Wednesday
❌ Poor conditions
Main blocker: Waves
USA · Updated Wed 17:42 (HST) · Source: Snapshot
The skinny
Poor Data updated Wed 17:42 (HST)Anini Beach has no good model window later today. Check the three-day outlook and official beach advisories.
Poor · 0.0/10
Wed 18:00 (HST)
No fresh data for this period.
Fair · 4.9/10
Thu 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.
Read the Hawaii snorkeling guide for coast, access and best-month guidance.
AreaNorth Shore
DifficultyEasy
Best timeMorning
ExposureReef-protected north shore; avoid high surf
ShoreLong sandy beach behind barrier reef
No good model window in the next 72 hours
Use the best-available section for the least-bad times.
Wednesday
❌ Poor conditions
Main blocker: Waves
Thursday
⚠️ Fair conditions
Main blocker: Waves
Friday
⚠️ Fair conditions
Main blocker: Waves
Main blockers across the next 72 hours:
Drift estimate from wind, swell, current and warm water.
Low peak drift risk around Wed 21:00.
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.
Next early morning high tide: Thu 01:00
Thu 01:00, Thu 13:00, Fri 13:00, Sat 02:00, Sat 14:00
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 historical data
Mon 18:00 – Thu 18:00 (HST)
Best snorkel score is 0.29 around Tue 13:00; 0 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 2.6m to 2.98m).
Wind is at or below 5.4m/s in 4/24 sampled hours (range 3.21 to 8.81m/s).
Tides range from 0.3m to 0.97m; 2 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 |
|---|---|---|---|---|
| Mon 18:00 | 2.74 · high | 7.01 · high | 25.90 · good | Poor |
| Mon 19:00 | 2.84 · high | 7.18 · high | 25.80 · good | Poor |
| Mon 20:00 | 2.92 · high | 8.41 · high | 25.80 · good | Poor |
| Mon 21:00 | 2.90 · high | 8.36 · high | 25.70 · good | Poor |
| Mon 22:00 | 2.90 · high | 7.64 · high | 25.60 · good | Poor |
| Mon 23:00 | 2.88 · high | 8.49 · high | 25.50 · good | Poor |
| Tue 00:00 | 2.84 · high | 8.53 · high | 25.50 · good | Poor |
| Tue 01:00 | 2.94 · high | 8.80 · high | 26.30 · good | Poor |
| Tue 02:00 | 2.98 · high | 8.81 · high | 26.30 · good | Poor |
| Tue 03:00 | 2.94 · high | 8.15 · high | 26.40 · good | Poor |
| Tue 04:00 | 2.90 · high | 8.79 · high | 26.40 · good | Poor |
| Tue 05:00 | 2.86 · high | 7.79 · high | 26.50 · good | Poor |
| Tue 06:00 | 2.84 · high | 8.38 · high | 26.60 · good | Poor |
| Tue 07:00 | 2.84 · high | 7.97 · high | 26.70 · good | Poor |
| Tue 08:00 | 2.82 · high | 7.47 · high | 26.80 · good | Poor |
| Tue 09:00 | 2.76 · high | 6.82 · high | 26.90 · good | Poor |
| Tue 10:00 | 2.74 · high | 6.57 · high | 27.00 · good | Poor |
| Tue 11:00 | 2.72 · high | 6.95 · high | 27.20 · good | Poor |
| Tue 12:00 | 2.68 · high | 6.37 · high | 27.30 · good | Poor |
| Tue 13:00 | 2.66 · high | 5.79 · high | 27.40 · good | Poor |
| Tue 14:00 | 2.62 · high | 5.36 · good | 27.50 · good | Poor |
| Tue 15:00 | 2.62 · high | 4.33 · good | 27.60 · good | Poor |
| Tue 16:00 | 2.60 · high | 3.99 · good | 27.60 · good | Poor |
| Tue 17:00 | 2.60 · high | 3.21 · good | 27.60 · good | Poor |
