Surf Forecasts:
Rockpiles surf forecast from 15 Jul 2026:
- Best quality surf: Wednesday 15 Jul, 8AM (local time) - 2.5ft (0.7m), 13s period, SW swell with cross-offshore winds.
- Most powerful swell: Sunday 19 Jul, 2AM (local time) - 6ft (1.8m), 8s period, ENE swell with 375 kJ wave energy.
- Next surfable swell (1★+): Wednesday 15 Jul, 8AM (local time) - 2.5ft (0.7m), 13s 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 8AM. The primary swell is predicted to be 0.7m and 13s 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 1.8m 8s and forecast to arrive on Sunday (Jul 19) at 2AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.1m 7s period and expected on Wednesday (Jul 15) at 8AM.
| Wave Type | Time (HST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 8AM (Wed 15th Jul) | 2.5ft (0.7m) 13s |
| Best Surf | 8AM (Wed 15th Jul) | 2.5ft (0.7m) 13s |
| Most Powerful | 2AM (Sun 19th Jul) | 6ft (1.8m) 8s |
Table - best surf conditions forecast for Rockpiles over the next 16 days.
The Lowdown
Alright, let’s break down Rockpiles. This is a reef break, exposed to the swell, and it’s fairly consistent, but honestly, for the next week and a half it’s a real struggle to find a proper session. The water temp is sitting at 79°, which is pretty much bang on average for this time of year, so no surprises there.
The first few days are a write-off. Wednesday morning sees a tiny 2ft swell from the SW with a 13-second period, but the wind is cross and it’s messy – poor surf conditions. The combined energy is weak (162). The afternoon is a little cleaner but still marginal. Thursday through Saturday all look similar: clean lines but with a fresh breeze, all cross-off, and the swell is tiny, mostly 2ft to 2ft. The energy is moderate (228 to 401) but the height just isn’t there. That’s not paddleable, it’s a skip.
Sunday the 19th brings a short-period 5ft swell from the ENE, but it’s only 8 seconds, so it’s lumpy and weak. The combined energy pushes up to 467, but the wind is still cross-off and the quality is poor. That’s not what you want.
We’ve got a gap of no real recommendations until Wednesday the 22nd, and even then it’s only marginal. The only real standout in this whole 16-day window is the period from Saturday the 26th into Monday the 27th. The swell builds to 4ft to 4ft from the E, with a 14 to 16-second period – that’s proper groundswell. The combined energy gets strong (1271 to 1359), and the wind is cross-off with a moderate breeze. That’s the best you’re going to get. It’s still not huge, but it’s the only time the numbers line up for a decent, clean wave. The direction is a touch off the optimum (SSE), but it’s close enough. It’s an advanced spot, and crowds are possible, so keep that in mind.
Other than that, the rest is marginal at best, with short period or strong wind spoiling it. For a spot that’s fairly consistent, this is a quiet run.
Rusty.
