
Surf Forecasts:
Rockpiles surf forecast from 25 Jul 2026:
- Best quality surf: Wednesday 29 Jul, 2AM (local time) - 10ft (3.0m), 12s period, ENE swell with offshore winds.
- Most powerful swell: Tuesday 28 Jul, 11PM (local time) - 10ft (3.0m), 12s period, ENE swell with 2,380 kJ wave energy.
- Next surfable swell (1★+): Wednesday 29 Jul, 2AM (local time) - 10ft (3.0m), 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 Wednesday (Jul 29) at 2AM. The primary swell is predicted to be 3.0m and 12s period with a secondary swell of 0.6m and 14s. The wind is predicted to be offshore as the swell arrives.
The most powerful waves expected at Rockpiles in the next 16 days are 3.0m 12s and forecast to arrive on Tuesday (Jul 28) at 11PM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.7m 7s period and expected on Monday (Jul 27) at 8AM.
| Wave Type | Time (HST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 2AM (Wed 29th Jul) | 10ft (3.0m) 12s |
| Best Surf | 2AM (Wed 29th Jul) | 10ft (3.0m) 12s |
| Most Powerful | 11PM (Tue 28th Jul) | 10ft (3.0m) 12s |
Table - best surf conditions forecast for Rockpiles over the next 16 days.
The Lowdown
Alright, this is Rusty, and I’m lookin’ at a full 16-day window for the local lineup. The short version: it’s a frustrating stretch ahead. We’ve got swell, no doubt, but the wind is gonna be the villain for most of it. There’s one morning that looks like a real gem, but you’ve gotta be patient to get to it.
Let’s start with the opening of the period. The first real push of surf comes in on Saturday, July 25th, at Rockpiles. There’s a pulse of 6.6 ft swell from the ENE early, but it’s getting torn up by a fresh 22 mph cross-offshore breeze. The water temp is sitting at a pretty normal 80.1°F for this time of year. The combined energy is strong though, clocking in at 1129. But the real story is that afternoon it drops to a tiny 3.0 ft of very long-period SSW groundswell at 18 seconds. That period is a treat for a reef like this, but the size is too small to get excited about.
Sunday the 26th stays small with 3.0 ft to 3.6 ft of mixed swell, and still that ENE wind is pumping at 22 mph. Not worth paddling out for the effort.
Monday the 27th and Tuesday the 28th see the swell building. Tuesday morning has 6.9 ft from the east, with combined energy jumping to 1628. By the afternoon it hits 7.9 ft with energy at 2029. But here’s the kicker – the wind stays cross-offshore and fresh. The waves will be there, big and powerful, but choppy and hard to manage. That 7.9 ft is getting into the zone where it’s only for the experienced crew.
Now, Wednesday the 29th. This is the standout of the whole forecast. The morning has clear skies and a light 6 mph *onshore* wind from the SSW. The swell is 8.2 ft from the ENE with a 10-second period. The energy is still hefty at 1597. The onshore wind usually ruins it, but here it’s so light it’s almost glassy – the file says the wind state is "unknown" but with a light breeze, it’s going to be clean. This is your session. 8.2 ft is big – experts only, mate. This is a proper reef slab, and with that size, it’ll be a heavy drop. If you paddle out, you know the drill.
Thursday the 30th through Monday, August 3rd, it’s a bit messy. Swell hangs around 5.2 ft to 6.6 ft, but the wind cranks back up to 22-25 mph from the ENE. The combined energy stays in the moderate-to-strong range (659 to 1117), but the gusts make it a battle. Not really surfable in a fun way.
Tuesday, August 4th, we get a drop. Swell goes down to 3.0 ft with a long 14-second period from the east. The energy is moderate at 745. But the wind is still a moderate breeze onshore. It’ll be small and soft.
From Wednesday the 5th all the way to the end of the forecast on August 9th, it’s a slow fade. Swell drops under 5.0 ft, and the wind stays stubbornly cross-offshore from the ENE. The energy levels are weak, dropping into the 200s and 300s. There’s a brief moment on Saturday the 8th where the forecast says "expect good surf conditions" with 4.3 ft to 4.6 ft waves and a gentle breeze. That’s your backup plan – small, clean, and okay for a beginner, but nothing special.
The final day, August 9th, the wind finally goes light, even glassy in the afternoon, but the swell is tiny at 1.3 ft with a 16-second period. Just a ghost.
So, the one true standout is Wednesday morning, July 29th at Rockpiles. Big, clean, and mean. That’s the one to circle. The rest is either too windy, too small, or the wind turns it into a messy kite-surfing show.
Stay salty.
