Wednesday
⚠️ fair conditions
Main blocker: Waves
Catalina Island Snorkel Report Today
USA · Updated Tue 04:14 (EDT) · Source: Snapshot · Showing fallback/stale data
The skinny
Go in the best window Report Wed 16:34Catalina Island has a usable snorkeling window around Thu 09:00. The main thing to watch is waves.
Score: 6.2/10
Best time: Thu 09:00
Main risk: Waves
No useful morning window is showing yet.
Best afternoon signal: Wed 17:00 (Fair). Peak afternoon wind is about 8.7 m/s.
Good window is available today
Next safe window: Thu 13:00–15:00 (10% of next 72h are suitable)
3-day planner
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 (31 hours)
- Darkness (17 hours)
- Wind (15 hours)
Jellyfish drift risk
Drift estimate from wind, swell, current and warm water.
Low peak drift risk around Wed 18:00.
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
Thu 00:00, Thu 14:00
Nearby alternatives in USA
Advanced forecast data
Viewing historical data
Sun 20:00 – Wed 20:00 (EDT)
Snorkel Score (selected 24h)
Best snorkel score is 0.28 around Sun 19:00; 0 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 1.1m to 1.36m).
Wind is at or below 5.4m/s in 0/24 sampled hours (range 8.9 to 20.4m/s).
Tides range from -0.84m to 1.11m; 2 of 24 hours are in or near peak slack windows.
72-hour historical overview
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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 20:00 | 1.30 · high | 8.90 · high | 19.90 · out of range | poor |
| Sun 21:00 | 1.28 · high | 9.90 · high | 20.10 · out of range | poor |
| Sun 22:00 | 1.28 · high | 14.00 · high | 20.20 · out of range | poor |
| Sun 23:00 | 1.28 · high | 16.80 · high | 20.20 · out of range | poor |
| Mon 00:00 | 1.28 · high | 19.30 · high | 20.30 · out of range | poor |
| Mon 01:00 | 1.30 · high | 20.10 · high | 20.30 · out of range | poor |
| Mon 02:00 | 1.30 · high | 20.40 · high | 20.20 · out of range | poor |
| Mon 03:00 | 1.32 · high | 17.30 · high | 20.20 · out of range | poor |
| Mon 04:00 | 1.34 · high | 15.30 · high | 20.10 · out of range | poor |
| Mon 05:00 | 1.34 · high | 12.60 · high | 20.00 · out of range | poor |
| Mon 06:00 | 1.36 · high | 11.20 · high | 20.00 · out of range | poor |
| Mon 07:00 | 1.34 · high | 10.70 · high | 19.90 · out of range | poor |
| Mon 08:00 | 1.34 · high | 9.20 · high | 19.90 · out of range | poor |
| Mon 09:00 | 1.32 · high | 9.40 · high | 19.90 · out of range | poor |
| Mon 10:00 | 1.30 · high | 10.90 · high | 19.80 · out of range | poor |
| Mon 11:00 | 1.26 · high | 11.60 · high | 19.80 · out of range | poor |
| Mon 12:00 | 1.24 · high | 12.30 · high | 19.80 · out of range | poor |
| Mon 13:00 | 1.22 · high | 13.90 · high | 19.80 · out of range | poor |
| Mon 14:00 | 1.18 · high | 13.80 · high | 19.90 · out of range | poor |
| Mon 15:00 | 1.16 · high | 14.70 · high | 19.90 · out of range | poor |
| Mon 16:00 | 1.14 · high | 14.80 · high | 19.90 · out of range | poor |
| Mon 17:00 | 1.12 · high | 14.80 · high | 20.00 · out of range | poor |
| Mon 18:00 | 1.10 · high | 14.80 · high | 20.00 · out of range | poor |
| Mon 19:00 | 1.10 · high | 13.10 · high | 20.10 · out of range | poor |
| Mon 20:00 | 1.08 · high | 12.30 · high | 20.20 · out of range | poor |
| Mon 21:00 | 1.08 · high | 12.10 · high | 20.30 · out of range | poor |
