Surf Forecasts:
Rockpiles surf forecast from 12 Jul 2026:
- Best quality surf: Wednesday 15 Jul, 5AM (local time) - 2.5ft (0.7m), 17s period, SW swell with cross-offshore winds.
- Most powerful swell: Monday 13 Jul, 5AM (local time) - 7ft (2.2m), 7s period, ENE swell with 498 kJ wave energy.
- Next surfable swell (1★+): Wednesday 15 Jul, 5AM (local time) - 2.5ft (0.7m), 17s period with SW 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 15) at 5AM. The primary swell is predicted to be 0.7m and 17s period with a secondary swell of 1.3m and 7s. 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 2.2m 7s and forecast to arrive on Monday (Jul 13) 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 1.4m 8s period and expected on Tuesday (Jul 14) at 2PM.
| Wave Type | Time (HST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 5AM (Wed 15th Jul) | 2.5ft (0.7m) 17s |
| Best Surf | 5AM (Wed 15th Jul) | 2.5ft (0.7m) 17s |
| Most Powerful | 5AM (Mon 13th Jul) | 7ft (2.2m) 7s |
Table - best surf conditions forecast for Rockpiles over the next 16 days.
Alright folks, Rusty here. Let’s get into it.
Alright, so the outlook for Rockpiles is a bit of a mixed bag. It’s a reef break that’s fairly consistent and exposed, and it really wants that swell from the SSE – that’s the sweet spot. But we’re not seeing that for a while. The water temp is about average for this time of year, so no surprises there.
The first few days? Honestly, a bit of a write-off for a proper surf. Sunday the 12th and Monday the 13th have some swell around 6 ft to 6 ft, pushing from the ENE, but the wind is a strong cross-offshore breeze. The wave energy is moderate (around 796-814) but the period is short, around 7 to 8 seconds, so it’s going to be bumpy, wind-affected, and messy. Not the kind of clean lines you want at a reef. It’s more of a kite-surfing kind of setup, to be honest.
That ENE wind sticks around all week, and the swell drops. From Tuesday the 14th we get a tiny bit of SW groundswell, but it’s tiny – 2 ft with a long 14-second period – and the energy is pretty weak. The cross-off wind keeps the surface clean, but there’s just not enough push. That continues through the end of the week. The wave energy stays low, between 103 and 440, nothing to get excited about.
Then we get a little bump on Sunday the 19th. A bit of ENE swell returns, 5 ft, but again it’s short period (8 seconds) and the wind is strong. It’s marginal at best. The energy is moderate (407-579) but the quality just isn’t there.
The real standout window looks like it might be towards the end of the month. From Monday the 21st, we start seeing some longer period SSW groundswell. The swell heights are small, around 2 ft to 3 ft, but the period gets up to 20-24 seconds, which is very long. The wave energy is moderate to strong (562-930). The wind is still cross-offshore, which keeps the surface clean. This is the kind of long-period groundswell that can really line up perfectly at a reef like Rockpiles, especially since it’s coming from the right direction. It’s not going to be huge, but it’ll be clean, well-shaped, and have a lot of push for its size. The best of the bunch looks like Wednesday the 22nd and Thursday the 23rd, with the energy peaking around 800-814. Keep in mind, with a period that long, the sets will be spread out, making the paddle out a bit easier. This is a promising one for the second week, but it’s a long way out, so don’t hold your breath.
Rusty.
