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Surf Forecasts:
Rockpiles surfForecast / HAW – Oahu / USA
16 Day Weather and Surf, issued 7 pm Wednesday 13 May 2026 HSTForecast update in hr min s Forecast update imminent
Rockpiles surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Rockpiles sea temperature is
25.5° C
(Which is slightly warmer than usual)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 Friday (May 15) at 8AM. The primary swell is predicted to be 1.6m and 8s period. The wind is predicted to be glassy as the swell arrives.
The most powerful waves expected at Rockpiles in the next 16 days are 2.5m 8s and forecast to arrive on Thursday (May 21) 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 0.6m 15s period and expected on Thursday (May 14) at 5PM.
| Wave Type | Time (HST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 8AM (Fri 15th May) | 5ft (1.6m) 8s |
| Best Surf | 2PM (Sun 17th May) | 5ft (1.5m) 8s |
| Most Powerful | 2AM (Thu 21st May) | 8ft (2.5m) 8s |
Table - best surf conditions forecast for Rockpiles over the next 16 days.
Updates in hr min s Forecast update imminent
Short Range ForecastHeavy rain (total 26mm), heaviest during Fri night. Warm (max 25°C on Thu afternoon, min 20°C on Fri night). Winds decreasing (strong winds from the ENE on Wed night, calm by Fri morning). | Days 5-7 Weather SummarySome drizzle, heaviest during Sat night. Warm (max 26°C on Sun morning, min 24°C on Sat night). Winds increasing (light winds from the E on Sun morning, fresh winds from the ENE by Mon afternoon). | ||||||||||||||||||||
Thursday 14 | Friday 15 | Saturday 16 | Sunday 17 | Monday 18 | Tuesday 19 | Wed 20 | |||||||||||||||
Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | |
Swell Height Map |  |  |  |  |  |  |  |  | |||||||||||||
ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | E 8 | ENE 8 | ENE 8 | ENE 8 | SSW 15 | ENE 6 | ENE 8 | ENE 8 | |
382 | 265 | 225 | 228 | 240 | 246 | 284 | 284 | 284 | 244 | 299 | 293 | 318 | 301 | 302 | 266 | 226 | 246 | 200 | 298 | 331 | |
Wind (km/h) | |||||||||||||||||||||
cross-off | cross-off | cross-off | cross-off | on | off | cross-off | cross-off | cross-off | cross-off | cross | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | |
High Tide | 1:34AM0.29m | 2:50PM0.61m | 2:19AM0.24m | 3:34PM0.68m | 3:06AM0.19m | 4:19PM0.72m | 3:56AM0.15m | 5:08PM0.74m | 4:50AM0.11m | 5:59PM0.73m | 5:55AM0.09m | 6:52PM0.69m | 7:16AM0.09m | 7:47PM0.64m | |||||||
Low Tide | 8:34PM0.07m | 7:40AM-0.12m | 9:37PM0.04m | 8:12AM-0.13m | 10:38PM0.02m | 8:47AM-0.15m | 11:40PM0.00m | 9:26AM-0.14m | 00:43AM-0.00m | 10:08AM-0.12m | 1:48AM-0.01m | 10:55AM-0.08m | 2:50AM-0.02m | 11:49AM-0.02m | |||||||
 |  | |  |  | | | | |  | | |  |  | | | | | | | | |
 | — | 5:52 | — | — | 5:52 | — | — | 5:52 | — | — | 5:52 | — | — | 5:52 | — | — | 5:50 | — | — | 5:50 | — |
 | 7:00 | — | 7:00 | — | — | 7:01 | — | — | 7:01 | — | — | 7:02 | — | — | 7:02 | — | — | 7:04 | — | — | 7:04 |
— | — | — | 1 | 3 | 10 | 11 | — | 1 | 1 | — | — | — | — | — | — | — | — | — | — | — | |
Temp °C | 24 | 24 | 25 | 24 | 24 | 24 | 24 | 25 | 25 | 25 | 26 | 25 | 24 | 25 | 25 | 24 | 24 | 25 | 24 | 24 | 25 |
20 | 21 | 22 | 23 | 26 | 25 | 25 | 26 | 24 | 26 | 28 | 26 | 23 | 24 | 23 | 22 | 22 | 22 | 21 | 21 | 22 | |
Swell 1 Height (m) Direction Period (s) | SSW 14 | NW 15 | NNW 15 | ENE 7 | ENE 8 | SW 16 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | SSW 14 | E 8 | SSW 14 | ENE 8 | SSW 14 | SSW 15 | SSW 15 | SSW 14 | SSW 14 |
 kJ | 81 | 109 | 142 | 228 | 240 | 124 | 284 | 284 | 284 | 244 | 299 | 293 | 183 | 301 | 168 | 266 | 178 | 246 | 172 | 163 | 108 |
Swell 2 Height (m) Direction Period (s) | N 9 | SW 14 | N 8 | NNW 13 | NW 13 | NW 12 | SW 16 | SW 15 | SW 14 | SSW 17 | SSW 15 | SSW 15 | SSE 10 | SSW 14 | SSW 19 | SSW 14 | SSW 18 | SSE 9 | SSE 9 | NNW 10 | NNW 10 |
| kJ | 13 | 53 | 12 | 120 | 78 | 71 | 64 | 104 | 102 | 112 | 181 | 193 | 58 | 180 | 148 | 161 | 207 | 29 | 17 | 20 | 20 |
Swell 3 Height (m) Direction Period (s) | NW 16 | N 8 | SW 14 | SW 17 | SW 16 | SSE 11 | NW 11 | SSE 10 | SSW 16 | SSE 11 | SSE 11 | SSE 11 | SSW 18 | SSW 19 | SSE 7 | SSW 16 | SSE 9 | SSW 18 | NNW 11 | SSW 18 | S 18 |
| kJ | 42 | 12 | 47 | 70 | 124 | 23 | 33 | 21 | 89 | 43 | 47 | 65 | 31 | 251 | 18 | 91 | 35 | 30 | 12 | 63 | 56 |
Wind waves Height (m) Direction Period (s) | ENE 7 | ENE 7 | ENE 7 | — | — | ENE 8 | — | — | — | — | — | — | ENE 8 | — | ENE 8 | — | ENE 8 | ENE 8 | ENE 6 | ENE 8 | ENE 8 |
| kJ | 382 | 265 | 225 | — | — | 246 | — | — | — | — | — | — | 318 | — | 302 | — | 226 | 237 | 200 | 298 | 331 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 30 | 30 | 31 | 1 | 20 | 0 | 1 | 30 | 1 | 0 | 1 | 1 | 30 | 30 | 32 | 30 | 30 | 30 | 30 | 31 | 44 |
Best forecast wave conditions in Oahu | |||||||||||||||||||||
Best forecast wave conditions in United States | |||||||||||||||||||||
Header Global | |||||||||||||||||||||
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FREE! Surf-Forecast.com widget for your website
The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Rockpiles surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.
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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