MARINE REPORT / 72 HOURS

Sharks Cove Snorkel Report Today

USA · Updated Wed 06:30 (HST) · Source: Snapshot

The skinny

Marginal Data updated Wed 06:30 (HST)

Sharks Cove looks marginal today. The least-bad daylight window is around Wed 08:00, but waves is limiting the forecast.

Right now (forecast)

Poor · 3.3/10

Wed 07:00 (HST)

Later today

Poor · 3.3/10

Wed 08:00 (HST)

Next three days

Fair · 3.6/10

Thu 07:00 (HST)

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

Score: 3.3/10

Best time: Wed 08:00

Main risk: Waves

Best morning signal: Wed 08:00 (Poor).

Best afternoon signal: Wed 13:00 (Poor). Peak afternoon wind is about 8.0 m/s.

Email me when it is good Compare nearby spots

Best nearby spots later today

Electric Beach 4.4/10 Fair · Wed 08:00 Kahe Point 4.4/10 Fair · Wed 08:00 Hanauma Bay 3.3/10 Poor · Wed 11:00

Weakest nearby later today

Hanauma Bay Lanikai Beach

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

Local beach intelligence

AreaNorth Shore

DifficultyModerate

Best timeSummer mornings

ExposureNorth Shore; unsafe during winter surf

ShoreLava-rock tide pools and cove

Plan your visit

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

Open map

AccessShore entry is over lava rock and the cove changes quickly with swell. Treat winter North Shore surf as a no-entry signal.

ParkingParking fills quickly on the North Shore. Use legal spaces and keep emergency access clear.

ReservationsNo general snorkel reservation is listed. Check posted rules and current surf notices.

ClosuresDo not enter during large surf, strong surge, or a posted closure. Summer conditions are usually the more practical window.

Marine lifeSharks Cove sits in the Pupukea Marine Life Conservation District. Do not take fish, coral, rocks, or shells.

Hawaiʻi marine rules and notices

Sunrise

06:41

Sunset

17:51

Water

25.7°C

Max air

27.3°C

Sky

Clear

13% 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

⚠️ Fair conditions

Main blocker: Waves

Friday

⚠️ Fair conditions

Main blocker: Waves

Best available hours

  • Thu 07:00: Fair (0.36) · still limited by waves, wind
  • Fri 10:00: Fair (0.35) · still limited by waves, wind
  • Fri 09:00: Fair (0.35) · still limited by waves, wind

Why this verdict

Main blockers across the next 72 hours:

  • Waves (70 hours)
  • Tide/current (68 hours)
  • Wind (57 hours)

Jellyfish drift risk

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

Low · 34/100

Low peak drift risk around Wed 15:00.

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 04:00

Thu 04:00, Fri 05:00

Nearby snorkel spot map

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

Electric Beach Fair · Wed 08:00 4.4/10 Kahe Point Fair · Wed 08:00 4.4/10 Hanauma Bay Poor · Wed 11:00 3.3/10 Lanikai Beach Poor · Wed 11:00 3.3/10

Nearby alternatives in USA

Oahu

24 km away

⚠️ Fair

Electric Beach

33 km away

⚠️ Fair

Kahe Point

33 km away

⚠️ Fair

Lanikai Beach

46 km away

❌ Poor

Forecast spot map

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

Electric Beach Kahe Point Hanauma Bay Lanikai Beach
  1. Electric Beach
  2. Kahe Point
  3. Hanauma Bay
  4. Lanikai Beach

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

Advanced forecast data

Viewing historical data

Mon 07:00 – Thu 07:00 (HST)

Previous day Yesterday Next day Live

Snorkel Score (selected 24h)

Best snorkel score is 0.51 around Mon 13:00; 7 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 1.3m to 1.7m).

Wind is at or below 5.4m/s in 24/24 sampled hours (range 1.89 to 4.91m/s).

Tides range from 0.29m to 0.87m; 2 of 24 hours are in or near peak slack windows.

