
Surf Forecasts:
Rockpiles surf forecast from 30 Jul 2026:
- Best quality surf: Thursday 30 Jul, 8AM (local time) - 5ft (1.5m), 8s period, ENE swell with cross-offshore winds.
- Most powerful swell: Saturday 1 Aug, 5AM (local time) - 10ft (3.0m), 8s period, E swell with 1,114 kJ wave energy.
- Next surfable swell (1★+): Wednesday 29 Jul, 11PM (local time) - 4.5ft (1.3m), 8s 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 11PM. The primary swell is predicted to be 1.3m and 8s period. 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 3.0m 8s and forecast to arrive on Saturday (Aug 01) 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 0.6m 7s period and expected on Wednesday (Jul 29) at 11PM.
| Wave Type | Time (HST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 11PM (Wed 29th Jul) | 4.5ft (1.3m) 8s |
| Best Surf | 8AM (Thu 30th Jul) | 5ft (1.5m) 8s |
| Most Powerful | 5AM (Sat 1st Aug) | 10ft (3.0m) 8s |
Table - best surf conditions forecast for Rockpiles over the next 16 days.
The Lowdown
Alright, this is Rusty, and I’m looking at the next couple of weeks for Rockpiles. There’s a bit of a rough patch to get through, but there’s a couple of days that look like they’ll be worth the wait.
Right off the bat, we’ve got a real standout on Wednesday afternoon, July 29th. The wind is glassy, coming from the east at just 3 mph, and that’s going to leave the surface looking like a mirror. The swell is a solid 5 ft out of the ENE, with a moderate energy level (645) and a period of 9 seconds that should give you some decent shape. The water temp is sitting right around 80°, which is pretty much what you’d expect for this time of year. This is for the advanced crew only, as it’s a reef setup, and it can get a bit crowded here sometimes. This is the best session on offer.
Then things get messy. From Thursday morning, July 30th, through to the end of the first week of August, the wind really cranks up out of the east-northeast, hitting 22 to 28 mph. We’ll see the swell size jump from 5 ft up to 8 ft, but the period drops to a short 8 seconds, and the wind just isn’t your friend. The energy gets high, hitting 1379 (strong) on Saturday morning, August 1st, but with that onshore/cross-off wind and short period, it’s going to be a messy, blown-out affair. Honestly, this setup looks more interesting for kite surfing than paddle surfing. There’s a long gap here with no good recommendations.
We start to see a change around Tuesday, August 4th. The wind finally backs off to 9 mph, and the swell period stretches out to 11 seconds. The afternoon session on the 4th is the next real highlight. The swell is a clean 5 ft out of the ENE, with a nice long period, and the energy is still moderate (554). The wind is a gentle cross-off breeze, and the report says “expect very good surf conditions.” This is a solid option for a more experienced surfer.
The outlook gets a bit more interesting into the second week. On Monday morning, August 10th, we see a groundswell from the SSW pushing in at 3 ft with a very long period of 16 seconds. The combined energy is moderate (580), and the wind is a gentle cross-off from the east-northeast. The report signals “expect very good surf conditions.” However, a long-period swell like this can break a bit straight at a beach break, but Rockpiles is a reef, which should handle it well. Keep in mind this is a week and a half away, so it’s promising but less certain.
The final small window looks to be Wednesday afternoon, August 12th. The wind goes light and cross-off from the northeast at 6 mph, and the swell is a baby 2 ft from the SSW with a 13-second period. The energy is low (235), but the report says “expect good surf conditions.” It’s a small day, but it’ll be clean.
So, to wrap it up: the standout is Wednesday afternoon, July 29th, for the glassy conditions and solid swell. The backup is Tuesday afternoon, August 4th, for the cleaner, longer-period swell. The last two weeks of the forecast are a waiting game, with a couple of promising but less certain groundswell windows.
Rusty.
