Surf Forecasts:
Sandy Beach surf forecast from 26 Jul 2026:
- Best quality surf: Tuesday 28 Jul, 8PM (local time) - 10ft (3.0m), 13s period, ENE swell with cross-shore winds.
- Most powerful swell: Tuesday 28 Jul, 8PM (local time) - 10ft (3.0m), 13s period, ENE swell with 2,578 kJ wave energy.
- Next surfable swell (1★+): Tuesday 28 Jul, 8PM (local time) - 10ft (3.0m), 13s 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 Tuesday (Jul 28) at 8PM. The primary swell is predicted to be 3.0m and 13s period with a secondary swell of 0.7m and 14s. Another secondary swell of 0.7m and 9s is also forecast. The wind is predicted to be cross-shore as the swell arrives.
The most powerful waves expected at Sandy Beach in the next 16 days are 3.0m 13s and forecast to arrive on Tuesday (Jul 28) 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 1.0m 8s period and expected on Wednesday (Jul 29) at 8PM.
| Wave Type | Time (HST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 8PM (Tue 28th Jul) | 10ft (3.0m) 13s |
| Best Surf | 8PM (Tue 28th Jul) | 10ft (3.0m) 13s |
| Most Powerful | 8PM (Tue 28th Jul) | 10ft (3.0m) 13s |
Table - best surf conditions forecast for Sandy Beach over the next 16 days.
The Lowdown
G’day, I’m Rusty. Let’s talk about what’s cooking at Sandy Beach. This stretch is a beach and reef setup, exposed to the open ocean but the story over the next couple of weeks is mostly about messy wind and inconsistent quality. Water temps are sitting at about 80°, which is pretty much spot on for this time of year – nothing unusual there.
Look, straight up, the first recommendation doesn’t land until early on Wednesday the 29th of July. Before that, it’s a rough run of lumpy, onshore chop with gusty trades through Sunday the 26th and Monday the 27th. Not worth paddling out. Tuesday the 28th cleans up a bit with clean conditions and building swell, but still rated as marginal – not quite the goods.
Wednesday the 29th of July is easily the standout window. Early morning, we’ve got clean water with a light cross-offshore breeze from the NNE at just 6 mph. Swell is 8 ft from the ENE with a period of 10 seconds – solid, punchy groundswell with moderate wave energy (1580). That’s big enough to keep the beginners on the sand but sets up some proper waves for experienced surfers. Winds swing light N in the afternoon, still clean, with the swell dropping a touch to 7 ft but still carrying good energy (1014). It’s a short window of quality and Sandy Beach is a consistent spot, so you can expect it to be working. Crowds are a consideration here – they’re often around, so go early.
After Wednesday, it’s a long slow decline. Thursday the 30th drops off fast – messy cross-chop and dropping energy. Friday the 31st and Saturday the 1st of August are a write-off with strong trades and lumpy, choppy waves from 6 ft to 10 ft but poor quality right across. Sunday the 2nd through to Monday the 10th of August is one long stretch of cross-shore junk, onshore junk, or tiny weak waves. There are occasional windows with clean conditions but the swell quality just isn’t there for a good session. The combined energy drops right out, down into double digits by Friday the 7th, which means there’s hardly any push.
So the only real run at it is Wednesday the 29th of July. After that, the best bet is to wait and see if the forecasts shift. Sandy Beach tends to turn around pretty fast when the trades ease, so don’t write off the whole run just yet.
Stay sharp.
