Saturday
⚠️ Fair conditions
Main blocker: Waves
USA · Updated Sat 05:01 (HST) · Source: Snapshot
The skinny
Marginal Data updated Sat 05:01 (HST)Kahaluu Beach Park looks marginal today. The least-bad daylight window is around Sat 12:00, but waves is limiting the forecast.
Poor · 0.0/10
Sat 06:00 (HST)
Fair · 4.4/10
Sat 12:00 (HST)
Fair · 4.8/10
Sun 08:00 (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: Sat 12:00
Main risk: Waves
Best morning signal: Sat 07:00 (Fair).
Best afternoon signal: Sat 12:00 (Fair). Peak afternoon wind is about 2.3 m/s.
Best nearby spots later today
Read the Hawaii snorkeling guide for coast, access and best-month guidance.
AreaKailua-Kona
DifficultyEasy
Best timeMorning
ExposureProtected Kona reef
ShoreSandy/rocky entry with shallow reef
No good model window in the next 72 hours
Use the best-available section for the least-bad times.
Saturday
⚠️ Fair conditions
Main blocker: Waves
Sunday
⚠️ Fair conditions
Main blocker: Waves
Monday
⚠️ 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 Sat 22:00.
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: Sun 04:00
Sat 15:00, Sun 04:00, Sun 16:00, Mon 16:00
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
Sat 06:00 – Tue 06:00 (HST)
Best snorkel score is 0.44 around Sat 12:00; 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 1.44m to 2.16m).
Wind is at or below 5.4m/s in 24/24 sampled hours (range 0.28 to 2.48m/s).
Tides range from 0.31m to 1.09m; 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 |
|---|---|---|---|---|
| Sat 07:00 | 1.44 · high | 1.42 · good | 27.90 · good | Fair |
| Sat 08:00 | 1.46 · high | 1.66 · good | 27.90 · good | Fair |
| Sat 09:00 | 1.52 · high | 1.86 · good | 28.00 · good | Fair |
| Sat 10:00 | 1.56 · high | 2.11 · good | 28.10 · good | Fair |
| Sat 11:00 | 1.62 · high | 2.48 · good | 28.30 · good | Fair |
| Sat 12:00 | 1.64 · high | 2.32 · good | 28.40 · good | Fair |
| Sat 13:00 | 1.68 · high | 2.21 · good | 28.50 · good | Fair |
| Sat 14:00 | 1.70 · high | 1.59 · good | 28.60 · good | Poor |
| Sat 15:00 | 1.74 · high | 1.20 · good | 28.60 · good | Poor |
| Sat 16:00 | 1.80 · high | 1.83 · good | 28.60 · good | Poor |
| Sat 17:00 | 1.84 · high | 1.46 · good | 28.50 · good | Poor |
| Sat 18:00 | 1.94 · high | 1.70 · good | 28.40 · good | Poor |
| Sat 19:00 | 2.06 · high | 1.01 · good | 28.40 · good | Poor |
| Sat 20:00 | 2.16 · high | 2.39 · good | 28.30 · good | Poor |
| Sat 21:00 | 2.16 · high | 0.92 · good | 28.30 · good | Poor |
| Sat 22:00 | 2.16 · high | 1.37 · good | 28.20 · good | Poor |
| Sat 23:00 | 2.16 · high | 0.60 · good | 28.20 · good | Poor |
| Sun 00:00 | 2.10 · high | 1.09 · good | 28.10 · good | Poor |
| Sun 01:00 | 2.06 · high | 0.90 · good | 28.10 · good | Poor |
| Sun 02:00 | 2.00 · high | 1.01 · good | 28.00 · good | Poor |
| Sun 03:00 | 1.96 · high | 0.91 · good | 28.00 · good | Poor |
| Sun 04:00 | 1.90 · high | 1.29 · good | 28.00 · good | Poor |