72-hour historical overview
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
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Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
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
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Poor ❌ Limited
Poor ❌ Limited
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
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Poor ❌ Limited
Poor ❌ Limited
Poor ❌ Limited
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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
Mon 07:00 1.30 · high 1.89 · good 27.30 · good Fair
Mon 08:00 1.32 · high 2.36 · good 27.30 · good Fair
Mon 09:00 1.34 · high 3.19 · good 27.40 · good Fair
Mon 10:00 1.34 · high 3.24 · good 27.40 · good Fair
Mon 11:00 1.36 · high 3.43 · good 27.50 · good Fair
Mon 12:00 1.38 · high 3.64 · good 27.50 · good Fair
Mon 13:00 1.40 · high 4.14 · good 27.60 · good Fair
Mon 14:00 1.42 · high 4.91 · good 27.60 · good Poor
Mon 15:00 1.44 · high 4.71 · good 27.60 · good Poor
Mon 16:00 1.44 · high 4.25 · good 27.60 · good Poor
Mon 17:00 1.46 · high 3.83 · good 27.50 · good Poor
Mon 18:00 1.48 · high 3.58 · good 27.50 · good Poor
Mon 19:00 1.48 · high 3.15 · good 27.50 · good Poor
Mon 20:00 1.50 · high 3.01 · good 27.40 · good Poor
Mon 21:00 1.52 · high 2.70 · good 27.40 · good Poor
Mon 22:00 1.54 · high 2.66 · good 27.40 · good Poor
Mon 23:00 1.56 · high 2.10 · good 27.40 · good Poor
Tue 00:00 1.58 · high 2.61 · good 27.40 · good Poor
Tue 01:00 1.58 · high 2.97 · good 27.30 · good Poor
Tue 02:00 1.60 · high 3.10 · good 27.30 · good Poor
Tue 03:00 1.62 · high 3.25 · good 27.30 · good Poor
Tue 04:00 1.66 · high 2.86 · good 27.30 · good Poor
Tue 05:00 1.68 · high 2.87 · good 27.30 · good Poor
Tue 06:00 1.70 · high 2.92 · good 27.30 · good Poor
Tue 07:00 1.80 · high 3.88 · good 27.30 · good Fair
Tue 08:00 1.84 · high 4.72 · good 27.30 · good Fair
Tue 09:00 1.86 · high 5.07 · good 27.30 · good Fair
Tue 10:00 1.88 · high 4.87 · good 27.30 · good Fair
Tue 11:00 1.90 · high 4.86 · good 27.40 · good Fair
Tue 12:00 1.88 · high 4.60 · good 27.40 · good Fair
Tue 13:00 1.86 · high 4.47 · good 27.50 · good Fair
Tue 14:00 1.84 · high 4.80 · good 27.50 · good Poor
Tue 15:00 1.82 · high 4.70 · good 27.50 · good Poor
Tue 16:00 1.78 · high 4.50 · good 27.50 · good Poor
Tue 17:00 1.76 · high 4.20 · good 27.40 · good Poor
Tue 18:00 1.74 · high 3.75 · good 27.40 · good Poor
Tue 19:00 1.70 · high 3.45 · good 27.40 · good Poor
Tue 20:00 1.68 · high 2.96 · good 27.40 · good Poor
Tue 21:00 1.66 · high 3.06 · good 27.40 · good Poor
Tue 22:00 1.66 · high 3.13 · good 27.40 · good Poor
Tue 23:00 1.64 · high 3.18 · good 27.30 · good Poor
Wed 00:00 1.64 · high 3.14 · good 27.30 · good Poor
Wed 01:00 1.68 · high 2.87 · good 27.30 · good Poor
Wed 02:00 1.68 · high 3.04 · good 27.30 · good Poor
Wed 03:00 1.68 · high 2.90 · good 27.30 · good Poor
Wed 04:00 1.66 · high 2.85 · good 27.30 · good Poor
Wed 05:00 1.64 · high 2.45 · good 27.30 · good Poor
Wed 06:00 1.64 · high 3.00 · good 27.30 · good Poor
Wed 07:00 1.64 · high 3.35 · good 27.30 · good Fair
Wed 08:00 1.64 · high 3.75 · good 27.30 · good Fair
Wed 09:00 1.64 · high 4.13 · good 27.30 · good Fair
Wed 10:00 1.64 · high 4.19 · good 27.30 · good Fair
Wed 11:00 1.64 · high 4.40 · good 27.40 · good Fair
Wed 12:00 1.64 · high 4.46 · good 27.40 · good Fair
Wed 13:00 1.64 · high 4.55 · good 27.40 · good Fair
Wed 14:00 1.64 · high 4.49 · good 27.40 · good Poor
Wed 15:00 1.64 · high 4.30 · good 27.40 · good Poor
Wed 16:00 1.64 · high 4.25 · good 27.40 · good Poor
Wed 17:00 1.64 · high 3.92 · good 27.40 · good Poor
Wed 18:00 1.64 · high 3.89 · good 27.40 · good Poor
Wed 19:00 1.62 · high 3.42 · good 27.30 · good Poor
Wed 20:00 1.62 · high 4.15 · good 27.30 · good Poor
Wed 21:00 1.62 · high 3.94 · good 27.30 · good Poor
Wed 22:00 1.60 · high 3.80 · good 27.30 · good Poor
Wed 23:00 1.60 · high 3.54 · good 27.30 · good Poor
Thu 00:00 1.60 · high 3.37 · good 27.30 · good Poor
Thu 01:00 1.58 · high 3.24 · good 27.30 · good Poor
Thu 02:00 1.56 · high 3.93 · good 27.30 · good Poor
Thu 03:00 1.56 · high 3.72 · good 27.30 · good Poor
Thu 04:00 1.54 · high 3.67 · good 27.20 · good Poor
Thu 05:00 1.54 · high 3.83 · good 27.20 · good Poor
Thu 06:00 1.54 · high 3.80 · good 27.20 · good Poor