
Surf Forecasts:
Sandy Beach surf forecast from 11 Jul 2026:
- Most powerful swell: Monday 13 Jul, 5AM (local time) - 7ft (2.2m), 7s period, ENE swell with 498 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 7s 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) 7s |
Table - best surf conditions forecast for Sandy Beach over the next 16 days.
Alright folks, Rusty here. Let’s be real about what’s on the menu for the next couple of weeks. We’re looking at Sandy Beach, a beach and reef setup, and the outlook is a bit of a tough one to swallow. The water's sitting pretty average for the time of year, so no weirdness there.
The whole 16-day window is a rough stretch. The wind is a constant problem—it’s hammering from the ENE, creating cross-shore or cross-onshore conditions that turn the ocean into a lumpy, messy chop. We kick off Saturday, July 11th, with a strong breeze and cross-shore winds, wrapping a 7 ft swell from the ENE with a short, weak 7-second period. The combined energy is moderate (737), but with that wind, it’s just poor. Honestly, this setup looks more interesting for kite surfing than paddle surfing.
This pattern sticks. Through Sunday, Monday, and Tuesday, the same story: ENE winds, lumpy cross-chop, and poor surf. The swell hangs around 3 ft to 7 ft, but the period never gets above 8 seconds, so it’s all weak, short-period wind swell. The combined energy dips and climbs (428, 725, 359) but it doesn’t matter—the wind ruins it.
Wednesday, July 15th, the swell drops off to 2 ft with a very long 18-second period from the SSW, but the wind is still cross-onshore. That’s a tease. The energy is moderate (346) but the wave state is choppy. Thursday and Friday are the same mess: strong breeze, cross-onshore wind, and that long-period SSW swell showing up again, but it’s just not surfable.
The second week doesn't get any better. From Saturday, July 18th, right through to Friday, July 24th, it’s a constant fight with fresh ENE breezes, cross-shore chop, and poor conditions. The swell heights bounce around between 2 ft and 6 ft, and the combined energy sits in the moderate range (225 to 959), but it’s all cross-shore or cross-onshore junk. The 19-second period on July 20th is a long groundswell, but it’s getting smashed by the wind. This break is a beach and reef, so that long period might break too straight, but it’s academic because the wind is so bad.
There is a brief glimmer on Saturday, July 25th morning. The wind drops to a moderate breeze from the NE, and the swell is 5 ft from the ENE, with a 7-second period. The combined energy is moderate (512), and the wave comment calls it marginal. The wind is still cross-shore, so it’s not clean, but it’s the only day in the whole 16 days that’s not a total write-off. It’s a 1 out of 10 kind of day. The crowds are listed as "often" at Sandy Beach, so expect company for that sloppy, marginal window.
So, the honest truth? There is no standout. This is a blank run. If you’ve got to paddle out, that Saturday morning, July 25th, is your only real shot, and even then, keep your expectations on the floor. The area is a bit of a graveyard for swell in this wind pattern; it tends not to stay this poor for long, but right now, it’s a kook’s paradise for kiting, not surfing.
Rusty.
Short Range ForecastMostly dry. Warm (max 25°C on Fri night, min 24°C on Fri night). Mainly strong winds. | Days 5-7 Weather SummaryMostly dry. Warm (max 25°C on Mon night, min 24°C on Mon night). Mainly fresh winds. | ||||||||||||||||||||
Saturday 11 | Sunday 12 | Monday 13 | Tuesday 14 | Wednesday 15 | Thursday 16 | Fri 17 | |||||||||||||||
Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | |
Swell Height Map | |||||||||||||||||||||
Wave Height (m) Direction Period (s) | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 7 | ENE 8 | NNE 8 | NE 7 | SSW 18 | ENE 7 | SSW 16 | SSW 16 | SSW 17 | SSW 15 | ENE 6 | SSW 16 |
Wave Graph | |||||||||||||||||||||
444 | 472 | 316 | 316 | 456 | 400 | 422 | 411 | 331 | 242 | 213 | 117 | 118 | 207 | 85 | 314 | 175 | 195 | 144 | 192 | 196 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross | cross | cross-on | cross | cross | cross | cross | cross | cross | cross | cross | cross-on | cross-on | cross | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on |
High Tide | 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 | 4:58PM0.72m | 5:33AM0.31m | 5:35PM0.64m | |||||||
Low Tide | 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 | 10:02AM0.01m | 00:20AM0.02m | 10:55AM0.08m | |||||||
— | 5:54 | — | — | 5:56 | — | — | 5:56 | — | — | 5:56 | — | — | 5:56 | — | — | 5:56 | — | — | 5:58 | — | |
7:15 | — | 7:15 | — | — | 7:15 | — | — | 7:15 | — | — | 7:15 | — | — | 7:15 | — | — | 7:15 | — | — | 7:15 | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 2 | 3 | 1 |
Temp °C | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 24 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 |
Feels °C | 23 | 22 | 22 | 22 | 22 | 21 | 22 | 20 | 23 | 22 | 24 | 23 | 24 | 24 | 23 | 24 | 23 | 22 | 24 | 22 | 23 |
Swell 1 Height (m) Direction Period (s) | SW 19 | SSW 18 | SW 18 | SW 17 | SW 16 | SW 16 | SW 16 | SSW 15 | SSW 15 | SW 14 | SW 14 | NNE 8 | NE 7 | W 15 | ENE 7 | E 6 | NNE 7 | W 14 | SSW 15 | W 14 | SSW 16 |
184 | 221 | 316 | 309 | 376 | 367 | 353 | 287 | 272 | 208 | 191 | 117 | 118 | 221 | 85 | 62 | 62 | 200 | 144 | 144 | 196 | |
Swell 2 Height (m) Direction Period (s) | S 12 | W 14 | W 13 | W 13 | W 12 | SSE 12 | W 12 | SSE 12 | W 18 | W 18 | W 16 | E 8 | E 7 | SW 13 | W 15 | SSW 16 | W 14 | SSW 13 | W 14 | SW 16 | W 14 |
41 | 63 | 54 | 54 | 27 | 28 | 26 | 27 | 97 | 152 | 190 | 72 | 70 | 164 | 215 | 314 | 203 | 113 | 148 | 125 | 98 | |
Swell 3 Height (m) Direction Period (s) | W 13 | S 12 | S 12 | S 11 | S 13 | W 12 | SSE 12 | W 12 | SSE 11 | SW 18 | SSW 19 | SW 14 | W 15 | SSW 18 | SW 14 | NNE 8 | SSW 16 | SSW 17 | NNE 7 | S 11 | NNE 7 |
55 | 44 | 25 | 23 | 29 | 26 | 28 | 26 | 25 | 82 | 146 | 186 | 227 | 207 | 206 | 66 | 175 | 195 | 29 | 35 | 31 | |
Wind waves Height (m) Direction Period (s) | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 7 | ENE 8 | — | — | NE 7 | — | — | E 6 | ENE 6 | ENE 6 | ENE 6 | ENE 6 |
444 | 472 | 316 | 316 | 456 | 400 | 422 | 411 | 331 | 242 | 213 | — | — | 139 | — | — | 54 | 117 | 89 | 192 | 147 | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 48 | 55 | 57 | 55 | 57 | 57 | 55 | 47 | 48 | 19 | 16 | 47 | 23 | 48 | 19 | 47 | 48 | 55 | 18 | 55 | 55 |
Best forecast wave conditions in Oahu | |||||||||||||||||||||
Best forecast wave conditions in United States | |||||||||||||||||||||
Header Global | |||||||||||||||||||||
- Map Icons:
Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)
Wind Speed (km/h)
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.











