Surf Forecasts:
Sandy Beach surf forecast from 22 Jul 2026:
- Most powerful swell: Monday 27 Jul, 11PM (local time) - 7ft (2.2m), 14s period, ENE swell with 1,883 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 2.2m 14s and forecast to arrive on Monday (Jul 27) at 11PM. 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 11s period and expected on Tuesday (Jul 28) at 8PM.
| Wave Type | Time (HST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 11PM (Mon 27th Jul) | 7ft (2.2m) 14s |
Table - best surf conditions forecast for Sandy Beach over the next 16 days.
The Lowdown
G'day, I'm Rusty. Let's have a look at the surf ahead for Sandy Beach.
Right off the bat, I gotta be straight with you – the first week or so is looking pretty ordinary. There's a real dry spell here. The first few days are all poor surf conditions with moderate to strong cross-shore winds, so there's not much point paddling out. The combined wave energy is moderate (426) on Tuesday afternoon, but the wind is just ruining it. The water temp is a warm 80°, which is about average for this time of year.
The real action doesn't start to show until we get towards the end of July. Thursday the 30th is the standout window. The morning is still a bit ordinary with a 6ft swell from the ENE, but it's the afternoon that has me excited. The wind swings light and cross-off from the NNE, and the forecast calls for very good surf conditions. The swell drops to a clean 6ft from the ENE, with just a gentle breeze. The combined energy is moderate (835), and the period is 10 seconds – a nice, workable groundswell. This is the best on offer, no question. It's a beach-and-reef setup, and that offshore wind will make it clean. Just be aware that crowds are often here, so you might have some company.
After that, it's back to the doldrums. Friday the 31st through to Wednesday the 5th of August is more of the same: poor surf, lumpy conditions, and cross winds. The swell sizes bounce around, but the wind keeps it messy. The combined energy stays low to moderate (341 to 575), and the periods are short, around 7 to 8 seconds. There's a brief moment on Tuesday the 4th morning with a 2ft swell and a gentle breeze, but it's only marginal.
So, to wrap it up: the whole first week is a write-off. Thursday the 30th afternoon is your one real shot at a clean session. After that, it's a long gap of poor conditions right through to the end of the forecast. It's a tough run for Sandy Beach, but the finish line on the 30th is worth waiting for. Keep an eye on the forecasts, things can always change.
Rusty.
Short Range ForecastLight rain (total 2mm), mostly falling on Thu morning. Warm (max 25°C on Tue afternoon, min 24°C on Wed night). Mainly strong winds. | Days 5-7 Weather SummaryLight rain (total 2mm), mostly falling on Sat night. Warm (max 25°C on Fri afternoon, min 24°C on Fri night). Mainly strong winds. | |||||||||||||||||||
Tue 21 | Wednesday 22 | Thursday 23 | Friday 24 | Saturday 25 | Sunday 26 | Monday 27 | ||||||||||||||
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 14 | S 13 | SSW 24 | SSW 23 | SSW 22 | ENE 7 | ENE 7 | SSW 18 | ENE 7 | SSW 17 | ENE 7 | ENE 8 | SSW 18 | ENE 8 | E 15 | E 16 | E 15 | E 14 | E 14 | E 14 |
Wave Graph  | ||||||||||||||||||||
 kJ | 311 | 277 | 317 | 426 | 363 | 412 | 395 | 464 | 358 | 340 | 469 | 410 | 572 | 547 | 555 | 817 | 979 | 915 | 894 | 1249 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross-on | cross-on | cross | cross-on | cross-on | cross | cross-on | cross | cross | cross-on | cross | cross | cross-on | cross | cross | cross-on | cross | cross | cross |
High Tide | 7:46PM0.29m | 11:08AM0.55m | 8:50PM0.23m | 11:59AM0.59m | 10:38PM0.19m | 12:42PM0.62m | 11:56PM0.19m | 1:20PM0.64m | 00:50AM0.19m | 1:55PM0.66m | 1:32AM0.20m | 2:28PM0.68m | 2:09AM0.22m | |||||||
Low Tide | 5:25PM0.28m | 3:12AM0.05m | 7:38PM0.23m | 3:57AM0.05m | 8:24PM0.18m | 8:50PM0.15m | 5:38AM0.03m | 9:14PM0.12m | 6:24AM0.02m | 9:38PM0.11m | 7:06AM0.01m | 10:01PM0.09m | ||||||||
 |  |  | | |  | | | | | | | |  | | | | | | | |
 | — | — | 6:00 | — | — | 6:00 | — | — | 6:00 | — | — | 6:01 | — | — | 6:01 | — | — | 6:01 | — | — |
 | 7:14 | — | — | 7:13 | — | — | 7:13 | — | — | 7:13 | — | — | 7:12 | — | — | 7:12 | — | — | 7:12 | — |
mm | — | — | — | — | — | 1 | — | — | 1 | — | — | — | — | 1 | 1 | — | — | — | — | — |
Temp °C | 25 | 25 | 25 | 25 | 24 | 25 | 25 | 24 | 24 | 25 | 24 | 25 | 25 | 25 | 24 | 24 | 24 | 24 | 24 | 24 |
Feels °C | 24 | 24 | 23 | 22 | 21 | 21 | 21 | 20 | 21 | 22 | 20 | 22 | 22 | 22 | 20 | 21 | 21 | 22 | 21 | 23 |
Swell 1 Height (m) Direction Period (s) | NE 7 | ENE 7 | S 13 | E 11 | S 13 | SSW 20 | SSW 20 | SSW 18 | SSW 18 | SSW 17 | SSW 16 | SSW 19 | SSW 18 | SSW 18 | E 15 | E 16 | E 15 | E 14 | E 14 | E 14 |
| kJ | 69 | 120 | 215 | 123 | 157 | 412 | 395 | 464 | 329 | 340 | 232 | 391 | 572 | 547 | 555 | 817 | 979 | 915 | 894 | 1249 |
Swell 2 Height (m) Direction Period (s) | S 14 | S 13 | E 12 | SSW 23 | SSW 22 | S 12 | S 11 | S 11 | S 12 | S 12 | S 20 | SSW 16 | S 11 | E 16 | SSW 16 | SSW 16 | SSW 16 | SSW 15 | SSW 15 | SSW 14 |
| kJ | 311 | 277 | 138 | 426 | 363 | 97 | 125 | 56 | 143 | 102 | 296 | 223 | 64 | 172 | 469 | 341 | 333 | 288 | 222 | 213 |
Swell 3 Height (m) Direction Period (s) | SW 16 | E 13 | SSW 24 | S 13 | SW 18 | SSW 16 | SW 16 | S 13 | SSW 16 | S 21 | S 12 | S 11 | E 13 | S 11 | SW 10 | SSW 10 | SW 9 | SW 9 | SW 9 | SW 9 |
| kJ | 67 | 121 | 317 | 125 | 150 | 100 | 127 | 85 | 94 | 231 | 103 | 63 | 54 | 37 | 26 | 56 | 21 | 21 | 13 | 13 |
Wind waves Height (m) Direction Period (s) | E 7 | — | ENE 7 | ENE 7 | ENE 6 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 7 | ENE 8 | NE 8 | NE 8 |
| kJ | 46 | — | 145 | 166 | 179 | 384 | 350 | 448 | 358 | 316 | 469 | 410 | 425 | 501 | 403 | 314 | 362 | 264 | 276 | 192 |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 16 | 16 | 49 | 47 | 47 | 55 | 57 | 55 | 55 | 61 | 48 | 55 | 55 | 16 | 47 | 110 | 47 | 20 | 47 | 16 |
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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