Thursday
⚠️ Fair conditions
Main blocker: Waves
USA · Updated Thu 01:43 (HST) · Source: Snapshot
The skinny
Marginal Data updated Thu 01:43 (HST)Anini Beach looks marginal today. The least-bad daylight window is around Thu 13:00, but waves is limiting the forecast.
Poor · 0.0/10
Thu 02:00 (HST)
Fair · 4.4/10
Thu 13:00 (HST)
Fair · 4.4/10
Thu 13:00 (HST)
Model estimates using Open-Meteo; not observations or safety guarantees. Check official advisories and conditions at the beach.
Score: 4.4/10
Best time: Thu 13:00
Main risk: Waves
Best morning signal: Thu 07:00 (Fair).
Best afternoon signal: Thu 13:00 (Fair). Peak afternoon wind is about 4.4 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
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.
Thursday
⚠️ Fair conditions
Main blocker: Waves
Friday
⚠️ Fair conditions
Main blocker: Waves
Saturday
⚠️ 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: Sat 02:00
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
Thu 02:00 – Sun 02:00 (HST)
Best snorkel score is 0.5 around Thu 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 1.18m to 1.26m).
Wind is at or below 5.4m/s in 24/24 sampled hours (range 1.24 to 4.25m/s).
Tides range from 0.28m to 0.89m; 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 |
|---|---|---|---|---|
| Thu 02:00 | 1.22 · high | 1.34 · good | 26.00 · good | Poor |
| Thu 03:00 | 1.22 · high | 1.62 · good | 26.00 · good | Poor |
| Thu 04:00 | 1.20 · high | 1.24 · good | 26.00 · good | Poor |
| Thu 05:00 | 1.20 · high | 1.68 · good | 26.00 · good | Poor |
| Thu 06:00 | 1.20 · high | 1.63 · good | 26.00 · good | Poor |
| Thu 07:00 | 1.18 · high | 2.21 · good | 26.00 · good | Fair |
| Thu 08:00 | 1.18 · high | 2.54 · good | 26.00 · good | Fair |
| Thu 09:00 | 1.24 · high | 3.68 · good | 26.00 · good | Fair |
| Thu 10:00 | 1.24 · high | 4.20 · good | 26.10 · good | Fair |
| Thu 11:00 | 1.24 · high | 4.25 · good | 26.10 · good | Fair |
| Thu 12:00 | 1.24 · high | 4.20 · good | 26.20 · good | Fair |
| Thu 13:00 | 1.24 · high | 3.97 · good | 26.20 · good | Fair |
| Thu 14:00 | 1.24 · high | 3.88 · good | 26.30 · good | Poor |
| Thu 15:00 | 1.22 · high | 3.61 · good | 26.30 · good | Poor |
| Thu 16:00 | 1.22 · high | 3.50 · good | 26.30 · good | Poor |
| Thu 17:00 | 1.20 · high | 3.44 · good | 26.30 · good | Poor |
| Thu 18:00 | 1.22 · high | 3.34 · good | 26.30 · good | Poor |
| Thu 19:00 | 1.22 · high | 2.65 · good | 26.20 · good | Poor |
| Thu 20:00 | 1.24 · high | 1.40 · good | 26.20 · good | Poor |
| Thu 21:00 | 1.24 · high | 1.81 · good | 26.20 · good | Poor |
| Thu 22:00 | 1.26 · high | 2.57 · good | 26.20 · good | Poor |
| Thu 23:00 | 1.26 · high | 2.40 · good | 26.20 · good | Poor |
| Fri 00:00 | 1.26 · high | 1.65 · good | 26.20 · good | Poor |
| Fri 01:00 | 1.18 · high | 2.76 · good | 26.20 · good | Poor |
| Fri 02:00 | 1.18 · high | 2.71 · good | 26.20 · good | Poor |
| Fri 03:00 | 1.18 · high | 2.46 · good | 26.20 · good | Poor |
