
Surf Forecasts:
Sandy Beach surf forecast from 2 Aug 2026:
- Most powerful swell: Sunday 2 Aug, 2AM (local time) - 8ft (2.5m), 8s period, ENE swell with 956 kJ wave energy.
Best Forecast Surf Conditions for Sandy Beach this week:
The most powerful waves expected at Sandy Beach in the next 16 days are 2.5m 8s and forecast to arrive on Sunday (Aug 02) at 2AM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.5m 15s period and expected on Wednesday (Aug 05) at 8PM.
| Wave Type | Time (HST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 2AM (Sun 2nd Aug) | 8ft (2.5m) 8s |
Table - best surf conditions forecast for Sandy Beach over the next 16 days.
The Lowdown
Alright, let’s get into it. Rusty here.
First up, the outlook for Sandy Beach… and to be honest, it’s a bit of a tough one. The whole 16-day window is looking pretty ordinary. There’s a gap right at the start – no decent surf on offer from August 1st right through to August 16th. That’s a solid two-week stretch with nothing worth paddling out for.
Let’s talk about why. For the first week, we’ve got a consistent easterly wind blowing cross-shore at 19 to 25 mph. That’s ruining any chance of clean waves. The swell is mostly coming from the east-northeast with short, weak 7 to 8 second periods. The combined wave energy is moderate at best, sitting in the 200 to 600 range (a few days hit 1297 early on, but with that wind and chop, it’s messy). Water temperature is sitting at a comfortable 80°, which is about average for this time of year, so at least you won’t need a thick suit.
The only glimmer of something potentially interesting comes in the second week, around August 12th to 15th. We start to see a longer-period south swell pushing through, with periods up to 18 seconds. That’s proper groundswell energy, and the combined energy jumps up to 755 to 919 – moderate to strong energy. But here’s the catch: the wind just won’t play ball. It’s still blowing fresh to strong from the east-northeast, cross to cross-onshore, and the wave comment is “poor surf conditions” across the board. The swell size is only 3 ft to 4 ft, so nothing to write home about anyway. This setup looks far more interesting for kite surfing than paddle surfing.
There’s nothing here that stands out as a true standout. The only break in the guidance is Sandy Beach, an intermediate-level beach and reef break that’s fairly consistent and exposed to the east-southeast – but with the wind and swell direction all wrong, it’s just not happening. Crowds are often around, but right now, nobody’s missing out. If you absolutely had to pick the least bad time, maybe Tuesday morning, August 4th? That’s a marginal session with 5 ft east-northeast swell, moderate cross-shore wind at 12 mph, and a somewhat longer 11-second period. But even then, it’s a 1 out of 10. Not worth the drive.
So there you have it: two weeks of flat to poor conditions. It tends not to stay this locked in for long, and forecasts can change, but for now, leave the boards at home.
Rusty.
Short Range ForecastMostly dry. Warm (max 26°C on Sat afternoon, min 24°C on Mon night). Winds decreasing (strong winds from the ENE on Sat night, light winds from the NE by Tue morning). | Days 5-7 Weather SummaryMostly dry. Warm (max 26°C on Wed afternoon, min 25°C on Tue afternoon). Mainly fresh winds. | |||||||||||||||||||
Sat 1 | Sunday 2 | Monday 3 | Tuesday 4 | Wednesday 5 | Thursday 6 | Friday 7 | ||||||||||||||
PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | |
Swell Height Map | ||||||||||||||||||||
Wave Height (m) Direction Period (s) | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 12 | ENE 11 | ENE 11 | ENE 11 | ENE 10 | ENE 9 | ENE 9 | ENE 8 | ENE 8 | ENE 6 | SSW 14 | SSW 14 | ENE 7 |
Wave Graph | ||||||||||||||||||||
939 | 956 | 720 | 627 | 541 | 353 | 331 | 701 | 524 | 415 | 427 | 275 | 188 | 147 | 128 | 125 | 74 | 77 | 73 | 350 | |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross-on | cross | cross | cross | cross | cross | cross-on |
