Tuesday
⚠️ Fair conditions
Main blocker: Waves
MARINE REPORT / 72 HOURS
USA · Updated Tue 04:50 (HST) · Source: Snapshot
The skinny
Marginal Data updated Tue 04:50 (HST)Tunnels Beach looks marginal today. The least-bad daylight window is around Tue 10:00, but waves is limiting the forecast.
Fair · 3.6/10
Tue 07:00 (HST)
Fair · 3.6/10
Tue 10:00 (HST)
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.
Best nearby spots later today
Weakest nearby later today
Read the Hawaii snorkeling guide for coast, access and best-month guidance.
AreaNorth Shore
DifficultyModerate
Best timeSummer mornings
ExposureNorth shore; avoid winter surf
ShoreOuter reef and sandy beach
No good model window in the next 72 hours
Use the best-available section for the least-bad times.
Tuesday
⚠️ Fair conditions
Main blocker: Waves
Wednesday
❌ Poor conditions
Main blocker: Waves
Thursday
⚠️ Fair conditions
Main blocker: Waves
Main blockers across the next 72 hours:
Drift estimate from wind, swell, current and warm water.
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.
Next early morning high tide: Wed 04:00
Wed 04:00, Thu 05:00
Compare nearby spot forecasts for later today before choosing a beach.
Use the map to see where the compared spots sit. Open a card for the hourly forecast.
This is a location diagram, not a marine chart. Check the shore and local signs in person.
Viewing current forecast
Tue 07:00 – Fri 07:00 (HST)
Best snorkel score is 0.36 around Tue 10:00; 2 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.
Tap a chart to load just that series.
0/24 sampled hours stay at or below 0.36m (range 2.02m to 2.66m).
Wind is at or below 5.4m/s in 2/24 sampled hours (range 5.2 to 7.27m/s).
Tides range from 0.23m to 0.88m; 1 of 24 hours are in or near peak slack windows.
We score each hour from 0 to 1 using daylight and these weighted components:
| Time | Wave (m) | Wind (m/s) | Sea temp (°C) | Status |
|---|---|---|---|---|
| Tue 08:00 | 2.16 · high | 5.41 · high | 26.00 · good | Poor |
| Tue 09:00 | 2.18 · high | 5.42 · high | 26.00 · good | Poor |
| Tue 10:00 | 2.18 · high | 5.91 · high | 26.00 · good | Fair |
| Tue 11:00 | 2.20 · high | 6.09 · high | 26.10 · good | Fair |
| Tue 12:00 | 2.16 · high | 5.88 · high | 26.10 · good | Poor |
| Tue 13:00 | 2.10 · high | 5.48 · high | 26.10 · good | Poor |
| Tue 14:00 | 2.06 · high | 5.20 · good | 26.10 · good | Poor |
| Tue 15:00 | 2.04 · high | 5.25 · good | 26.10 · good | Poor |
| Tue 16:00 | 2.04 · high | 5.49 · high | 26.10 · good | Poor |
| Tue 17:00 | 2.02 · high | 5.68 · high | 26.00 · good | Poor |
| Tue 18:00 | 2.04 · high | 5.92 · high | 26.00 · good | Poor |
| Tue 19:00 | 2.08 · high | 6.30 · high | 26.00 · good | Poor |
| Tue 20:00 | 2.10 · high | 6.39 · high | 26.00 · good | Poor |
| Tue 21:00 | 2.12 · high | 6.59 · high | 26.00 · good | Poor |
| Tue 22:00 | 2.16 · high | 6.74 · high | 25.90 · good | Poor |
| Tue 23:00 | 2.18 · high | 6.88 · high | 25.90 · good | Poor |
| Wed 00:00 | 2.20 · high | 6.83 · high | 25.90 · good | Poor |
| Wed 01:00 | 2.20 · high | 6.63 · high | 25.90 · good | Poor |
| Wed 02:00 | 2.22 · high | 6.59 · high | 25.90 · good | Poor |
