
Surf Forecasts:
Sandy Beach surf forecast from 2 Aug 2026:
- Most powerful swell: Sunday 2 Aug, 11AM (local time) - 7ft (2.2m), 8s period, ENE swell with 699 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 Sunday (Aug 02) 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 0.5m 15s period and expected on Wednesday (Aug 05) at 8PM.
| Wave Type | Time (HST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 11AM (Sun 2nd Aug) | 7ft (2.2m) 8s |
Table - best surf conditions forecast for Sandy Beach over the next 16 days.
The Lowdown
Alright, let’s get real about the next couple of weeks. I’m looking at Sandy Beach and, honestly, it’s a bit of a battle out there. The overall pattern is one of persistent, annoying cross-shore winds that are going to keep things messy for the foreseeable future. We’ve got a lot of swell on the way, but it’s going to be mostly junky and lumpy because of the wind.
We start off the window on Sunday morning, August 2nd. We’ve got some energy in the water—a solid 7ft of east-northeast swell—but the wind is howling at 25 mph straight across it. It’s a washing machine. The combined energy is strong at 1061, but with that cross-chop, it’s just not rideable. That theme continues through Monday and into Tuesday. The swell drops a bit to 5ft and 5ft, but the wind is relentless. Tuesday morning, we finally see the period jump to 11 seconds, which is a hint of better things to come, but it’s still blown out.
The mid-week period from Wednesday the 5th through the weekend is all about waiting. The swell fades, and the wind never really gives us a break. There’s still plenty of cross-shore wind, and the surf looks poor. We're stuck in a rut with weak, short-period windswell mixed with the same old messy conditions.
Here’s the thing though—while the surf quality stays poor, the long-range models are showing a shift in the swell direction. We start seeing signs of a south-southwest groundswell around Friday the 7th, but it’s small and the wind ruins it. By late next week, around August 11th and 12th, we have a real pulse of long-period south swell filling in. We’re talking 3ft to 4ft of swell with periods of 18 to 20 seconds. This is proper groundswell, with strong combined energy peaking at 971 on the Wednesday afternoon. But here’s the kicker—the wind is still cross-shore and fresh, so even with that beautiful period, it’s going to be lumpy. This swell is best suited for a point or reef break, but at a beach and reef setup like Sandy Beach, that long period can make it sectiony and hard to ride.
The water temp is sitting at 81°, which is about average for this time of year, so no surprises there.
The standout moment, if there is one, is probably the middle of the second week. Look for the south swell on the 12th and 13th. The period is long, and there’s some size, but the quality is still on the fence. It’s promising, but I wouldn’t book a flight for it. The later part of the window, around the 17th, shows a return to the east-northeast swell, but it’s still short-period and cross-windy.
Honestly, for the next 16 days, there’s nothing here that gets me truly excited. It’s a bleak run. If you’re desperate, the south swells in the second week are the best of a bad lot, but they’re far from guaranteed to be good. Keep an eye on the forecasts, because these things can change, but don't hold your breath.
Rusty out.
