Surf Forecasts:
Rockpiles surf forecast from 13 Jul 2026:
- Best quality surf: Wednesday 15 Jul, 2AM (local time) - 2ft (0.6m), 17s period, SSW 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★+): Wednesday 15 Jul, 2AM (local time) - 2ft (0.6m), 17s period with SSW 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 2AM. The primary swell is predicted to be 0.6m and 17s period with a secondary swell of 0.6m and 13s. 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+) | 2AM (Wed 15th Jul) | 2ft (0.6m) 17s |
| Best Surf | 2AM (Wed 15th Jul) | 2ft (0.6m) 17s |
| Most Powerful | 5AM (Mon 13th Jul) | 7ft (2.1m) 8s |
Table - best surf conditions forecast for Rockpiles over the next 16 days.
Alright, let’s look at what’s cookin’ at Rockpiles. This is a reef break, exposed, and it likes swell from the SSE. The first week is a bit of a grind, so don’t rush out.
Monday the 13th, we’ve got about 6ft of short-period ENE windswell. The wind is a fresh cross-offshore, so the surface is clean, but the wave quality is just marginal. The combined energy is moderate (672). It’s not really a goer. That trend continues – small, clean waves but no real juice. Tuesday drops to 2ft of a long-period, 14-second SW groundswell, but the energy is weak (337) and the wind is still cross-off. Not enough push.
From Wednesday the 15th through Sunday the 21st, it’s a dry spell. Swell stays under 3ft, periods vary, and the wind is a steady cross-off. The surface is often clean, but the wave quality is poor or marginal. Energy is weak to moderate. There’s a little bump on Friday the 17th with 5ft of ENE windswell, but it’s got a short period of 7 seconds and the wind is 30 km/h – not worth it.
The first real standout is in the second week. Starting Thursday the 23rd, the swell builds. By Friday the 24th, we’re seeing 6ft to 6ft of ENE windswell, period still short at 7 seconds, but the energy is strong (707-723). The wind is a moderate cross-off, so the waves are clean. It’s still marginal, but this is the most size we’ve had. Saturday the 25th and Sunday the 26th keep that energy – 6ft to 6ft, ENE, 8-second period, energy climbing into the 800-900 range. Wind stays cross-off and clean. This is the best stretch. It’s not perfect, but you’ll find consistent, clean, chest-to-head-high waves.
By Monday the 27th, the swell drops to 4ft and the period lengthens to 14 seconds – a groundswell. Energy is moderate (663), and the wind is still fresh cross-off. Smaller but cleaner. Then Tuesday the 28th throws a spike: 6ft of ENE groundswell with a 13-second period, and the energy is very strong (1389). Wind is a fresh cross-off again. Could be a sneaky good session, but it’s a long way out.
Bottom line: the best surfing is from Friday the 24th through Sunday the 26th. Clean, moderate-sized waves, consistent energy, and the wind is working with you. Water temp is about average for this time of year. The swell is short-period windswell, so don’t expect long lulls, but it’ll be fun.
Rusty.
