Wednesday
❌ Poor conditions
Main blocker: Waves
USA · Updated Wed 15:20 (HST) · Source: Snapshot
The skinny
Poor Data updated Wed 15:20 (HST)Anini Beach has no good model window later today. Check the three-day outlook and official beach advisories.
Poor · 0.0/10
Wed 15:00 (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 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: Thu 01:00
Thu 01:00, Thu 13:00, Fri 13:00, Sat 02:00
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
Fri 15:00 – Mon 15:00 (HST)
Best snorkel score is 0.45 around Sat 07:00; 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.
Tap a chart to load just that series.
0/24 sampled hours stay at or below 0.36m (range 1.36m to 1.52m).
Wind is at or below 5.4m/s in 24/24 sampled hours (range 2.55 to 3.82m/s).
Tides range from 0.26m to 0.77m; 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 |
|---|---|---|---|---|
| Fri 15:00 | 1.52 · high | 3.22 · good | 26.80 · good | Poor |
| Fri 16:00 | 1.52 · high | 3.52 · good | 26.80 · good | Poor |
| Fri 17:00 | 1.52 · high | 3.82 · good | 26.70 · good | Poor |
| Fri 18:00 | 1.50 · high | 3.60 · good | 26.70 · good | Poor |
| Fri 19:00 | 1.48 · high | 3.29 · good | 26.70 · good | Poor |
| Fri 20:00 | 1.46 · high | 3.65 · good | 26.60 · good | Poor |
| Fri 21:00 | 1.46 · high | 3.34 · good | 26.60 · good | Poor |
| Fri 22:00 | 1.44 · high | 2.95 · good | 26.50 · good | Poor |
| Fri 23:00 | 1.44 · high | 2.62 · good | 26.40 · good | Poor |
| Sat 00:00 | 1.44 · high | 2.69 · good | 26.30 · good | Poor |
| Sat 01:00 | 1.44 · high | 2.79 · good | 26.20 · good | Poor |
| Sat 02:00 | 1.46 · high | 3.18 · good | 26.00 · good | Poor |
| Sat 03:00 | 1.44 · high | 3.03 · good | 25.90 · good | Poor |
| Sat 04:00 | 1.42 · high | 2.61 · good | 25.80 · good | Poor |
| Sat 05:00 | 1.40 · high | 2.66 · good | 25.80 · good | Poor |
| Sat 06:00 | 1.40 · high | 2.55 · good | 25.70 · good | Poor |
| Sat 07:00 | 1.42 · high | 2.57 · good | 25.70 · good | Fair |
| Sat 08:00 | 1.42 · high | 2.71 · good | 25.70 · good | Fair |
| Sat 09:00 | 1.42 · high | 3.13 · good | 25.80 · good | Fair |
| Sat 10:00 | 1.40 · high | 3.61 · good | 25.90 · good | Fair |
| Sat 11:00 | 1.40 · high | 3.81 · good | 26.00 · good | Fair |
| Sat 12:00 | 1.38 · high | 3.76 · good | 26.20 · good | Fair |
| Sat 13:00 | 1.38 · high | 3.59 · good | 26.30 · good | Fair |
| Sat 14:00 | 1.36 · high | 3.47 · good | 26.40 · good | Poor |
| Sat 15:00 | 1.36 · high | 3.32 · good | 26.50 · good | Poor |
| Sat 16:00 | 1.34 · high | 3.05 · good | 26.50 · good | Poor |
| Sat 17:00 | 1.34 · high | 2.91 · good | 26.60 · good | Poor |
| Sat 18:00 | 1.34 · high | 2.56 · good | 26.60 · good | Poor |
| Sat 19:00 | 1.32 · high | 2.30 · good | 26.70 · good | Poor |
