Surf Forecasts:
Rockpiles surf forecast from 22 Jul 2026:
- Most powerful swell: Tuesday 28 Jul, 11AM (local time) - 6ft (1.8m), 13s period, E swell with 1,138 kJ wave energy.
Best Forecast Surf Conditions for Rockpiles this week:
The most powerful waves expected at Rockpiles in the next 16 days are 1.8m 13s and forecast to arrive on Tuesday (Jul 28) at 11AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.8m 7s period and expected on Sunday (Jul 26) at 5PM.
| Wave Type | Time (HST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 11AM (Tue 28th Jul) | 6ft (1.8m) 13s |
Table - best surf conditions forecast for Rockpiles over the next 16 days.
The Lowdown
Alright lads, Rusty here. Let's talk Rockpiles. We got a slow start comin' up, so don't rush out the door just yet.
The first few days, into the 24th and 25th, it's messy as hell. There's this tiny 0.5m to 0.9m SSW swell with a crazy long period (24 seconds) but it's gettin' wiped out by a short-period (7 secs) ENE windswell that pushes things up to around 7 feet. The combined energy is decent (865-1108), but the surf quality is just poor. Wind is a steady cross-off from the ENE at 18-25 mph, so it's clean but weak. If you're into kite surfing, this is way better than a paddle session.
We start seein' some life from the 26th. A cleaner long-period groundswell from the E shows up with periods of 14-15 seconds, bringin' 4 to 6 feet of swell. The energy is strong now (1012-1371). It's still borderline, but things are lookin' up with a moderate breeze and clean conditions.
The standout window I'm lookin' at is Thursday July 30th. The wind just fades away – a light breeze from the NE at 3-6 mph, practically glassy. We're lookin' at a clean 5 to 5 foot groundswell from the ENE with a period of 9-10 seconds. The combined energy is moderate (635-724), but the "very good surf conditions" call is real. It ain't huge, but it'll be clean, fun, and rippable on the reef. Water temp is around 80°F, pretty normal for this time of year. A few people might be out, but nothin' hectic.
Now for the second week, we got proper swell. The ENE groundswell builds to 8 to 8 feet by the start of August. For the experienced crew, Thursday August 6th afternoon is the call. We got a solid 8 feet of groundswell from the ENE, 12-second period, and the combined energy is very powerful (1850). The wind is a gentle offshore from the ENE at 9 mph, so the waves will be clean and powerful. The earlier part of that week (August 1st to 5th) has similar size but with stronger wind and more chop, so it won't be as clean. That 8-foot range is for advanced surfers only. On the 4th, the period jumps to 15 seconds, which can make it sectiony at beach breaks, but Rockpiles is a reef, so it should be fine.
So, keep dry the first week. The 30th of July is your best bet for clean, fun waves. If you want real size and power, clear your calendar for the 6th of August.
Rusty.
