
Surf Forecasts:
Sandy Beach surf forecast from 29 Jul 2026:
- Best quality surf: Wednesday 29 Jul, 5AM (local time) - 6.5ft (2.0m), 11s period, ENE swell with cross-offshore winds.
- Most powerful swell: Saturday 1 Aug, 2PM (local time) - 10ft (3.0m), 8s period, ENE swell with 1,156 kJ wave energy.
- Next surfable swell (1★+): Wednesday 29 Jul, 5AM (local time) - 6.5ft (2.0m), 11s period with ENE swell.
Best Forecast Surf Conditions for Sandy Beach this week:
The surf forecast for Sandy Beach over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Wednesday (Jul 29) at 5AM. The primary swell is predicted to be 2.0m and 11s period with a secondary swell of 0.9m and 9s. Another secondary swell of 1.1m and 7s is also forecast. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Sandy Beach in the next 16 days are 3.0m 8s and forecast to arrive on Saturday (Aug 01) at 2PM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.7m 15s period and expected on Friday (Jul 31) at 5PM.
| Wave Type | Time (HST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 5AM (Wed 29th Jul) | 6.5ft (2.0m) 11s |
| Best Surf | 5AM (Wed 29th Jul) | 6.5ft (2.0m) 11s |
| Most Powerful | 2PM (Sat 1st Aug) | 10ft (3.0m) 8s |
Table - best surf conditions forecast for Sandy Beach over the next 16 days.
The Lowdown
Alright folks, this is Rusty checkin' in from the sand. Let's have a look at what's on the menu for Sandy Beach over the next couple of weeks.
Right off the bat, we've got a bit of a mixed bag. The first real chance to get wet hits us on Wednesday morning, July 29th. The ocean's got some energy in it, with a combined swell energy of 892 (moderate), and we're lookin' at a 6ft swell from the ENE. The period is a solid 10 seconds, so there's some decent shape on offer. What really makes it stand out, though, is the wind. A gentle breeze from the north is blowin' cross-offshore, which is exactly what you want. That's gonna keep the face clean and make for some proper rippable walls. The water temp is about average for this time of year, so no drama there. This is the standout, no question.
Now, the rest of the week and into the weekend is a bit of a heartbreaker. By Wednesday afternoon, the wind swings around and gets messy. From Thursday July 30th right through to Monday August 3rd, the wind is a constant problem. We're talkin' strong breezes from the ENE, mostly cross or cross-on, just butchering the surface. The swell sticks around, getting up to 8ft on Saturday August 1st with a combined energy hitting 1375 (strong), but that wind is just gonna make it a washing machine. If you're a kite surfer, that ENE wind and the size might look interesting, but for paddle surfing, it's gonna be a tough, blown-out mess. That 8ft is also gettin' into the "experts only" territory, but with the chop, it's not worth it.
We then hit a long dry spell. From Monday August 3rd afternoon through to Tuesday August 11th, the conditions are just poor. The wind stays onshore or cross-shore, and the swell quality drops right off. There's a little bump on Tuesday August 4th morning with a 5ft swell and a period of 11 seconds, giving a combined energy of 679 (moderate), but the wind is just cross enough to ruin it. It's a frustrating stretch of days where the forecast just doesn't give you anything to get excited about.
Finally, we get a flicker of hope. On Wednesday morning, August 12th, we get a south swell comin' in. It's only 4ft, but the period is a very long 16 seconds, which is a proper groundswell. The combined energy is 707 (moderate), and the wind is a light breeze from the east, just cross-on. It's not perfect, but it's the cleanest thing we've seen in over a week. That long period means it'll be a bit more lined up, but beach breaks can get a bit straight. Still, beggars can't be choosers. That's your second-best bet, but it's a long way out and a bit uncertain.
To be honest, if you can get out there on Wednesday July 29th morning, that's your gold. The rest of the 16-day window is a slow grind with a lot of wind and not much magic.
Rusty.
