
Surf Forecasts:
Sandy Beach surf forecast from 8 Jul 2026:
- Most powerful swell: Monday 13 Jul, 2AM (local time) - 7.5ft (2.3m), 8s period, ENE swell with 574 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 2.3m 8s and forecast to arrive on Monday (Jul 13) at 2AM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.9m 17s period and expected on Sunday (Jul 12) at 5AM.
| Wave Type | Time (HST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 2AM (Mon 13th Jul) | 7.5ft (2.3m) 8s |
Table - best surf conditions forecast for Sandy Beach over the next 16 days.
Alright folks, Rusty here. Let’s be straight with you – this outlook is a tough one to write. We’ve got a 16-day window, but honestly, it’s a flat, windy mess for most of it. The only real spot on the radar is Sandy Beach, but it’s a long wait for anything even remotely rideable.
Right now, and for the next couple of weeks, Sandy Beach is locked into a strong, persistent ENE wind that’s just tearing the place up. The swell is coming from the same direction, so it’s cross and cross-onshore all day, every day. We’re looking at chest to head-high waves, around 7 ft, with a short, weak period of only 7 to 8 seconds. The combined energy is sitting in the moderate range, but with that wind, it’s all just lumpy, choppy, and messy. There’s no quality to be had. Water temps are sitting at a warm 79°, which is about average for the time of year, but you won’t be enjoying it with that wind in your face.
This pattern holds steady right through to the 20th of July. It’s a full 12 days of "poor surf conditions" with zero recommendations. A real bummer.
Then, things finally get interesting, but it’s a long way off. On Monday the 21st of July, we see a shift. The wind backs off a bit to a moderate 15 mph from the NE, and more importantly, the swell direction swings around to the S and then the E. The period jumps up to a very long 15 and 16 seconds. This is a proper groundswell. The swell height is smaller, around 3 ft to 4 ft, but the energy is strong. The combined energy reading hits 1424 and 1438 (strong wave energy).
Now, here’s the thing. That long period groundswell is fantastic for points and reefs, but at a beach break like Sandy Beach, it can be a bit tricky. The waves might break a little too straight, and the long gaps between sets make paddling out a bit of a gamble. Plus, the wind is still cross, so there will be a bit of a chop. The forecast calls it "marginal," and I’d agree. It’s not a standout, but it’s the only pulse of real energy in the whole 16-day run. If you’re desperate and have a high-performance board, it might be worth a look on the 21st, but don't expect perfection.
The swell fades again after that, dropping back to small, weak, and windy for the rest of the week.
So, the honest truth? There is no standout session in this forecast. The only flicker of life is that late-arriving groundswell around the 21st of July, but it’s a long way off and comes with its own caveats. For now, save your wax and wait for a better forecast.
Rusty.
Short Range ForecastSome drizzle, heaviest during Wed night. Warm (max 25°C on Wed morning, min 24°C on Wed morning). Mainly strong winds. | Days 4-6 Weather SummaryMostly dry. Warm (max 25°C on Sun afternoon, min 24°C on Sat morning). Mainly strong winds. | ||||||||||||||||||||
Wednesday 8 | Thursday 9 | Friday 10 | Saturday 11 | Sunday 12 | Monday 13 | Tuesday 14 | |||||||||||||||
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 7 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 8 | ENE 8 | ENE 8 | ENE 7 | ENE 7 | ENE 7 | ENE 7 |
Wave Graph | |||||||||||||||||||||
526 | 495 | 525 | 383 | 336 | 415 | 334 | 325 | 417 | 456 | 387 | 325 | 432 | 444 | 574 | 400 | 336 | 355 | 417 | 319 | 279 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross | cross-on | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross-on |
High Tide | 10:53AM0.55m | 9:06PM0.28m | 11:46AM0.64m | 10:28PM0.22m | 12:36PM0.72m | 11:48PM0.19m | 1:24PM0.77m | 00:55AM0.18m | 2:10PM0.81m | 1:53AM0.19m | 2:55PM0.82m | 2:47AM0.21m | 3:38PM0.81m | 3:40AM0.23m | |||||||
Low Tide | 6:02PM0.24m | 4:05AM-0.03m | 7:30PM0.18m | 4:54AM-0.05m | 8:27PM0.12m | 5:46AM-0.07m | 9:12PM0.08m | 6:39AM-0.08m | 9:53PM0.05m | 7:31AM-0.09m | 10:32PM0.03m | 8:22AM-0.08m | 11:09PM0.02m | ||||||||
5:54 | — | — | 5:54 | — | — | 5:54 | — | — | 5:54 | — | — | 5:56 | — | — | 5:56 | — | — | 5:56 | — | — | |
— | 7:15 | — | — | 7:15 | — | — | 7:15 | — | — | 7:15 | — | — | 7:15 | — | — | 7:15 | — | — | 7:15 | — | |
mm | — | — | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 25 | 25 | 24 | 25 | 25 | 24 | 25 | 25 | 24 | 24 | 24 | 24 | 24 | 25 | 24 | 24 | 24 | 24 | 25 | 25 | 24 |
Feels °C | 22 | 21 | 20 | 22 | 22 | 21 | 22 | 22 | 21 | 20 | 20 | 21 | 21 | 22 | 20 | 20 | 21 | 21 | 23 | 21 | 21 |
Swell 1 Height (m) Direction Period (s) | SSW 14 | SSW 13 | S 13 | S 12 | S 12 | S 12 | S 12 | SSW 11 | SW 19 | SSW 18 | SW 18 | SW 17 | SW 16 | SW 16 | SW 16 | SW 15 | SSW 15 | SW 14 | SW 14 | SW 14 | W 15 |
189 | 187 | 125 | 112 | 110 | 75 | 71 | 42 | 184 | 221 | 316 | 309 | 376 | 367 | 353 | 326 | 272 | 208 | 191 | 186 | 221 | |
Swell 2 Height (m) Direction Period (s) | SE 9 | SE 8 | SE 8 | SSE 8 | W 14 | W 13 | W 13 | SW 21 | S 12 | W 14 | W 13 | W 13 | S 11 | SSE 12 | SSE 12 | SSE 12 | W 18 | W 18 | W 16 | W 16 | SSW 13 |
3 | 3 | 3 | 6 | 15 | 13 | 13 | 109 | 42 | 63 | 54 | 54 | 22 | 48 | 28 | 27 | 96 | 150 | 181 | 188 | 111 | |
Swell 3 Height (m) Direction Period (s) | W 18 | S 18 | W 15 | S 16 | SSE 8 | W 16 | SSW 21 | W 13 | W 13 | S 12 | S 12 | S 11 | W 12 | W 12 | W 12 | W 12 | SSE 11 | SW 18 | SSW 19 | SW 19 | SSW 17 |
6 | 6 | 17 | 21 | 6 | 20 | 45 | 29 | 55 | 44 | 44 | 22 | 27 | 26 | 26 | 26 | 25 | 82 | 146 | 94 | 197 | |
Wind waves Height (m) Direction Period (s) | ENE 7 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 8 | ENE 8 | ENE 8 | ENE 7 | ENE 7 | ENE 7 | ENE 7 |
526 | 495 | 525 | 383 | 336 | 415 | 334 | 325 | 417 | 456 | 387 | 325 | 432 | 444 | 574 | 400 | 336 | 355 | 417 | 319 | 279 | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 55 | 110 | 55 | 55 | 55 | 50 | 47 | 57 | 55 | 55 | 55 | 47 | 55 | 55 | 55 | 48 | 55 | 48 | 47 | 50 | 47 |
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.