Short Range ForecastSome drizzle, heaviest during Fri morning. Warm (max 25°C on Wed morning, min 24°C on Wed night). Mainly strong winds. | Days 4-6 Weather SummaryLight rain (total 2mm), mostly falling on Sat night. Warm (max 25°C on Sat morning, min 24°C on Sat morning). Mainly fresh winds. | ||||||||||||||||||||
Wednesday 22 | Thursday 23 | Friday 24 | Saturday 25 | Sunday 26 | Monday 27 | Tuesday 28 | |||||||||||||||
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) | SSW 24 | SSW 23 | SSW 22 | ENE 7 | ENE 7 | SSW 18 | ENE 7 | SSW 17 | ENE 7 | ENE 8 | SSW 18 | SSW 18 | E 15 | E 15 | E 15 | E 14 | E 14 | E 13 | E 13 | E 13 | E 13 |
Wave Graph  | |||||||||||||||||||||
 kJ | 317 | 426 | 363 | 412 | 397 | 467 | 404 | 348 | 572 | 430 | 578 | 547 | 520 | 627 | 819 | 902 | 1130 | 1006 | 1138 | 971 | 957 |
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 | 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 | 3:29PM0.70m | 3:10AM0.23m | 3:59PM0.70m | 3:49AM0.25m | |||||||
Low Tide | 8:25PM0.21m | 9:13PM0.17m | 5:34AM0.05m | 9:41PM0.14m | 6:23AM0.04m | 10:05PM0.12m | 7:08AM0.02m | 10:27PM0.11m | 7:51AM0.01m | 10:49PM0.10m | 8:31AM0.01m | 11:11PM0.09m | |||||||||
 | |  | | | |  | | | | |  | | | | | | | | | | |
 | 6:00 | — | — | 6:01 | — | — | 6:01 | — | — | 6:01 | — | — | 6:01 | — | — | 6:01 | — | — | 6:03 | — | — |
 | — | 7:14 | — | — | 7:14 | — | — | 7:13 | — | — | 7:13 | — | — | 7:13 | — | — | 7:12 | — | — | 7:12 | — |
mm | — | — | — | — | — | — | 1 | — | — | — | — | 1 | 1 | — | — | — | — | — | — | — | — |
Temp °C | 25 | 25 | 25 | 25 | 25 | 24 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 24 | 25 | 26 | 25 |
Feels °C | 23 | 22 | 23 | 21 | 21 | 20 | 22 | 21 | 23 | 22 | 21 | 23 | 22 | 22 | 22 | 23 | 22 | 22 | 24 | 25 | 24 |
Swell 1 Height (m) Direction Period (s) | S 13 | E 11 | E 12 | SSW 20 | SSW 20 | SSW 18 | SSW 18 | SSW 17 | SSW 16 | SSW 19 | SSW 18 | SSW 18 | E 15 | E 15 | E 15 | E 14 | E 14 | E 13 | E 13 | E 13 | E 13 |
| kJ | 215 | 123 | 180 | 412 | 395 | 464 | 329 | 340 | 232 | 391 | 578 | 547 | 520 | 627 | 819 | 902 | 1130 | 1006 | 1138 | 971 | 957 |
Swell 2 Height (m) Direction Period (s) | E 12 | SSW 23 | S 13 | S 12 | S 11 | S 11 | S 12 | S 12 | S 20 | SSW 16 | S 11 | E 16 | SSW 16 | SSW 16 | SSW 16 | SSW 15 | SSW 15 | S 14 | SSW 14 | S 14 | NNE 9 |
| kJ | 138 | 426 | 157 | 97 | 125 | 55 | 105 | 102 | 299 | 223 | 39 | 176 | 469 | 366 | 333 | 288 | 222 | 200 | 143 | 179 | 99 |
Swell 3 Height (m) Direction Period (s) | SSW 24 | S 13 | SSW 22 | SSW 16 | SW 16 | S 13 | SSW 15 | S 21 | S 12 | S 11 | E 13 | E 12 | S 10 | S 10 | SE 11 | SE 10 | SSE 10 | S 18 | SSE 10 | SE 10 | S 14 |
| kJ | 317 | 125 | 363 | 100 | 127 | 85 | 93 | 231 | 69 | 64 | 54 | 47 | 8 | 19 | 5 | 4 | 19 | 6 | 9 | 4 | 184 |
Wind waves Height (m) Direction Period (s) | ENE 7 | ENE 7 | ENE 6 | ENE 7 | ENE 7 | E 7 | ENE 7 | ENE 7 | ENE 7 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | NE 7 | ENE 7 | NE 7 | NE 7 | NE 7 | NNE 7 | NNE 9 | — |
| kJ | 195 | 171 | 156 | 349 | 397 | 467 | 404 | 348 | 572 | 430 | 365 | 392 | 347 | 349 | 334 | 223 | 174 | 100 | 61 | 121 | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 38 | 32 | 30 | 41 | 41 | 31 | 38 | 44 | 31 | 38 | 127 | 1 | 33 | 41 | 30 | 30 | 38 | 1 | 1 | 2 | 1 |
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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