Napili Bay Snorkel Report Today

USA · Updated Wed 20:40 (HST) · Source: Snapshot

The skinny

Poor Data updated Wed 20:40 (HST)

Napili Bay has no good model window later today. Check the three-day outlook and official beach advisories.

Right now (forecast)

Poor · 0.0/10

Wed 20:00 (HST)

Later today

No fresh data for this period.

Next three days

Poor · 2.6/10

Fri 13:00 (HST)

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

Score: 0.0/10

Best time: -

Main risk: Waves

No useful morning window is showing yet.

No useful afternoon window is showing yet.

Email me when it is good Compare nearby spots

Read the Maui snorkeling guide for coast, access and best-month guidance.

Plan your visit

These notes help with planning. Rules and closures can change.

Open map

AccessNapili is a sandy crescent with reef at the edges. It is easiest when the bay is calm and visibility is good.

ParkingParking is limited near the residential bay. Use marked spaces, arrive early, and keep driveways clear.

ReservationsNo general shore-snorkel reservation is listed. Check signs for access, equipment, and beach rules.

ClosuresChoose another beach when waves break across the bay or a local warning is posted.

Marine lifeFish and turtles use the reef edges. Float above the reef and do not touch animals or coral.

Hawaii beach safety guidance

Sunrise

06:15

Sunset

18:20

Water

27.7°C

Max air

26.1°C

Sky

Cloudy

98% 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

Wednesday

❌ Poor conditions

Main blocker: Waves

Thursday

❌ Poor conditions

Main blocker: Waves

Friday

❌ Poor conditions

Main blocker: Waves

Best available hours

  • Fri 13:00: Poor (0.26) · still limited by waves, wind
  • Thu 07:00: Poor (0.21) · still limited by waves, wind
  • Thu 08:00: Poor (0.21) · still limited by waves, wind

Why this verdict

Main blockers across the next 72 hours:

  • Waves (71 hours)
  • Wind (71 hours)
  • Tide/current (70 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

Next early morning high tide: Thu 01:00

Thu 01:00, Fri 02:00, Fri 14:00, Sat 14:00

Nearby snorkel spot map

Compare nearby spot forecasts for later today before choosing a beach.

Ahihi Kinau Unknown No recent score Honolua Bay Unknown No recent score Kaanapali Beach Unknown No recent score Kaanapali Black Rock Unknown No recent score Kapalua Bay Unknown No recent score Maluaka Turtle Town Unknown No recent score Molokini Crater Unknown No recent score Ulua Mokapu Unknown No recent score

Forecast spot map

Use the map to see where the compared spots sit. Open a card for the hourly forecast.

Ahihi Kinau Honolua Bay Kaanapali Beach Kaanapali Black Rock Kapalua Bay Maluaka Turtle Town Molokini Crater Ulua Mokapu
  1. Ahihi Kinau
  2. Honolua Bay
  3. Kaanapali Beach
  4. Kaanapali Black Rock
  5. Kapalua Bay
  6. Maluaka Turtle Town
  7. Molokini Crater
  8. Ulua Mokapu

This is a location diagram, not a marine chart. Check the shore and local signs in person.

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 20:00 – Fri 20:00 (HST)

Previous day Yesterday Next day Live

Snorkel Score (selected 24h)

Best snorkel score is 0.47 around Wed 07:00; 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 1.04m to 1.4m).

Wind is at or below 5.4m/s in 24/24 sampled hours (range 0.07 to 3.97m/s).

Tides range from 0.19m to 0.94m; 2 of 24 hours are in or near peak slack windows.

