
Surf Forecasts:
Rockpiles surf forecast from 12 Jul 2026:
- Best quality surf: Thursday 16 Jul, 5AM (local time) - 2.5ft (0.7m), 16s period, SW swell with cross-offshore winds.
- Most powerful swell: Monday 13 Jul, 5AM (local time) - 7ft (2.1m), 8s period, ENE swell with 469 kJ wave energy.
- Next surfable swell (1★+): Thursday 16 Jul, 5AM (local time) - 2.5ft (0.7m), 16s 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 Thursday (Jul 16) at 5AM. The primary swell is predicted to be 0.7m and 16s period with a secondary swell of 1.2m 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 2.1m 8s 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 11AM.
| Wave Type | Time (HST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 5AM (Thu 16th Jul) | 2.5ft (0.7m) 16s |
| Best Surf | 5AM (Thu 16th Jul) | 2.5ft (0.7m) 16s |
| Most Powerful | 5AM (Mon 13th Jul) | 7ft (2.1m) 8s |
Table - best surf conditions forecast for Rockpiles over the next 16 days.
Alright folks, Rusty here. Let’s take a good hard look at what Rockpiles has in store for us over the next couple of weeks. I won’t sugarcoat it—this isn’t a classic run, but there are a couple of moments that might just make it worth strapping in for.
We’re starting off with a bit of a dud, to be honest. The first few days are pretty grim. Sunday the 12th and Monday the 13th have a lumpy 6 ft to 6.5 ft of short-period ENE windswell, but the wind is blowing a strong 25 to 31 mph cross-offshore. That’s clean, sure, but it’s messy, chunky, and the combined energy is moderate at best. Tuesday the 14th drops right off to a weak 2.3 ft, and we’re stuck with that on-and-off dribble for days. The swell direction swings to the SW with periods around 14 seconds, which is a nice sign of groundswell, but the size just isn’t there. The combined energy drops well below 300—weak stuff. Wednesday through the following Monday, we’re looking at 2 ft to 2.6 ft of mostly SSW to S swell. There’s a long-period pulse (up to 17 seconds) on Thursday the 16th, but at 2 ft? That’s barely a bump on a log. The combined energy sits in the moderate zone, but it’s not doing much. Constant cross-off winds from the ENE, blowing between 16 and 22 mph. It’s clean, but there’s nothing in the water to get excited about.
Now, here’s where we start to see a little life. Sunday the 19th, we get a pulse of ENE windswell back up to 4.9 ft, period a short 8 seconds. Combined energy climbs to 397. Still not great, but it’s a step up. Monday the 20th sees a drop again to 2.3 ft, but the period extends to 16 seconds and the energy jumps to 533. That’s moderate to strong. The wind is still cross-off at 16 mph from the ENE, so it’s clean. It’s a tease, but you could find a sneaky one if you’re patient.
The best of the lot, the real standout, is building towards the end of the run. From Friday the 25th through Monday the 27th, we’ve got some proper juice. On the 25th, the swell bumps to 3.3 ft from the E, with a period of 15-16 seconds. That’s proper long-period groundswell. Combined energy is strong, hitting 809 on Saturday the 25th morning and peaking at 996 on Sunday the 26th afternoon. That’s almost hitting the four-digit mark! The swell is still a bit short of overhead, but the direction (E) is a good match for Rockpiles’ optimum SSE, so it’ll wrap in nicely. The wind stays cross-off from the ENE at 19 mph, so the surface will be clean. Crowds? Rockpiles can be busy, so expect company if you’re out there. For an advanced reef break like this, that 3.3 ft to 3.9 ft with a 15-second period is a dream. The water is a warm 79°F, which is bang-on average for this time of year—no wetsuit needed.
So, to sum it up: the first week and a half is mostly a write-off. But that final weekend—Saturday the 25th and Sunday the 26th—is where it’s at. That’s your best bet. Monday the 27th still looks solid with 3.9 ft and 14-second period, energy in the 900s. It’s a long-range call, so keep an eye on it, but it’s got promise.
Stay stoked, and don’t bother paddling out until that last week unless you’re desperate for a float.
