MARINE REPORT / 72 HOURS

Catalina Island Snorkel Report Today

USA · Updated Sun 10:59 (EDT) · Source: Snapshot

The skinny

Marginal Data updated Sun 10:59 (EDT)

Catalina Island looks marginal today. The least-bad daylight window is around Sun 14:00, but waves is limiting the forecast.

Right now (forecast)

Fair · 3.6/10

Sun 11:00 (EDT)

Later today

Fair · 3.5/10

Sun 14:00 (EDT)

Next three days

Fair · 5.0/10

Mon 12:00 (EDT)

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

Score: 3.5/10

Best time: Sun 14:00

Main risk: Waves

No useful morning window is showing yet.

Best afternoon signal: Sun 14:00 (Fair). Peak afternoon wind is about 8.8 m/s.

Email me when it is good

Sunrise

09:55

Sunset

21:24

Water

21.7°C

Max air

17.1°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

Sunday

⚠️ Fair conditions

Main blocker: Waves

Monday

⚠️ Fair conditions

Main blocker: Waves

Tuesday

⚠️ Fair conditions

Main blocker: Waves

Best available hours

  • Mon 12:00: Fair (0.50) · still limited by waves, tide/current
  • Tue 14:00: Fair (0.50) · still limited by waves, tide/current
  • Tue 15:00: Fair (0.50) · still limited by waves, tide/current

Why this verdict

Main blockers across the next 72 hours:

  • Waves (70 hours)
  • Tide/current (69 hours)
  • Darkness (42 hours)

Jellyfish drift risk

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

Low · 26/100

Low peak drift risk around Sun 21:00.

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

Next early morning high tide: Mon 01:00

Sun 12:00, Mon 01:00, Mon 13:00, Tue 02:00, Tue 13:00, Wed 03:00

Nearby alternatives in USA

La Jolla Cove

122 km away

✅ Good

Crystal River

3429 km away

✅ Good

Dry Tortugas

3572 km away

❌ Poor

Looe Key

3711 km away

✅ Good

Advanced forecast data

Viewing current forecast

Sun 11:00 – Wed 11:00 (EDT)

Previous day Yesterday

Snorkel Score (next 24h)

Best snorkel score is 0.49 around Mon 10:00; 3 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 1.36m to 2.3m).

Wind is at or below 5.4m/s in 16/24 sampled hours (range 3.0 to 8.81m/s).

Tides range from -0.48m to 1.36m; 2 of 24 hours are in or near peak slack windows.