Short Range ForecastLight rain (total 2mm), mostly falling on Tue morning. Warm (max 26°C on Wed afternoon, min 24°C on Sun night). Winds decreasing (fresh winds from the ENE on Sun night, light winds from the ENE by Tue night). | Days 5-7 Weather SummaryLight rain (total 4mm), mostly falling on Wed night. Warm (max 26°C on Thu afternoon, min 24°C on Thu night). Winds increasing (light winds from the E on Wed night, fresh winds from the ENE by Fri morning). | ||||||||||||||||||||
Monday 13 | Tuesday 14 | Wednesday 15 | Thursday 16 | Friday 17 | Saturday 18 | Sun 19 | |||||||||||||||
Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | |
Swell Height Map |  |  |  |  |  |  |  |  | |||||||||||||
Wave Height (m) Direction Period (s) | ENE 8 | ENE 8 | ENE 8 | ENE 7 | SW 14 | SW 14 | SSW 17 | SW 13 | SW 14 | SSW 16 | SSW 16 | SSW 17 | ENE 7 | ENE 7 | SSW 16 | ENE 6 | E 7 | E 7 | E 8 | E 7 | ENE 7 |
Wave Graph  | |||||||||||||||||||||
 kJ | 481 | 358 | 303 | 228 | 191 | 186 | 197 | 162 | 206 | 314 | 175 | 197 | 195 | 166 | 196 | 121 | 152 | 181 | 196 | 246 | 259 |
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 | cross-off | cross-on | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off |
High Tide | 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 | 8:53AM0.38m | 7:45PM0.43m | |||||||
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 | 2:03PM0.22m | |||||||
 |  | | |  | |  |  | |  | | | | | | | | | | | | |
 | — | 5:56 | — | — | 5:56 | — | — | 5:58 | — | — | 5:58 | — | — | 5:58 | — | — | 5:58 | — | — | 5:58 | — |
 | 7:15 | — | 7:15 | — | — | 7:15 | — | — | 7:15 | — | — | 7:15 | — | — | 7:15 | — | — | 7:15 | — | — | 7:15 |
mm | — | — | — | — | 1 | 1 | — | — | — | 4 | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 25 | 25 | 25 | 24 | 25 | 25 | 25 | 25 | 26 | 25 | 25 | 26 | 25 | 25 | 26 | 25 | 26 | 26 | 25 | 25 | 26 |
Feels °C | 22 | 22 | 22 | 22 | 25 | 24 | 24 | 26 | 26 | 24 | 24 | 25 | 25 | 23 | 24 | 24 | 24 | 24 | 24 | 24 | 24 |
Swell 1 Height (m) Direction Period (s) | SW 16 | SSW 15 | SSW 15 | SW 14 | SW 14 | SW 14 | W 15 | ENE 7 | ENE 7 | ENE 6 | W 14 | E 6 | SSW 14 | W 14 | SSW 16 | ENE 6 | E 7 | E 7 | E 8 | S 12 | S 12 |
| kJ | 353 | 287 | 272 | 208 | 191 | 186 | 227 | 111 | 88 | 82 | 203 | 47 | 183 | 144 | 196 | 121 | 152 | 181 | 196 | 72 | 77 |
Swell 2 Height (m) Direction Period (s) | W 12 | SSE 12 | W 18 | W 18 | W 16 | E 8 | SSW 13 | W 15 | W 15 | SSW 16 | NNE 7 | W 14 | W 14 | SSW 10 | W 14 | SSW 10 | SSW 9 | SSW 14 | S 12 | NNE 8 | S 18 |
| kJ | 26 | 27 | 97 | 152 | 190 | 57 | 111 | 221 | 215 | 314 | 31 | 200 | 148 | 31 | 98 | 82 | 65 | 158 | 112 | 22 | 58 |
Swell 3 Height (m) Direction Period (s) | SSE 12 | W 12 | SSE 11 | SW 18 | SSW 19 | W 16 | SSW 17 | SW 13 | SW 14 | W 15 | SSW 16 | SSW 17 | SSW 18 | SSW 16 | SSW 9 | S 15 | S 13 | SSW 9 | NNE 8 | SW 7 | SSE 8 |
| kJ | 28 | 26 | 25 | 82 | 146 | 188 | 197 | 162 | 206 | 212 | 175 | 197 | 60 | 100 | 32 | 110 | 92 | 50 | 23 | 14 | 14 |
Wind waves Height (m) Direction Period (s) | ENE 8 | ENE 8 | ENE 8 | ENE 7 | NE 8 | NE 7 | NE 8 | — | — | SE 6 | ENE 6 | NE 7 | ENE 7 | ENE 7 | ENE 6 | — | — | — | — | E 7 | ENE 7 |
| kJ | 481 | 358 | 303 | 228 | 229 | 152 | 141 | — | — | 8 | 115 | 65 | 195 | 166 | 164 | — | — | — | — | 246 | 259 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 33 | 30 | 31 | 1 | 1 | 3 | 0 | 30 | 30 | 1 | 30 | 41 | 30 | 32 | 38 | 30 | 32 | 38 | 1 | 30 | 129 |
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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