72-hour historical overview
Poor ❌ Limited
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Fair ⚠️ Fair
Fair ⚠️ Fair
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Poor ❌ Limited
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Fair ⚠️ Fair
Poor ❌ Limited
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Fair ⚠️ Fair
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Poor ❌ Limited
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Fair ⚠️ Fair
Fair ⚠️ Fair
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Fair ⚠️ Fair
Fair ⚠️ Fair
Poor ❌ Limited
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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 is better in daylight, so night hours score lower.
Detailed hourly data table
Time Wave (m) Wind (m/s) Sea temp (°C) Status
Tue 20:00 1.40 · high 0.15 · good 28.10 · good Poor
Tue 21:00 1.38 · high 0.36 · good 28.10 · good Poor
Tue 22:00 1.34 · high 0.16 · good 28.10 · good Poor
Tue 23:00 1.32 · high 0.07 · good 28.00 · good Poor
Wed 00:00 1.30 · high 0.11 · good 28.00 · good Poor
Wed 01:00 1.28 · high 0.67 · good 27.90 · good Poor
Wed 02:00 1.24 · high 1.24 · good 27.90 · good Poor
Wed 03:00 1.22 · high 0.64 · good 27.80 · good Poor
Wed 04:00 1.18 · high 0.30 · good 27.80 · good Poor
Wed 05:00 1.16 · high 0.51 · good 27.80 · good Poor
Wed 06:00 1.14 · high 0.59 · good 27.70 · good Poor
Wed 07:00 1.14 · high 1.52 · good 27.70 · good Fair
Wed 08:00 1.12 · high 2.00 · good 27.70 · good Fair
Wed 09:00 1.12 · high 1.35 · good 27.70 · good Fair
Wed 10:00 1.06 · high 1.42 · good 27.80 · good Fair
Wed 11:00 1.04 · high 1.88 · good 27.80 · good Fair
Wed 12:00 1.04 · high 2.42 · good 27.90 · good Fair
Wed 13:00 1.04 · high 3.75 · good 27.90 · good Poor
Wed 14:00 1.04 · high 2.97 · good 28.00 · good Poor
Wed 15:00 1.04 · high 3.46 · good 28.00 · good Poor
Wed 16:00 1.06 · high 3.48 · good 28.00 · good Poor
Wed 17:00 1.06 · high 3.97 · good 28.00 · good Poor
Wed 18:00 1.04 · high 3.63 · good 27.90 · good Poor
Wed 19:00 1.04 · high 3.46 · good 27.90 · good Poor
Wed 20:00 1.02 · high 3.05 · good 27.90 · good Poor
Wed 21:00 1.00 · high 2.10 · good 27.90 · good Poor
Wed 22:00 1.00 · high 1.40 · good 27.90 · good Poor
Wed 23:00 0.98 · high 1.00 · good 27.90 · good Poor
Thu 00:00 0.96 · high 1.16 · good 27.90 · good Poor
Thu 01:00 0.92 · high 1.22 · good 27.70 · good Poor
Thu 02:00 0.90 · high 1.10 · good 27.70 · good Poor
Thu 03:00 0.90 · high 1.47 · good 27.70 · good Poor
Thu 04:00 0.88 · high 1.79 · good 27.70 · good Poor
Thu 05:00 0.88 · high 1.99 · good 27.70 · good Poor
Thu 06:00 0.88 · high 2.83 · good 27.70 · good Poor
Thu 07:00 0.86 · high 3.28 · good 27.70 · good Fair
Thu 08:00 0.86 · high 5.45 · high 27.70 · good Poor
Thu 09:00 0.88 · high 5.36 · good 27.70 · good Poor
Thu 10:00 1.04 · high 5.46 · high 27.80 · good Poor
Thu 11:00 1.06 · high 5.92 · high 27.80 · good Poor
Thu 12:00 1.06 · high 5.78 · high 27.80 · good Fair
Thu 13:00 1.06 · high 5.50 · high 27.90 · good Fair
Thu 14:00 1.06 · high 5.33 · good 27.90 · good Poor
Thu 15:00 1.04 · high 4.86 · good 27.90 · good Poor
Thu 16:00 1.02 · high 4.76 · good 27.80 · good Poor
Thu 17:00 1.00 · high 4.70 · good 27.80 · good Poor
Thu 18:00 0.98 · high 4.40 · good 27.80 · good Poor
Thu 19:00 0.96 · high 4.64 · good 27.80 · good Poor
Thu 20:00 0.94 · high 4.47 · good 27.70 · good Poor
Thu 21:00 0.94 · high 4.20 · good 27.70 · good Poor
Thu 22:00 0.94 · high 4.45 · good 27.70 · good Poor
Thu 23:00 0.94 · high 4.44 · good 27.60 · good Poor
Fri 00:00 0.92 · high 4.72 · good 27.60 · good Poor
Fri 01:00 0.94 · high 4.89 · good 27.60 · good Poor
Fri 02:00 0.94 · high 3.39 · good 27.60 · good Poor
Fri 03:00 0.94 · high 3.59 · good 27.60 · good Poor
Fri 04:00 0.92 · high 3.91 · good 27.50 · good Poor
Fri 05:00 0.92 · high 4.22 · good 27.50 · good Poor
Fri 06:00 0.92 · high 4.07 · good 27.50 · good Poor
Fri 07:00 0.90 · high 4.07 · good 27.50 · good Poor
Fri 08:00 0.90 · high 4.14 · good 27.50 · good Fair
Fri 09:00 0.90 · high 4.53 · good 27.50 · good Fair
Fri 10:00 0.92 · high 4.15 · good 27.50 · good Fair
Fri 11:00 0.92 · high 4.39 · good 27.60 · good Fair
Fri 12:00 0.92 · high 4.86 · good 27.60 · good Fair
Fri 13:00 0.94 · high 4.87 · good 27.70 · good Fair
Fri 14:00 0.94 · high 4.81 · good 27.70 · good Poor
Fri 15:00 0.92 · high 5.33 · good 27.70 · good Poor
Fri 16:00 0.92 · high 4.94 · good 27.70 · good Poor
Fri 17:00 0.90 · high 4.57 · good 27.60 · good Poor
Fri 18:00 0.88 · high 4.41 · good 27.60 · good Poor
Fri 19:00 0.86 · high 4.43 · good 27.60 · good Poor