
Surf Forecasts:
Sandy Beach surf forecast from 28 Jul 2026:
- Best quality surf: Wednesday 29 Jul, 2AM (local time) - 7ft (2.2m), 11s period, ENE swell with cross-offshore winds.
- Most powerful swell: Tuesday 28 Jul, 2PM (local time) - 8ft (2.4m), 13s period, E swell with 1,999 kJ wave energy.
- Next surfable swell (1★+): Wednesday 29 Jul, 2AM (local time) - 7ft (2.2m), 11s period with ENE swell.
Best Forecast Surf Conditions for Sandy Beach this week:
The surf forecast for Sandy Beach over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Wednesday (Jul 29) at 2AM. The primary swell is predicted to be 2.2m and 11s period with a secondary swell of 1.0m and 6s. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Sandy Beach in the next 16 days are 2.4m 13s and forecast to arrive on Tuesday (Jul 28) at 2PM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.7m 15s period and expected on Friday (Jul 31) at 5PM.
| Wave Type | Time (HST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 2AM (Wed 29th Jul) | 7ft (2.2m) 11s |
| Best Surf | 2AM (Wed 29th Jul) | 7ft (2.2m) 11s |
| Most Powerful | 2PM (Tue 28th Jul) | 8ft (2.4m) 13s |
Table - best surf conditions forecast for Sandy Beach over the next 16 days.
The Lowdown
Alright, this is Rusty, your local surf check, coming to you from Sandy Beach. Let’s get into it.
Straight up, the next 16 days are looking like a real mixed bag, and honestly, a bit of a frustrating one for the most part. We’ve got a whole lot of days where the wind is just going to mess things up, making it not worth paddling out. The best of the bunch is a very specific window, and even then, it’s not a classic.
The action starts on Monday, 27th of July. The water is sitting at 80°, which is pretty normal for this time of year. Swell is coming from the east at 5ft, with a 13-second period, so there’s some decent energy in the water, but a fresh cross-shore from the NE at 19 mph is making it lumpy and choppy. It’s a no-go.
Tuesday, 28th of July, is a different story. This is the standout of the whole outlook. The swell builds to 7ft in the morning, maxing out around 8ft in the afternoon, straight out of the east with a solid 13-second period. The combined energy is strong. More importantly, the wind swings around to a cross-offshore from the NNE at 19 mph. That’s cleaning it up nicely. This is a proper, powerful east swell with clean conditions. Keep in mind, at 8ft, this is getting into expert territory, but the quality will be there. The east swell is a good match for the break’s optimum direction. Crowds are possible here, so get in early.
Wednesday, 29th of July, is the last hurrah before the trade winds ruin everything. The morning is a bit tricky with a light cross-on from the south, but the swell is still a fun 7ft. The afternoon is where it’s at though. The wind drops to glassy, the swell settles to a clean 5ft from the ENE, and the energy is moderate. It’s a fantastic, clean session for the intermediate crew.
Then, from Thursday, 30th of July, right through to the 10th of August, it’s a brutal stretch of poor surf. The wind is a relentless strong breeze from the ENE, hammering the beach with messy cross-shore and cross-onshore conditions. The swell sticks around, often between 5ft and 8ft, but the short period (mostly 7-8 seconds) and howling wind make it unrideable. This setup is honestly more interesting for kite surfing than paddle surfing. There’s a solid 12-day gap here with no real recommendations.
The final few days, 10th and 11th of August, show a glimmer of hope. A new, very long-period swell from the SSW arrives, with a period of 15-17 seconds. The swell height is small, around 3ft, and the wind finally looks better. The 11th of August morning has a light onshore, but the afternoon is a gentle cross-shore. This long-period groundswell is better suited for a point or reef break, but at Sandy Beach (a beach and reef), it might just offer some clean, small waves. It’s a long-range call, so less certain, but worth keeping an eye on for a sneaky session.
To sum it up, your best bet is Tuesday, 28th of July, for the biggest, cleanest east swell, followed by Wednesday afternoon, the 29th, for the glassy, smaller waves. After that, you’re looking at the second week, hoping that long-period SSW pulse on the 11th of August shapes up.
Rusty.
