor
Tue 07:00	0.76 · high	2.34 · good	21.20 · good	poor
Tue 08:00	0.76 · high	3.45 · good	21.10 · good	poor
Tue 09:00	0.76 · high	1.57 · good	21.10 · good	poor
Tue 10:00	0.76 · high	0.70 · good	21.00 · good	poor
Tue 11:00	0.74 · high	1.82 · good	21.00 · good	poor
Tue 12:00	0.74 · high	2.05 · good	21.00 · good	poor
Tue 13:00	0.74 · high	1.30 · good	21.00 · good	fair
Tue 14:00	0.72 · high	1.80 · good	21.00 · good	fair
Tue 15:00	0.72 · high	2.22 · good	21.00 · good	fair
Tue 16:00	0.72 · high	1.58 · good	21.10 · good	fair
Tue 17:00	0.72 · high	0.99 · good	21.10 · good	good
Tue 18:00	0.72 · high	1.35 · good	21.10 · good	fair
Tue 19:00	0.74 · high	2.15 · good	21.20 · good	fair
Tue 20:00	0.76 · high	2.20 · good	21.20 · good	fair
Tue 21:00	0.78 · high	3.16 · good	21.30 · good	fair
Tue 22:00	0.82 · high	3.55 · good	21.30 · good	fair
Tue 23:00	0.86 · high	3.91 · good	21.30 · good	fair
Wed 00:00	0.90 · high	4.52 · good	21.30 · good	poor
Wed 01:00	0.90 · high	4.54 · good	21.30 · good	poor
Wed 02:00	0.88 · high	4.32 · good	21.20 · good	poor
Wed 03:00	0.88 · high	3.81 · good	21.10 · good	poor
Wed 04:00	0.88 · high	2.78 · good	21.00 · good	poor
Wed 05:00	0.86 · high	2.35 · good	20.90 · good	poor
Wed 06:00	0.86 · high	1.57 · good	20.80 · good	poor
Wed 07:00	0.80 · high	2.55 · good	21.20 · good	poor
Wed 08:00	0.80 · high	2.16 · good	21.10 · good	poor
Wed 09:00	0.80 · high	1.21 · good	21.10 · good	poor
Wed 10:00	0.80 · high	1.04 · good	21.10 · good	poor
Wed 11:00	0.78 · high	0.41 · good	21.10 · good	poor
Wed 12:00	0.78 · high	1.08 · good	21.10 · good	poor
Wed 13:00	0.78 · high	0.92 · good	21.10 · good	fair
Wed 14:00	0.78 · high	1.02 · good	21.20 · good	fair
Wed 15:00	0.78 · high	0.36 · good	21.20 · good	fair
Wed 16:00	0.76 · high	0.14 · good	21.30 · good	fair
Wed 17:00	0.76 · high	0.22 · good	21.40 · good	fair
Wed 18:00	0.74 · high	1.27 · good	21.50 · good	fair
Wed 19:00	0.74 · high	1.75 · good	21.60 · good	fair
Wed 20:00	0.72 · high	1.50 · good	21.80 · good	fair