SnorkelForecast.com

Kaanapali Black Rock Snorkel Report Today

USA · Updated Sun 10:59 (HST) · Source: Snapshot · Showing fallback/stale data

The skinny

Marginal Report Mon 05:45

Kaanapali Black Rock looks marginal today. The least-bad daylight window is around Tue 13:00, but waves is limiting the forecast.

Score: 3.1/10

Best time: Tue 13:00

Main risk: Waves

Best morning signal: Mon 06:00 (Poor).

Best afternoon signal: Mon 13:00 (Poor). Peak afternoon wind is about 7.4 m/s.

Email me when it is good Compare nearby spots

Best nearby spots

Ahihi Kinau 4.8/10 Fair · Mon 16:00 Maluaka Turtle Town 4.8/10 Fair · Mon 16:00 Ulua Mokapu 4.0/10 Fair · Tue 16:00

Weakest nearby now

Napili Bay Molokini Crater Honolua Bay

Sunrise

05:48

Sunset

19:11

Water

26.6°C

Max air

29.9°C

Sky

Cloudy

90% cloud

No safe 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

Monday

❌ poor conditions

Main blocker: Waves

Tuesday

❌ poor conditions

Main blocker: Waves

Best available hours

  • Tue 23:00 — Poor (0.32) · still limited by waves, wind
  • Mon 23:00 — Poor (0.31) · still limited by waves, wind
  • Mon 16:00 — Poor (0.31) · still limited by waves, wind

Why this verdict

Main blockers across the next 72 hours:

  • Waves (42 hours)
  • Wind (42 hours)
  • Tide/current (32 hours)

Upcoming high tides

Next early morning high tide: Tue 12:00

Tue 01:00, Tue 12:00, Wed 02:00

Nearby snorkel spot map

Compare nearby spots by score, forecast window and exposure before choosing a beach.

Ahihi Kinau Fair · Mon 16:00 4.8/10 Maluaka Turtle Town Fair · Mon 16:00 4.8/10 Ulua Mokapu Fair · Tue 16:00 4.0/10 Napili Bay Poor · Mon 22:00 3.0/10 Molokini Crater Poor · Mon 19:00 2.8/10 Honolua Bay Poor · Mon 23:00 2.7/10 Kapalua Bay Poor · Mon 23:00 2.7/10

Nearby alternatives in USA

Ahihi Kinau

⚠️ Fair

Anaehoomalu Bay

⚠️ Fair

Anini Beach

❌ Poor

Bahia Honda

⚠️ Fair

Advanced forecast data

Viewing historical data

Sun 15:00 – Wed 15:00 (HST)

Previous day Yesterday Next day Live

Snorkel Score (selected 24h)

Best snorkel score is 0.43 around Sun 06:00; 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 0.88m to 0.96m).

Wind is at or below 5.4m/s in 8/24 sampled hours (range 2.1 to 11.7m/s).

Tides range from 0.16m to 0.93m; 1 of 24 hours are in or near peak slack windows.

