Surf Forecasts:
Rockpiles surf forecast from 7 Sep 2026:
- Best quality surf: Monday 7 Sep, 5AM (local time) - 7.5ft (2.3m), 12s period, ENE swell with cross-offshore winds.
- Most powerful swell: Tuesday 8 Sep, 2AM (local time) - 13ft (4.0m), 14s period, SW swell with 5,715 kJ wave energy.
- Next surfable swell (1★+): Monday 7 Sep, 5AM (local time) - 7.5ft (2.3m), 12s period with ENE swell.
Best Forecast Surf Conditions for Rockpiles this week:
The surf forecast for Rockpiles over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Monday (Sep 07) at 5AM. The primary swell is predicted to be 2.3m and 12s period with a secondary swell of 1.5m and 12s. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Rockpiles in the next 16 days are 4.0m 14s and forecast to arrive on Tuesday (Sep 08) at 2AM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.7m 10s period and expected on Tuesday (Sep 08) at 2PM.
| Wave Type | Time (HST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 5AM (Mon 7th Sep) | 7.5ft (2.3m) 12s |
| Best Surf | 5AM (Mon 7th Sep) | 7.5ft (2.3m) 12s |
| Most Powerful | 2AM (Tue 8th Sep) | 13ft (4.0m) 14s |
Table - best surf conditions forecast for Rockpiles over the next 16 days.
The Lowdown
Alright, Rusty here, let’s break down the forecast for Rockpiles.
Right off the bat, we’ve got waves on Monday, September 7th, but it’s not great. You’re looking at 8ft of short-period ENE swell, cross winds, and storm threats – a pass for the hardcore. The combined energy is strong, ringing in at 2712. The rest of the week goes quiet quick, with Tuesday and Wednesday offering nothing but small, choppy leftovers. Thursday the 10th cleans up with a cross-off breeze, but the swell’s dropped to 5ft with a terrible 7-second period, so it’s gutless.
We hit a real flat spell from Friday the 11th all the way through the start of the next week. By Monday the 14th in the afternoon, a whisper of a long-period 22-second groundswell from the SSW shows up at just 2ft. It’s clean with a light breeze, but it’s tiny. That energy reading of 257 shows there’s something there, though. That tiny SSW groundswell builds very slowly through Tuesday the 15th and Wednesday the 16th, staying under 3ft. The wind stays light and cross-off, but it’s barely worth wetting your wetsuit for.
The real standout, the one session to circle, is Saturday the 19th. We’ve got a clean, 3ft SSW groundswell with a solid 16-second period. The wind goes super light, almost glassy in the afternoon, and the combined energy hits 898 – the highest reading of the whole forecast. For a reef like Rockpiles, this long-period SSW is the money direction, and it’s gonna be absolutely clean. It won’t be big, but the quality will be top shelf. Just know it can get a few people out there sometimes, so paddle out early.
After that, Sunday the 20th drops back to small stuff, and Monday the 21st gets a bit interesting again in the afternoon with 5ft of short-period ENE windswell and glassy conditions, but the period is only 8 seconds. Tuesday the 22nd shows 6ft of the same short-period ENE but with a cross breeze.
Honestly, for the first week and a half, you might as well stay on land. The surf is small, weak, or messy. The one true highlight, and the only one I’d wake up early for, is that Saturday the 19th. That’s your day.
Rusty.
