
Surf Forecasts:
Sandy Beach surf forecast from 24 Jul 2026:
- Best quality surf: Tuesday 28 Jul, 11PM (local time) - 10ft (3.0m), 12s period, ENE swell with cross-offshore winds.
- Most powerful swell: Wednesday 29 Jul, 5AM (local time) - 10ft (3.0m), 12s period, ENE swell with 2,538 kJ wave energy.
- Next surfable swell (1★+): Tuesday 28 Jul, 11PM (local time) - 10ft (3.0m), 12s 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 11PM. The primary swell is predicted to be 3.0m and 12s period with a secondary swell of 0.6m and 14s. Another secondary swell of 0.2m and 10s is also forecast. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Sandy Beach in the next 16 days are 3.0m 12s and forecast to arrive on Wednesday (Jul 29) at 5AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.6m 16s period and expected on Friday (Jul 31) at 5AM.
| Wave Type | Time (HST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 11PM (Tue 28th Jul) | 10ft (3.0m) 12s |
| Best Surf | 11PM (Tue 28th Jul) | 10ft (3.0m) 12s |
| Most Powerful | 5AM (Wed 29th Jul) | 10ft (3.0m) 12s |
Table - best surf conditions forecast for Sandy Beach over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let’s take a good hard look at what’s coming for Sandy Beach. It’s a tough stretch ahead, so I’ll be straight with you.
The forecast period starts now, and there’s a gap before we get anything worth a paddle. The first few days, from Friday the 24th right through the weekend, are a write-off. The wind is ripping hard from the ENE at 25 mph, smashing the ocean into a messy cross-chop. The swell is around 7 ft, but it’s short-period wind swell at 7 seconds, and the water is just a jumbled mess. The combined energy is moderate in the lower range (996) on Friday morning, but it jumps up to strong (1101) by the afternoon, which under normal conditions would be exciting, but the wind is just too strong and cross-shore. It’s a kite surfer’s dream, not a paddle surfer’s. Water temperature is sitting at 80°, which is about average for this time of year, so no worries there.
The only real glimmer of hope in this whole 16-day window comes on Tuesday, July 28th, and then again on Wednesday, July 29th. Tuesday morning is the first time we see a clean wind window. The wind switches to a light cross-offshore from the NE at 16 mph, and the swell is solid at 8 ft from the ENE with a 13-second period. That’s a proper groundswell, with good energy. The combined energy is huge, hitting 1970, which is very strong. This is serious wave energy. The water is going to be moving a lot. The sets will be powerful, with longer gaps between them. This is a session for experienced surfers only at that size. The break is fairly consistent, but be ready for the crowds, as they are often around. This is the standout session of the whole forecast.
But that’s it. The rest of the week and into August is a real bummer. Wednesday afternoon the wind goes cross, and the swell drops off. From Thursday the 30th all the way into the second week, we’re back to strong, cross-shore winds and messy, short-period slop. The swell sticks around in the 3 ft to 7 ft range, but it’s almost always accompanied by a fresh to strong breeze, leaving the waves lumpy and chopped up. The few days where the swell has a longer period, like the 17-second stuff on August 2nd, are still ruined by the wind. The energy levels fluctuate, but the quality never comes together. The breaks are there, but the conditions are just plain poor.
So, to wrap it up: if you can only get in the water once, make it Tuesday morning, July 28th. It’s the only time this window that offers a clean, powerful, and surfable wave. After that, we’re looking at a long, long gap of poor conditions. It’s a waiting game.
Rusty.