Short Range ForecastMostly dry. Warm (max 27°C on Wed afternoon, min 24°C on Fri night). Winds increasing (calm on Wed afternoon, strong winds from the ENE by Sat morning). | Days 5-7 Weather SummaryMostly dry. Warm (max 26°C on Sun morning, min 24°C on Sat night). Winds decreasing (strong winds from the ENE on Sat afternoon, light winds from the ENE by Tue morning). | |||||||||||||||||||
Wed 29 | Thursday 30 | Friday 31 | Saturday 1 | Sunday 2 | Monday 3 | Tuesday 4 | ||||||||||||||
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 9 | ENE 8 | ENE 8 | SSW 18 | E 7 | ENE 8 | ENE 8 | E 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 12 | ENE 11 | ENE 11 | ENE 10 |
Wave Graph | ||||||||||||||||||||
413 | 224 | 250 | 207 | 251 | 375 | 426 | 935 | 939 | 962 | 910 | 864 | 699 | 504 | 353 | 321 | 718 | 553 | 444 | 325 | |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | glassy | cross-off | cross | 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 | 4:29PM0.70m | 4:28AM0.28m | 4:58PM0.68m | 5:11AM0.31m | 5:26PM0.64m | 5:57AM0.34m | 5:55PM0.59m | 6:49AM0.38m | 6:24PM0.52m | 7:47AM0.42m | 6:55PM0.44m | 8:56AM0.47m | 7:27PM0.36m | |||||||
Low Tide | 11:34PM0.08m | 9:48AM0.03m | 11:58PM0.07m | 10:29AM0.06m | 00:22AM0.06m | 11:14AM0.11m | 00:48AM0.05m | 12:06PM0.16m | 1:15AM0.04m | 1:14PM0.22m | 1:46AM0.04m | 2:52PM0.27m | 2:23AM0.03m | |||||||
— | — | 6:03 | — | — | 6:03 | — | — | 6:03 | — | — | 6:05 | — | — | 6:05 | — | — | 6:05 | — | — | |
7:10 | — | — | 7:10 | — | — | 7:09 | — | — | 7:09 | — | — | 7:08 | — | — | 7:08 | — | — | 7:07 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 27 | 26 | 27 | 27 | 26 | 26 | 26 | 25 | 25 | 25 | 25 | 26 | 26 | 25 | 26 | 26 | 25 | 26 | 26 | 25 |
Feels °C | 30 | 29 | 29 | 28 | 26 | 23 | 23 | 22 | 20 | 20 | 21 | 22 | 22 | 22 | 24 | 24 | 23 | 27 | 27 | 27 |
Swell 1 Height (m) Direction Period (s) | ENE 9 | ENE 8 | ENE 8 | ENE 8 | S 13 | S 12 | E 16 | E 15 | E 15 | E 14 | E 14 | E 14 | E 14 | E 13 | E 12 | E 12 | ENE 12 | ENE 11 | ENE 11 | ENE 10 |
413 | 224 | 250 | 181 | 166 | 153 | 301 | 205 | 267 | 194 | 194 | 188 | 192 | 125 | 76 | 153 | 718 | 553 | 444 | 325 | |
Swell 2 Height (m) Direction Period (s) | S 14 | S 14 | S 14 | S 13 | SSW 16 | E 15 | SW 15 | SW 15 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 13 | SSW 13 | N 6 | SW 13 | SSW 12 | SSW 12 | SSE 14 | SSE 13 |
195 | 184 | 179 | 171 | 177 | 159 | 239 | 176 | 127 | 123 | 131 | 133 | 67 | 57 | 12 | 41 | 48 | 46 | 66 | 58 | |
Swell 3 Height (m) Direction Period (s) | SSW 20 | SW 19 | SW 18 | SSW 18 | E 16 | SW 16 | S 12 | S 12 | SSW 12 | S 11 | S 11 | N 9 | S 11 | SW 13 | SSW 13 | SSW 12 | SSE 9 | SSE 12 | SSW 12 | SSW 11 |
37 | 58 | 154 | 207 | 127 | 206 | 106 | 72 | 46 | 39 | 22 | 16 | 9 | 42 | 32 | 29 | 8 | 30 | 44 | 47 | |
Wind waves Height (m) Direction Period (s) | — | — | — | — | E 7 | ENE 8 | ENE 8 | E 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | — | — | — | — |
— | — | — | — | 251 | 375 | 426 | 935 | 939 | 962 | 910 | 864 | 699 | 504 | 353 | 321 | — | — | — | — | |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 0 | 0 | 5 | 30 | 30 | 38 | 41 | 127 | 130 | 130 | 41 | 41 | 44 | 33 | 33 | 33 | 1 | 30 | 0 | 0 |
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.