72-hour forecast overview
Poor ❌ Limited
Poor ❌ Limited
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
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Fair ⚠️ Fair
Fair ⚠️ Fair
Fair ⚠️ Fair
Fair ⚠️ Fair
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
Poor ❌ Limited
Fair ⚠️ Fair
Fair ⚠️ Fair
Fair ⚠️ Fair
Fair ⚠️ Fair
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
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 12:00 2.16 · high 7.82 · high 21.70 · good Poor
Sun 13:00 2.24 · high 8.04 · high 21.70 · good Poor
Sun 14:00 2.30 · high 8.63 · high 21.60 · good Fair
Sun 15:00 2.24 · high 8.81 · high 21.60 · good Poor
Sun 16:00 2.18 · high 8.35 · high 21.60 · good Poor
Sun 17:00 2.12 · high 7.63 · high 21.60 · good Poor
Sun 18:00 2.02 · high 6.42 · high 21.70 · good Poor
Sun 19:00 1.94 · high 5.85 · high 21.70 · good Poor
Sun 20:00 1.84 · high 5.39 · good 21.70 · good Poor
Sun 21:00 1.78 · high 4.53 · good 21.70 · good Poor
Sun 22:00 1.72 · high 3.07 · good 21.70 · good Poor
Sun 23:00 1.66 · high 3.07 · good 21.70 · good Poor
Mon 00:00 1.62 · high 3.40 · good 21.60 · good Poor
Mon 01:00 1.60 · high 3.67 · good 21.60 · good Poor
Mon 02:00 1.56 · high 4.22 · good 21.60 · good Poor
Mon 03:00 1.52 · high 4.07 · good 21.60 · good Poor
Mon 04:00 1.50 · high 4.54 · good 21.60 · good Poor
Mon 05:00 1.46 · high 4.30 · good 21.60 · good Poor
Mon 06:00 1.44 · high 4.39 · good 21.70 · good Poor
Mon 07:00 1.44 · high 3.11 · good 21.70 · good Poor
Mon 08:00 1.42 · high 3.54 · good 21.70 · good Poor
Mon 09:00 1.40 · high 4.64 · good 21.70 · good Poor
Mon 10:00 1.38 · high 3.44 · good 21.70 · good Fair
Mon 11:00 1.36 · high 3.00 · good 21.70 · good Fair
Mon 12:00 1.34 · high 5.02 · good 21.70 · good Fair
Mon 13:00 1.34 · high 5.29 · good 21.70 · good Fair
Mon 14:00 1.32 · high 5.02 · good 21.70 · good Fair
Mon 15:00 1.30 · high 6.07 · high 21.70 · good Fair
Mon 16:00 1.28 · high 5.72 · high 21.70 · good Fair
Mon 17:00 1.26 · high 5.11 · good 21.70 · good Fair
Mon 18:00 1.26 · high 4.37 · good 21.70 · good Fair
Mon 19:00 1.26 · high 5.28 · good 21.70 · good Fair
Mon 20:00 1.26 · high 4.24 · good 21.70 · good Poor
Mon 21:00 1.26 · high 3.77 · good 21.70 · good Poor
Mon 22:00 1.26 · high 2.83 · good 21.70 · good Poor
Mon 23:00 1.26 · high 2.21 · good 21.70 · good Poor
Tue 00:00 1.26 · high 2.60 · good 21.70 · good Poor
Tue 01:00 1.26 · high 2.28 · good 21.70 · good Poor
Tue 02:00 1.26 · high 2.69 · good 21.70 · good Poor
Tue 03:00 1.26 · high 2.30 · good 21.70 · good Poor
Tue 04:00 1.28 · high 1.75 · good 21.70 · good Poor
Tue 05:00 1.28 · high 2.26 · good 21.70 · good Poor
Tue 06:00 1.28 · high 2.75 · good 21.70 · good Poor
Tue 07:00 1.26 · high 2.02 · good 21.70 · good Poor
Tue 08:00 1.26 · high 2.47 · good 21.70 · good Poor
Tue 09:00 1.24 · high 2.66 · good 21.70 · good Poor
Tue 10:00 1.22 · high 2.55 · good 21.70 · good Fair
Tue 11:00 1.20 · high 2.41 · good 21.70 · good Fair
Tue 12:00 1.18 · high 2.10 · good 21.70 · good Fair
Tue 13:00 1.16 · high 1.73 · good 21.80 · good Fair
Tue 14:00 1.14 · high 1.43 · good 21.80 · good Fair
Tue 15:00 1.12 · high 1.58 · good 21.80 · good Fair
Tue 16:00 1.12 · high 1.70 · good 21.80 · good Fair
Tue 17:00 1.10 · high 1.84 · good 21.90 · good Fair
Tue 18:00 1.10 · high 2.19 · good 21.90 · good Fair
Tue 19:00 1.10 · high 2.80 · good 21.90 · good Fair
Tue 20:00 1.10 · high 3.26 · good 21.90 · good Poor
Tue 21:00 1.10 · high 3.64 · good 21.90 · good Poor
Tue 22:00 1.12 · high 3.52 · good 21.90 · good Poor
Tue 23:00 1.12 · high 4.43 · good 21.90 · good Poor
Wed 00:00 1.12 · high 4.96 · good 21.90 · good Poor
Wed 01:00 1.10 · high 4.55 · good 21.80 · good Poor
Wed 02:00 1.10 · high 4.26 · good 21.80 · good Poor
Wed 03:00 1.10 · high 3.89 · good 21.80 · good Poor
Wed 04:00 1.08 · high 3.82 · good 21.80 · good Poor
Wed 05:00 1.08 · high 3.92 · good 21.80 · good Poor
Wed 06:00 1.08 · high 3.85 · good 21.80 · good Poor
Wed 07:00 1.06 · high 3.36 · good 21.80 · good Poor
Wed 08:00 1.06 · high 2.53 · good 21.80 · good Poor
Wed 09:00 1.04 · high 2.01 · good 21.80 · good Poor