| Wed 03:00 | 2.30 · high | 6.77 · high | 25.90 · good | Poor |
| Wed 04:00 | 2.36 · high | 6.80 · high | 25.80 · good | Poor |
| Wed 05:00 | 2.44 · high | 6.89 · high | 25.80 · good | Poor |
| Wed 06:00 | 2.54 · high | 6.89 · high | 25.80 · good | Poor |
| Wed 07:00 | 2.66 · high | 7.27 · high | 25.80 · good | Poor |
| Wed 08:00 | 2.76 · high | 7.49 · high | 25.80 · good | Poor |
| Wed 09:00 | 2.86 · high | 7.46 · high | 25.80 · good | Poor |
| Wed 10:00 | 2.96 · high | 7.44 · high | 25.80 · good | Poor |
| Wed 11:00 | 3.06 · high | 7.59 · high | 25.80 · good | Poor |
| Wed 12:00 | 3.16 · high | 7.58 · high | 25.80 · good | Poor |
| Wed 13:00 | 3.24 · high | 7.27 · high | 25.80 · good | Poor |
| Wed 14:00 | 3.34 · high | 7.24 · high | 25.80 · good | Poor |
| Wed 15:00 | 3.40 · high | 6.96 · high | 25.80 · good | Poor |
| Wed 16:00 | 3.44 · high | 6.91 · high | 25.80 · good | Poor |
| Wed 17:00 | 3.50 · high | 6.56 · high | 25.80 · good | Poor |
| Wed 18:00 | 3.52 · high | 6.84 · high | 25.80 · good | Poor |
| Wed 19:00 | 3.52 · high | 7.12 · high | 25.80 · good | Poor |
| Wed 20:00 | 3.54 · high | 6.93 · high | 25.80 · good | Poor |
| Wed 21:00 | 3.52 · high | 6.45 · high | 25.80 · good | Poor |
| Wed 22:00 | 3.52 · high | 6.20 · high | 25.80 · good | Poor |
| Wed 23:00 | 3.50 · high | 6.05 · high | 25.70 · good | Poor |
| Thu 00:00 | 3.50 · high | 5.60 · high | 25.70 · good | Poor |
| Thu 01:00 | 3.52 · high | 5.35 · good | 25.70 · good | Poor |
| Thu 02:00 | 3.52 · high | 5.25 · good | 25.70 · good | Poor |
| Thu 03:00 | 3.52 · high | 5.11 · good | 25.70 · good | Poor |
| Thu 04:00 | 3.54 · high | 5.82 · high | 25.70 · good | Poor |
| Thu 05:00 | 3.54 · high | 6.21 · high | 25.70 · good | Poor |
| Thu 06:00 | 3.52 · high | 6.03 · high | 25.80 · good | Poor |
| Thu 07:00 | 3.52 · high | 6.74 · high | 25.80 · good | Poor |
| Thu 08:00 | 3.50 · high | 6.86 · high | 25.80 · good | Poor |
| Thu 09:00 | 3.44 · high | 6.79 · high | 25.80 · good | Poor |
| Thu 10:00 | 3.40 · high | 6.68 · high | 25.80 · good | Poor |
| Thu 11:00 | 3.34 · high | 6.88 · high | 25.80 · good | Poor |
| Thu 12:00 | 3.28 · high | 7.00 · high | 25.80 · good | Fair |
| Thu 13:00 | 3.24 · high | 7.14 · high | 25.80 · good | Poor |
| Thu 14:00 | 3.18 · high | 6.86 · high | 25.80 · good | Poor |
| Thu 15:00 | 3.16 · high | 6.67 · high | 25.80 · good | Poor |
| Thu 16:00 | 3.12 · high | 6.43 · high | 25.80 · good | Poor |
| Thu 17:00 | 3.10 · high | 6.54 · high | 25.80 · good | Poor |
| Thu 18:00 | 3.08 · high | 6.26 · high | 25.80 · good | Poor |
| Thu 19:00 | 3.04 · high | 6.07 · high | 25.80 · good | Poor |
| Thu 20:00 | 3.02 · high | 6.03 · high | 25.80 · good | Poor |
| Thu 21:00 | 2.98 · high | 6.03 · high | 25.80 · good | Poor |
| Thu 22:00 | 2.94 · high | 5.60 · high | 25.80 · good | Poor |
| Thu 23:00 | 2.90 · high | 5.61 · high | 25.80 · good | Poor |
| Fri 00:00 | 2.84 · high | 5.72 · high | 25.80 · good | Poor |
| Fri 01:00 | 2.80 · high | 6.01 · high | 25.70 · good | Poor |
| Fri 02:00 | 2.74 · high | 5.82 · high | 25.70 · good | Poor |
| Fri 03:00 | 2.72 · high | 5.57 · high | 25.70 · good | Poor |