Surf Forecasts:
Sandy Beach surf forecast from 12 Jul 2026:
- Most powerful swell: Monday 13 Jul, 5AM (local time) - 7ft (2.2m), 8s period, ENE swell with 512 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 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 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 | 5AM (Mon 13th Jul) | 7ft (2.2m) 8s |
Table - best surf conditions forecast for Sandy Beach over the next 16 days.
Alright folks, Rusty here with the outlook for Sandy Beach. Look, I've gotta be straight with you – this stretch of sand is seeing a real rough patch over the next couple of weeks. The predominant ENE wind is blowing strong and cross-shore, sometimes cross-on, which is tearing up what little wave energy we have. The swell direction, mostly from the ENE, doesn't match the optimum ESE direction this spot craves, so we're getting messy, lumpy conditions day after day.
We're looking at a pretty grim run starting Sunday the 12th. That morning, we've got 6ft of ENE swell with a short, weak period of 8 seconds, but with a 25 mph cross-shore wind, it's just a total write-off. The combined swell energy is moderate at 418, but it doesn't matter – the surface is a mess. That 'poor surf conditions' tag holds all the way through the first week, right up to Saturday the 26th. Every session is plagued by that ENE breeze from 15 to 25 mph, creating a persistent cross-shore chop. The water temp is 79°, bang on average for the time of year, so you won't get any comfort from a neoprene change.
There is literally one tiny glimmer here. On Monday the 27th, we finally see something different. The wind swings around to a gentle NNE breeze at 12 mph, going cross-offshore. The swell is only 3ft from the E with a big 14-second period, but it's not much to write home about. The combined energy is strong at 789, but this is a beach break, and a long-period swell can break too straight and close out on a beach. The afternoon is the pick with that clean wind, but it's flagged as marginal. It's still the best of a bad bunch. Before that, there's a full two weeks of junk.
Honestly, with this persistent cross-shore wind and consistent ENE swell, this setup looks a lot more interesting for kite surfing than paddle surfing for the foreseeable future. The waves will be there, but the quality just isn't.
Rusty.
Short Range ForecastMostly dry. Warm (max 25°C on Sun morning, min 24°C on Sun morning). Winds decreasing (strong winds from the ENE on Sun morning, light winds from the E by Tue night). | Days 4-6 Weather SummaryLight rain (total 5mm), mostly falling on Wed afternoon. Warm (max 26°C on Thu afternoon, min 24°C on Thu night). Winds increasing (light winds from the E on Wed night, fresh winds from the ENE by Fri morning). | ||||||||||||||||||||
Sunday 12 | Monday 13 | Tuesday 14 | Wednesday 15 | Thursday 16 | Friday 17 | Saturday 18 | |||||||||||||||
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 8 | ENE 8 | ENE 8 | ENE 8 | SSW 15 | ENE 7 | E 8 | NE 8 | NE 8 | ENE 7 | SSW 14 | SSW 16 | SSW 16 | SSW 13 | SSW 13 | SSW 11 | SSW 16 | S 14 | SSW 13 | SSW 14 | E 8 |
Wave Graph  | |||||||||||||||||||||
 kJ | 389 | 419 | 410 | 383 | 314 | 237 | 108 | 236 | 141 | 127 | 178 | 314 | 175 | 145 | 299 | 211 | 196 | 96 | 141 | 210 | 161 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross | cross | cross | cross | cross | cross | cross | cross-on | cross-on | cross-on | cross-on | cross | cross-on | cross-on | cross | cross | cross | cross | cross | 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 | ||||||||
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 | ||||||||
 | |  |  | | | | |  | |  |  | | | | | | | | | | |
 | 5:56 | — | — | 5:56 | — | — | 5:56 | — | — | 5:56 | — | — | 5:56 | — | — | 5:58 | — | — | 5:58 | — | — |
 | — | 7:15 | — | — | 7:15 | — | — | 7:15 | — | — | 7:15 | — | — | 7:15 | — | — | 7:15 | — | — | 7:15 | — |
mm | — | — | — | — | — | — | — | — | — | — | 2 | 2 | — | — | 1 | — | — | — | — | — | — |
Temp °C | 25 | 25 | 24 | 24 | 24 | 24 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 26 | 25 | 25 | 25 | 25 | 25 | 25 | 25 |
Feels °C | 22 | 21 | 20 | 20 | 21 | 22 | 24 | 23 | 25 | 25 | 26 | 24 | 25 | 26 | 25 | 24 | 23 | 24 | 24 | 23 | 25 |
Swell 1 Height (m) Direction Period (s) | SW 16 | SW 16 | SW 16 | SSW 15 | SSW 15 | SW 14 | NNE 7 | SW 14 | W 15 | ENE 7 | ENE 7 | NE 7 | W 14 | ENE 6 | SSW 13 | SSW 11 | SSW 10 | SSW 9 | SSW 13 | E 8 | E 8 |
| kJ | 376 | 367 | 353 | 287 | 272 | 208 | 108 | 186 | 227 | 127 | 70 | 136 | 203 | 101 | 299 | 211 | 130 | 56 | 141 | 108 | 161 |
Swell 2 Height (m) Direction Period (s) | W 12 | SSE 12 | W 12 | SSE 12 | W 18 | W 18 | E 8 | W 16 | SSW 13 | W 15 | W 15 | SSW 16 | NNE 7 | SSW 13 | W 14 | W 14 | SSW 16 | S 14 | NNE 7 | SSW 14 | S 12 |
| kJ | 27 | 47 | 26 | 27 | 97 | 152 | 94 | 188 | 111 | 221 | 215 | 314 | 47 | 145 | 148 | 101 | 196 | 96 | 28 | 210 | 108 |
Swell 3 Height (m) Direction Period (s) | S 13 | W 12 | SSE 12 | W 12 | SSE 11 | SW 18 | SW 14 | SW 19 | E 7 | SW 13 | SSW 14 | W 15 | SSW 16 | W 14 | SSE 7 | SW 16 | W 14 | W 13 | WNW 13 | NNE 7 | NNE 7 |
| kJ | 29 | 26 | 28 | 26 | 25 | 82 | 191 | 94 | 39 | 164 | 178 | 212 | 175 | 200 | 18 | 125 | 98 | 90 | 57 | 35 | 29 |
Wind waves Height (m) Direction Period (s) | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 7 | ENE 7 | — | NE 8 | NE 8 | — | — | — | ENE 6 | ENE 6 | ENE 6 | ENE 7 | ENE 7 | ENE 6 | ENE 6 | — | — |
| kJ | 389 | 419 | 410 | 383 | 314 | 237 | — | 236 | 141 | — | — | — | 66 | 59 | 151 | 144 | 134 | 68 | 51 | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 55 | 59 | 55 | 48 | 47 | 16 | 16 | 47 | 29 | 5 | 42 | 5 | 47 | 42 | 48 | 48 | 48 | 47 | 47 | 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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