72-hour historical overview
poor ❌ Limited
fair ⚠️ Fair
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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 15:00 0.94 · high 2.80 · good 26.70 · good poor
Sun 16:00 0.94 · high 3.30 · good 26.70 · good fair
Sun 17:00 0.96 · high 6.20 · high 26.70 · good fair
Sun 18:00 0.96 · high 7.60 · high 26.70 · good poor
Sun 19:00 0.96 · high 9.00 · high 26.70 · good poor
Sun 20:00 0.96 · high 7.70 · high 26.80 · good poor
Sun 21:00 0.96 · high 6.40 · high 26.80 · good poor
Sun 22:00 0.96 · high 5.90 · high 26.90 · good poor
Sun 23:00 0.96 · high 5.50 · high 26.90 · good fair
Mon 00:00 0.96 · high 8.00 · high 27.00 · good poor
Mon 01:00 0.96 · high 9.50 · high 27.00 · good poor
Mon 02:00 0.96 · high 10.70 · high 26.90 · good poor
Mon 03:00 0.96 · high 11.70 · high 26.90 · good poor
Mon 04:00 0.94 · high 11.40 · high 26.90 · good poor
Mon 05:00 0.94 · high 11.70 · high 26.80 · good poor
Mon 06:00 0.92 · high 11.10 · high 26.80 · good poor
Mon 07:00 0.92 · high 8.90 · high 26.70 · good poor
Mon 08:00 0.90 · high 6.40 · high 26.70 · good poor
Mon 09:00 0.90 · high 4.20 · good 26.70 · good poor
Mon 10:00 0.90 · high 2.30 · good 26.70 · good poor
Mon 11:00 0.88 · high 2.10 · good 26.60 · good poor
Mon 12:00 0.88 · high 3.30 · good 26.60 · good poor
Mon 13:00 0.88 · high 2.30 · good 26.60 · good poor
Mon 14:00 0.88 · high 3.10 · good 26.60 · good poor
Mon 15:00 0.88 · high 7.20 · high 26.60 · good poor
Mon 16:00 0.88 · high 7.40 · high 26.60 · good poor
Mon 17:00 0.90 · high 7.70 · high 26.60 · good poor
Mon 18:00 0.90 · high 7.50 · high 26.60 · good poor
Mon 19:00 0.92 · high 7.70 · high 26.60 · good poor
Mon 20:00 0.92 · high 7.00 · high 26.70 · good poor
Mon 21:00 0.94 · high 8.00 · high 26.80 · good poor
Mon 22:00 0.94 · high 7.40 · high 26.90 · good poor
Mon 23:00 0.96 · high 7.40 · high 26.90 · good poor
Tue 00:00 0.96 · high 7.80 · high 27.00 · good poor
Tue 01:00 0.96 · high 8.80 · high 27.00 · good poor
Tue 02:00 0.96 · high 11.10 · high 26.90 · good poor
Tue 03:00 0.96 · high 11.20 · high 26.90 · good poor
Tue 04:00 0.96 · high 12.20 · high 26.80 · good poor
Tue 05:00 0.96 · high 13.70 · high 26.80 · good poor
Tue 06:00 0.96 · high 13.70 · high 26.70 · good poor
Tue 07:00 0.96 · high 15.20 · high 26.70 · good poor
Tue 08:00 0.94 · high 16.80 · high 26.70 · good poor
Tue 09:00 0.94 · high 15.70 · high 26.60 · good poor
Tue 10:00 0.92 · high 14.70 · high 26.60 · good poor
Tue 11:00 0.92 · high 13.80 · high 26.60 · good poor
Tue 12:00 0.90 · high 13.20 · high 26.60 · good poor
Tue 13:00 0.90 · high 13.00 · high 26.60 · good poor
Tue 14:00 0.88 · high 13.00 · high 26.50 · good poor
Tue 15:00 0.88 · high 13.10 · high 26.50 · good poor
Tue 16:00 0.88 · high 14.10 · high 26.50 · good poor
Tue 17:00 0.88 · high 14.10 · high 26.50 · good poor
Tue 18:00 0.88 · high 15.40 · high 26.50 · good poor
Tue 19:00 0.88 · high 16.40 · high 26.60 · good poor
Tue 20:00 0.88 · high 16.80 · high 26.60 · good poor
Tue 21:00 0.88 · high 15.10 · high 26.70 · good poor
Tue 22:00 0.88 · high 13.30 · high 26.70 · good poor
Tue 23:00 0.86 · high 14.50 · high 26.80 · good poor
Wed 00:00 0.86 · high 13.90 · high 26.80 · good poor
Wed 01:00 0.86 · high 12.90 · high 26.80 · good poor
Wed 02:00 0.84 · high 12.20 · high 26.80 · good poor
Wed 03:00 0.84 · high 12.00 · high 26.80 · good poor
Wed 04:00 0.84 · high 11.70 · high 26.80 · good poor
Wed 05:00 0.84 · high 10.70 · high 26.70 · good poor
Wed 06:00 0.84 · high 10.30 · high 26.70 · good poor
Wed 07:00 0.86 · high 10.10 · high 26.70 · good poor
Wed 08:00 0.86 · high 11.60 · high 26.70 · good poor
Wed 09:00 0.88 · high 11.30 · high 26.60 · good poor