Surf Forecasts:
Sandy Beach surf forecast from 27 Aug 2026:
- Most powerful swell: Thursday 27 Aug, 11AM (local time) - 3.5ft (1.1m), 17s period, S swell with 716 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 1.1m 17s and forecast to arrive on Thursday (Aug 27) at 11AM. 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 17s period and expected on Saturday (Aug 29) at 11PM.
| Wave Type | Time (HST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 11AM (Thu 27th Aug) | 3.5ft (1.1m) 17s |
Table - best surf conditions forecast for Sandy Beach over the next 16 days.
The Lowdown
Alright, Rusty here. Let’s break down what we’ve got coming up. Gotta be straight with you—there’s a big stretch of nothing before anything even looks surfable.
Starting right now on August 27th at Sandy Beach, there’s zero to ride. That kicks off a solid 8-day gap of poor conditions stretching all the way to the morning of September 4th. The wind is screaming out of the ENE at 22 to 25 mph, making the water a lumpy, cross-shore mess. The swell is small, between about 3 and 6 ft, and the period is short (6-8 seconds), so the waves are weak and choppy. Wave energy stays in the moderate range (480-898). Direction shifts from S to ENE, but none of it works.
The first sign of life pops up on the morning of September 4th. The score is marginal, a 1 out of 10. You’ll see a 4 ft E swell with an 11-second period, but it’s still a moderate cross-shore breeze from the NE at 15 mph. It’s not good, just slightly less awful. Energy is still weak at 511.
Your best bet in this whole 16-day run shows up on Wednesday, September 9th. On the morning of the 9th, Sandy Beach sees a 5 ft ENE swell (period 10 seconds) with a cross-offshore breeze out of the NNE at 12 mph. That’s clean. The wave energy bumps to a moderate 717, and the score hits a 2—the only real standout. For intermediate surfers, it’s barely passable.
After that, it’s back to cross-on shore crud from the 10th on, with 5-5 ft of swell but onshore winds destroying any shape.
Bottom line: not much for a paddle surfer here. Water temps are normal for this time of year. If you’ve got a kiteboard, those strong ENE trades over the beach setup might be more interesting. Otherwise, save your energy.
This is Rusty signing off.
Short Range ForecastMostly dry. Warm (max 26°C on Fri afternoon, min 25°C on Wed night). Mainly strong winds. | Days 5-7 Weather SummaryLight rain (total 3mm), mostly falling on Sun night. Warm (max 26°C on Sun afternoon, min 25°C on Sat night). Mainly fresh winds. | ||||||||||||||||||
Thursday 27 | Friday 28 | Saturday 29 | Sunday 30 | Monday 31 | Tuesday 1 | ||||||||||||||
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) | S 19 | S 17 | S 16 | S 16 | S 14 | S 14 | S 13 | ENE 6 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 8 | ENE 8 | ENE 9 | NE 8 | ENE 8 |
Wave Graph  | |||||||||||||||||||
 kJ | 351 | 716 | 427 | 482 | 260 | 329 | 229 | 233 | 247 | 326 | 235 | 217 | 257 | 230 | 356 | 365 | 402 | 354 | 343 |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross | cross | cross-on | cross | cross | cross-on | cross | cross | cross-on | cross-on | cross | cross-on | cross | cross | cross | cross | cross | cross |
High Tide | 2:30AM0.34m | 2:53PM0.66m | 3:07AM0.39m | 3:21PM0.62m | 3:47AM0.44m | 3:48PM0.58m | 4:31AM0.49m | 4:17PM0.51m | 5:19AM0.53m | 4:46PM0.43m | 6:14AM0.56m | 5:18PM0.36m | |||||||
Low Tide | 9:29PM0.09m | 8:15AM0.04m | 9:49PM0.07m | 8:57AM0.06m | 10:10PM0.06m | 9:43AM0.10m | 10:32PM0.05m | 10:34AM0.14m | 10:56PM0.04m | 11:35AM0.19m | 11:23PM0.04m | 12:53PM0.23m | 11:56PM0.04m | ||||||
 |  | | | | |  | | | | | |  | | | |  | | | |
 | — | 6:11 | — | — | 6:13 | — | — | 6:13 | — | — | 6:13 | — | — | 6:13 | — | — | 6:13 | — | — |
 | 6:52 | — | 6:51 | — | — | 6:50 | — | — | 6:49 | — | — | 6:47 | — | — | 6:46 | — | — | 6:46 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | 1 | — | — | 1 | 1 | — | 1 |
Temp °C | 25 | 25 | 25 | 25 | 25 | 26 | 25 | 25 | 26 | 25 | 25 | 26 | 25 | 26 | 26 | 26 | 26 | 26 | 26 |
Feels °C | 21 | 22 | 22 | 22 | 22 | 23 | 21 | 21 | 23 | 22 | 22 | 23 | 22 | 24 | 24 | 26 | 26 | 25 | 25 |
Swell 1 Height (m) Direction Period (s) | S 19 | S 17 | S 16 | S 16 | S 14 | S 14 | S 13 | E 13 | E 12 | S 12 | SSW 16 | S 12 | SSW 15 | SSW 15 | SSW 14 | ENE 8 | ENE 9 | S 18 | S 17 |
| kJ | 351 | 716 | 427 | 482 | 260 | 329 | 229 | 126 | 110 | 102 | 171 | 100 | 199 | 144 | 138 | 365 | 402 | 311 | 277 |
Swell 2 Height (m) Direction Period (s) | SSW 13 | N 8 | SSW 12 | NNE 7 | E 16 | E 15 | E 14 | S 13 | S 13 | E 12 | E 11 | SSW 16 | S 11 | S 11 | S 11 | S 10 | SSW 18 | S 12 | S 10 |
| kJ | 137 | 6 | 46 | 10 | 78 | 109 | 146 | 85 | 89 | 106 | 65 | 162 | 59 | 57 | 57 | 50 | 329 | 75 | 35 |
Swell 3 Height (m) Direction Period (s) | SSW 16 | W 9 | NNE 8 | E 17 | SSW 11 | SSW 19 | SW 19 | S 13 | S 12 | SSW 17 | SSW 12 | E 11 | ENE 10 | E 10 | SSW 19 | S 19 | S 10 | SW 14 | SW 14 |
| kJ | 50 | 7 | 7 | 24 | 22 | 36 | 56 | 89 | 75 | 186 | 46 | 61 | 37 | 49 | 122 | 192 | 47 | 51 | 51 |
Wind waves Height (m) Direction Period (s) | E 6 | E 6 | ENE 6 | ENE 6 | ENE 6 | ENE 6 | ENE 6 | ENE 6 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 8 | NE 8 | — | NE 8 | ENE 8 |
| kJ | 213 | 182 | 144 | 155 | 127 | 182 | 201 | 233 | 247 | 326 | 235 | 217 | 257 | 230 | 356 | 274 | — | 354 | 343 |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 48 | 59 | 50 | 47 | 47 | 59 | 49 | 55 | 57 | 49 | 55 | 55 | 47 | 48 | 110 | 16 | 47 | 49 | 47 |
Best forecast wave conditions in Oahu | |||||||||||||||||||
Best forecast wave conditions in United States | |||||||||||||||||||
Header Global | |||||||||||||||||||
- Map Icons:
Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
FREE! Surf-Forecast.com widget for your website
The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Sandy Beach surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.
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.
Nearest