| Tue 18:00 | 2.54 · high | 2.73 · good | 27.60 · good | Poor |
| Tue 19:00 | 2.48 · high | 2.64 · good | 27.60 · good | Poor |
| Tue 20:00 | 2.42 · high | 2.02 · good | 27.50 · good | Poor |
| Tue 21:00 | 2.36 · high | 1.87 · good | 27.50 · good | Poor |
| Tue 22:00 | 2.32 · high | 2.09 · good | 27.40 · good | Poor |
| Tue 23:00 | 2.26 · high | 2.61 · good | 27.30 · good | Poor |
| Wed 00:00 | 2.20 · high | 2.77 · good | 27.20 · good | Poor |
| Wed 01:00 | 2.36 · high | 2.39 · good | 27.30 · good | Poor |
| Wed 02:00 | 2.32 · high | 1.79 · good | 27.30 · good | Poor |
| Wed 03:00 | 2.28 · high | 1.60 · good | 27.20 · good | Poor |
| Wed 04:00 | 2.24 · high | 1.53 · good | 27.20 · good | Poor |
| Wed 05:00 | 2.20 · high | 1.41 · good | 27.10 · good | Poor |
| Wed 06:00 | 2.16 · high | 1.38 · good | 27.10 · good | Poor |
| Wed 07:00 | 2.10 · high | 1.28 · good | 27.10 · good | Fair |
| Wed 08:00 | 2.06 · high | 0.70 · good | 27.10 · good | Fair |
| Wed 09:00 | 1.98 · high | 1.42 · good | 27.20 · good | Fair |
| Wed 10:00 | 1.94 · high | 2.45 · good | 27.30 · good | Fair |
| Wed 11:00 | 1.92 · high | 3.05 · good | 27.40 · good | Fair |
| Wed 12:00 | 1.90 · high | 2.94 · good | 27.50 · good | Fair |
| Wed 13:00 | 1.86 · high | 2.24 · good | 27.60 · good | Fair |
| Wed 14:00 | 1.84 · high | 0.80 · good | 27.60 · good | Poor |
| Wed 15:00 | 1.82 · high | 0.81 · good | 27.60 · good | Poor |
| Wed 16:00 | 1.80 · high | 0.47 · good | 27.60 · good | Poor |
| Wed 17:00 | 1.78 · high | 0.53 · good | 27.60 · good | Poor |
| Wed 18:00 | 1.76 · high | 0.80 · good | 27.60 · good | Poor |
| Wed 19:00 | 1.76 · high | 0.82 · good | 27.60 · good | Poor |
| Wed 20:00 | 1.74 · high | 0.96 · good | 27.50 · good | Poor |
| Wed 21:00 | 1.72 · high | 1.03 · good | 27.50 · good | Poor |
| Wed 22:00 | 1.70 · high | 0.81 · good | 27.50 · good | Poor |
| Wed 23:00 | 1.68 · high | 1.27 · good | 27.40 · good | Poor |
| Thu 00:00 | 1.64 · high | 0.95 · good | 27.40 · good | Poor |
| Thu 01:00 | 1.58 · high | 1.57 · good | 27.20 · good | Poor |
| Thu 02:00 | 1.54 · high | 0.67 · good | 27.10 · good | Poor |
| Thu 03:00 | 1.54 · high | 0.97 · good | 27.00 · good | Poor |
| Thu 04:00 | 1.52 · high | 1.50 · good | 27.00 · good | Poor |
| Thu 05:00 | 1.52 · high | 1.70 · good | 26.90 · good | Poor |
| Thu 06:00 | 1.52 · high | 1.28 · good | 26.80 · good | Poor |
| Thu 07:00 | 1.50 · high | 1.13 · good | 26.80 · good | Fair |
| Thu 08:00 | 1.50 · high | 2.86 · good | 26.80 · good | Fair |
| Thu 09:00 | 1.54 · high | 3.33 · good | 26.80 · good | Fair |
| Thu 10:00 | 1.54 · high | 4.05 · good | 26.90 · good | Fair |
| Thu 11:00 | 1.56 · high | 4.21 · good | 27.00 · good | Poor |
| Thu 12:00 | 1.56 · high | 4.46 · good | 27.10 · good | Poor |
| Thu 13:00 | 1.58 · high | 3.62 · good | 27.20 · good | Fair |
| Thu 14:00 | 1.58 · high | 3.88 · good | 27.20 · good | Poor |
| Thu 15:00 | 1.58 · high | 3.54 · good | 27.20 · good | Poor |
| Thu 16:00 | 1.58 · high | 3.60 · good | 27.20 · good | Poor |
| Thu 17:00 | 1.58 · high | 3.86 · good | 27.20 · good | Poor |