Surf Forecasts:
Sandtracks surf forecast from 13 Aug 2026:
- Most powerful swell: Sunday 16 Aug, 8AM (local time) - 15ft (4.5m), 10s period, E swell with 4,314 kJ wave energy.
Best Forecast Surf Conditions for Sandtracks this week:
The most powerful waves expected at Sandtracks in the next 16 days are 4.5m 10s and forecast to arrive on Sunday (Aug 16) at 8AM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.4m 12s period and expected on Sunday (Aug 16) at 8AM.
| Wave Type | Time (HST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 8AM (Sun 16th Aug) | 15ft (4.5m) 10s |
Table - best surf conditions forecast for Sandtracks over the next 16 days.
The Lowdown
Alright, Rusty here again, this time in feet and miles.
So, for Sandtracks, it’s a rough patch. The water’s at 27°, right around the usual for this time of year, so that’s fine.
The first chance to get wet is on Wednesday, 12 August. We’re looking at a south swell running 3ft to 4ft, with a super long 18-second period – that’s top-shelf groundswell, the kind that draws you in. The combined energy is moderate, reading 1043 to 1157. But the wind is the enemy here: a fresh 30 km/h cross-shore from the ENE, just whipping the surface into a lumpy cross-chop. It’s going to be a messy, blown-out session. Real shame, because that long period would be magic on a clean day.
From Thursday, 13 August, it’s a long, grim slide. The swell hangs around 2ft to 4ft, but the wind stays on it – a steady fresh cross-shore from the ENE, often at 30 km/h or more. By Saturday, 15 August, the swell actually jumps to 8ft to 10ft from the east, with energy hitting 1455 and then 2017, but it’s accompanied by a strong breeze, making it a messy, cross-shore-chop nightmare. That’s big-wave territory, but with the wind howling, it’s unsurfable. On Sunday, 16 August, it gets even uglier – 13ft of east swell (3524 energy) with a near gale and a risk of thunderstorms. That’s a hard pass.
The second week, from the 17th of August onward, the swell drops to 2ft to 4ft, with periods from 7 to 18 seconds, but the wind never gives up. It’s a long stretch of poor quality. The only real highlight is that Wednesday morning, and even that’s a fight. If you’re into kiting, the strong, steady cross-shore winds and size on the 15th and 16th might be more interesting than a paddler’s surf.
Bottom line: there’s nothing clean or consistent in this 16-day window. The one day with surf is a mess. Sometimes it’s like that.
Rusty.
Short Range ForecastMostly dry. Warm (max 28°C on Wed afternoon, min 25°C on Wed night). Mainly fresh winds. | Days 4-6 Weather SummaryHeavy rain (total 33mm), heaviest during Sun morning. Warm (max 28°C on Sat afternoon, min 24°C on Sun morning). Winds decreasing (gales from the ENE on Sun morning, light winds from the E by Mon morning). | ||||||||||||||||||||
Wednesday 12 | Thursday 13 | Friday 14 | Saturday 15 | Sunday 16 | Monday 17 | Tuesday 18 | |||||||||||||||
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) | S 18 | S 18 | S 16 | S 16 | S 15 | S 15 | S 14 | S 14 | ENE 8 | E 10 | E 10 | E 10 | E 10 | E 9 | E 9 | S 14 | S 14 | S 13 | E 7 | E 7 | S 13 |
Wave Graph  | |||||||||||||||||||||
 kJ | 627 | 741 | 1029 | 858 | 763 | 636 | 496 | 496 | 450 | 1146 | 1734 | 1655 | 3060 | 1397 | 432 | 412 | 329 | 222 | 168 | 138 | 117 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross | cross-off | cross | cross | cross | cross | cross | cross-off | cross | cross | cross-off | cross | cross-on | cross-on | cross | cross | cross | cross | cross | cross |