Short Range ForecastMostly dry. Warm (max 25°C on Fri morning, min 24°C on Sat night). Mainly strong winds. | Days 4-6 Weather SummaryLight rain (total 7mm), mostly falling on Wed night. Warm (max 26°C on Tue afternoon, min 24°C on Mon morning). Winds decreasing (fresh winds from the NE on Mon afternoon, calm by Wed afternoon). | ||||||||||||||||||||
Friday 24 | Saturday 25 | Sunday 26 | Monday 27 | Tuesday 28 | Wednesday 29 | Thursday 30 | |||||||||||||||
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 7 | ENE 7 | ENE 8 | SSW 18 | ENE 8 | SSW 16 | E 14 | E 14 | E 14 | E 13 | E 13 | ENE 13 | E 13 | ENE 12 | ENE 11 | ENE 9 | ENE 8 | ENE 8 | ENE 8 | ENE 7 |
Wave Graph | |||||||||||||||||||||
431 | 428 | 469 | 430 | 578 | 566 | 469 | 412 | 577 | 622 | 577 | 976 | 1816 | 1430 | 2249 | 1978 | 856 | 446 | 460 | 358 | 456 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross | cross-on | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross-off | cross | cross-off | cross-off | cross | on | cross-on | cross-on | cross-on |
High Tide | 12:42PM0.62m | 11:56PM0.19m | 1:20PM0.64m | 00:50AM0.19m | 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 | |||||||
Low Tide | 8:50PM0.15m | 5:38AM0.03m | 9:14PM0.12m | 6:24AM0.02m | 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 | ||||||||
6:00 | — | — | 6:01 | — | — | 6:01 | — | — | 6:01 | — | — | 6:01 | — | — | 6:01 | — | — | 6:03 | — | — | |
— | 7:13 | — | — | 7:12 | — | — | 7:12 | — | — | 7:12 | — | — | 7:10 | — | — | 7:10 | — | — | 7:09 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | 1 | 1 | — | — | 2 | — | 3 | 1 | — | — |
Temp °C | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 26 | 25 | 25 | 26 | 26 | 26 | 26 | 26 |
Feels °C | 21 | 21 | 21 | 22 | 21 | 22 | 22 | 22 | 21 | 23 | 23 | 23 | 25 | 25 | 24 | 25 | 30 | 29 | 25 | 25 | 25 |
Swell 1 Height (m) Direction Period (s) | SSW 18 | SSW 17 | SSW 16 | SSW 19 | SSW 18 | SSW 18 | SSW 16 | E 14 | E 14 | E 14 | E 13 | E 13 | SSW 14 | E 13 | ENE 12 | ENE 11 | ENE 9 | S 14 | S 14 | S 13 | S 13 |
329 | 340 | 298 | 391 | 578 | 547 | 469 | 412 | 577 | 622 | 577 | 976 | 143 | 1430 | 2249 | 1978 | 856 | 184 | 184 | 173 | 123 | |
Swell 2 Height (m) Direction Period (s) | S 12 | S 12 | S 20 | SSW 16 | S 11 | E 15 | E 15 | SSW 16 | SSW 16 | SSW 15 | SSW 15 | SSW 14 | S 10 | S 14 | SSW 14 | S 14 | S 14 | SSE 4 | SW 18 | SSW 18 | SSW 16 |
143 | 102 | 296 | 223 | 39 | 72 | 348 | 341 | 333 | 228 | 222 | 213 | 8 | 179 | 195 | 192 | 192 | 7 | 154 | 207 | 177 | |
Swell 3 Height (m) Direction Period (s) | SSW 15 | S 21 | S 12 | S 11 | E 13 | E 12 | S 11 | S 11 | S 10 | S 10 | S 10 | SSE 10 | SE 9 | — | SW 21 | SW 21 | SSW 20 | SW 19 | SW 13 | SSE 6 | N 9 |
93 | 231 | 100 | 63 | 54 | 47 | 20 | 20 | 8 | 8 | 8 | 11 | 3 | — | 18 | 17 | 37 | 58 | 7 | 6 | 15 | |
Wind waves Height (m) Direction Period (s) | ENE 7 | ENE 7 | ENE 7 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 7 | ENE 7 | NE 7 | NE 7 | NE 6 | ENE 13 | NNE 7 | ENE 12 | SE 4 | SSE 4 | ENE 8 | ENE 8 | ENE 8 | ENE 7 |
431 | 428 | 469 | 430 | 477 | 566 | 372 | 387 | 279 | 261 | 235 | 152 | 1816 | 165 | 1502 | 9 | 11 | 446 | 460 | 358 | 456 | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 61 | 61 | 47 | 55 | 57 | 47 | 47 | 55 | 20 | 47 | 110 | 5 | 5 | 50 | 18 | 14 | 3 | 30 | 42 | 42 | 55 |
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.










