
Surf Forecasts:
Rockpiles surf forecast from 8 Aug 2026:
- Most powerful swell: Friday 14 Aug, 8PM (local time) - 8ft (2.5m), 8s period, ENE swell with 789 kJ wave energy.
Best Forecast Surf Conditions for Rockpiles this week:
The most powerful waves expected at Rockpiles in the next 16 days are 2.5m 8s and forecast to arrive on Friday (Aug 14) at 8PM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.3m 5s period and expected on Friday (Aug 07) at 11PM.
| Wave Type | Time (HST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 8PM (Fri 14th Aug) | 8ft (2.5m) 8s |
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, I gotta be straight with you – the next week and a half is a bit of a write-off. The wind is locking in from the ENE, blowing cross-off, but it's a fresh breeze, 19 to 25 mph, and it's just wrecking any chance of decent waves. The swell is all over the shop, too short or too weak, and the scores are minimal. You're looking at a long, dry spell from Friday 7th August right through to about Wednesday 19th August. There's a few sessions that flirt with "marginal" but frankly, I wouldn't bother.
The water temp is sitting at 81°, bang on average for the time of year, so at least the wait won't be cold.
Now, let's talk about the one thing that might get the heart rate up. The standout window is Monday 17th and Tuesday 18th of August. We've got a solid pulse of ENE swell building, pushing 12 ft on Monday with a combined energy of 2252 – that's some serious grunt. But here's the kicker: that's a short-period swell, around 9 seconds, and it's big. For Rockpiles, a reef break, that's an expert-only game. The wind is still a strong cross-off at 22 mph, dropping to 16 mph on Tuesday. That's not ideal, but it's clean. The swell drops to 6 ft on Tuesday with moderate energy (897), and that's probably your best chance for a proper session. It's still a short-period swell, so it'll be dumpy, but for the advanced crew, there'll be some grunty barrels to be had.
By Wednesday 19th, the swell drops right out, and the wind swings more cross-shore, making it a mess. A tiny bit of S swell pops up, but it's too small to get excited about. The last week of the forecast is a wasteland of weak, small swell and wind.
So, to sum it up: if you're not an expert, hang the board up for the next ten days. The only real, albeit compromised, window is around Monday 17th and Tuesday 18th for the big-wave hunters. Don't expect anything before that.
Rusty.
Short Range ForecastMostly dry. Warm (max 27°C on Fri afternoon, min 25°C on Fri night). Mainly fresh winds. | Days 5-7 Weather SummaryMostly dry. Warm (max 27°C on Mon afternoon, min 25°C on Mon night). Mainly fresh winds. | |||||||||||||||||||
Fri 7 | Saturday 8 | Sunday 9 | Monday 10 | Tuesday 11 | Wednesday 12 | Thursday 13 | ||||||||||||||
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 20 | SSW 19 | SW 18 | ENE 6 | SW 18 | ENE 7 | ENE 8 | ENE 7 | ENE 8 | ENE 8 | E 7 | ENE 7 | SSW 14 | S 20 | S 18 | S 18 | S 16 | S 16 | S 15 | S 15 |
Wave Graph | ||||||||||||||||||||
99 | 148 | 162 | 200 | 150 | 210 | 256 | 381 | 240 | 240 | 269 | 208 | 269 | 276 | 509 | 498 | 762 | 734 | 559 | 524 | |
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 |
High Tide | 11:32PM0.19m | 1:22PM0.73m | 00:59AM0.19m | 2:10PM0.78m | 2:02AM0.22m | 2:54PM0.80m | 2:55AM0.26m | 3:35PM0.79m | 3:43AM0.31m | 4:13PM0.75m | 4:30AM0.36m | 4:48PM0.69m | ||||||||
Low Tide | 8:34PM0.16m | 5:14AM0.01m | 9:09PM0.12m | 6:20AM-0.01m | 9:40PM0.08m | 7:20AM-0.02m | 10:10PM0.06m | 8:15AM-0.02m | 10:40PM0.05m | 9:08AM-0.00m | 11:08PM0.04m | 9:58AM0.03m | 11:36PM0.04m | |||||||
— | — | 6:07 | — | — | 6:07 | — | — | 6:07 | — | — | 6:07 | — | — | 6:07 | — | — | 6:09 | — | — | |
7:06 | — | — | 7:06 | — | — | 7:05 | — | — | 7:05 | — | — | 7:04 | — | — | 7:02 | — | — | 7:02 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 27 | 25 | 26 | 26 | 25 | 26 | 26 | 25 | 26 | 27 | 26 | 27 | 26 | 25 | 26 | 26 | 25 | 27 | 27 | 26 |
Feels °C | 26 | 24 | 23 | 24 | 23 | 25 | 24 | 24 | 24 | 26 | 26 | 25 | 23 | 23 | 23 | 23 | 23 | 24 | 24 | 23 |
Swell 1 Height (m) Direction Period (s) | SSW 14 | SSW 14 | SSW 14 | SSW 13 | E 7 | SSW 17 | SSW 12 | SSW 16 | SSW 15 | SSW 15 | SSW 15 | SSW 14 | SSW 14 | SSW 14 | S 18 | S 18 | S 16 | S 16 | S 15 | S 15 |
73 | 107 | 113 | 101 | 92 | 159 | 86 | 223 | 184 | 176 | 186 | 165 | 269 | 243 | 509 | 498 | 762 | 734 | 559 | 524 | |
Swell 2 Height (m) Direction Period (s) | SW 20 | SSW 19 | SW 18 | SW 18 | SSW 13 | SSW 13 | SSW 16 | SSW 12 | SSW 12 | SSW 11 | SSW 11 | SSW 11 | SSE 9 | S 20 | SSW 13 | SSW 13 | W 12 | W 12 | W 12 | W 11 |
99 | 148 | 162 | 154 | 99 | 96 | 102 | 56 | 56 | 42 | 23 | 40 | 16 | 276 | 218 | 215 | 11 | 11 | 11 | 10 | |
Swell 3 Height (m) Direction Period (s) | S 11 | NE 11 | NE 10 | SSE 10 | SW 18 | SSE 10 | SSW 18 | SSE 10 | SSE 10 | SSE 10 | SSE 9 | SSE 9 | S 21 | W 10 | W 13 | W 12 | S 20 | SSE 10 | SE 10 | SW 18 |
20 | 30 | 17 | 19 | 150 | 19 | 102 | 19 | 19 | 36 | 17 | 16 | 79 | 8 | 30 | 25 | 8 | 9 | 4 | 13 | |
Wind waves Height (m) Direction Period (s) | ENE 5 | ENE 6 | ENE 6 | ENE 6 | NE 7 | ENE 7 | ENE 8 | ENE 7 | ENE 8 | ENE 8 | E 7 | ENE 7 | ENE 7 | E 7 | ENE 6 | ENE 6 | ENE 7 | ENE 7 | ENE 7 | ENE 7 |
44 | 90 | 160 | 200 | 118 | 210 | 256 | 381 | 240 | 240 | 269 | 208 | 181 | 262 | 194 | 212 | 308 | 350 | 293 | 487 | |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 30 | 1 | 30 | 38 | 30 | 30 | 30 | 30 | 30 | 32 | 30 | 30 | 129 | 30 | 30 | 41 | 31 | 44 | 46 | 39 |
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.