High Tide | 3:59PM0.80m | 4:08AM0.41m | 4:32PM0.75m | 4:55AM0.46m | 5:02PM0.68m | 5:41AM0.50m | 5:29PM0.60m | 6:30AM0.53m | 5:53PM0.51m | 7:23AM0.54m | 6:10PM0.44m | 8:25AM0.55m | 6:13PM0.37m | ||||||||
Low Tide | 8:53AM0.02m | 10:50PM0.10m | 9:42AM0.06m | 11:15PM0.09m | 10:30AM0.11m | 11:40PM0.09m | 11:19AM0.18m | 00:04AM0.09m | 12:13PM0.25m | 00:28AM0.10m | 1:18PM0.31m | 00:54AM0.11m | 2:59PM0.34m | 1:23AM0.13m | |||||||
 | |  | | | | | | | | |  |  |  |  | | |  | | | | |
 | 6:09 | — | — | 6:09 | — | — | 6:09 | — | — | 6:09 | — | — | 6:09 | — | — | 6:11 | — | — | 6:11 | — | — |
 | — | 7:04 | — | — | 7:02 | — | — | 7:02 | — | — | 7:01 | — | — | 7:00 | — | — | 7:00 | — | — | 7:00 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | 1 | 19 | 6 | 6 | — | 1 | — | — | — | — |
Temp °C | 27 | 28 | 25 | 28 | 28 | 25 | 27 | 28 | 26 | 27 | 28 | 26 | 25 | 27 | 27 | 28 | 27 | 25 | 26 | 27 | 25 |
Feels °C | 25 | 25 | 24 | 25 | 25 | 23 | 24 | 25 | 24 | 24 | 25 | 23 | 21 | 25 | 26 | 30 | 26 | 24 | 24 | 25 | 25 |
Swell 1 Height (m) Direction Period (s) | S 18 | S 18 | S 16 | S 16 | S 15 | S 15 | S 14 | S 14 | S 14 | S 13 | S 13 | S 13 | S 16 | S 13 | E 9 | S 14 | E 8 | S 13 | S 13 | S 13 | S 13 |
| kJ | 627 | 741 | 1029 | 858 | 763 | 636 | 496 | 496 | 377 | 280 | 219 | 225 | 427 | 163 | 432 | 412 | 201 | 222 | 168 | 119 | 117 |
Swell 2 Height (m) Direction Period (s) | SSW 13 | SSW 13 | WNW 12 | WNW 12 | WNW 12 | WNW 11 | WNW 12 | WNW 12 | W 11 | W 11 | WNW 13 | S 18 | WNW 12 | S 16 | SSE 7 | SSE 6 | S 14 | SSE 6 | SSW 17 | SSW 18 | SSE 9 |
| kJ | 289 | 289 | 28 | 27 | 27 | 25 | 27 | 27 | 21 | 22 | 34 | 99 | 48 | 183 | 114 | 25 | 329 | 6 | 115 | 123 | 30 |
Swell 3 Height (m) Direction Period (s) | WNW 13 | WNW 12 | SSE 9 | SSE 9 | SSE 9 | SW 18 | SSE 11 | SSW 18 | SSW 17 | SSW 17 | S 19 | WNW 13 | SSW 19 | WNW 12 | S 14 | SSW 5 | SSE 6 | WNW 11 | SE 8 | SSE 10 | SW 18 |
| kJ | 55 | 28 | 8 | 8 | 8 | 13 | 13 | 30 | 29 | 29 | 64 | 56 | 37 | 27 | 315 | 17 | 20 | 24 | 18 | 36 | 79 |
Wind waves Height (m) Direction Period (s) | E 7 | E 7 | E 6 | E 7 | ENE 7 | E 8 | E 8 | E 8 | ENE 8 | E 10 | E 10 | E 10 | E 10 | E 9 | — | E 8 | ENE 8 | E 7 | E 7 | E 7 | E 7 |
| kJ | 127 | 127 | 120 | 124 | 175 | 319 | 294 | 365 | 450 | 1146 | 1734 | 1655 | 3060 | 1397 | — | 295 | 220 | 134 | 168 | 138 | 106 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 10 | 146 | 10 | 11 | 146 | 12 | 26 | 146 | 26 | 181 | 181 | 181 | 190 | 78 | 27 | 10 | 20 | 10 | 10 | 11 | 10 |
Best forecast wave conditions in Oahu | |||||||||||||||||||||
Best forecast wave conditions in United States | |||||||||||||||||||||
Header Global | |||||||||||||||||||||
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The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Sandtracks 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 Sandtracks Surf forecast
The above surf forecast table for Sandtracks provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Sandtracks can be found by selecting the local surf guide option on the grey menu. Our Sandtracks 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 (Sandtracks) 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 Sandtracks 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.
Sandtracks is 3 km (2 miles) from 'Ewa Beach. If you plan a vacation in Oahu, look for hotels and other accommodation in 'Ewa Beach. 'Ewa Beach has rooms for a wide range of budgets as well as car hire and transport links.
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