Short Range ForecastMostly dry. Warm (max 26°C on Mon afternoon, min 24°C on Sun night). Winds decreasing (fresh winds from the ENE on Sun afternoon, light winds from the NE by Tue morning). | Days 4-6 Weather SummaryMostly dry. Warm (max 26°C on Wed morning, min 25°C on Wed morning). Winds increasing (light winds from the ENE on Wed night, fresh winds from the ENE by Fri night). | ||||||||||||||||||||
Sunday 2 | Monday 3 | Tuesday 4 | Wednesday 5 | Thursday 6 | Friday 7 | Saturday 8 | |||||||||||||||
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 | ENE 8 | ENE 12 | ENE 11 | ENE 11 | ENE 10 | ENE 10 | ENE 9 | ENE 9 | ENE 8 | SSW 14 | ENE 6 | SSW 14 | SSW 14 | ENE 7 | ENE 7 | ENE 7 | ENE 7 |
Wave Graph | |||||||||||||||||||||
699 | 627 | 560 | 353 | 284 | 593 | 452 | 379 | 358 | 258 | 158 | 147 | 128 | 80 | 57 | 77 | 73 | 181 | 285 | 251 | 348 | |
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 | cross | cross | cross-on | cross-on | cross | cross-on | cross | cross | cross-on | cross | cross | cross |
High Tide | 5:22PM0.53m | 6:48AM0.43m | 5:53PM0.45m | 7:57AM0.48m | 6:26PM0.37m | 9:10AM0.55m | 7:10PM0.29m | 10:22AM0.61m | 8:39PM0.22m | 11:25AM0.67m | 10:36PM0.19m | 12:21PM0.73m | 00:00AM0.20m | ||||||||
Low Tide | 11:17AM0.16m | 00:29AM0.04m | 12:27PM0.23m | 00:59AM0.04m | 2:07PM0.27m | 1:37AM0.03m | 4:33PM0.27m | 2:24AM0.02m | 6:43PM0.21m | 3:25AM0.02m | 7:38PM0.16m | 4:32AM0.00m | 8:16PM0.11m | ||||||||
6:03 | — | — | 6:03 | — | — | 6:05 | — | — | 6:05 | — | — | 6:05 | — | — | 6:05 | — | — | 6:05 | — | — | |
— | 7:08 | — | — | 7:07 | — | — | 7:07 | — | — | 7:07 | — | — | 7:06 | — | — | 7:06 | — | — | 7:05 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 |
Temp °C | 25 | 25 | 25 | 25 | 26 | 25 | 26 | 26 | 25 | 26 | 26 | 25 | 26 | 26 | 25 | 25 | 26 | 25 | 25 | 25 | 25 |
Feels °C | 22 | 21 | 22 | 24 | 25 | 24 | 27 | 26 | 26 | 27 | 25 | 25 | 26 | 25 | 24 | 23 | 24 | 24 | 23 | 22 | 22 |
Swell 1 Height (m) Direction Period (s) | E 14 | E 14 | E 13 | E 13 | E 12 | ENE 12 | ENE 11 | ENE 11 | ENE 10 | ENE 10 | ENE 9 | ENE 9 | ENE 8 | ENE 8 | ENE 8 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 13 | SSW 13 |
246 | 192 | 125 | 84 | 108 | 593 | 452 | 379 | 358 | 258 | 158 | 147 | 128 | 43 | 22 | 77 | 73 | 108 | 115 | 102 | 99 | |
Swell 2 Height (m) Direction Period (s) | SSW 14 | SSW 13 | SW 12 | SSW 13 | SSW 12 | SSW 12 | SSW 12 | SSW 11 | SSW 11 | SSW 11 | SSW 15 | SW 14 | SSW 14 | SSW 14 | SW 14 | SSE 11 | SSE 11 | SSW 19 | SW 18 | SSW 18 | SW 18 |
133 | 67 | 40 | 53 | 50 | 56 | 46 | 51 | 47 | 47 | 88 | 54 | 82 | 80 | 102 | 22 | 38 | 148 | 164 | 124 | 150 | |
Swell 3 Height (m) Direction Period (s) | N 9 | N 9 | SSW 13 | SW 13 | SW 13 | SSE 9 | W 13 | SW 16 | SW 15 | SSE 13 | SSW 11 | SSE 12 | SSE 12 | SSE 11 | SSE 11 | SW 21 | SW 20 | SSE 11 | S 10 | SSE 10 | SSE 10 |
15 | 14 | 58 | 42 | 41 | 17 | 30 | 68 | 57 | 56 | 38 | 48 | 26 | 41 | 40 | 115 | 99 | 22 | 17 | 18 | 19 | |
Wind waves Height (m) Direction Period (s) | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | — | — | — | — | — | — | — | — | ENE 6 | ENE 6 | ENE 5 | ENE 5 | ENE 7 | ENE 7 | ENE 7 | ENE 7 |
699 | 627 | 560 | 353 | 284 | — | — | — | — | — | — | — | — | 36 | 57 | 51 | 71 | 181 | 285 | 251 | 348 | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 113 | 59 | 50 | 18 | 50 | 16 | 14 | 5 | 16 | 16 | 16 | 16 | 42 | 47 | 47 | 47 | 55 | 55 | 55 | 55 | 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.