Short Range ForecastMostly dry. Warm (max 27°C on Wed afternoon, min 24°C on Fri night). Winds increasing (light winds from the NE on Wed afternoon, strong winds from the ENE by Fri night). | Days 4-6 Weather SummaryMostly dry. Warm (max 25°C on Sat morning, min 24°C on Sat morning). Winds decreasing (strong winds from the ENE on Sat morning, light winds from the ENE by Mon night). | ||||||||||||||||||||
Wednesday 29 | Thursday 30 | Friday 31 | Saturday 1 | Sunday 2 | Monday 3 | Tuesday 4 | |||||||||||||||
AM | 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 10 | ENE 9 | S 14 | ENE 8 | ENE 8 | E 8 | ENE 8 | ENE 8 | E 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 12 | ENE 12 | ENE 11 | ENE 10 |
Wave Graph | |||||||||||||||||||||
697 | 413 | 184 | 250 | 207 | 258 | 427 | 427 | 880 | 916 | 1108 | 1076 | 781 | 662 | 578 | 394 | 361 | 793 | 660 | 515 | 394 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross | cross-on | cross-on | cross-on | cross-on | cross-on | cross | cross | cross | cross | cross-on | cross | cross | cross | cross | cross | cross-on | cross | cross-off | cross-on |
High Tide | 3:28PM0.69m | 3:26AM0.26m | 3:57PM0.68m | 4:08AM0.30m | 4:25PM0.65m | 4:55AM0.33m | 4:53PM0.60m | 5:48AM0.38m | 5:22PM0.53m | 6:48AM0.43m | 5:53PM0.45m | 7:57AM0.48m | 6:26PM0.37m | ||||||||
Low Tide | 8:21AM0.00m | 10:49PM0.08m | 8:58AM0.02m | 11:13PM0.07m | 9:38AM0.05m | 11:37PM0.06m | 10:23AM0.11m | 00:02AM0.05m | 11:17AM0.16m | 00:29AM0.04m | 12:27PM0.23m | 00:59AM0.04m | 2:07PM0.27m | 1:37AM0.03m | |||||||
6:01 | — | — | 6:03 | — | — | 6:03 | — | — | 6:03 | — | — | 6:03 | — | — | 6:03 | — | — | 6:05 | — | — | |
— | 7:10 | — | — | 7:09 | — | — | 7:09 | — | — | 7:08 | — | — | 7:08 | — | — | 7:07 | — | — | 7:07 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 26 | 27 | 27 | 26 | 26 | 26 | 26 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 26 | 26 | 26 |
Feels °C | 28 | 29 | 29 | 27 | 26 | 25 | 24 | 21 | 21 | 20 | 21 | 21 | 22 | 21 | 21 | 23 | 23 | 23 | 27 | 26 | 27 |
Swell 1 Height (m) Direction Period (s) | ENE 10 | ENE 9 | ENE 8 | ENE 8 | ENE 8 | S 13 | S 12 | E 16 | E 15 | E 15 | E 14 | E 14 | E 14 | E 14 | E 13 | E 13 | E 12 | ENE 12 | ENE 12 | SSW 11 | ENE 10 |
697 | 413 | 176 | 250 | 204 | 166 | 153 | 301 | 205 | 267 | 196 | 194 | 180 | 195 | 125 | 121 | 108 | 793 | 660 | 43 | 394 | |
Swell 2 Height (m) Direction Period (s) | S 14 | S 14 | S 14 | S 14 | S 13 | SSW 16 | SW 16 | SW 15 | SW 15 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 13 | SSW 13 | SSW 13 | SSW 12 | SSW 12 | SSW 12 | SW 16 | SSW 11 |
195 | 195 | 184 | 179 | 171 | 177 | 206 | 239 | 223 | 127 | 123 | 131 | 133 | 67 | 57 | 33 | 29 | 48 | 46 | 68 | 48 | |
Swell 3 Height (m) Direction Period (s) | SW 21 | SSW 20 | NNE 7 | SW 18 | SSW 18 | E 16 | E 15 | S 12 | S 12 | SSW 12 | S 11 | S 11 | N 9 | N 9 | SW 13 | SW 13 | SW 13 | SSE 9 | SSE 12 | S 14 | SSE 13 |
17 | 37 | 54 | 154 | 207 | 127 | 159 | 106 | 69 | 46 | 39 | 22 | 15 | 14 | 42 | 42 | 41 | 16 | 29 | 33 | 59 | |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | E 8 | ENE 8 | ENE 8 | E 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | — | — | ENE 11 | — |
— | — | — | — | — | 258 | 427 | 427 | 880 | 916 | 1108 | 1076 | 781 | 662 | 578 | 394 | 361 | — | — | 515 | — | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 0 | 5 | 5 | 42 | 48 | 47 | 55 | 61 | 111 | 132 | 141 | 57 | 57 | 59 | 55 | 16 | 50 | 16 | 5 | 5 | 16 |
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.










