Saturday
❌ Poor conditions
Main blocker: Waves
USA · Updated Sat 15:47 (HST) · Source: Snapshot
The skinny
Poor Data updated Sat 15:47 (HST)Kahaluu Beach Park has no good model window later today. Check the three-day outlook and official beach advisories.
Poor · 0.0/10
Sat 16:00 (HST)
No fresh data for this period.
Fair · 5.4/10
Sun 07:00 (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.
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
❌ Poor 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
Sun 04:00, Sun 16:00, Mon 16:00, Tue 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 historical data
Thu 16:00 – Sun 16:00 (HST)
Best snorkel score is 0.48 around Fri 09:00; 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 0.82m to 0.86m).
Wind is at or below 5.4m/s in 24/24 sampled hours (range 0.22 to 2.11m/s).
Tides range from 0.21m to 0.95m; 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 16:00 | 0.86 · high | 0.85 · good | 28.90 · good | Poor |
| Thu 17:00 | 0.86 · high | 1.39 · good | 28.90 · good | Poor |
| Thu 18:00 | 0.86 · high | 1.28 · good | 28.80 · good | Poor |
| Thu 19:00 | 0.84 · high | 0.76 · good | 28.70 · good | Poor |
| Thu 20:00 | 0.84 · high | 1.10 · good | 28.70 · good | Poor |
| Thu 21:00 | 0.84 · high | 0.54 · good | 28.60 · good | Poor |
| Thu 22:00 | 0.82 · high | 0.50 · good | 28.60 · good | Poor |
| Thu 23:00 | 0.82 · high | 0.30 · good | 28.50 · good | Poor |
| Fri 00:00 | 0.82 · high | 0.22 · good | 28.40 · good | Poor |
| Fri 01:00 | 0.86 · high | 0.69 · good | 28.40 · good | Poor |
| Fri 02:00 | 0.86 · high | 0.55 · good | 28.30 · good | Poor |
| Fri 03:00 | 0.86 · high | 1.03 · good | 28.30 · good | Poor |
| Fri 04:00 | 0.86 · high | 1.42 · good | 28.30 · good | Poor |
| Fri 05:00 | 0.86 · high | 0.90 · good | 28.20 · good | Poor |
| Fri 06:00 | 0.84 · high | 1.03 · good | 28.20 · good | Poor |
| Fri 07:00 | 0.84 · high | 1.35 · good | 28.20 · good | Fair |
| Fri 08:00 | 0.82 · high | 1.11 · good | 28.30 · good | Fair |
| Fri 09:00 | 0.82 · high | 1.60 · good | 28.40 · good | Fair |
| Fri 10:00 | 0.84 · high | 1.43 · good | 28.50 · good | Fair |
| Fri 11:00 | 0.84 · high | 1.98 · good | 28.60 · good | Fair |
| Fri 12:00 | 0.84 · high | 2.00 · good | 28.70 · good | Fair |
| Fri 13:00 | 0.82 · high | 1.85 · good | 28.90 · good | Fair |
| Fri 14:00 | 0.82 · high | 1.50 · good | 28.90 · good | Poor |
| Fri 15:00 | 0.82 · high | 2.11 · good | 28.90 · good | Poor |
| Fri 16:00 | 0.80 · high | 2.21 · good | 28.90 · good | Poor |
| Fri 17:00 | 0.80 · high | 1.61 · good | 28.90 · good | Poor |
| Fri 18:00 | 0.80 · high | 1.65 · good | 28.80 · good | Poor |
| Fri 19:00 | 0.80 · high | 1.57 · good | 28.70 · good | Poor |
| Fri 20:00 | 0.80 · high | 0.83 · good | 28.70 · good | Poor |
