MARINE REPORT / 72 HOURS

Tunnels Beach Snorkel Report Today

USA · Updated Tue 07:56 (HST) · Source: Snapshot

The skinny

Marginal Data updated Tue 07:56 (HST)

Tunnels Beach looks marginal today. The least-bad daylight window is around Tue 10:00, but waves is limiting the forecast.

Right now (forecast)

Poor · 3.5/10

Tue 08:00 (HST)

Later today

Fair · 3.6/10

Tue 10:00 (HST)

Next three days

Fair · 3.7/10

Thu 12:00 (HST)

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

Score: 3.6/10

Best time: Tue 10:00

Main risk: Waves

Best morning signal: Tue 10:00 (Fair).

Best afternoon signal: Tue 12:00 (Poor). Peak afternoon wind is about 5.9 m/s.

Email me when it is good Compare nearby spots

Best nearby spots later today

Anini Beach 4.9/10 Fair · Tue 09:00 Lydgate Beach 3.2/10 Poor · Tue 11:00 Poipu Beach 3.1/10 Poor · Tue 09:00

Weakest nearby later today

Lydgate Beach Poipu Beach

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

Local beach intelligence

AreaNorth Shore

DifficultyModerate

Best timeSummer mornings

ExposureNorth shore; avoid winter surf

ShoreOuter reef and sandy beach

Sunrise

06:47

Sunset

17:56

Water

26.0°C

Max air

26.6°C

Sky

Partly cloudy

52% 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

Tuesday

⚠️ Fair conditions

Main blocker: Waves

Wednesday

❌ Poor conditions

Main blocker: Waves

Thursday

⚠️ Fair conditions

Main blocker: Waves

Best available hours

  • Thu 12:00: Fair (0.37) · still limited by waves, wind
  • Tue 10:00: Fair (0.36) · still limited by waves, wind
  • Tue 11:00: Fair (0.36) · still limited by waves, wind

Why this verdict

Main blockers across the next 72 hours:

  • Waves (70 hours)
  • Tide/current (69 hours)
  • Wind (65 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: Wed 04:00

Wed 04:00, Thu 05:00

Nearby snorkel spot map

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

Anini Beach Fair · Tue 09:00 4.9/10 Lydgate Beach Poor · Tue 11:00 3.2/10 Poipu Beach Poor · Tue 09:00 3.1/10

Forecast spot map

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

Anini Beach Lydgate Beach Poipu Beach
  1. Anini Beach
  2. Lydgate Beach
  3. Poipu Beach

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

Nearby alternatives in USA

Anini Beach

11 km away

⚠️ Fair

Kauai

15 km away

⚠️ Fair

Lydgate Beach

31 km away

⚠️ Fair

Poipu Beach

40 km away

❌ Poor

Advanced forecast data

Viewing historical data

Mon 08:00 – Thu 08:00 (HST)

Previous day Yesterday Next day Live

Snorkel Score (selected 24h)

Best snorkel score is 0.41 around Mon 11:00; 4 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 2.08m to 2.34m).

Wind is at or below 5.4m/s in 22/24 sampled hours (range 4.12 to 5.5m/s).

Tides range from 0.27m to 0.91m; 1 of 24 hours are in or near peak slack windows.