| Sun 05:00 | 1.86 · high | 0.28 · good | 27.90 · good | Poor |
| Sun 06:00 | 1.82 · high | 0.45 · good | 27.90 · good | Poor |
| Sun 07:00 | 1.78 · high | 2.36 · good | 27.90 · good | Fair |
| Sun 08:00 | 1.74 · high | 0.85 · good | 28.00 · good | Fair |
| Sun 09:00 | 1.72 · high | 1.61 · good | 28.10 · good | Fair |
| Sun 10:00 | 1.70 · high | 2.55 · good | 28.20 · good | Fair |
| Sun 11:00 | 1.68 · high | 2.77 · good | 28.40 · good | Fair |
| Sun 12:00 | 1.68 · high | 2.50 · good | 28.50 · good | Fair |
| Sun 13:00 | 1.66 · high | 2.71 · good | 28.70 · good | Fair |
| Sun 14:00 | 1.66 · high | 2.55 · good | 28.70 · good | Poor |
| Sun 15:00 | 1.68 · high | 1.97 · good | 28.70 · good | Poor |
| Sun 16:00 | 1.68 · high | 2.22 · good | 28.70 · good | Poor |
| Sun 17:00 | 1.70 · high | 1.80 · good | 28.60 · good | Poor |
| Sun 18:00 | 1.70 · high | 1.26 · good | 28.50 · good | Poor |
| Sun 19:00 | 1.68 · high | 0.67 · good | 28.40 · good | Poor |
| Sun 20:00 | 1.68 · high | 0.25 · good | 28.30 · good | Poor |
| Sun 21:00 | 1.66 · high | 0.32 · good | 28.20 · good | Poor |
| Sun 22:00 | 1.64 · high | 0.11 · good | 28.20 · good | Poor |
| Sun 23:00 | 1.62 · high | 0.07 · good | 28.10 · good | Poor |
| Mon 00:00 | 1.60 · high | 0.05 · good | 28.10 · good | Poor |
| Mon 01:00 | 1.58 · high | 0.32 · good | 28.10 · good | Poor |
| Mon 02:00 | 1.56 · high | 0.70 · good | 28.00 · good | Poor |
| Mon 03:00 | 1.56 · high | 0.50 · good | 28.00 · good | Poor |
| Mon 04:00 | 1.54 · high | 0.27 · good | 28.00 · good | Poor |
| Mon 05:00 | 1.54 · high | 0.05 · good | 27.90 · good | Poor |
| Mon 06:00 | 1.52 · high | 0.11 · good | 27.90 · good | Poor |
| Mon 07:00 | 1.52 · high | 0.88 · good | 27.90 · good | Fair |
| Mon 08:00 | 1.50 · high | 1.35 · good | 28.00 · good | Fair |
| Mon 09:00 | 1.48 · high | 1.82 · good | 28.10 · good | Fair |
| Mon 10:00 | 1.48 · high | 1.96 · good | 28.20 · good | Fair |
| Mon 11:00 | 1.46 · high | 2.17 · good | 28.40 · good | Fair |
| Mon 12:00 | 1.46 · high | 2.10 · good | 28.60 · good | Fair |
| Mon 13:00 | 1.46 · high | 2.96 · good | 28.70 · good | Poor |
| Mon 14:00 | 1.46 · high | 2.45 · good | 28.80 · good | Poor |
| Mon 15:00 | 1.44 · high | 1.74 · good | 28.80 · good | Poor |
| Mon 16:00 | 1.44 · high | 1.63 · good | 28.70 · good | Poor |
| Mon 17:00 | 1.42 · high | 2.09 · good | 28.60 · good | Poor |
| Mon 18:00 | 1.40 · high | 1.52 · good | 28.50 · good | Poor |
| Mon 19:00 | 1.40 · high | 1.38 · good | 28.40 · good | Poor |
| Mon 20:00 | 1.38 · high | 0.90 · good | 28.40 · good | Poor |
| Mon 21:00 | 1.36 · high | 0.05 · good | 28.30 · good | Poor |
| Mon 22:00 | 1.34 · high | 0.30 · good | 28.30 · good | Poor |
| Mon 23:00 | 1.32 · high | 0.71 · good | 28.20 · good | Poor |
| Tue 00:00 | 1.30 · high | 0.62 · good | 28.20 · good | Poor |
| Tue 01:00 | 1.26 · high | 0.70 · good | 28.10 · good | Poor |
| Tue 02:00 | 1.24 · high | 1.07 · good | 28.10 · good | Poor |
| Tue 03:00 | 1.22 · high | 0.63 · good | 28.00 · good | Poor |