USA · Updated Sun 00:12 (HST) · Source: Snapshot
The skinny
Marginal Data updated Sun 00:12 (HST)Oahu looks marginal today. The least-bad daylight window is around Sun 07:00, but waves is limiting the forecast.
Poor · 0.0/10
Sun 00:00 (HST)
Poor · 3.4/10
Sun 07:00 (HST)
Fair · 4.5/10
Mon 12:00 (HST)
Model estimates using Open-Meteo; not observations or safety guarantees. Check official advisories and conditions at the beach.
Score: 3.4/10
Best time: Sun 07:00
Main risk: Waves
Best morning signal: Sun 07:00 (Poor).
Best afternoon signal: Sun 12:00 (Poor). Peak afternoon wind is about 8.7 m/s.
Best nearby spots later today
Weakest nearby later today
Read the Oahu snorkeling guide for coast, access and best-month guidance. Also: Maui vs Big Island, Maui vs Oahu
Sunday, September 27, 2026 · HST · Data updated Sun 00:12
Compare the coasts by forecast period. These are model estimates, not beach observations. Open each beach report and check official advisories before leaving.
Hanauma Bay has the best forecast in Southeast Oahu later today.
Forecast for the hour starting Sun 00:00: 3.2 m waves and 11.2 m/s wind.
Its best forecast hour is Sun 10:00, with 3.1 m waves and 11.4 m/s wind.
Its best forecast hour is Tue 07:00, with 1.7 m waves and 1.0 m/s wind.
Lanikai Beach has the best forecast in Windward Oahu later today.
Forecast for the hour starting Sun 00:00: 3.7 m waves and 11.2 m/s wind.
Its best forecast hour is Sun 13:00, with 3.5 m waves and 9.8 m/s wind.
Its best forecast hour is Tue 07:00, with 1.8 m waves and 1.0 m/s wind.
Electric Beach has the best forecast in Leeward Oahu later today.
Forecast for the hour starting Sun 00:00: 2.8 m waves and 10.0 m/s wind.
Its best forecast hour is Sun 08:00, with 2.9 m waves and 9.7 m/s wind.
Its best forecast hour is Tue 07:00, with 2.0 m waves and 2.4 m/s wind.
Sharks Cove has the best forecast in North Shore Oahu later today.
Forecast for the hour starting Sun 00:00: 3.7 m waves and 10.1 m/s wind.
Its best forecast hour is Sun 11:00, with 3.4 m waves and 9.6 m/s wind.
Its best forecast hour is Tue 07:00, with 1.9 m waves and 2.6 m/s wind.
No beach in this Oahu report reaches our good model threshold later today. Check the hourly beach forecasts and official alerts before entering the water.
Sharks Cove · 2.7/10
Its best forecast hour is Sun 11:00, with 3.4 m waves and 9.6 m/s wind.
A camera shows one stretch of coast. Check its time stamp and the official alerts too.
Oahu sea temperature · Compare Hawaii islands · Read the Oahu snorkeling guide
The score uses the hourly wave, wind, water temperature, tide and current forecast. A beach can differ from the wider forecast grid. Check beach signs, lifeguards and official alerts before you enter.
AreaOahu
DifficultyVaries by beach
Best timeMorning
ExposureSouth, west, east and north shores vary by season
ShoreIsland hub
No good model window in the next 72 hours
Use the best-available section for the least-bad times.
Sunday
❌ Poor conditions
Main blocker: Waves
Monday
⚠️ Fair conditions
Main blocker: Waves
Tuesday
⚠️ 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 Sun 07:00.
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 15:00, Mon 04:00, Mon 16:00, Tue 05:00, Tue 16:00
Prices and availability from Viator. Check conditions before you book.
We may earn a commission at no extra cost to you.
Free cancellation available
Free cancellation available
Free cancellation available
Free cancellation available
Free cancellation available
Free cancellation available
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
Tue 00:00 – Fri 00:00 (HST)
Best snorkel score is 0.47 around Tue 10:00; 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 0.76m to 0.84m).
Wind is at or below 5.4m/s in 24/24 sampled hours (range 2.0 to 4.38m/s).
