Surf Forecasts:
Sandy Beach surf forecast from 13 Jul 2026:
- Most powerful swell: Monday 13 Jul, 5AM (local time) - 7ft (2.1m), 8s period, ENE swell with 481 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 2.1m 8s and forecast to arrive on Monday (Jul 13) at 5AM. 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 16s period and expected on Sunday (Jul 12) at 11PM.
| Wave Type | Time (HST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 5AM (Mon 13th Jul) | 7ft (2.1m) 8s |
Table - best surf conditions forecast for Sandy Beach over the next 16 days.
Alright folks, Rusty here. Let's have a look at what Sandy Beach has got cookin' for us. Honestly, it's a bit of a grim stretch for the next couple of weeks. The water's sitting at a pretty normal 79°, so no surprises there, but the surf just isn't cooperating.
We're looking at a long, dry spell to kick things off. From Sunday the 12th all the way through to Saturday the 26th of July, every single session is rated as poor surf conditions. That's a solid two weeks of nothing to get excited about. The wind is relentless, hammering in from the ENE, mostly as a strong cross-shore breeze, creating messy lumpy cross-chop. The swell that does pop up is mostly short-period windswell around 3ft to 6ft, but with the wind direction and speed, it's just junk. Even when the swell direction tries to shift to a longer-period SSW groundswell, the wind stays on it, so you're still getting a choppy mess. The combined swell energy during this period varies from weak to moderate (199 to 805), but it doesn't matter when the quality is that poor.
Finally, on Monday the 27th of July, things start to look slightly less hopeless. We've got a bit of a long-period E swell rolling in, hitting about 4ft to 4ft with a period of 15 seconds. The combined energy jumps noticeably, reaching 1168 to 1356, which is a solid moderate pulse. The wind finally drops to a moderate breeze, but it's still cross-shore. The forecast calls it marginal, so it's not a standout, more of a glimmer of hope after a long wait. This long-period groundswell could produce some shape, but with the cross-shore wind, it's not going to be perfect. For Sandy Beach, a beach and reef setup, that long period might make it break a bit straight. Honestly, given the endless wind and chop through most of the period, this setup looks more interesting for kite surfing than paddle surfing for the vast majority of the forecast.
So, there's really no standout session to chase here. The single best bet is that marginal window on Monday the 27th of July. It's a long way off, but if you're desperate, keep an eye on it. For now, I'd tune in again next week.
Rusty.
Short Range ForecastLight rain (total 3mm), mostly falling on Tue morning. Warm (max 25°C on Sun afternoon, min 24°C on Sun night). Winds decreasing (strong winds from the ENE on Sun night, light winds from the E by Wed morning). | Days 5-7 Weather SummaryLight rain (total 2mm), mostly falling on Wed night. Warm (max 26°C on Thu afternoon, min 24°C on Thu night). Mainly fresh winds. | ||||||||||||||||||||
Sun 12 | Monday 13 | Tuesday 14 | Wednesday 15 | Thursday 16 | Friday 17 | Saturday 18 | |||||||||||||||