| Mon 22:00 | 1.08 · high | 10.90 · high | 20.40 · out of range | poor |
| Mon 23:00 | 1.06 · high | 9.20 · high | 20.50 · out of range | poor |
| Tue 00:00 | 1.06 · high | 5.80 · high | 20.60 · good | poor |
| Tue 01:00 | 1.06 · high | 5.00 · good | 20.60 · good | poor |
| Tue 02:00 | 1.06 · high | 11.20 · high | 20.50 · out of range | poor |
| Tue 03:00 | 1.06 · high | 2.70 · good | 20.40 · out of range | poor |
| Tue 04:00 | 1.06 · high | 2.40 · good | 20.40 · out of range | poor |
| Tue 05:00 | 1.06 · high | 4.50 · good | 20.30 · out of range | poor |
| Tue 06:00 | 1.06 · high | 9.60 · high | 20.20 · out of range | poor |
| Tue 07:00 | 1.06 · high | 9.70 · high | 20.20 · out of range | poor |
| Tue 08:00 | 1.08 · high | 6.60 · high | 20.20 · out of range | poor |
| Tue 09:00 | 1.08 · high | 5.50 · high | 20.10 · out of range | poor |
| Tue 10:00 | 1.08 · high | 1.10 · good | 20.10 · out of range | poor |
| Tue 11:00 | 1.10 · high | 2.50 · good | 20.10 · out of range | poor |
| Tue 12:00 | 1.12 · high | 2.50 · good | 19.90 · out of range | poor |
| Tue 13:00 | 1.10 · high | 4.20 · good | 19.90 · out of range | poor |
| Tue 14:00 | 1.08 · high | 3.30 · good | 19.90 · out of range | fair |
| Tue 15:00 | 1.06 · high | 5.30 · good | 20.00 · out of range | poor |
| Tue 16:00 | 1.04 · high | 5.70 · high | 20.00 · out of range | poor |
| Tue 17:00 | 1.04 · high | 10.80 · high | 20.00 · out of range | poor |
| Tue 18:00 | 1.02 · high | 11.70 · high | 20.00 · out of range | poor |
| Tue 19:00 | 1.00 · high | 11.20 · high | 20.10 · out of range | poor |
| Tue 20:00 | 1.00 · high | 13.80 · high | 20.10 · out of range | poor |
| Tue 21:00 | 0.98 · high | 18.90 · high | 20.20 · out of range | poor |
| Tue 22:00 | 0.98 · high | 21.90 · high | 20.30 · out of range | poor |
| Tue 23:00 | 0.98 · high | 22.40 · high | 20.30 · out of range | poor |
| Wed 00:00 | 0.98 · high | 22.30 · high | 20.30 · out of range | poor |
| Wed 01:00 | 0.98 · high | 21.10 · high | 20.30 · out of range | poor |
| Wed 02:00 | 0.98 · high | 19.70 · high | 20.30 · out of range | poor |
| Wed 03:00 | 0.98 · high | 17.80 · high | 20.30 · out of range | poor |
| Wed 04:00 | 0.98 · high | 16.20 · high | 20.20 · out of range | poor |
| Wed 05:00 | 0.98 · high | 14.40 · high | 20.20 · out of range | poor |
| Wed 06:00 | 0.98 · high | 13.10 · high | 20.10 · out of range | poor |
| Wed 07:00 | 0.98 · high | 12.20 · high | 20.10 · out of range | poor |
| Wed 08:00 | 0.98 · high | 10.30 · high | 20.10 · out of range | poor |
| Wed 09:00 | 0.98 · high | 10.80 · high | 20.00 · out of range | poor |
| Wed 10:00 | 0.98 · high | 11.00 · high | 20.00 · out of range | poor |
| Wed 11:00 | 0.98 · high | 10.20 · high | 20.00 · out of range | poor |
| Wed 12:00 | 0.98 · high | 11.40 · high | 20.00 · out of range | poor |
| Wed 13:00 | 0.98 · high | 7.30 · high | 20.00 · out of range | poor |
| Wed 14:00 | 0.98 · high | 8.60 · high | 20.00 · out of range | poor |
| Wed 15:00 | 0.98 · high | 7.10 · high | 20.00 · out of range | poor |
| Wed 16:00 | 0.98 · high | 4.50 · good | 20.00 · out of range | poor |
| Wed 17:00 | 0.96 · high | 0.80 · good | 20.00 · out of range | fair |
| Wed 18:00 | 0.96 · high | 2.30 · good | 20.10 · out of range | poor |
| Wed 19:00 | 0.96 · high | 3.70 · good | 20.10 · out of range | fair |