| Sat 20:00 | 1.32 · high | 1.76 · good | 26.70 · good | Poor |
| Sat 21:00 | 1.32 · high | 1.66 · good | 26.70 · good | Poor |
| Sat 22:00 | 1.32 · high | 1.42 · good | 26.70 · good | Poor |
| Sat 23:00 | 1.32 · high | 1.32 · good | 26.60 · good | Poor |
| Sun 00:00 | 1.32 · high | 1.20 · good | 26.60 · good | Poor |
| Sun 01:00 | 1.30 · high | 1.37 · good | 26.60 · good | Poor |
| Sun 02:00 | 1.30 · high | 1.56 · good | 26.50 · good | Poor |
| Sun 03:00 | 1.30 · high | 1.42 · good | 26.50 · good | Poor |
| Sun 04:00 | 1.28 · high | 1.52 · good | 26.40 · good | Poor |
| Sun 05:00 | 1.28 · high | 1.64 · good | 26.40 · good | Poor |
| Sun 06:00 | 1.26 · high | 1.39 · good | 26.40 · good | Poor |
| Sun 07:00 | 1.26 · high | 1.38 · good | 26.40 · good | Fair |
| Sun 08:00 | 1.24 · high | 2.15 · good | 26.40 · good | Fair |
| Sun 09:00 | 1.22 · high | 3.01 · good | 26.40 · good | Fair |
| Sun 10:00 | 1.24 · high | 3.16 · good | 26.40 · good | Fair |
| Sun 11:00 | 1.24 · high | 3.25 · good | 26.50 · good | Fair |
| Sun 12:00 | 1.24 · high | 3.43 · good | 26.50 · good | Fair |
| Sun 13:00 | 1.24 · high | 3.59 · good | 26.50 · good | Fair |
| Sun 14:00 | 1.24 · high | 3.54 · good | 26.50 · good | Poor |
| Sun 15:00 | 1.22 · high | 3.40 · good | 26.50 · good | Poor |
| Sun 16:00 | 1.22 · high | 3.01 · good | 26.50 · good | Poor |
| Sun 17:00 | 1.20 · high | 2.69 · good | 26.50 · good | Poor |
| Sun 18:00 | 1.20 · high | 2.26 · good | 26.40 · good | Poor |
| Sun 19:00 | 1.20 · high | 1.61 · good | 26.40 · good | Poor |
| Sun 20:00 | 1.20 · high | 1.55 · good | 26.40 · good | Poor |
| Sun 21:00 | 1.20 · high | 1.26 · good | 26.40 · good | Poor |
| Sun 22:00 | 1.20 · high | 1.30 · good | 26.30 · good | Poor |
| Sun 23:00 | 1.20 · high | 1.55 · good | 26.30 · good | Poor |
| Mon 00:00 | 1.20 · high | 1.76 · good | 26.30 · good | Poor |
| Mon 01:00 | 1.18 · high | 1.48 · good | 26.30 · good | Poor |
| Mon 02:00 | 1.16 · high | 1.80 · good | 26.30 · good | Poor |
| Mon 03:00 | 1.16 · high | 1.60 · good | 26.30 · good | Poor |
| Mon 04:00 | 1.14 · high | 1.46 · good | 26.30 · good | Poor |
| Mon 05:00 | 1.14 · high | 1.19 · good | 26.30 · good | Poor |
| Mon 06:00 | 1.12 · high | 1.11 · good | 26.30 · good | Poor |
| Mon 07:00 | 1.08 · high | 1.20 · good | 26.30 · good | Fair |
| Mon 08:00 | 1.06 · high | 2.55 · good | 26.30 · good | Fair |
| Mon 09:00 | 1.14 · high | 1.14 · good | 26.30 · good | Fair |
| Mon 10:00 | 1.12 · high | 2.00 · good | 26.30 · good | Fair |
| Mon 11:00 | 1.12 · high | 2.57 · good | 26.40 · good | Fair |
| Mon 12:00 | 1.12 · high | 2.79 · good | 26.50 · good | Fair |
| Mon 13:00 | 1.10 · high | 2.86 · good | 26.50 · good | Fair |
| Mon 14:00 | 1.10 · high | 2.97 · good | 26.50 · good | Poor |