Short Range ForecastMostly dry. Warm (max 26°C on Tue afternoon, min 24°C on Sat night). Mainly strong winds. | Days 5-7 Weather SummaryLight rain (total 5mm), mostly falling on Tue night. Warm (max 26°C on Wed afternoon, min 24°C on Tue night). Winds increasing (light winds from the ENE on Wed night, fresh winds from the ENE by Fri afternoon). | ||||||||||||||||||||
Sunday 12 | Monday 13 | Tuesday 14 | Wednesday 15 | Thursday 16 | Friday 17 | Sat 18 | |||||||||||||||
Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | |
Swell Height Map |  |  |  |  |  |  |  |  | |||||||||||||
Wave Height (m) Direction Period (s) | ENE 7 | SW 16 | ENE 8 | SW 16 | ENE 8 | ENE 8 | ENE 7 | ENE 8 | SW 14 | E 8 | SW 13 | SW 14 | SSW 16 | SSW 16 | SSW 17 | SW 14 | SW 12 | SSW 16 | ENE 6 | ENE 6 | ENE 7 |
Wave Graph  | |||||||||||||||||||||
 kJ | 379 | 397 | 419 | 393 | 383 | 322 | 231 | 257 | 186 | 71 | 164 | 206 | 314 | 175 | 195 | 211 | 67 | 196 | 125 | 92 | 160 |
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-off | cross-off | cross-off | cross-off |
High Tide | 1:50AM0.16m | 3:11PM0.80m | 2:52AM0.17m | 3:56PM0.82m | 3:49AM0.19m | 4:39PM0.80m | 4:45AM0.22m | 5:20PM0.76m | 5:41AM0.26m | 5:59PM0.69m | 6:41AM0.30m | 6:36PM0.61m | 7:44AM0.34m | 7:11PM0.52m | |||||||
Low Tide | 10:04PM0.07m | 7:21AM-0.09m | 10:45PM0.04m | 8:13AM-0.09m | 11:23PM0.02m | 9:06AM-0.08m | 11:59PM0.01m | 9:57AM-0.04m | 00:34AM0.01m | 10:49AM0.01m | 1:08AM0.01m | 11:44AM0.08m | 1:42AM0.01m | 12:46PM0.16m | |||||||
 |  | | |  | | | | |  |  | | | | |  | | | | | | |
 | — | 5:56 | — | — | 5:56 | — | — | 5:56 | — | — | 5:58 | — | — | 5:58 | — | — | 5:58 | — | — | 5:58 | — |
 | 7:16 | — | 7:15 | — | — | 7:15 | — | — | 7:15 | — | — | 7:15 | — | — | 7:15 | — | — | 7:15 | — | — | 7:15 |
mm | — | — | — | — | — | — | — | — | — | 3 | 1 | — | 1 | — | — | — | — | — | — | — | — |
Temp °C | 25 | 25 | 25 | 24 | 25 | 25 | 24 | 25 | 26 | 25 | 25 | 26 | 25 | 26 | 26 | 25 | 25 | 25 | 25 | 25 | 26 |
Feels °C | 23 | 23 | 21 | 20 | 22 | 22 | 22 | 23 | 24 | 24 | 25 | 26 | 25 | 25 | 25 | 23 | 23 | 22 | 23 | 24 | 24 |
Swell 1 Height (m) Direction Period (s) | SW 17 | SW 16 | SW 16 | SW 16 | SSW 15 | SSW 15 | SW 14 | SW 14 | SW 14 | NE 7 | ENE 7 | ENE 7 | NE 7 | NE 7 | ENE 6 | SW 14 | E 6 | SSW 16 | SW 10 | S 13 | SSW 14 |
| kJ | 309 | 376 | 367 | 353 | 287 | 272 | 208 | 191 | 186 | 140 | 114 | 77 | 112 | 106 | 68 | 211 | 36 | 196 | 82 | 92 | 160 |
Swell 2 Height (m) Direction Period (s) | W 13 | S 11 | SSE 12 | W 12 | SSE 12 | W 18 | W 18 | W 16 | W 16 | E 8 | W 15 | W 15 | SSW 16 | W 14 | W 14 | W 14 | W 14 | SSW 12 | S 14 | SW 9 | SW 9 |
| kJ | 54 | 23 | 28 | 26 | 27 | 97 | 152 | 190 | 190 | 71 | 221 | 215 | 314 | 203 | 200 | 148 | 144 | 90 | 101 | 41 | 19 |
Swell 3 Height (m) Direction Period (s) | S 11 | W 12 | W 12 | SSE 12 | W 12 | SSE 11 | SW 18 | SSW 19 | SW 19 | W 15 | SW 13 | SW 14 | W 15 | SSW 16 | SSW 17 | NNE 7 | SW 12 | W 14 | W 13 | NNE 7 | WNW 13 |
| kJ | 22 | 27 | 26 | 28 | 26 | 25 | 82 | 146 | 94 | 227 | 164 | 206 | 212 | 175 | 195 | 29 | 67 | 98 | 90 | 17 | 57 |
Wind waves Height (m) Direction Period (s) | ENE 7 | ENE 7 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 7 | ENE 8 | NE 8 | — | — | — | — | ENE 6 | — | ENE 6 | NE 7 | ENE 7 | ENE 6 | ENE 6 | ENE 7 |
| kJ | 379 | 397 | 419 | 393 | 383 | 322 | 231 | 257 | 210 | — | — | — | — | 62 | — | 103 | 102 | 154 | 125 | 87 | 138 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 39 | 38 | 46 | 31 | 30 | 33 | 1 | 1 | 30 | 30 | 30 | 1 | 0 | 30 | 38 | 31 | 38 | 38 | 30 | 30 | 30 |
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.
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