Surf Forecasts:
Sandy Beach surf forecast from 8 Jul 2026:
- Most powerful swell: Wednesday 8 Jul, 8PM (local time) - 7.5ft (2.3m), 8s period, ENE swell with 604 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 Wednesday (Jul 08) 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 0.9m 17s period and expected on Sunday (Jul 12) at 8AM.
| Wave Type | Time (HST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 8PM (Wed 8th Jul) | 7.5ft (2.3m) 8s |
Table - best surf conditions forecast for Sandy Beach over the next 16 days.
Alright, mates, Rusty here with the lowdown for Sandy Beach. The next couple of weeks are a mixed bag, to be honest. We've got some serious swell coming, but the wind is going to be a real pain in the neck most of the time.
Right from the start on Tuesday the 7th through Sunday the 19th, the wind is howling from the ENE at 20 to 25 mph, putting a nasty cross-shore chop on everything. The surf is running 5 ft to 7 ft, but with that wind, it's just a mess. The wave energy is moderate, with readings between 314 and 792, but it's all for nothing. The water temp is a normal 79° for this time of year, which is nothing special.
If you're waiting for something good, it kicks off on the 21st and 22nd. On Tuesday the 21st, a very long-period groundswell starts pushing in from the East with a 16-second period. The surf drops to around 4 ft, but the energy jumps way up. You'll see combined swell energy readings in the four digits like 1284 and 1359. That's strong energy. The catch is the wind is still messy.
But here's the one gem. Wednesday the 22nd afternoon... that's the ticket. The wind goes totally glassy from the SSE at just 3 mph. We're looking at clean, 3 ft waves from the East with a very long 14-second period. The energy is still solid at 731. This is your window. That very long period groundswell from the East isn't the ideal ESE direction for this exposed beach and reef break, but with glassy conditions, it's going to be the cleanest we've seen in the whole forecast. This spot is fairly consistent, so expect some crowd for it.
If you're not a kite surfer, this constant cross-shore ENE wind is not your friend for paddle surfing. It's a long haul waiting for that one glassy window on Wednesday the 22nd. A long 16-day wait for one good afternoon.
Rusty.
Short Range ForecastLight rain (total 2mm), mostly falling on Wed night. Warm (max 25°C on Wed morning, min 24°C on Tue afternoon). Mainly strong winds. | Days 5-7 Weather SummaryLight rain (total 2mm), mostly falling on Fri night. Warm (max 25°C on Fri afternoon, min 24°C on Fri night). Mainly strong winds. | ||||||||||||||||||||
Tue 7 | Wednesday 8 | Thursday 9 | Friday 10 | Saturday 11 | Sunday 12 | Monday 13 | |||||||||||||||
PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | |
Swell Height Map |  |  |  |  |  |  |  |  | |||||||||||||
Wave Height (m) Direction Period (s) | ENE 8 | ENE 7 | ENE 7 | ENE 7 | ENE 8 | ENE 8 | ENE 8 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 7 | ENE 7 |
Wave Graph  | |||||||||||||||||||||
 kJ | 501 | 526 | 512 | 498 | 557 | 393 | 345 | 390 | 353 | 390 | 572 | 516 | 405 | 456 | 472 | 452 | 559 | 393 | 393 | 319 | 310 |
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 | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross-on | cross | cross | cross | cross |
High Tide | 8:03PM0.36m | 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 | ||||||||
Low Tide | 3:55PM0.27m | 3:22AM-0.01m | 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 | |||||||
 |  | | |  | |  |  | | | | | | | |  | | | | | | |
 | — | — | 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 | — | 7:15 |
mm | — | — | — | — | 2 | — | — | — | — | — | 2 | — | — | — | — | — | — | — | — | — | — |
Temp °C | 24 | 24 | 25 | 25 | 24 | 25 | 25 | 24 | 25 | 25 | 24 | 24 | 25 | 24 | 25 | 25 | 24 | 24 | 25 | 24 | 25 |
Feels °C | 20 | 20 | 21 | 21 | 20 | 22 | 22 | 21 | 22 | 22 | 21 | 20 | 22 | 21 | 23 | 22 | 20 | 21 | 22 | 21 | 23 |
Swell 1 Height (m) Direction Period (s) | SSW 14 | SSW 14 | 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 |
| kJ | 273 | 250 | 189 | 187 | 125 | 112 | 110 | 75 | 71 | 41 | 184 | 221 | 316 | 309 | 376 | 367 | 353 | 326 | 272 | 208 | 191 |
Swell 2 Height (m) Direction Period (s) | SE 10 | SE 10 | SE 9 | SE 8 | W 15 | S 16 | SSE 8 | W 13 | W 13 | SW 21 | S 12 | W 14 | W 13 | W 13 | S 11 | SSE 12 | SSE 12 | SSE 12 | W 19 | W 18 | W 17 |
| kJ | 4 | 4 | 3 | 3 | 17 | 21 | 6 | 13 | 13 | 109 | 41 | 63 | 55 | 54 | 23 | 28 | 28 | 27 | 112 | 152 | 147 |
Swell 3 Height (m) Direction Period (s) | N 9 | — | W 18 | S 18 | SE 8 | SE 8 | W 14 | W 16 | SSW 21 | S 13 | W 13 | S 12 | S 12 | S 11 | W 12 | W 12 | W 12 | W 16 | SSE 11 | SW 18 | SSW 19 |
| kJ | 2 | — | 6 | 6 | 3 | 2 | 15 | 20 | 45 | 31 | 55 | 44 | 25 | 23 | 27 | 26 | 26 | 21 | 25 | 82 | 146 |
Wind waves Height (m) Direction Period (s) | ENE 8 | ENE 7 | ENE 7 | ENE 7 | ENE 8 | ENE 8 | ENE 8 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 7 | ENE 7 |
| kJ | 501 | 526 | 512 | 498 | 557 | 393 | 345 | 390 | 353 | 390 | 572 | 516 | 405 | 456 | 472 | 452 | 559 | 393 | 393 | 319 | 310 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 110 | 55 | 57 | 61 | 55 | 55 | 59 | 48 | 55 | 57 | 55 | 55 | 110 | 47 | 48 | 55 | 48 | 47 | 57 | 16 | 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.
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