High Tide | 4:53PM0.60m | 5:48AM0.38m | 5:22PM0.53m | 6:48AM0.43m | 5:53PM0.45m | 7:57AM0.48m | 6:26PM0.37m | 9:10AM0.55m | 7:10PM0.29m | 10:22AM0.61m | 8:39PM0.22m | 11:25AM0.67m | 10:36PM0.19m | |||||||
Low Tide | 00:02AM0.05m | 11:17AM0.16m | 00:29AM0.04m | 12:27PM0.23m | 00:59AM0.04m | 2:07PM0.27m | 1:37AM0.03m | 4:33PM0.27m | 2:24AM0.02m | 6:43PM0.21m | 3:25AM0.02m | 7:38PM0.16m | 4:32AM0.00m | |||||||
— | — | 6:03 | — | — | 6:03 | — | — | 6:05 | — | — | 6:05 | — | — | 6:05 | — | — | 6:05 | — | — | |
7:08 | — | — | 7:08 | — | — | 7:07 | — | — | 7:07 | — | — | 7:07 | — | — | 7:06 | — | — | 7:06 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 26 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 26 | 25 | 25 | 26 | 25 | 25 | 26 | 25 |
Feels °C | 22 | 22 | 21 | 21 | 22 | 24 | 23 | 24 | 26 | 25 | 25 | 25 | 26 | 25 | 25 | 26 | 24 | 24 | 24 | 23 |
Swell 1 Height (m) Direction Period (s) | E 14 | E 14 | E 14 | E 14 | E 13 | E 13 | E 12 | ENE 12 | ENE 11 | ENE 11 | ENE 11 | ENE 10 | ENE 9 | ENE 9 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 7 | SSW 14 |
196 | 194 | 246 | 192 | 125 | 84 | 108 | 701 | 524 | 415 | 427 | 275 | 188 | 147 | 128 | 125 | 39 | 22 | 20 | 75 | |
Swell 2 Height (m) Direction Period (s) | SSW 14 | SSW 14 | SSW 14 | SSW 13 | SSW 13 | SSW 13 | SSW 12 | SSW 12 | SSW 12 | SSW 12 | SSW 11 | SSW 11 | SSW 15 | SSW 14 | SSW 14 | SSW 14 | SW 14 | SSW 14 | SSW 14 | SSW 19 |
123 | 131 | 133 | 67 | 56 | 53 | 49 | 56 | 46 | 53 | 47 | 47 | 88 | 82 | 81 | 80 | 102 | 77 | 73 | 148 | |
Swell 3 Height (m) Direction Period (s) | S 11 | S 11 | N 9 | N 9 | SW 13 | SW 13 | SW 13 | SSE 9 | SSW 16 | SW 16 | SW 15 | SSE 13 | SSW 11 | SSE 12 | SSE 11 | SSE 11 | SSE 11 | SW 21 | SSE 11 | S 11 |
39 | 22 | 15 | 14 | 42 | 42 | 41 | 9 | 26 | 68 | 57 | 56 | 38 | 48 | 25 | 24 | 40 | 115 | 38 | 20 | |
Wind waves Height (m) Direction Period (s) | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | — | — | — | — | — | — | — | — | NE 5 | ENE 6 | ENE 5 | ENE 6 | ENE 7 |
939 | 956 | 720 | 627 | 541 | 353 | 331 | — | — | — | — | — | — | — | — | 23 | 74 | 48 | 57 | 350 | |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 61 | 63 | 55 | 140 | 50 | 50 | 50 | 16 | 16 | 5 | 16 | 16 | 16 | 16 | 47 | 48 | 20 | 48 | 55 | 55 |
Best forecast wave conditions in Oahu | ||||||||||||||||||||
Best forecast wave conditions in United States | ||||||||||||||||||||
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Information about the Sandy Beach Surf forecast
The above surf forecast table for Sandy Beach provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Sandy Beach can be found by selecting the local surf guide option on the grey menu. Our Sandy Beach surf forecast is unique since it includes wave energy (power) that defines the real feel of the surf rather than just the height or the period. If you surf the same spot (Sandy Beach) regularly then make a mental note of the wave energy from the surf forecast table each time you go. Very soon you may start to choose your surf days based on the wave energy alone combined with our forecast of favourable offshore wind conditions. Our star ratings will help here and of course you will also find the usual wave height and period predictions on our surf forecasts as well as a full break down of the swell components under our advanced users option (to reveal that, click the little Einstein character under the tide times).
Further information to help with frequently asked questions about our surf forecast for Sandy Beach may be found under the help tab on the top menu and also by moving your mouse over the question marks on the surf forecast table itself. Please always bear in mind that the forecast is for near-shore open water and local factors at each surf break influence the actual breaking wave height, such as the beach / reef profile, water depths offshore and shelter.
Sandy's Beach is 15 km (9 miles) from the city of Kailua. If you plan a vacation in Oahu, look for hotels and other accommodation in Kailua. Kailua has rooms for a wide range of budgets as well as car hire and transport links.











