Saturday
❌ Poor conditions
Main blocker: Waves
USA · Updated Sat 20:35 (HST) · Source: Snapshot
The skinny
Poor Data updated Sat 20:35 (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 20:00 (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, Tue 17:00
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
Wed 20:00 – Sat 20:00 (HST)
Best snorkel score is 0.57 around Thu 08:00; 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 0.96m to 1.06m).
Wind is at or below 5.4m/s in 24/24 sampled hours (range 0.07 to 2.98m/s).
Tides range from 0.33m to 0.93m; 0 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 |
|---|---|---|---|---|
| Wed 20:00 | 1.02 · high | 1.00 · good | 28.70 · good | Poor |
| Wed 21:00 | 1.02 · high | 0.40 · good | 28.60 · good | Poor |
| Wed 22:00 | 1.02 · high | 0.59 · good | 28.60 · good | Poor |
| Wed 23:00 | 1.02 · high | 1.02 · good | 28.50 · good | Poor |
| Thu 00:00 | 1.00 · high | 0.81 · good | 28.40 · good | Poor |
| Thu 01:00 | 1.04 · high | 0.07 · good | 28.30 · good | Poor |
| Thu 02:00 | 1.04 · high | 0.10 · good | 28.30 · good | Poor |
| Thu 03:00 | 1.02 · high | 0.15 · good | 28.20 · good | Poor |
| Thu 04:00 | 1.02 · high | 0.29 · good | 28.20 · good | Poor |
| Thu 05:00 | 1.00 · high | 0.43 · good | 28.10 · good | Poor |
| Thu 06:00 | 0.98 · high | 0.47 · good | 28.10 · good | Poor |
| Thu 07:00 | 0.98 · high | 0.81 · good | 28.10 · good | Good |
| Thu 08:00 | 0.96 · high | 0.82 · good | 28.10 · good | Good |
| Thu 09:00 | 0.98 · high | 0.99 · good | 28.20 · good | Good |
| Thu 10:00 | 1.00 · high | 1.73 · good | 28.30 · good | Good |
| Thu 11:00 | 1.00 · high | 1.96 · good | 28.50 · good | Fair |
| Thu 12:00 | 1.02 · high | 2.54 · good | 28.60 · good | Fair |
| Thu 13:00 | 1.02 · high | 2.98 · good | 28.70 · good | Fair |
| Thu 14:00 | 1.04 · high | 1.97 · good | 28.80 · good | Poor |
| Thu 15:00 | 1.04 · high | 1.95 · good | 28.80 · good | Poor |
| Thu 16:00 | 1.04 · high | 1.67 · good | 28.80 · good | Poor |
| Thu 17:00 | 1.04 · high | 1.54 · good | 28.70 · good | Poor |
| Thu 18:00 | 1.06 · high | 0.99 · good | 28.60 · good | Poor |
| Thu 19:00 | 1.06 · high | 0.43 · good | 28.60 · good | Poor |
| Thu 20:00 | 1.08 · high | 0.21 · good | 28.50 · good | Poor |
| Thu 21:00 | 1.08 · high | 0.05 · good | 28.50 · good | Poor |
| Thu 22:00 | 1.10 · high | 0.25 · good | 28.50 · good | Poor |
| Thu 23:00 | 1.10 · high | 0.21 · good | 28.40 · good | Poor |
| Fri 00:00 | 1.10 · high | 0.27 · good | 28.40 · good | Poor |
| Fri 01:00 | 1.14 · high | 1.07 · good | 28.40 · good | Poor |
| Fri 02:00 | 1.14 · high | 0.72 · good | 28.30 · good | Poor |
| Fri 03:00 | 1.14 · high | 0.43 · good | 28.30 · good | Poor |
| Fri 04:00 | 1.14 · high | 0.21 · good | 28.30 · good | Poor |
| Fri 05:00 | 1.14 · high | 0.47 · good | 28.20 · good | Poor |
| Fri 06:00 | 1.14 · high | 0.35 · good | 28.20 · good | Poor |
| Fri 07:00 | 1.16 · high | 0.20 · good | 28.20 · good | Good |
| Fri 08:00 | 1.16 · high | 0.64 · good | 28.20 · good | Good |
| Fri 09:00 | 1.28 · high | 2.03 · good | 28.30 · good | Good |
| Fri 10:00 | 1.26 · high | 2.47 · good | 28.40 · good | Fair |
| Fri 11:00 | 1.26 · high | 3.47 · good | 28.60 · good | Fair |
| Fri 12:00 | 1.28 · high | 2.86 · good | 28.70 · good | Fair |
| Fri 13:00 | 1.28 · high | 2.29 · good | 28.90 · good | Fair |
| Fri 14:00 | 1.30 · high | 2.70 · good | 28.90 · good | Poor |
| Fri 15:00 | 1.32 · high | 2.56 · good | 28.90 · good | Poor |
| Fri 16:00 | 1.36 · high | 2.15 · good | 28.90 · good | Poor |
| Fri 17:00 | 1.38 · high | 1.94 · good | 28.80 · good | Poor |
| Fri 18:00 | 1.42 · high | 1.45 · good | 28.70 · good | Poor |
| Fri 19:00 | 1.48 · high | 1.05 · good | 28.60 · good | Poor |
| Fri 20:00 | 1.52 · high | 1.38 · good | 28.50 · good | Poor |
| Fri 21:00 | 1.54 · high | 0.81 · good | 28.50 · good | Poor |
| Fri 22:00 | 1.56 · high | 1.01 · good | 28.40 · good | Poor |
| Fri 23:00 | 1.58 · high | 1.37 · good | 28.40 · good | Poor |
| Sat 00:00 | 1.60 · high | 1.28 · good | 28.30 · good | Poor |
| Sat 01:00 | 1.60 · high | 0.25 · good | 28.30 · good | Poor |
| Sat 02:00 | 1.56 · high | 0.56 · good | 28.20 · good | Poor |
| Sat 03:00 | 1.56 · high | 0.53 · good | 28.20 · good | Poor |
| Sat 04:00 | 1.56 · high | 0.71 · good | 28.10 · good | Poor |
| Sat 05:00 | 1.56 · high | 0.35 · good | 28.10 · good | Poor |
| Sat 06:00 | 1.56 · high | 0.39 · good | 28.10 · good | Poor |
| Sat 07:00 | 1.56 · high | 0.43 · good | 28.10 · good | Fair |
| Sat 08:00 | 1.56 · high | 0.36 · good | 28.10 · good | Fair |
| Sat 09:00 | 1.54 · high | 1.86 · good | 28.20 · good | Fair |
| Sat 10:00 | 1.54 · high | 2.23 · good | 28.40 · good | Fair |
| Sat 11:00 | 1.54 · high | 3.04 · good | 28.50 · good | Fair |
| Sat 12:00 | 1.54 · high | 3.00 · good | 28.70 · good | Fair |
| Sat 13:00 | 1.52 · high | 2.91 · good | 28.80 · good | Fair |
| Sat 14:00 | 1.52 · high | 2.70 · good | 28.90 · good | Poor |
| Sat 15:00 | 1.52 · high | 2.29 · good | 28.90 · good | Poor |
| Sat 16:00 | 1.54 · high | 1.74 · good | 28.90 · good | Poor |
| Sat 17:00 | 1.54 · high | 1.65 · good | 28.90 · good | Poor |
| Sat 18:00 | 1.54 · high | 1.25 · good | 28.80 · good | Poor |
| Sat 19:00 | 1.56 · high | 0.75 · good | 28.70 · good | Poor |