| Fri 04:00 | 1.20 · high | 2.56 · good | 26.10 · good | Poor |
| Fri 05:00 | 1.20 · high | 2.55 · good | 26.10 · good | Poor |
| Fri 06:00 | 1.20 · high | 2.24 · good | 26.10 · good | Poor |
| Fri 07:00 | 1.20 · high | 2.59 · good | 26.10 · good | Fair |
| Fri 08:00 | 1.20 · high | 2.85 · good | 26.10 · good | Fair |
| Fri 09:00 | 1.22 · high | 3.54 · good | 26.20 · good | Fair |
| Fri 10:00 | 1.22 · high | 3.53 · good | 26.20 · good | Fair |
| Fri 11:00 | 1.20 · high | 3.56 · good | 26.20 · good | Fair |
| Fri 12:00 | 1.20 · high | 3.70 · good | 26.30 · good | Fair |
| Fri 13:00 | 1.18 · high | 3.66 · good | 26.30 · good | Fair |
| Fri 14:00 | 1.18 · high | 3.55 · good | 26.40 · good | Poor |
| Fri 15:00 | 1.18 · high | 3.58 · good | 26.40 · good | Poor |
| Fri 16:00 | 1.18 · high | 3.49 · good | 26.40 · good | Poor |
| Fri 17:00 | 1.18 · high | 3.36 · good | 26.40 · good | Poor |
| Fri 18:00 | 1.20 · high | 3.18 · good | 26.40 · good | Poor |
| Fri 19:00 | 1.24 · high | 2.97 · good | 26.40 · good | Poor |
| Fri 20:00 | 1.26 · high | 2.97 · good | 26.40 · good | Poor |
| Fri 21:00 | 1.28 · high | 3.59 · good | 26.40 · good | Poor |
| Fri 22:00 | 1.28 · high | 3.02 · good | 26.40 · good | Poor |
| Fri 23:00 | 1.30 · high | 2.75 · good | 26.40 · good | Poor |
| Sat 00:00 | 1.30 · high | 2.57 · good | 26.30 · good | Poor |
| Sat 01:00 | 1.26 · high | 2.47 · good | 26.30 · good | Poor |
| Sat 02:00 | 1.28 · high | 2.30 · good | 26.30 · good | Poor |
| Sat 03:00 | 1.28 · high | 2.06 · good | 26.30 · good | Poor |
| Sat 04:00 | 1.30 · high | 2.50 · good | 26.30 · good | Poor |
| Sat 05:00 | 1.30 · high | 1.74 · good | 26.30 · good | Poor |
| Sat 06:00 | 1.32 · high | 2.53 · good | 26.30 · good | Poor |
| Sat 07:00 | 1.36 · high | 3.01 · good | 26.30 · good | Fair |
| Sat 08:00 | 1.38 · high | 3.67 · good | 26.30 · good | Fair |
| Sat 09:00 | 1.44 · high | 3.92 · good | 26.30 · good | Fair |
| Sat 10:00 | 1.46 · high | 4.20 · good | 26.40 · good | Fair |
| Sat 11:00 | 1.46 · high | 4.22 · good | 26.40 · good | Fair |
| Sat 12:00 | 1.48 · high | 4.05 · good | 26.40 · good | Fair |
| Sat 13:00 | 1.50 · high | 4.50 · good | 26.50 · good | Fair |
| Sat 14:00 | 1.52 · high | 5.11 · good | 26.50 · good | Poor |
| Sat 15:00 | 1.54 · high | 4.75 · good | 26.50 · good | Poor |
| Sat 16:00 | 1.54 · high | 4.41 · good | 26.50 · good | Poor |
| Sat 17:00 | 1.56 · high | 4.07 · good | 26.50 · good | Poor |
| Sat 18:00 | 1.58 · high | 4.47 · good | 26.50 · good | Poor |
| Sat 19:00 | 1.62 · high | 3.85 · good | 26.40 · good | Poor |
| Sat 20:00 | 1.64 · high | 3.43 · good | 26.40 · good | Poor |
| Sat 21:00 | 1.66 · high | 3.78 · good | 26.40 · good | Poor |
| Sat 22:00 | 1.68 · high | 3.91 · good | 26.40 · good | Poor |
| Sat 23:00 | 1.70 · high | 4.08 · good | 26.40 · good | Poor |
| Sun 00:00 | 1.70 · high | 4.27 · good | 26.40 · good | Poor |
| Sun 01:00 | 1.68 · high | 2.40 · good | 26.10 · good | Poor |