
Surf Forecasts:
Sandy Beach surf forecast from 9 Jul 2026:
- Most powerful swell: Sunday 12 Jul, 11AM (local time) - 7.5ft (2.3m), 7s period, ENE swell with 573 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 7s and forecast to arrive on Sunday (Jul 12) at 11AM. 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 | 11AM (Sun 12th Jul) | 7.5ft (2.3m) 7s |
Table - best surf conditions forecast for Sandy Beach over the next 16 days.
Well, folks, this is a tough one. I gotta be straight with you – Sandy Beach is looking like a bit of a write-off for the next couple of weeks. The waves are there, but the wind is just gonna ruin it.
The pattern is pretty clear: we’ve got solid, consistent swell for the first week, with heights mostly between 5 ft and 8 ft, all coming from the ENE. But look at the wind – it’s locked in from the same direction at 18 to 28 mph, blowing straight across the face. That’s a classic cross-shore mess, creating lumpy, chop-ridden conditions. The combined wave energy is moderate to strong (values between 213 and 721), which tells you there’s power in the water, but it’s all wasted energy. It’s just not surfable for a paddle board.
For the first week, from Thursday the 9th all the way through to Saturday the 18th, every single session is marked as poor. The morning of Monday the 20th and the afternoon of the 21st of July, things get a little interesting with a much bigger, longer-period groundswell from the E. The combined energy jumps to 1516 and 1728, which is very strong. The swell heights are only 4 ft to 4 ft, but the period is 18 to 19 seconds. That’s very long-period energy. For a beach-and-reef setup like Sandy Beach, that long period can make the waves break too straight and fast, not offering the best shape. Plus, the wind is still a fresh cross-shore, so it’ll still be lumpy. It’s a marginal call at best. The water temp is a normal 79° for the time of year, so at least you won’t need a hood.
Honestly, if you’re desperate for a session, the setup looks more interesting for kite surfing than paddle surfing. The strong, consistent cross-shore wind and the push of swell are perfect for a kite. For the rest of us, it’s a waiting game. The long-range forecast towards the 24th of July shows the swell dropping, but the wind stays onshore. It’s a rare blank run for this area.
Rusty
Short Range ForecastMostly dry. Warm (max 25°C on Thu morning, min 24°C on Thu morning). Mainly strong winds. | Days 4-6 Weather SummaryMostly dry. Warm (max 25°C on Sun afternoon, min 24°C on Sun morning). Mainly strong winds. | ||||||||||||||||||||
Thursday 9 | Friday 10 | Saturday 11 | Sunday 12 | Monday 13 | Tuesday 14 | Wednesday 15 | |||||||||||||||
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 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 | E 8 | ENE 8 | NE 8 | ENE 7 | SSW 18 | ENE 7 |
Wave Graph | |||||||||||||||||||||
403 | 428 | 426 | 353 | 293 | 419 | 456 | 432 | 307 | 573 | 471 | 520 | 393 | 373 | 273 | 138 | 264 | 135 | 242 | 209 | 192 | |
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 | cross | cross | cross | cross | cross-on | cross | cross | cross-on |
High Tide | 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 | 3:38PM0.81m | 3:40AM0.23m | 4:19PM0.78m | 4:35AM0.27m | |||||||
Low Tide | 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 | 11:09PM0.02m | 9:12AM-0.05m | 11:45PM0.02m | ||||||||
5:54 | — | — | 5:54 | — | — | 5:54 | — | — | 5:56 | — | — | 5:56 | — | — | 5:56 | — | — | 5:56 | — | — | |
— | 7:15 | — | — | 7:15 | — | — | 7:15 | — | — | 7:15 | — | — | 7:15 | — | — | 7:15 | — | — | 7:15 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 25 | 25 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 25 | 24 | 24 | 24 | 24 | 24 | 25 | 24 | 25 | 25 | 25 |
Feels °C | 23 | 22 | 20 | 21 | 20 | 21 | 21 | 20 | 21 | 21 | 21 | 20 | 20 | 20 | 20 | 22 | 22 | 21 | 23 | 23 | 23 |
Swell 1 Height (m) Direction Period (s) | S 12 | S 12 | S 12 | S 12 | SSW 11 | SW 19 | SSW 18 | SW 18 | SW 17 | SW 16 | SW 16 | SW 16 | SSW 15 | SW 15 | SW 14 | NNE 7 | SW 14 | NE 8 | W 15 | W 15 | SW 16 |
112 | 110 | 75 | 71 | 42 | 184 | 221 | 316 | 309 | 376 | 367 | 353 | 287 | 217 | 208 | 75 | 189 | 129 | 221 | 215 | 251 | |
Swell 2 Height (m) Direction Period (s) | S 16 | W 14 | W 13 | W 13 | SW 21 | S 12 | W 14 | W 13 | W 13 | W 12 | SSE 12 | W 12 | SSE 12 | W 18 | W 18 | SW 14 | W 16 | E 7 | SSW 13 | SSW 14 | W 15 |
21 | 15 | 13 | 13 | 109 | 41 | 63 | 54 | 54 | 27 | 28 | 26 | 27 | 97 | 152 | 191 | 188 | 104 | 142 | 178 | 215 | |
Swell 3 Height (m) Direction Period (s) | SSE 8 | SSE 7 | W 16 | SSW 21 | W 13 | W 13 | S 12 | S 12 | S 11 | S 13 | W 12 | SSE 12 | W 12 | SSE 11 | SW 18 | W 16 | SW 19 | W 15 | SW 18 | SSW 18 | SSE 9 |
6 | 5 | 20 | 45 | 29 | 55 | 44 | 25 | 23 | 29 | 26 | 28 | 26 | 25 | 82 | 190 | 94 | 227 | 152 | 209 | 8 | |
Wind waves Height (m) Direction Period (s) | 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 | E 8 | ENE 8 | E 7 | ENE 7 | ENE 7 | ENE 7 |
403 | 428 | 426 | 353 | 293 | 419 | 456 | 432 | 307 | 573 | 471 | 520 | 393 | 373 | 273 | 138 | 264 | 135 | 242 | 198 | 192 | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 55 | 61 | 63 | 47 | 63 | 48 | 55 | 57 | 47 | 57 | 63 | 55 | 55 | 61 | 47 | 47 | 48 | 47 | 47 | 48 | 18 |
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.










