
Surf Forecasts:
Rockpiles surf forecast from 2 Sep 2026:
- Best quality surf: Monday 7 Sep, 2AM (local time) - 7ft (2.1m), 12s period, ENE swell with cross-offshore winds.
- Most powerful swell: Tuesday 8 Sep, 2PM (local time) - 16ft (5.0m), 14s period, SSW swell with 10,059 kJ wave energy.
- Next surfable swell (1★+): Monday 7 Sep, 2AM (local time) - 7ft (2.1m), 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 2AM. The primary swell is predicted to be 2.1m and 12s period with a secondary swell of 1.6m 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 5.0m 14s and forecast to arrive on Tuesday (Sep 08) at 2PM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.3m 6s period and expected on Monday (Sep 07) at 8PM.
| Wave Type | Time (HST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 2AM (Mon 7th Sep) | 7ft (2.1m) 12s |
| Best Surf | 2AM (Mon 7th Sep) | 7ft (2.1m) 12s |
| Most Powerful | 2PM (Tue 8th Sep) | 16ft (5.0m) 14s |
Table - best surf conditions forecast for Rockpiles over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let's have a look at what's on the cards for Rockpiles.
Right off the bat, we've got a solid run of swell on the way, but it's not all good news. The first few days are a bit of a write-off thanks to a strong cross-off breeze. The water's sitting at a warm 81°, which is pretty much bang on average for this time of year, so that's a nice comfort while you're waiting.
From Wednesday the 4th through to the start of the second week, the swell is pumping, but the conditions are messy. The wind is a persistent cross-off from the ENE, which is usually a good thing for this reef, but the strength of it is just too much. You'll see solid 7ft+ swell from the ENE with a fairly long period, giving a lot of energy, but it's all a bit of a battle. The standout for this stretch is the Monday afternoon session on the 7th. The energy jumps up massively, with a solid 8ft ENE swell at 13 seconds, and the cross-off wind is only a moderate breeze. That's the best call in the first week, but it's still a bit of a gamble with the risk of thunderstorms.
The beginning of the second week, around the 8th and 9th, gets ugly. That swell jumps to 15ft from the SW, but with a near-gale cross-onshore wind, it's blown out and dangerous. That's a day for the experts only, if anyone, and honestly, the setup looks more interesting for kite surfing than paddle surfing.
Now, the real magic window appears from the 12th of September onwards. The swell drops back to a more manageable 5ft to 5ft from the ENE, but look at that wind. The Saturday afternoon session on the 12th is a gem: only a 3 mph cross-off breeze, making for clean waves. The best of the bunch, though, is the Sunday afternoon on the 13th. The wind goes glassy, absolutely dead calm, with a 5ft ENE swell. That's as clean as it gets. The Monday afternoon on the 14th is also a standout with a glassy sea, but the swell is a tiny 2ft from the SW, albeit with a very long 24-second period, which will be like a slow rolling dream at this reef. For the true standout, I'm calling the Sunday 13th afternoon session. The most consistent swell size combined with perfect, glassy conditions. Just be aware that this is a reef break that can get a bit crowded sometimes, so get there early.
As we head into the final days of the forecast, the swell drops right off, and the wind picks up again. It's a classic case of a promising start, a messy middle, and a beautiful, clean finish.
Rusty.
