Surf Forecasts:
Rockpiles surf forecast from 20 Jul 2026:
- Most powerful swell: Sunday 26 Jul, 5AM (local time) - 5ft (1.6m), 17s period, E swell with 1,383 kJ wave energy.
Best Forecast Surf Conditions for Rockpiles this week:
The most powerful waves expected at Rockpiles in the next 16 days are 1.6m 17s and forecast to arrive on Sunday (Jul 26) at 5AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 2.0m 8s period and expected on Saturday (Jul 25) at 5PM.
| Wave Type | Time (HST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 5AM (Sun 26th Jul) | 5ft (1.6m) 17s |
Table - best surf conditions forecast for Rockpiles over the next 16 days.
The Lowdown
Alright, let’s break it down. Rockpiles is looking at a bumpy ride over the next 16 days. The water is about 80°F, which is normal for this time of year, so no shocks there.
The first real window to paddle out is Monday, July 28th. Before that, from the 20th through the 27th, it’s a grind. The swell is small, the wind is blowing 15 to 25 mph, and the conditions are just not worth it. A few waist-high waves, but the energy is weak and the period is all over the place. Leave it.
The standout is Monday morning, July 28th. Swell is 6 ft from the ENE at 13 seconds, with a moderate energy reading. The wind is light at 9 mph, keeping the surface glassy. That’s a reef break, so those long-period lines will have good shape. It’s a bit too much for beginners, but for the experienced surfers, this is the one.
Then Wednesday, July 29th, is the real gem. Morning has 6 ft from the ENE with an 11-second period, light breeze under 7 mph, and solid energy. The afternoon holds the same size with a gentle 9 mph cross-off. The waves will be clean and well-shaped. Crowds are possible, but it won’t be a zoo.
Thursday the 30th still has a clean 5 ft in the morning, but the afternoon drops off hard. After that, it’s back to marginal conditions with strong wind and short-period junk through the first week of August. The swell picks up again on the 2nd and 3rd, but the wind is too strong and the waves are choppy.
So, mark your calendar for the 28th and 29th of July. That’s where the magic is.
Rusty
Short Range ForecastLight rain (total 7mm), mostly falling on Tue morning. Warm (max 27°C on Mon afternoon, min 24°C on Wed night). Mainly fresh winds. | Days 4-6 Weather SummaryLight rain (total 2mm), mostly falling on Thu morning. Warm (max 26°C on Sat morning, min 24°C on Fri night). Winds decreasing (strong winds from the ENE on Thu afternoon, light winds from the NE by Sat night). | ||||||||||||||||||||
Monday 20 | Tuesday 21 | Wednesday 22 | Thursday 23 | Friday 24 | Saturday 25 | Sunday 26 | |||||||||||||||
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 | S 16 | S 15 | S 14 | S 14 | S 13 | SSW 24 | SSW 23 | SSW 22 | E 7 | SSW 20 | SSW 18 | ENE 7 | ENE 7 | ENE 7 | ENE 8 | E 18 | E 17 | E 16 | E 16 | E 15 |
Wave Graph  | |||||||||||||||||||||
 kJ | 161 | 321 | 339 | 329 | 311 | 277 | 317 | 426 | 363 | 412 | 395 | 464 | 358 | 482 | 558 | 414 | 607 | 1275 | 1301 | 1253 | 1275 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-off | cross-off | cross | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off |
High Tide | 10:04AM0.43m | 8:19PM0.34m | 11:13AM0.49m | 8:56PM0.27m | 12:12PM0.54m | 10:06PM0.22m | 1:02PM0.59m | 11:46PM0.19m | 1:44PM0.62m | 00:59AM0.18m | 2:22PM0.66m | 1:51AM0.19m | 2:56PM0.68m | 2:32AM0.21m | |||||||
Low Tide | 3:52PM0.27m | 3:23AM0.04m | 6:20PM0.26m | 4:02AM0.05m | 8:25PM0.21m | 9:13PM0.17m | 5:34AM0.05m | 9:41PM0.14m | 6:23AM0.04m | 10:05PM0.12m | 7:08AM0.02m | 10:27PM0.11m | |||||||||
 | |  |  |  | | | |  | | | | | |  | | | | | | | |
 | 6:00 | — | — | 6:00 | — | — | 6:00 | — | — | 6:01 | — | — | 6:01 | — | — | 6:01 | — | — | 6:01 | — | — |
 | — | 7:15 | — | — | 7:14 | — | — | 7:14 | — | — | 7:14 | — | — | 7:13 | — | — | 7:13 | — | — | 7:13 | — |
mm | — | — | 1 | 2 | — | 4 | — | — | — | 1 | — | — | — | — | — | 1 | — | — | — | — | — |
Temp °C | 26 | 27 | 25 | 26 | 26 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 26 | 26 | 25 | 25 | 25 | 24 |
Feels °C | 25 | 25 | 24 | 26 | 24 | 24 | 22 | 22 | 23 | 21 | 21 | 22 | 22 | 21 | 22 | 25 | 23 | 22 | 23 | 22 | 22 |
Swell 1 Height (m) Direction Period (s) | S 14 | S 16 | S 15 | ENE 7 | S 14 | S 13 | S 13 | E 11 | E 12 | SSW 20 | SSW 20 | SSW 18 | SSW 18 | SSW 17 | SSW 16 | SSW 19 | E 18 | E 17 | E 16 | E 16 | E 15 |
| kJ | 142 | 321 | 339 | 153 | 311 | 277 | 215 | 123 | 139 | 412 | 395 | 464 | 329 | 340 | 232 | 391 | 607 | 1275 | 1301 | 1253 | 1275 |
Swell 2 Height (m) Direction Period (s) | S 16 | SW 18 | SW 16 | S 14 | SW 16 | E 13 | E 12 | S 10 | S 13 | S 12 | S 11 | S 13 | S 12 | S 12 | S 20 | SSW 16 | SSW 18 | SSW 18 | SSW 16 | S 16 | SSW 16 |
| kJ | 135 | 81 | 69 | 329 | 67 | 121 | 138 | 78 | 157 | 97 | 90 | 85 | 105 | 102 | 299 | 223 | 572 | 547 | 469 | 522 | 416 |
Swell 3 Height (m) Direction Period (s) | SW 18 | W 12 | E 12 | SW 17 | E 11 | SW 15 | SSW 24 | SSW 23 | SSW 22 | SSW 16 | SW 16 | S 11 | SSW 15 | S 21 | E 16 | E 14 | S 11 | S 11 | S 11 | SE 12 | SE 11 |
| kJ | 83 | 11 | 12 | 72 | 39 | 60 | 317 | 426 | 363 | 99 | 127 | 56 | 93 | 231 | 181 | 148 | 39 | 37 | 35 | 5 | 5 |
Wind waves Height (m) Direction Period (s) | ENE 8 | ENE 7 | ENE 7 | — | ENE 7 | ENE 7 | ENE 7 | ENE 6 | ENE 7 | E 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 8 | ENE 8 | ENE 8 | NE 8 | NE 8 | NE 8 |
| kJ | 161 | 169 | 197 | — | 132 | 176 | 171 | 145 | 240 | 377 | 268 | 461 | 358 | 482 | 558 | 414 | 477 | 452 | 353 | 335 | 276 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 1 | 30 | 1 | 30 | 30 | 30 | 31 | 33 | 30 | 38 | 45 | 31 | 31 | 41 | 30 | 28 | 39 | 1 | 30 | 127 | 1 |
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