Short Range ForecastMostly dry. Warm (max 26°C on Wed afternoon, min 24°C on Wed morning). Winds increasing (light winds from the E on Wed morning, fresh winds from the ENE by Thu afternoon). | Days 4-6 Weather SummaryMostly dry. Warm (max 26°C on Sat morning, min 24°C on Sat night). Mainly fresh winds. | ||||||||||||||||||||
Wednesday 15 | Thursday 16 | Friday 17 | Saturday 18 | Sunday 19 | Monday 20 | Tuesday 21 | |||||||||||||||
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 13 | SW 14 | SSW 16 | SSW 16 | SSW 17 | SW 14 | SW 16 | SSW 16 | SSW 14 | SSW 13 | SSW 14 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | S 14 | S 16 | S 15 | S 14 | S 14 | S 13 |
Wave Graph  | |||||||||||||||||||||
 kJ | 162 | 206 | 314 | 175 | 195 | 211 | 125 | 196 | 149 | 141 | 210 | 375 | 314 | 298 | 167 | 142 | 321 | 271 | 329 | 302 | 273 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | 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 | cross-off | cross-off | cross-off |
High Tide | 5:20PM0.76m | 5:41AM0.26m | 5:59PM0.69m | 6:41AM0.30m | 6:36PM0.61m | 7:44AM0.34m | 7:11PM0.52m | 8:53AM0.38m | 7:45PM0.43m | 10:04AM0.43m | 8:19PM0.34m | 11:13AM0.49m | 8:56PM0.27m | ||||||||
Low Tide | 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 | 2:03PM0.22m | 2:48AM0.03m | 3:52PM0.27m | 3:23AM0.04m | 6:20PM0.26m | 4:02AM0.05m | |||||||
 | |  | | | | | | | | |  |  | | | | | | | |  | |
 | 5:58 | — | — | 5:58 | — | — | 5:58 | — | — | 5:58 | — | — | 5:58 | — | — | 6:00 | — | — | 6:00 | — | — |
 | — | 7:15 | — | — | 7:15 | — | — | 7:15 | — | — | 7:15 | — | — | 7:15 | — | — | 7:15 | — | — | 7:14 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 |
Temp °C | 25 | 26 | 25 | 25 | 26 | 25 | 25 | 26 | 24 | 26 | 26 | 25 | 25 | 25 | 25 | 25 | 26 | 25 | 25 | 26 | 25 |
Feels °C | 26 | 26 | 24 | 25 | 24 | 24 | 24 | 24 | 22 | 25 | 25 | 24 | 23 | 22 | 24 | 24 | 24 | 23 | 24 | 24 | 23 |
Swell 1 Height (m) Direction Period (s) | NE 7 | ENE 7 | SSW 16 | W 14 | W 14 | ENE 6 | W 14 | SSW 16 | SSW 14 | SSW 13 | SSW 14 | S 12 | SSW 12 | S 13 | SSW 12 | S 14 | S 16 | ENE 7 | S 14 | S 14 | ENE 7 |
| kJ | 118 | 64 | 314 | 203 | 203 | 145 | 144 | 196 | 147 | 141 | 210 | 112 | 87 | 85 | 45 | 142 | 321 | 111 | 329 | 302 | 131 |
Swell 2 Height (m) Direction Period (s) | W 15 | W 15 | W 15 | SSW 16 | SSW 13 | SW 14 | SW 16 | W 14 | W 13 | WNW 13 | NNE 7 | W 12 | S 19 | S 18 | S 18 | S 16 | SW 18 | S 15 | E 13 | E 12 | S 13 |
| kJ | 221 | 215 | 212 | 175 | 113 | 211 | 125 | 98 | 90 | 57 | 19 | 28 | 66 | 106 | 97 | 135 | 81 | 271 | 123 | 109 | 273 |
Swell 3 Height (m) Direction Period (s) | SW 13 | SW 14 | NNE 8 | SSW 13 | SSW 17 | W 14 | NNE 7 | SSW 12 | SW 15 | NNE 7 | WNW 13 | S 20 | W 12 | W 12 | NNE 8 | NNE 8 | E 16 | E 14 | SW 17 | E 7 | E 12 |
| kJ | 162 | 206 | 47 | 113 | 195 | 148 | 20 | 55 | 58 | 17 | 56 | 32 | 25 | 25 | 24 | 23 | 46 | 103 | 73 | 17 | 102 |
Wind waves Height (m) Direction Period (s) | — | — | ENE 7 | NE 7 | ENE 6 | — | ENE 6 | ENE 7 | ENE 6 | ENE 6 | E 6 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | E 8 | ENE 8 | NE 7 | ENE 7 | NE 7 | — |
| kJ | — | — | 68 | 109 | 82 | — | 103 | 150 | 149 | 119 | 123 | 375 | 314 | 298 | 167 | 121 | 150 | 79 | 117 | 106 | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 1 | 30 | 30 | 32 | 31 | 30 | 30 | 31 | 2 | 30 | 38 | 30 | 30 | 30 | 1 | 1 | 30 | 1 | 30 | 38 | 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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