| Fri 21:00 | 0.80 · high | 0.22 · good | 28.60 · good | Poor |
| Fri 22:00 | 0.78 · high | 0.05 · good | 28.60 · good | Poor |
| Fri 23:00 | 0.78 · high | 0.27 · good | 28.50 · good | Poor |
| Sat 00:00 | 0.78 · high | 0.60 · good | 28.40 · good | Poor |
| Sat 01:00 | 0.76 · high | 1.35 · good | 28.40 · good | Poor |
| Sat 02:00 | 0.76 · high | 0.66 · good | 28.30 · good | Poor |
| Sat 03:00 | 0.76 · high | 0.78 · good | 28.30 · good | Poor |
| Sat 04:00 | 0.74 · high | 1.58 · good | 28.30 · good | Poor |
| Sat 05:00 | 0.74 · high | 0.81 · good | 28.20 · good | Poor |
| Sat 06:00 | 0.74 · high | 0.61 · good | 28.20 · good | Poor |
| Sat 07:00 | 0.72 · high | 0.94 · good | 28.20 · good | Fair |
| Sat 08:00 | 0.72 · high | 1.32 · good | 28.20 · good | Fair |
| Sat 09:00 | 0.72 · high | 1.44 · good | 28.30 · good | Fair |
| Sat 10:00 | 0.72 · high | 2.36 · good | 28.40 · good | Fair |
| Sat 11:00 | 0.72 · high | 2.86 · good | 28.60 · good | Fair |
| Sat 12:00 | 0.72 · high | 2.11 · good | 28.70 · good | Fair |
| Sat 13:00 | 0.72 · high | 1.63 · good | 28.90 · good | Fair |
| Sat 14:00 | 0.72 · high | 2.26 · good | 28.90 · good | Poor |
| Sat 15:00 | 0.72 · high | 1.74 · good | 28.90 · good | Poor |
| Sat 16:00 | 0.72 · high | 2.05 · good | 28.90 · good | Poor |
| Sat 17:00 | 0.72 · high | 2.16 · good | 28.80 · good | Poor |
| Sat 18:00 | 0.72 · high | 1.95 · good | 28.80 · good | Poor |
| Sat 19:00 | 0.70 · high | 1.80 · good | 28.70 · good | Poor |
| Sat 20:00 | 0.70 · high | 1.66 · good | 28.60 · good | Poor |
| Sat 21:00 | 0.70 · high | 1.01 · good | 28.60 · good | Poor |
| Sat 22:00 | 0.68 · high | 0.81 · good | 28.50 · good | Poor |
| Sat 23:00 | 0.68 · high | 0.81 · good | 28.50 · good | Poor |
| Sun 00:00 | 0.68 · high | 0.65 · good | 28.40 · good | Poor |
| Sun 01:00 | 0.66 · high | 0.57 · good | 28.40 · good | Poor |
| Sun 02:00 | 0.66 · high | 0.25 · good | 28.30 · good | Poor |
| Sun 03:00 | 0.66 · high | 0.35 · good | 28.30 · good | Poor |
| Sun 04:00 | 0.64 · high | 0.36 · good | 28.30 · good | Poor |
| Sun 05:00 | 0.64 · high | 0.76 · good | 28.20 · good | Poor |
| Sun 06:00 | 0.64 · high | 0.62 · good | 28.20 · good | Poor |
| Sun 07:00 | 0.62 · high | 0.38 · good | 28.20 · good | Good |
| Sun 08:00 | 0.62 · high | 1.32 · good | 28.20 · good | Fair |
| Sun 09:00 | 0.62 · high | 2.61 · good | 28.30 · good | Fair |
| Sun 10:00 | 0.62 · high | 2.89 · good | 28.50 · good | Fair |
| Sun 11:00 | 0.62 · high | 3.25 · good | 28.60 · good | Fair |
| Sun 12:00 | 0.60 · high | 2.89 · good | 28.80 · good | Fair |
| Sun 13:00 | 0.60 · high | 2.53 · good | 28.90 · good | Fair |
| Sun 14:00 | 0.58 · high | 2.81 · good | 29.00 · good | Poor |
| Sun 15:00 | 0.58 · high | 2.50 · good | 29.00 · good | Poor |