Short Range ForecastLight rain (total 2mm), mostly falling on Tue night. Warm (max 27°C on Wed afternoon, min 25°C on Mon afternoon). Winds decreasing (fresh winds from the NE on Mon night, calm by Wed morning). | Days 5-7 Weather SummaryMostly dry. Warm (max 27°C on Thu afternoon, min 24°C on Sat night). Winds increasing (moderate winds from the E on Thu afternoon, strong winds from the ENE by Sat morning). | |||||||||||||||||||
Mon 27 | Tuesday 28 | Wednesday 29 | Thursday 30 | Friday 31 | Saturday 1 | Sunday 2 | ||||||||||||||
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) | E 13 | E 13 | E 13 | E 13 | ENE 11 | ENE 10 | ENE 9 | ENE 8 | ENE 8 | SSW 18 | E 7 | E 8 | ENE 8 | E 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 |
Wave Graph | ||||||||||||||||||||
792 | 1391 | 1667 | 1872 | 1111 | 718 | 381 | 284 | 246 | 222 | 285 | 329 | 426 | 858 | 893 | 850 | 893 | 678 | 682 | 578 | |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross | cross-off | cross-off | cross-off | cross-on | glassy | on | cross | cross-on | cross-on | cross-on | cross | cross | cross-on | cross | cross-on | cross | cross | cross-on |
High Tide | 2:28PM0.68m | 2:09AM0.22m | 2:58PM0.69m | 2:46AM0.24m | 3:28PM0.69m | 3:26AM0.26m | 3:57PM0.68m | 4:08AM0.30m | 4:25PM0.65m | 4:55AM0.33m | 4:53PM0.60m | 5:48AM0.38m | 5:22PM0.53m | |||||||
Low Tide | 10:01PM0.09m | 7:44AM-0.00m | 10:25PM0.09m | 8:21AM0.00m | 10:49PM0.08m | 8:58AM0.02m | 11:13PM0.07m | 9:38AM0.05m | 11:37PM0.06m | 10:23AM0.11m | 00:02AM0.05m | 11:17AM0.16m | 00:29AM0.04m | |||||||
— | — | 6:01 | — | — | 6:01 | — | — | 6:03 | — | — | 6:03 | — | — | 6:03 | — | — | 6:03 | — | — | |
7:12 | — | — | 7:10 | — | — | 7:10 | — | — | 7:09 | — | — | 7:09 | — | — | 7:08 | — | — | 7:08 | — | |
mm | — | — | — | — | 1 | — | — | 1 | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 25 | 25 | 25 | 26 | 25 | 26 | 27 | 26 | 26 | 27 | 26 | 26 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 |
Feels °C | 24 | 24 | 25 | 25 | 25 | 29 | 30 | 29 | 28 | 26 | 25 | 23 | 21 | 21 | 20 | 20 | 21 | 21 | 21 | 22 |
Swell 1 Height (m) Direction Period (s) | E 13 | E 13 | E 13 | E 13 | ENE 11 | ENE 10 | ENE 9 | ENE 8 | S 14 | ENE 8 | S 13 | S 12 | E 16 | E 14 | E 14 | E 14 | E 14 | E 14 | E 14 | E 13 |
792 | 1391 | 1667 | 1872 | 1111 | 718 | 381 | 284 | 181 | 173 | 166 | 113 | 301 | 202 | 264 | 253 | 257 | 187 | 198 | 126 | |
Swell 2 Height (m) Direction Period (s) | SSW 15 | SSW 14 | SSW 14 | S 14 | NNE 6 | S 14 | S 14 | S 14 | SW 18 | S 13 | SSW 16 | SW 16 | SW 15 | SW 15 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 13 | SSW 13 |
222 | 213 | 143 | 179 | 68 | 195 | 195 | 184 | 154 | 222 | 177 | 206 | 239 | 220 | 127 | 123 | 131 | 133 | 68 | 56 | |
Swell 3 Height (m) Direction Period (s) | S 10 | SE 11 | SSE 10 | SSE 10 | SSW 14 | SW 21 | SSW 20 | SW 19 | E 19 | SSW 18 | E 16 | E 15 | S 12 | SSW 12 | S 12 | S 11 | S 11 | N 9 | S 11 | SW 13 |
8 | 4 | 10 | 19 | 195 | 17 | 37 | 95 | 29 | 207 | 127 | 159 | 106 | 47 | 43 | 39 | 22 | 14 | 9 | 42 | |
Wind waves Height (m) Direction Period (s) | NE 7 | NE 7 | NNE 8 | NNE 9 | — | — | — | — | ENE 8 | — | E 7 | E 8 | ENE 8 | E 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 |
262 | 194 | 154 | 190 | — | — | — | — | 246 | — | 285 | 329 | 426 | 858 | 893 | 850 | 893 | 678 | 682 | 578 | |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 47 | 17 | 16 | 23 | 0 | 1 | 0 | 7 | 42 | 47 | 47 | 55 | 110 | 110 | 132 | 110 | 57 | 57 | 57 | 50 |
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.