Tides range from 0.26m to 0.84m; 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 |
|---|---|---|---|---|
| Tue 00:00 | 0.78 · high | 2.11 · good | 27.80 · good | Poor |
| Tue 01:00 | 0.80 · high | 2.26 · good | 27.80 · good | Poor |
| Tue 02:00 | 0.80 · high | 2.39 · good | 27.70 · good | Poor |
| Tue 03:00 | 0.80 · high | 2.57 · good | 27.70 · good | Poor |
| Tue 04:00 | 0.80 · high | 2.46 · good | 27.70 · good | Poor |
| Tue 05:00 | 0.80 · high | 2.16 · good | 27.60 · good | Poor |
| Tue 06:00 | 0.80 · high | 2.00 · good | 27.60 · good | Poor |
| Tue 07:00 | 0.78 · high | 2.69 · good | 27.60 · good | Fair |
| Tue 08:00 | 0.78 · high | 3.29 · good | 27.60 · good | Fair |
| Tue 09:00 | 0.78 · high | 3.95 · good | 27.60 · good | Fair |
| Tue 10:00 | 0.76 · high | 4.26 · good | 27.70 · good | Fair |
| Tue 11:00 | 0.76 · high | 4.38 · good | 27.80 · good | Fair |
| Tue 12:00 | 0.76 · high | 4.37 · good | 27.80 · good | Fair |
| Tue 13:00 | 0.76 · high | 4.32 · good | 27.90 · good | Fair |
| Tue 14:00 | 0.76 · high | 3.94 · good | 28.00 · good | Poor |
| Tue 15:00 | 0.76 · high | 3.77 · good | 28.00 · good | Poor |
| Tue 16:00 | 0.76 · high | 3.79 · good | 28.00 · good | Poor |
| Tue 17:00 | 0.76 · high | 3.79 · good | 28.10 · good | Poor |
| Tue 18:00 | 0.78 · high | 3.22 · good | 28.10 · good | Poor |
| Tue 19:00 | 0.80 · high | 2.98 · good | 28.10 · good | Poor |
| Tue 20:00 | 0.82 · high | 2.66 · good | 28.10 · good | Poor |
| Tue 21:00 | 0.82 · high | 2.52 · good | 28.10 · good | Poor |
| Tue 22:00 | 0.84 · high | 2.62 · good | 28.00 · good | Poor |
| Tue 23:00 | 0.84 · high | 2.72 · good | 28.00 · good | Poor |
| Wed 00:00 | 0.84 · high | 2.30 · good | 28.00 · good | Poor |
| Wed 01:00 | 0.90 · high | 2.36 · good | 27.80 · good | Poor |
| Wed 02:00 | 0.90 · high | 1.96 · good | 27.70 · good | Poor |
| Wed 03:00 | 0.90 · high | 2.06 · good | 27.70 · good | Poor |
| Wed 04:00 | 0.90 · high | 2.64 · good | 27.70 · good | Poor |
| Wed 05:00 | 0.90 · high | 2.40 · good | 27.60 · good | Poor |
| Wed 06:00 | 0.90 · high | 2.62 · good | 27.60 · good | Poor |
| Wed 07:00 | 0.92 · high | 3.04 · good | 27.60 · good | Good |
| Wed 08:00 | 0.92 · high | 3.19 · good | 27.60 · good | Fair |
| Wed 09:00 | 0.92 · high | 4.54 · good | 27.70 · good | Fair |
| Wed 10:00 | 0.94 · high | 4.57 · good | 27.70 · good | Fair |
| Wed 11:00 | 0.94 · high | 4.72 · good | 27.80 · good | Fair |
| Wed 12:00 | 0.96 · high | 4.91 · good | 27.90 · good | Fair |
| Wed 13:00 | 0.96 · high | 4.98 · good | 28.00 · good | Fair |
| Wed 14:00 | 0.98 · high | 4.87 · good | 28.00 · good | Poor |
| Wed 15:00 | 0.98 · high | 4.85 · good | 28.10 · good | Poor |
| Wed 16:00 | 1.00 · high | 4.99 · good | 28.10 · good | Poor |
| Wed 17:00 | 1.00 · high | 4.33 · good | 28.10 · good | Poor |
| Wed 18:00 | 1.00 · high | 3.79 · good | 28.10 · good | Poor |
| Wed 19:00 | 0.98 · high | 3.58 · good | 28.10 · good | Poor |
| Wed 20:00 | 0.98 · high | 3.64 · good | 28.10 · good | Poor |
| Wed 21:00 | 1.00 · high | 3.59 · good | 28.10 · good | Poor |
| Wed 22:00 | 1.00 · high | 3.64 · good | 28.10 · good | Poor |
| Wed 23:00 | 1.02 · high | 3.56 · good | 28.10 · good | Poor |
| Thu 00:00 | 1.02 · high | 3.45 · good | 28.00 · good | Poor |
| Thu 01:00 | 1.02 · high | 3.34 · good | 28.10 · good | Poor |
| Thu 02:00 | 1.02 · high | 3.53 · good | 28.10 · good | Poor |
| Thu 03:00 | 1.00 · high | 3.79 · good | 28.00 · good | Poor |
| Thu 04:00 | 1.00 · high | 4.02 · good | 28.00 · good | Poor |
| Thu 05:00 | 0.98 · high | 4.13 · good | 28.00 · good | Poor |
| Thu 06:00 | 0.98 · high | 4.67 · good | 28.00 · good | Poor |
| Thu 07:00 | 1.08 · high | 4.58 · good | 28.00 · good | Fair |
| Thu 08:00 | 1.08 · high | 4.53 · good | 28.00 · good | Fair |
| Thu 09:00 | 1.12 · high | 5.40 · good | 28.00 · good | Fair |
| Thu 10:00 | 1.14 · high | 5.69 · high | 28.10 · good | Fair |
| Thu 11:00 | 1.18 · high | 5.31 · good | 28.10 · good | Fair |
| Thu 12:00 | 1.22 · high | 5.48 · high | 28.20 · good | Fair |
| Thu 13:00 | 1.24 · high | 5.56 · high | 28.20 · good | Fair |
| Thu 14:00 | 1.28 · high | 5.28 · good | 28.30 · good | Poor |
| Thu 15:00 | 1.28 · high | 5.11 · good | 28.30 · good | Poor |
| Thu 16:00 | 1.26 · high | 4.95 · good | 28.30 · good | Poor |
| Thu 17:00 | 1.26 · high | 4.53 · good | 28.30 · good | Poor |
| Thu 18:00 | 1.26 · high | 4.03 · good | 28.30 · good | Poor |
| Thu 19:00 | 1.26 · high | 3.82 · good | 28.30 · good | Poor |
| Thu 20:00 | 1.26 · high | 3.75 · good | 28.30 · good | Poor |
| Thu 21:00 | 1.26 · high | 3.74 · good | 28.30 · good | Poor |
| Thu 22:00 | 1.24 · high | 3.58 · good | 28.30 · good | Poor |
| Thu 23:00 | 1.24 · high | 3.61 · good | 28.20 · good | Poor |
