SnorkelForecast.com

Napili Bay Snorkel Report Today

USA · Updated Tue 04:13 (HST) · Source: Snapshot

The skinny

Marginal Report Tue 04:42

Napili Bay looks marginal today. The least-bad daylight window is around Tue 08:00, but waves is limiting the forecast.

Score: 3.9/10

Best time: Tue 08:00

Main risk: Waves

Best morning signal: Tue 08:00 (Fair).

Best afternoon signal: Tue 12:00 (Poor). Peak afternoon wind is about 5.5 m/s.

Email me when it is good Compare nearby spots Tours & water activities

Best nearby spots

Ahihi Kinau 5.0/10 Fair · Tue 16:00 Maluaka Turtle Town 5.0/10 Fair · Tue 16:00 Kaanapali Black Rock 4.8/10 Fair · Tue 17:00

Sunrise

05:56

Sunset

19:09

Water

27.0°C

Max air

28.3°C

Sky

Cloudy

82% 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

Tuesday

⚠️ fair conditions

Main blocker: Waves

Wednesday

❌ poor conditions

Main blocker: Waves

Thursday

⚠️ fair conditions

Main blocker: Waves

Best available hours

  • Tue 18:00 — Fair (0.39) · still limited by waves, tide/current
  • Tue 16:00 — Fair (0.37) · still limited by waves, tide/current
  • Thu 16:00 — Fair (0.37) · still limited by waves, wind

Why this verdict

Main blockers across the next 72 hours:

  • Waves (61 hours)
  • Tide/current (61 hours)
  • Wind (52 hours)

Jellyfish drift risk

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

Low · 34/100

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

Tue 20:00, Thu 22:00

Tours and water activities near Napili Bay

Local operators found via Tripadvisor. Check conditions before you book.

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West Maui kayak tours that fit calmer nearshore days.

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Nearby snorkel spot map

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

Ahihi Kinau Fair · Tue 16:00 5.0/10 Maluaka Turtle Town Fair · Tue 16:00 5.0/10 Kaanapali Black Rock Fair · Tue 17:00 4.8/10 Kaanapali Beach Fair · Tue 17:00 4.7/10 Honolua Bay Fair · Tue 18:00 4.6/10 Kapalua Bay Fair · Tue 18:00 4.6/10 Molokini Crater Fair · Thu 18:00 4.4/10 Ulua Mokapu Fair · Tue 17:00 3.9/10

Nearby alternatives in USA

Kapalua Bay

0 km away

❌ Poor

Honolua Bay

3 km away

❌ Poor

Kaanapali Beach

9 km away

❌ Poor

Kaanapali Black Rock

9 km away

❌ Poor

Advanced forecast data

Viewing historical data

Tue 14:00 – Fri 14:00 (HST)

Previous day Yesterday Next day Live

Snorkel Score (selected 24h)

Best snorkel score is 0.42 around Tue 06:00; 6 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 0.8m to 0.98m).

Wind is at or below 5.4m/s in 20/24 sampled hours (range 0.7 to 5.63m/s).

Tides range from 0.06m to 1.07m; 1 of 24 hours are in or near peak slack windows.