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 8 | ENE 8 | ENE 8 | ENE 7 | E 8 | NE 7 | NE 8 | ENE 7 | SSW 14 | ENE 7 | SSW 16 | SSW 17 | SSW 12 | SSW 11 | SSW 16 | S 14 | ENE 8 | ENE 8 | ENE 7 | ENE 7 |
Wave Graph  | |||||||||||||||||||||
 kJ | 419 | 451 | 358 | 296 | 236 | 105 | 136 | 204 | 168 | 178 | 151 | 175 | 195 | 341 | 222 | 196 | 136 | 300 | 345 | 405 | 346 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross | cross | cross | cross | cross | cross | cross-on | cross-on | cross | cross-on | cross-on | cross-on | cross-on | cross | cross | cross | cross-on | cross | cross-on | cross |
High Tide | 2:10PM0.81m | 1:53AM0.19m | 2:55PM0.82m | 2:47AM0.21m | 3:38PM0.81m | 3:40AM0.23m | 4:19PM0.78m | 4:35AM0.27m | 4:58PM0.72m | 5:33AM0.31m | 5:35PM0.64m | 6:37AM0.35m | 6:10PM0.55m | 7:46AM0.40m | |||||||
Low Tide | 9:53PM0.05m | 7:31AM-0.09m | 10:32PM0.03m | 8:22AM-0.08m | 11:09PM0.02m | 9:12AM-0.05m | 11:45PM0.02m | 10:02AM0.01m | 00:20AM0.02m | 10:55AM0.08m | 00:53AM0.03m | 11:55AM0.16m | 1:26AM0.03m | 1:10PM0.23m | |||||||
 |  |  | | |  | |  | | | | | |  | | | | | | | | |
 | — | — | 5:56 | — | — | 5:56 | — | — | 5:56 | — | — | 5:56 | — | — | 5:58 | — | — | 5:58 | — | — | 5:58 |
 | 7:15 | — | — | 7:15 | — | — | 7:15 | — | — | 7:15 | — | — | 7:15 | — | — | 7:15 | — | — | 7:15 | — | 7:14 |
mm | — | — | — | — | — | 1 | 1 | 1 | — | — | 2 | — | — | — | — | — | — | — | — | — | — |
Temp °C | 25 | 24 | 24 | 24 | 24 | 24 | 25 | 24 | 25 | 25 | 25 | 25 | 26 | 25 | 25 | 25 | 25 | 25 | 26 | 25 | 25 |
Feels °C | 22 | 20 | 20 | 21 | 21 | 23 | 23 | 22 | 26 | 25 | 24 | 25 | 26 | 25 | 24 | 24 | 25 | 24 | 26 | 24 | 24 |
Swell 1 Height (m) Direction Period (s) | SW 16 | SW 16 | SSW 15 | SSW 15 | SW 14 | NNE 7 | E 8 | NE 7 | ENE 7 | ENE 7 | NE 7 | W 14 | W 14 | SSW 12 | ENE 7 | ENE 6 | NE 7 | SSW 13 | SSW 14 | S 12 | S 12 |
| kJ | 367 | 353 | 287 | 272 | 208 | 105 | 74 | 121 | 168 | 84 | 151 | 203 | 203 | 341 | 154 | 64 | 54 | 141 | 210 | 108 | 72 |
Swell 2 Height (m) Direction Period (s) | SSE 12 | W 12 | SSE 12 | W 18 | W 18 | E 8 | SW 14 | W 15 | W 15 | W 15 | SW 16 | SSW 16 | SSW 17 | W 14 | SSW 11 | SSW 10 | S 14 | NNE 8 | NNE 8 | W 13 | S 19 |
| kJ | 48 | 26 | 27 | 97 | 152 | 94 | 186 | 227 | 221 | 215 | 251 | 175 | 195 | 148 | 222 | 111 | 136 | 19 | 19 | 28 | 65 |
Swell 3 Height (m) Direction Period (s) | W 12 | SSE 12 | W 12 | SSE 11 | SW 18 | SW 14 | W 16 | SSW 13 | SSW 13 | SSW 14 | W 15 | NNE 8 | SSE 7 | SSW 18 | W 14 | SSW 16 | SSW 8 | SSW 8 | SW 8 | SSE 9 | SSE 8 |
| kJ | 26 | 28 | 26 | 25 | 82 | 191 | 188 | 111 | 142 | 178 | 212 | 33 | 31 | 103 | 101 | 196 | 41 | 23 | 14 | 15 | 7 |
Wind waves Height (m) Direction Period (s) | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 7 | — | NE 7 | NE 8 | — | — | ENE 7 | ENE 6 | ENE 7 | ENE 7 | — | — | E 6 | ENE 8 | ENE 8 | ENE 7 | ENE 7 |
| kJ | 419 | 451 | 358 | 296 | 236 | — | 136 | 204 | — | — | 137 | 127 | 158 | 180 | — | — | 47 | 300 | 345 | 405 | 346 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 57 | 55 | 48 | 48 | 16 | 16 | 18 | 17 | 5 | 47 | 5 | 47 | 42 | 48 | 47 | 20 | 18 | 47 | 47 | 47 | 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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