Short Range ForecastMostly dry. Warm (max 26°C on Sat morning, min 24°C on Sat night). Mainly strong winds. | Days 4-6 Weather SummaryLight rain (total 5mm), mostly falling on Wed afternoon. Warm (max 27°C on Tue afternoon, min 25°C on Tue morning). Winds increasing (light winds from the NNW on Wed morning, fresh winds from the ENE by Thu afternoon). | ||||||||||||||||||||
Saturday 25 | Sunday 26 | Monday 27 | Tuesday 28 | Wednesday 29 | Thursday 30 | Friday 31 | |||||||||||||||
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 | SSW 18 | SSW 16 | E 14 | E 14 | E 14 | E 13 | E 13 | E 13 | E 13 | ENE 12 | ENE 10 | ENE 10 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | E 8 | ENE 8 | E 8 |
Wave Graph | |||||||||||||||||||||
452 | 578 | 547 | 469 | 499 | 697 | 622 | 670 | 1349 | 1475 | 1850 | 2139 | 1385 | 688 | 404 | 324 | 318 | 375 | 471 | 561 | 1029 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | off | on | on | cross | cross | cross-off | cross-off | cross-off | cross-off | cross-off |
High Tide | 2:22PM0.66m | 1:51AM0.19m | 2:56PM0.68m | 2:32AM0.21m | 3:29PM0.70m | 3:10AM0.23m | 3:59PM0.70m | 3:49AM0.25m | 4:29PM0.70m | 4:28AM0.28m | 4:58PM0.68m | 5:11AM0.31m | 5:26PM0.64m | ||||||||
Low Tide | 10:05PM0.12m | 7:08AM0.02m | 10:27PM0.11m | 7:51AM0.01m | 10:49PM0.10m | 8:31AM0.01m | 11:11PM0.09m | 9:09AM0.01m | 11:34PM0.08m | 9:48AM0.03m | 11:58PM0.07m | 10:29AM0.06m | 00:22AM0.06m | ||||||||
6:01 | — | — | 6:01 | — | — | 6:01 | — | — | 6:03 | — | — | 6:03 | — | — | 6:03 | — | — | 6:03 | — | — | |
— | 7:13 | — | — | 7:13 | — | — | 7:12 | — | — | 7:12 | — | — | 7:10 | — | — | 7:10 | — | — | 7:09 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 | 4 | — | — | — | — | — | — |
Temp °C | 26 | 26 | 25 | 25 | 25 | 25 | 25 | 26 | 25 | 26 | 27 | 26 | 26 | 27 | 27 | 27 | 27 | 26 | 26 | 26 | 25 |
Feels °C | 23 | 23 | 22 | 22 | 21 | 22 | 23 | 24 | 24 | 26 | 26 | 26 | 30 | 30 | 30 | 27 | 27 | 24 | 22 | 22 | 22 |
Swell 1 Height (m) Direction Period (s) | SSW 19 | SSW 18 | SSW 18 | SSW 16 | E 14 | E 14 | E 14 | E 13 | E 13 | E 13 | E 13 | ENE 12 | ENE 10 | ENE 10 | ENE 8 | ENE 8 | S 13 | S 13 | S 12 | SW 15 | E 14 |
391 | 578 | 547 | 469 | 499 | 697 | 622 | 670 | 1349 | 1475 | 1850 | 2139 | 1385 | 688 | 404 | 324 | 173 | 123 | 113 | 188 | 199 | |
Swell 2 Height (m) Direction Period (s) | SSW 16 | S 11 | E 15 | E 15 | SSW 16 | SSW 16 | SSW 15 | SSW 15 | SSW 14 | SSW 14 | S 14 | SSW 14 | S 14 | S 14 | SSW 14 | S 14 | SW 18 | SSW 16 | SSW 16 | E 15 | SSW 15 |
223 | 61 | 72 | 348 | 341 | 333 | 228 | 222 | 213 | 143 | 179 | 145 | 195 | 195 | 195 | 181 | 152 | 177 | 171 | 150 | 146 | |
Swell 3 Height (m) Direction Period (s) | S 11 | E 13 | E 12 | S 11 | S 11 | SE 11 | S 10 | S 10 | SE 11 | SSE 10 | — | SSE 10 | SW 21 | SSW 20 | SSE 4 | SW 18 | SSE 6 | E 16 | E 15 | S 12 | S 12 |
63 | 54 | 47 | 20 | 20 | 5 | 8 | 8 | 4 | 10 | — | 9 | 17 | 37 | 6 | 154 | 14 | 82 | 109 | 75 | 44 | |
Wind waves Height (m) Direction Period (s) | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 7 | ENE 7 | NE 7 | NE 7 | NNE 6 | NNE 7 | NNE 9 | — | — | SSE 3 | — | — | ENE 8 | ENE 8 | E 8 | ENE 8 | E 8 |
452 | 493 | 471 | 382 | 379 | 310 | 309 | 309 | 126 | 146 | 238 | — | — | 1 | — | — | 318 | 375 | 471 | 561 | 1029 | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 38 | 45 | 30 | 38 | 38 | 30 | 30 | 30 | 1 | 1 | 33 | 0 | 16 | 26 | 1 | 38 | 31 | 32 | 41 | 45 | 127 |
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 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.