Short Range ForecastLight rain (total 4mm), mostly falling on Tue morning. Warm (max 25°C on Sun morning, min 24°C on Sun night). Winds decreasing (strong winds from the ENE on Sun morning, light winds from the NE by Mon night). | Days 4-6 Weather SummaryLight rain (total 3mm), mostly falling on Wed afternoon. Warm (max 26°C on Wed morning, min 25°C on Wed morning). Winds decreasing (fresh winds from the ENE on Fri morning, light winds from the ENE by Fri night). | ||||||||||||||||||||
Sunday 12 | Monday 13 | Tuesday 14 | Wednesday 15 | Thursday 16 | Friday 17 | Saturday 18 | |||||||||||||||
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) | SW 16 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 7 | SW 14 | SW 14 | ENE 8 | SW 13 | SSW 14 | SSW 16 | SSW 16 | SSW 17 | SSW 11 | SSW 11 | SSW 16 | ENE 6 | S 13 | E 8 | ENE 8 |
Wave Graph | |||||||||||||||||||||
435 | 400 | 451 | 373 | 322 | 236 | 191 | 186 | 187 | 164 | 178 | 314 | 175 | 197 | 247 | 151 | 196 | 59 | 130 | 186 | 245 | |
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 | cross-off | cross-off | cross | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off |
High Tide | 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 | 10:45PM0.04m | 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 | 2:15AM0.02m | ||||||||
5:56 | — | — | 5:56 | — | — | 5:56 | — | — | 5:58 | — | — | 5:58 | — | — | 5:58 | — | — | 5:58 | — | — | |
— | 7:15 | — | — | 7:15 | — | — | 7:15 | — | — | 7:15 | — | — | 7:15 | — | — | 7:15 | — | — | 7:15 | — | |
mm | — | — | — | — | — | — | 1 | 1 | 2 | — | 1 | 2 | — | — | — | — | — | — | 1 | — | — |
Temp °C | 25 | 25 | 24 | 25 | 25 | 24 | 25 | 25 | 25 | 26 | 26 | 25 | 26 | 26 | 25 | 25 | 26 | 25 | 26 | 26 | 25 |
Feels °C | 23 | 21 | 21 | 22 | 22 | 22 | 24 | 23 | 25 | 27 | 25 | 24 | 25 | 25 | 23 | 23 | 25 | 25 | 26 | 25 | 24 |
Swell 1 Height (m) Direction Period (s) | SW 16 | SW 16 | SW 16 | SSW 15 | SSW 15 | SW 14 | SW 14 | SW 14 | ENE 8 | NE 7 | ENE 7 | SSW 16 | W 14 | W 14 | SSW 11 | SSW 11 | SSW 10 | ENE 6 | S 13 | E 8 | ENE 8 |
376 | 367 | 353 | 287 | 272 | 208 | 191 | 186 | 187 | 136 | 93 | 314 | 203 | 203 | 247 | 151 | 116 | 59 | 130 | 186 | 245 | |
Swell 2 Height (m) Direction Period (s) | W 12 | SSE 12 | W 12 | SSE 12 | W 18 | W 18 | W 16 | W 16 | W 15 | W 15 | W 15 | W 15 | NNE 7 | SSW 13 | W 14 | W 14 | SSW 16 | SSW 9 | E 8 | SSW 14 | S 12 |
27 | 28 | 26 | 27 | 97 | 152 | 190 | 190 | 227 | 221 | 215 | 212 | 31 | 111 | 148 | 101 | 196 | 58 | 34 | 158 | 108 | |
Swell 3 Height (m) Direction Period (s) | S 13 | W 12 | SSE 12 | W 12 | SSE 11 | SW 18 | SSW 19 | SW 19 | SSW 13 | SW 13 | SSW 14 | NNE 8 | SSW 16 | SSW 17 | SSE 8 | SSW 16 | W 14 | NNE 7 | NNE 7 | NNE 7 | NNE 8 |
29 | 26 | 28 | 26 | 25 | 82 | 146 | 94 | 111 | 164 | 178 | 67 | 175 | 197 | 19 | 100 | 98 | 28 | 29 | 18 | 19 | |
Wind waves Height (m) Direction Period (s) | ENE 7 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 7 | NE 8 | NE 8 | — | — | — | ENE 6 | ENE 6 | ENE 6 | ENE 7 | ENE 6 | ENE 6 | — | E 6 | — | — |
435 | 400 | 451 | 373 | 322 | 236 | 229 | 210 | — | — | — | 98 | 88 | 107 | 175 | 113 | 70 | — | 78 | — | — | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 38 | 41 | 38 | 38 | 31 | 1 | 1 | 30 | 30 | 30 | 30 | 12 | 30 | 30 | 31 | 31 | 30 | 0 | 1 | 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.