Short Range ForecastSome drizzle, heaviest during Wed morning. Warm (max 26°C on Wed morning, min 25°C on Wed morning). Mainly strong winds. | Days 4-6 Weather SummaryModerate rain (total 16mm), heaviest on Sun night. Warm (max 27°C on Sun afternoon, min 23°C on Sun night). Winds increasing (light winds from the ESE on Sun night, strong winds from the SE by Mon night). | ||||||||||||||||||||
Wednesday 2 | Thursday 3 | Friday 4 | Saturday 5 | Sunday 6 | Monday 7 | Tuesday 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 7 | ENE 7 | ENE 7 | S 12 | E 14 | S 13 | ENE 14 | ENE 13 | ENE 13 | ENE 12 | E 12 | ENE 12 | ENE 13 | ENE 13 | SW 14 | SW 15 | SSW 13 | SSW 10 |
Wave Graph | |||||||||||||||||||||
487 | 502 | 627 | 440 | 588 | 498 | 513 | 569 | 620 | 1858 | 1467 | 1467 | 1336 | 1062 | 1180 | 1451 | 1886 | 2090 | 8588 | 7274 | 1225 | |
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 | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross | cross-on | on | cross-on |
High Tide | 8:21AM0.59m | 6:54PM0.28m | 9:39AM0.62m | 7:57PM0.22m | 10:58AM0.66m | 10:35PM0.19m | 12:05PM0.69m | 00:18AM0.21m | 1:00PM0.73m | 1:21AM0.26m | 1:47PM0.73m | 2:09AM0.32m | 2:28PM0.72m | 2:51AM0.39m | |||||||
Low Tide | 3:38PM0.25m | 1:25AM0.06m | 6:22PM0.22m | 2:24AM0.08m | 7:30PM0.17m | 3:46AM0.09m | 8:03PM0.13m | 5:11AM0.08m | 8:31PM0.10m | 6:25AM0.07m | 8:57PM0.08m | 7:26AM0.06m | 9:22PM0.06m | ||||||||
6:15 | — | — | 6:15 | — | — | 6:15 | — | — | 6:15 | — | — | 6:16 | — | — | 6:16 | — | — | 6:16 | — | — | |
— | 6:45 | — | — | 6:45 | — | — | 6:44 | — | — | 6:44 | — | — | 6:43 | — | — | 6:42 | — | — | 6:40 | — | |
mm | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | 5 | 2 | 5 | 4 | 4 | 3 | 6 |
Temp °C | 26 | 26 | 25 | 26 | 26 | 25 | 26 | 26 | 25 | 26 | 26 | 25 | 26 | 27 | 26 | 25 | 25 | 27 | 27 | 27 | 27 |
Feels °C | 23 | 23 | 22 | 23 | 23 | 21 | 22 | 22 | 22 | 24 | 24 | 24 | 25 | 26 | 26 | 25 | 25 | 24 | 23 | 25 | 28 |
Swell 1 Height (m) Direction Period (s) | S 16 | S 16 | S 15 | S 15 | SSE 12 | SSE 12 | S 12 | S 12 | S 13 | S 12 | S 12 | ENE 13 | SSW 12 | E 12 | ENE 12 | ENE 13 | ENE 13 | SW 14 | SW 15 | SSW 13 | SSW 10 |
422 | 318 | 275 | 209 | 288 | 308 | 513 | 403 | 620 | 628 | 636 | 1467 | 876 | 1062 | 1180 | 1451 | 1581 | 2090 | 8588 | 7274 | 1225 | |
Swell 2 Height (m) Direction Period (s) | SSE 10 | S 11 | E 13 | E 13 | S 14 | E 14 | E 14 | E 14 | E 13 | SSW 17 | SSW 18 | SSW 12 | SSW 20 | SSW 12 | SSW 12 | SW 12 | SW 14 | ENE 12 | ENE 11 | ENE 11 | ENE 9 |
20 | 40 | 123 | 162 | 101 | 334 | 432 | 569 | 507 | 112 | 121 | 793 | 76 | 787 | 710 | 700 | 1288 | 1407 | 991 | 521 | 320 | |
Swell 3 Height (m) Direction Period (s) | SW 14 | E 14 | SSE 15 | SSE 12 | SW 13 | S 14 | SW 12 | SW 13 | N 11 | NNE 10 | NNE 10 | NNE 9 | SSW 16 | SSW 18 | SSW 18 | SSW 17 | SSW 17 | SSW 15 | E 14 | SSW 15 | WSW 10 |
30 | 66 | 93 | 94 | 7 | 100 | 6 | 27 | 10 | 20 | 19 | 15 | 425 | 193 | 344 | 498 | 510 | 402 | 146 | 370 | 356 | |
Wind waves Height (m) Direction Period (s) | ENE 8 | ENE 8 | ENE 8 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 14 | ENE 13 | — | ENE 12 | NNE 6 | — | — | ENE 13 | ENE 12 | — | — | — |
487 | 502 | 627 | 440 | 588 | 498 | 468 | 456 | 512 | 1858 | 1467 | — | 1336 | 34 | — | — | 1886 | 1807 | — | — | — | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 39 | 39 | 47 | 127 | 129 | 39 | 39 | 127 | 33 | 31 | 127 | 3 | 2 | 30 | 0 | 1 | 1 | 124 | 126 | 116 | 45 |
Best forecast wave conditions in Oahu | |||||||||||||||||||||
Best forecast wave conditions in United States | |||||||||||||||||||||
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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.