72-hour historical overview
Poor ❌ Limited
Fair ⚠️ Fair
Poor ❌ Limited
Fair ⚠️ Fair
Fair ⚠️ Fair
Fair ⚠️ Fair
Poor ❌ Limited
Poor ❌ Limited
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Fair ⚠️ Fair
Fair ⚠️ Fair
Fair ⚠️ Fair
Fair ⚠️ Fair
Fair ⚠️ Fair
Poor ❌ Limited
Poor ❌ Limited
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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
Mon 08:00 2.34 · high 5.50 · high 26.10 · good Poor
Mon 09:00 2.34 · high 5.41 · high 26.10 · good Fair
Mon 10:00 2.34 · high 5.20 · good 26.10 · good Poor
Mon 11:00 2.34 · high 5.00 · good 26.20 · good Fair
Mon 12:00 2.34 · high 4.85 · good 26.20 · good Fair
Mon 13:00 2.30 · high 4.84 · good 26.20 · good Fair
Mon 14:00 2.30 · high 5.09 · good 26.20 · good Poor
Mon 15:00 2.30 · high 5.00 · good 26.20 · good Poor
Mon 16:00 2.28 · high 4.95 · good 26.20 · good Poor
Mon 17:00 2.28 · high 4.83 · good 26.20 · good Poor
Mon 18:00 2.28 · high 5.32 · good 26.20 · good Poor
Mon 19:00 2.26 · high 4.66 · good 26.20 · good Poor
Mon 20:00 2.26 · high 4.78 · good 26.20 · good Poor
Mon 21:00 2.24 · high 4.64 · good 26.20 · good Poor
Mon 22:00 2.24 · high 4.51 · good 26.20 · good Poor
Mon 23:00 2.22 · high 4.36 · good 26.20 · good Poor
Tue 00:00 2.20 · high 4.61 · good 26.10 · good Poor
Tue 01:00 2.12 · high 4.48 · good 26.10 · good Poor
Tue 02:00 2.12 · high 4.23 · good 26.10 · good Poor
Tue 03:00 2.10 · high 4.12 · good 26.10 · good Poor
Tue 04:00 2.10 · high 4.40 · good 26.10 · good Poor
Tue 05:00 2.08 · high 4.67 · good 26.10 · good Poor
Tue 06:00 2.10 · high 4.58 · good 26.10 · good Poor
Tue 07:00 2.10 · high 4.47 · good 26.10 · good Poor
Tue 08:00 2.12 · high 4.79 · good 26.10 · good Fair
Tue 09:00 2.10 · high 4.66 · good 26.10 · good Fair
Tue 10:00 2.10 · high 4.66 · good 26.10 · good Fair
Tue 11:00 2.04 · high 5.18 · good 26.10 · good Fair
Tue 12:00 2.02 · high 5.19 · good 26.20 · good Fair
Tue 13:00 2.02 · high 5.17 · good 26.20 · good Poor
Tue 14:00 2.00 · high 5.35 · good 26.20 · good Poor
Tue 15:00 2.00 · high 5.46 · high 26.20 · good Poor
Tue 16:00 2.00 · high 5.14 · good 26.20 · good Poor
Tue 17:00 2.00 · high 5.14 · good 26.10 · good Poor
Tue 18:00 2.02 · high 5.23 · good 26.10 · good Poor
Tue 19:00 2.02 · high 5.60 · high 26.10 · good Poor
Tue 20:00 2.04 · high 5.77 · high 26.10 · good Poor
Tue 21:00 2.06 · high 6.15 · high 26.10 · good Poor
Tue 22:00 2.06 · high 6.15 · high 26.00 · good Poor
Tue 23:00 2.16 · high 6.29 · high 26.00 · good Poor
Wed 00:00 2.20 · high 6.66 · high 26.00 · good Poor
Wed 01:00 2.26 · high 6.61 · high 25.90 · good Poor
Wed 02:00 2.30 · high 6.32 · high 25.90 · good Poor
Wed 03:00 2.38 · high 6.18 · high 25.90 · good Poor
Wed 04:00 2.46 · high 6.37 · high 25.90 · good Poor
Wed 05:00 2.54 · high 6.28 · high 25.90 · good Poor
Wed 06:00 2.66 · high 5.98 · high 25.80 · good Poor
Wed 07:00 2.76 · high 6.03 · high 25.80 · good Poor
Wed 08:00 2.88 · high 6.44 · high 25.80 · good Poor
Wed 09:00 2.98 · high 6.25 · high 25.80 · good Poor
Wed 10:00 3.10 · high 6.51 · high 25.80 · good Poor
Wed 11:00 3.20 · high 6.91 · high 25.90 · good Fair
Wed 12:00 3.32 · high 6.54 · high 25.90 · good Poor
Wed 13:00 3.40 · high 6.61 · high 25.90 · good Poor
Wed 14:00 3.50 · high 6.34 · high 25.90 · good Poor
Wed 15:00 3.52 · high 6.37 · high 25.90 · good Poor
Wed 16:00 3.56 · high 6.60 · high 25.90 · good Poor
Wed 17:00 3.58 · high 6.45 · high 25.80 · good Poor
Wed 18:00 3.58 · high 6.85 · high 25.80 · good Poor
Wed 19:00 3.58 · high 6.65 · high 25.80 · good Poor
Wed 20:00 3.58 · high 6.73 · high 25.80 · good Poor
Wed 21:00 3.58 · high 6.72 · high 25.80 · good Poor
Wed 22:00 3.60 · high 6.38 · high 25.70 · good Poor
Wed 23:00 3.60 · high 6.25 · high 25.70 · good Poor
Thu 00:00 3.60 · high 5.87 · high 25.70 · good Poor
Thu 01:00 3.60 · high 5.94 · high 25.70 · good Poor
Thu 02:00 3.60 · high 5.84 · high 25.70 · good Poor
Thu 03:00 3.60 · high 5.74 · high 25.70 · good Poor
Thu 04:00 3.62 · high 6.00 · high 25.70 · good Poor
Thu 05:00 3.62 · high 5.97 · high 25.70 · good Poor
Thu 06:00 3.58 · high 5.90 · high 25.70 · good Poor
Thu 07:00 3.54 · high 6.12 · high 25.70 · good Poor