72-hour historical overview
poor ❌ Limited
poor ❌ Limited
fair ⚠️ Fair
fair ⚠️ Fair
fair ⚠️ Fair
fair ⚠️ Fair
fair ⚠️ Fair
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
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
poor ❌ Limited
poor ❌ Limited
fair ⚠️ Fair
fair ⚠️ Fair
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
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 14:00 0.88 · high 4.78 · good 26.60 · good poor
Tue 15:00 0.88 · high 4.76 · good 26.60 · good poor
Tue 16:00 0.90 · high 4.76 · good 26.60 · good fair
Tue 17:00 0.90 · high 4.83 · good 26.60 · good fair
Tue 18:00 0.92 · high 5.03 · good 26.60 · good fair
Tue 19:00 0.94 · high 5.18 · good 26.70 · good fair
Tue 20:00 0.94 · high 5.44 · high 26.70 · good fair
Tue 21:00 0.96 · high 5.48 · high 26.80 · good poor
Tue 22:00 0.96 · high 5.63 · high 26.80 · good poor
Tue 23:00 0.98 · high 5.35 · good 26.80 · good fair
Wed 00:00 0.98 · high 5.27 · good 26.90 · good poor
Wed 01:00 0.98 · high 5.54 · high 26.90 · good poor
Wed 02:00 0.98 · high 5.37 · good 26.90 · good poor
Wed 03:00 0.98 · high 5.02 · good 26.90 · good poor
Wed 04:00 0.96 · high 4.81 · good 26.90 · good poor
Wed 05:00 0.96 · high 4.47 · good 26.90 · good poor
Wed 06:00 0.94 · high 4.08 · good 26.90 · good poor
Wed 07:00 0.86 · high 3.89 · good 26.90 · good poor
Wed 08:00 0.86 · high 3.61 · good 26.90 · good poor
Wed 09:00 0.84 · high 3.12 · good 26.80 · good poor
Wed 10:00 0.82 · high 2.51 · good 26.80 · good poor
Wed 11:00 0.82 · high 1.72 · good 26.80 · good poor
Wed 12:00 0.80 · high 0.92 · good 26.80 · good poor
Wed 13:00 0.80 · high 0.70 · good 26.80 · good poor
Wed 14:00 0.78 · high 0.63 · good 26.80 · good poor
Wed 15:00 0.78 · high 0.82 · good 26.80 · good poor
Wed 16:00 0.78 · high 1.01 · good 26.80 · good fair
Wed 17:00 0.78 · high 1.76 · good 26.80 · good fair
Wed 18:00 0.78 · high 2.17 · good 26.80 · good fair
Wed 19:00 0.78 · high 2.59 · good 26.90 · good fair
Wed 20:00 0.78 · high 3.08 · good 26.90 · good fair
Wed 21:00 0.78 · high 3.68 · good 27.00 · good fair
Wed 22:00 0.80 · high 3.87 · good 27.10 · good fair
Wed 23:00 0.82 · high 3.89 · good 27.20 · good fair
Thu 00:00 0.84 · high 3.51 · good 27.20 · good poor
Thu 01:00 0.86 · high 3.64 · good 27.20 · good poor
Thu 02:00 0.86 · high 4.53 · good 27.20 · good poor
Thu 03:00 0.88 · high 5.21 · good 27.20 · good poor
Thu 04:00 0.90 · high 5.08 · good 27.20 · good poor
Thu 05:00 0.90 · high 4.99 · good 27.10 · good poor
Thu 06:00 0.92 · high 5.05 · good 27.10 · good poor
Thu 07:00 0.92 · high 5.03 · good 27.10 · good poor
Thu 08:00 0.92 · high 4.92 · good 27.10 · good poor
Thu 09:00 0.92 · high 4.43 · good 27.10 · good poor
Thu 10:00 0.90 · high 3.72 · good 27.10 · good poor
Thu 11:00 0.88 · high 2.94 · good 27.10 · good poor
Thu 12:00 0.86 · high 2.26 · good 27.10 · good poor
Thu 13:00 0.86 · high 2.38 · good 27.10 · good poor
Thu 14:00 0.84 · high 2.77 · good 27.00 · good poor
Thu 15:00 0.84 · high 3.99 · good 27.00 · good poor
Thu 16:00 0.84 · high 4.68 · good 27.00 · good fair
Thu 17:00 0.82 · high 5.16 · good 27.00 · good fair
Thu 18:00 0.82 · high 5.51 · high 27.00 · good poor
Thu 19:00 0.86 · high 5.57 · high 27.10 · good fair
Thu 20:00 0.88 · high 6.38 · high 27.10 · good poor
Thu 21:00 0.92 · high 6.37 · high 27.20 · good poor
Thu 22:00 0.96 · high 6.40 · high 27.20 · good poor
Thu 23:00 0.98 · high 6.49 · high 27.20 · good poor
Fri 00:00 1.02 · high 6.89 · high 27.30 · good poor
Fri 01:00 1.04 · high 6.73 · high 27.30 · good poor
Fri 02:00 1.04 · high 6.72 · high 27.30 · good poor
Fri 03:00 1.06 · high 6.35 · high 27.30 · good poor
Fri 04:00 1.06 · high 6.40 · high 27.30 · good poor
Fri 05:00 1.04 · high 6.67 · high 27.20 · good poor
Fri 06:00 1.04 · high 6.78 · high 27.20 · good poor
Fri 07:00 1.02 · high 6.82 · high 27.20 · good poor
Fri 08:00 1.00 · high 6.71 · high 27.20 · good poor
Fri 09:00 0.98 · high 6.14 · high 27.20 · good poor
Fri 10:00 0.98 · high 5.74 · high 27.10 · good poor
Fri 11:00 0.96 · high 5.89 · high 27.10 · good poor
Fri 12:00 0.96 · high 5.78 · high 27.10 · good poor
Fri 13:00 0.96 · high 5.49 · high 27.10 · good poor