Rusty
Short Range ForecastSome drizzle, heaviest during Tue morning. Warm (max 26°C on Tue afternoon, min 24°C on Sun night). Winds decreasing (strong winds from the ENE on Sun afternoon, light winds from the N by Tue night). | Days 4-6 Weather SummaryMostly dry. Warm (max 27°C on Thu afternoon, min 25°C on Wed morning). Winds increasing (light winds from the NNE on Wed afternoon, strong winds from the ENE by Fri night). | ||||||||||||||||||||
Sunday 26 | Monday 27 | Tuesday 28 | Wednesday 29 | Thursday 30 | Friday 31 | Saturday 1 | |||||||||||||||
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) | SSW 16 | E 14 | E 14 | E 14 | E 13 | E 13 | E 13 | E 13 | ENE 12 | ENE 10 | NE 10 | ENE 9 | ENE 8 | ENE 8 | ENE 7 | E 8 | ENE 8 | E 8 | ENE 8 | ENE 8 | ENE 8 |
Wave Graph  | |||||||||||||||||||||
 kJ | 469 | 499 | 697 | 631 | 792 | 1543 | 1667 | 2364 | 1928 | 1385 | 782 | 243 | 314 | 222 | 327 | 459 | 528 | 1102 | 1156 | 1051 | 1152 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross | cross | cross | cross | cross | cross-off | cross-off | cross-off | cross-off | cross-off | on | cross | cross-on | cross-on | cross-on | cross | cross-on | cross-on | cross | cross-on |
High Tide | 1:55PM0.66m | 1:32AM0.20m | 2:28PM0.68m | 2:09AM0.22m | 2:58PM0.69m | 2:46AM0.24m | 3:28PM0.69m | 3:26AM0.26m | 3:57PM0.68m | 4:08AM0.30m | 4:25PM0.65m | 4:55AM0.33m | 4:53PM0.60m | ||||||||
Low Tide | 9:38PM0.11m | 7:06AM0.01m | 10:01PM0.09m | 7:44AM-0.00m | 10:25PM0.09m | 8:21AM0.00m | 10:49PM0.08m | 8:58AM0.02m | 11:13PM0.07m | 9:38AM0.05m | 11:37PM0.06m | 10:23AM0.11m | 00:02AM0.05m | ||||||||
 |  |  | | |  |  | | | | | | | | | | | | | | | |
 | 6:01 | — | — | 6:01 | — | — | 6:01 | — | — | 6:01 | — | — | 6:03 | — | — | 6:03 | — | — | 6:03 | — | — |
 | — | 7:12 | — | — | 7:12 | — | — | 7:10 | — | — | 7:10 | — | — | 7:09 | — | — | 7:09 | — | — | 7:08 | — |
mm | — | — | — | — | — | — | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 26 | 25 | 26 | 26 | 26 | 26 | 27 | 25 | 26 | 26 | 25 | 25 | 25 | 25 |
Feels °C | 21 | 21 | 21 | 22 | 23 | 24 | 26 | 25 | 24 | 29 | 29 | 29 | 28 | 28 | 24 | 23 | 23 | 21 | 21 | 21 | 21 |
Swell 1 Height (m) Direction Period (s) | SSW 16 | E 14 | E 14 | E 14 | E 13 | E 13 | E 13 | E 13 | ENE 12 | ENE 10 | NE 10 | ENE 9 | ENE 8 | ENE 8 | S 13 | S 12 | E 15 | SW 15 | SSW 14 | E 14 | E 14 |
| kJ | 469 | 499 | 697 | 631 | 792 | 1543 | 1667 | 2364 | 1928 | 1385 | 782 | 243 | 314 | 215 | 166 | 153 | 213 | 176 | 127 | 264 | 264 |
Swell 2 Height (m) Direction Period (s) | E 15 | SSW 16 | SSW 16 | SSW 15 | SSW 15 | SSW 14 | SSW 14 | S 14 | SSW 14 | S 14 | S 14 | N 7 | S 14 | S 13 | SSW 16 | E 15 | SW 15 | SSW 12 | S 12 | SSW 14 | SSW 14 |
| kJ | 348 | 341 | 333 | 292 | 222 | 213 | 143 | 179 | 195 | 195 | 195 | 68 | 181 | 222 | 177 | 161 | 239 | 47 | 42 | 123 | 133 |
Swell 3 Height (m) Direction Period (s) | S 11 | S 11 | SE 11 | SE 11 | S 11 | NNE 10 | SSE 10 | SSE 10 | NE 9 | SW 21 | SSW 20 | S 14 | SW 18 | SSW 18 | E 16 | SW 16 | S 12 | N 8 | S 15 | S 11 | S 11 |
| kJ | 21 | 20 | 5 | 4 | 9 | 36 | 10 | 10 | 37 | 17 | 37 | 184 | 154 | 207 | 130 | 206 | 106 | 5 | 5 | 22 | 23 |
Wind waves Height (m) Direction Period (s) | ENE 8 | ENE 7 | ENE 7 | ENE 7 | NE 7 | NNE 7 | NNE 9 | NNE 9 | — | — | — | — | — | — | ENE 7 | E 8 | ENE 8 | E 8 | ENE 8 | ENE 8 | ENE 8 |
| kJ | 382 | 397 | 334 | 282 | 248 | 111 | 216 | 151 | — | — | — | — | — | — | 327 | 459 | 528 | 1102 | 1156 | 1051 | 1152 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 55 | 59 | 47 | 47 | 47 | 5 | 5 | 50 | 5 | 0 | 0 | 5 | 5 | 14 | 47 | 55 | 57 | 57 | 132 | 113 | 57 |
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.
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