Short Range ForecastHeavy rain (total 32mm), heaviest during Sun night. Warm (max 27°C on Mon morning, min 25°C on Sun night). Winds decreasing (strong winds from the SSE on Mon night, calm by Tue night). | Days 5-7 Weather SummaryLight rain (total 3mm), mostly falling on Wed night. Warm (max 27°C on Wed night, min 25°C on Thu night). Mainly fresh winds. | ||||||||||||||||||
Monday 7 | Tuesday 8 | Wednesday 9 | Thursday 10 | Friday 11 | Saturday 12 | ||||||||||||||
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 12 | ENE 12 | ENE 12 | SW 14 | ENE 11 | ENE 11 | ENE 10 | SSW 14 | SSW 13 | E 13 | ENE 7 | ENE 7 | SW 16 | SW 16 | SW 15 | ENE 11 | SW 15 | ENE 10 | ENE 10 |
Wave Graph  | |||||||||||||||||||
 kJ | 1461 | 1703 | 1590 | 5715 | 886 | 608 | 378 | 269 | 257 | 176 | 242 | 197 | 211 | 206 | 229 | 256 | 242 | 173 | 210 |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross | cross | cross-on | on | cross-on | glassy | cross-on | cross-on | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off |
High Tide | 1:21AM0.26m | 1:47PM0.73m | 2:09AM0.32m | 2:28PM0.72m | 2:51AM0.39m | 3:05PM0.69m | 3:32AM0.45m | 3:39PM0.64m | 4:11AM0.50m | 4:12PM0.57m | 4:51AM0.54m | 4:42PM0.50m | |||||||
Low Tide | 8:31PM0.10m | 6:25AM0.07m | 8:57PM0.08m | 7:26AM0.06m | 9:22PM0.06m | 8:21AM0.06m | 9:46PM0.05m | 9:12AM0.07m | 10:10PM0.04m | 10:02AM0.10m | 10:33PM0.04m | 10:52AM0.13m | 10:56PM0.05m | ||||||
 |  | |  |  |  |  | | | |  | | | | | | | | | |
 | — | 6:16 | — | — | 6:16 | — | — | 6:16 | — | — | 6:16 | — | — | 6:16 | — | — | 6:16 | — | — |
 | 6:43 | — | 6:42 | — | — | 6:40 | — | — | 6:39 | — | — | 6:38 | — | — | 6:37 | — | — | 6:37 | — |
mm | 13 | 2 | 3 | 9 | 4 | — | — | — | 1 | 3 | — | — | — | — | — | — | — | — | — |
Temp °C | 26 | 27 | 27 | 27 | 27 | 27 | 27 | 27 | 27 | 27 | 26 | 26 | 25 | 26 | 26 | 25 | 25 | 26 | 25 |
Feels °C | 25 | 27 | 27 | 26 | 26 | 27 | 31 | 30 | 29 | 30 | 25 | 25 | 25 | 25 | 24 | 24 | 25 | 26 | 25 |
Swell 1 Height (m) Direction Period (s) | ENE 12 | SW 12 | SSW 13 | SW 14 | WSW 10 | ENE 11 | ENE 10 | ENE 9 | ENE 8 | E 13 | E 12 | E 12 | SW 16 | ENE 11 | SW 15 | ENE 11 | ENE 10 | ENE 10 | ENE 10 |
| kJ | 1461 | 488 | 1370 | 5715 | 886 | 608 | 378 | 194 | 188 | 156 | 141 | 101 | 211 | 167 | 229 | 256 | 214 | 173 | 210 |
Swell 2 Height (m) Direction Period (s) | SSW 14 | SSW 16 | SSW 16 | ENE 12 | ENE 11 | W 10 | SSW 8 | SSW 14 | SSW 13 | SSW 13 | SSW 13 | SSW 13 | E 11 | SW 16 | SW 9 | SW 15 | SW 15 | NE 9 | NE 9 |
| kJ | 1048 | 454 | 575 | 1190 | 870 | 362 | 159 | 269 | 257 | 176 | 133 | 131 | 93 | 206 | 29 | 226 | 242 | 75 | 75 |
Swell 3 Height (m) Direction Period (s) | S 18 | SSE 7 | NW 13 | SSW 15 | SSW 15 | SSW 14 | SSW 14 | SSW 8 | E 13 | SSW 7 | SW 16 | SW 18 | SW 11 | SW 10 | SSW 11 | NNE 7 | NNE 8 | SSW 16 | SSW 13 |
| kJ | 243 | 67 | 7 | 487 | 498 | 371 | 356 | 58 | 166 | 16 | 133 | 155 | 55 | 34 | 43 | 21 | 47 | 99 | 68 |
Wind waves Height (m) Direction Period (s) | — | ENE 12 | ENE 12 | SSE 7 | S 9 | SSW 8 | — | — | — | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 8 | — | — | — | — |
| kJ | — | 1703 | 1590 | 560 | 709 | 398 | — | — | — | 157 | 242 | 197 | 173 | 83 | 183 | — | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 13 | 249 | 58 | 79 | 143 | 20 | 0 | 1 | 1 | 1 | 30 | 1 | 1 | 1 | 1 | 1 | 30 | 1 | 0 |
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)
FREE! Surf-Forecast.com widget for your website
The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Rockpiles surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.
Information about the Rockpiles Surf forecast
The above surf forecast table for Rockpiles provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Rockpiles can be found by selecting the local surf guide option on the grey menu. Our Rockpiles 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 (Rockpiles) 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 Rockpiles 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.
Rockpiles is 4 km (2 miles) from Honolulu. If you plan a vacation in Oahu, look for hotels and other accommodation in Honolulu. Honolulu has rooms for a wide range of budgets as well as car hire and transport links.
Nearest