Surf Forecasts:
Sandy Beach surf forecast from 19 Jul 2026:
- Most powerful swell: Saturday 25 Jul, 8PM (local time) - 3.5ft (1.0m), 18s period, SSW swell with 662 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 1.0m 18s and forecast to arrive on Saturday (Jul 25) at 8PM. 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 13s period and expected on Saturday (Jul 18) at 8PM.
| Wave Type | Time (HST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 8PM (Sat 25th Jul) | 3.5ft (1.0m) 18s |
Table - best surf conditions forecast for Sandy Beach over the next 16 days.
The Lowdown
Alright, Rusty here, giving you the rundown for Sandy Beach. To be straight up, it's a pretty grim outlook for the next 16 days. We're looking at a long stretch of time where you'll be better off doing anything else.
From the get-go, starting Saturday, July 18th, and running all the way through to Thursday, July 30th, it's pretty much a total loss. There's wave energy, sure, but that constant cross-shore wind out of the ENE at 25 mph and stronger is just shredding the surface. It's creating a lumpy, messy cross-chop that makes any kind of ride impossible. The swell is mostly short-period windswell, so it lacks any real punch or shape. It's frustrating because the ocean has some size, but the wind completely ruins it.
Right at the tail end of the period, on Sunday, July 26th, we get a tiny glimmer. A long-period groundswell from the East starts to push in with a lot of energy. The wind, while still cross-shore, drops to a more manageable 16 mph. It's still not clean, but it's the only time in the whole 16 days where the conditions are even described as "marginal" rather than "poor." The water temp is about 79°F, which is normal for this time of year.
Honestly, this is a tough one. There's a massive gap of over a week where you can't even think about it. If you absolutely have to get wet, keep an eye on that Sunday the 26th, but don't expect much. The wind pattern is just too dominant here for the rest of the window.
Rusty.
Short Range ForecastSome drizzle, heaviest during Tue morning. Warm (max 26°C on Sat afternoon, min 24°C on Sat night). Mainly strong winds. | Days 5-7 Weather SummaryMostly dry. Warm (max 25°C on Tue afternoon, min 24°C on Tue night). Mainly strong winds. | |||||||||||||||||||
Sat 18 | Sunday 19 | Monday 20 | Tuesday 21 | Wednesday 22 | Thursday 23 | Friday 24 | ||||||||||||||
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 6 | ENE 8 | S 16 | S 15 | S 14 | S 14 | S 13 | ENE 7 | SSW 23 | ENE 7 | SSW 20 | SSW 20 | ENE 7 | ENE 7 | ENE 7 | ENE 8 |
Wave Graph  | ||||||||||||||||||||
 kJ | 385 | 416 | 302 | 250 | 160 | 226 | 321 | 339 | 329 | 307 | 277 | 138 | 426 | 363 | 412 | 395 | 563 | 376 | 512 | 481 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross | cross | cross | cross-on | cross | cross | cross | cross-on | cross | cross | cross | cross | cross-on | cross | cross | cross-on | cross | cross | cross |
High Tide | 6:10PM0.55m | 7:46AM0.40m | 6:42PM0.45m | 8:59AM0.45m | 7:13PM0.37m | 10:08AM0.51m | 7:46PM0.29m | 11:08AM0.55m | 8:50PM0.23m | 11:59AM0.59m | 10:38PM0.19m | 12:42PM0.62m | 11:56PM0.19m | |||||||
Low Tide | 1:26AM0.03m | 1:10PM0.23m | 1:58AM0.03m | 2:57PM0.28m | 2:33AM0.04m | 5:25PM0.28m | 3:12AM0.05m | 7:38PM0.23m | 3:57AM0.05m | 8:24PM0.18m | 8:50PM0.15m | |||||||||
 |  | | | | | | |  | |  |  | | | | | | | | | |
 | — | — | 5:58 | — | — | 5:58 | — | — | 5:58 | — | — | 6:00 | — | — | 6:00 | — | — | 6:00 | — | — |
 | 7:15 | — | — | 7:14 | — | — | 7:14 | — | — | 7:14 | — | — | 7:13 | — | — | 7:13 | — | — | 7:13 | — |
mm | — | — | — | — | — | — | — | — | 1 | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 26 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 |
Feels °C | 22 | 22 | 22 | 22 | 23 | 23 | 23 | 23 | 24 | 23 | 23 | 22 | 22 | 22 | 21 | 21 | 22 | 21 | 21 | 21 |
Swell 1 Height (m) Direction Period (s) | SSW 14 | S 12 | SSW 13 | SSW 13 | SSW 12 | S 14 | S 16 | S 15 | S 14 | S 14 | S 13 | E 12 | E 11 | E 12 | SSW 20 | SSW 20 | SSW 18 | SSW 18 | SSW 17 | SSW 16 |
| kJ | 158 | 112 | 93 | 95 | 44 | 142 | 321 | 339 | 329 | 307 | 277 | 138 | 123 | 153 | 412 | 395 | 464 | 329 | 433 | 232 |
Swell 2 Height (m) Direction Period (s) | WNW 13 | W 12 | S 19 | S 18 | S 18 | S 16 | SW 18 | SW 16 | SW 17 | SW 16 | E 13 | S 13 | SSW 23 | S 13 | S 12 | S 11 | S 11 | S 12 | S 12 | S 20 |
| kJ | 56 | 28 | 66 | 106 | 97 | 135 | 81 | 69 | 72 | 67 | 121 | 128 | 426 | 157 | 97 | 89 | 56 | 105 | 71 | 296 |
Swell 3 Height (m) Direction Period (s) | SSE 9 | SSE 9 | SSE 6 | NNE 8 | NE 8 | SW 18 | W 12 | E 12 | E 12 | E 11 | SW 15 | S 11 | S 13 | SSW 22 | SSW 16 | SW 16 | S 13 | SSW 15 | SSW 21 | S 12 |
| kJ | 8 | 7 | 6 | 12 | 15 | 83 | 11 | 12 | 25 | 39 | 60 | 57 | 125 | 363 | 99 | 127 | 85 | 89 | 153 | 69 |
Wind waves Height (m) Direction Period (s) | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 6 | ENE 8 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | E 6 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 8 |
| kJ | 385 | 416 | 302 | 250 | 160 | 226 | 228 | 173 | 128 | 120 | 227 | 124 | 166 | 316 | 334 | 285 | 563 | 376 | 512 | 481 |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 57 | 50 | 47 | 49 | 17 | 47 | 55 | 16 | 47 | 48 | 47 | 47 | 48 | 48 | 55 | 57 | 55 | 55 | 57 | 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