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Surf Forecasts:
Rockpiles surfForecast / HAW – Oahu / USA
48hr Weather and Surf, issued 1 am Saturday 21 Mar 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
24.6° C
(Which is normal for this time of year)How big are the waves at Rockpiles today?
The current surf forecast for Rockpiles at 9AM is: 0.6m 18s primary swell from a South-southwest direction and 0.9m 5s secondary swell from a South-southwest direction (forecast issued at 01:00am March 21). An open ocean swell of 1.3m 10s is not directed at the surf break. The wind direction is predicted to be cross-onshore.
| Time (HST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (21 Mar) | 2ft (0.6m) | 18s |
| Afternoon (21 Mar) | 2.5ft (0.7m) | 18s |
| Evening (21 Mar) | 2.5ft (0.7m) | 18s |
Table - waves today at Rockpiles. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Saturday 21 | Sunday 22 | Monday 23 | ||||||||||||||||||||||
| 11 PM | 2 AM | 5 AM | 8 AM | 11 AM | 2 PM | 5 PM | 8 PM | 11 PM | 2 AM | 5 AM | 8 AM | 11 AM | 2 PM | 5 PM | 8 PM | 11 PM | 2 AM | 5 AM | 8 AM | 11 AM | 2 PM | 5 PM | 8 PM | |
Rating (10 max) | ||||||||||||||||||||||||
Swell Height Map |    |    |    |    | ||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||
| Period(s) (?) | 12 | 19 | 19 | 18 | 18 | 18 | 18 | 18 | 18 | 17 | 17 | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 15 | 15 | 14 | 14 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 107 | 246 | 170 | 216 | 211 | 276 | 319 | 316 | 312 | 267 | 255 | 234 | 229 | 226 | 226 | 223 | 223 | 255 | 251 | 212 | 193 | 142 | 140 | 138 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross- on | cross- on | on | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | glass | glass | glass | off | cross- off | cross- off | cross- off | cross- off | cross- off |
High Tide / height (m) | 5:14AM 0.32 | 6:25PM 0.57 | 5:50AM 0.24 | 7:25PM 0.58 | 6:32AM 0.17 | |||||||||||||||||||
Low Tide / height (m) | 12:00AM 0.06 | 11:18AM -0.07 | 1:13AM 0.10 | 11:50AM -0.06 | 2:50AM 0.12 | 12:28PM -0.04 | ||||||||||||||||||
Saturday 21 | Sunday 22 | Monday 23 | ||||||||||||||||||||||
| Sunrise | - | - | - | 6:33 | - | - | - | - | - | - | - | 6:33 | - | - | - | - | - | - | - | 6:31 | - | - | - | - |
| Sunset | - | - | - | - | - | - | 6:42 | - | - | - | - | - | - | - | 6:43 | - | - | - | - | - | - | - | 6:43 | - |
 | | |  | | | | | | | | | | | | | | | |  | | | | | |
Rain (mm) | 1 | 1 | 1 | 4 | 2 | 4 | 4 | 4 | 6 | 4 | 3 | 2 | 2 | 2 | 2 | 1 | 2 | 3 | 1 | - | 1 | - | 1 | 1 |
| Temp. °C | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 23 | 24 | 24 | 24 | 24 | 24 | 23 | 23 | 22 | 22 | 23 | 23 | 23 | 22 |
| Feels °C (?) | 24 | 25 | 24 | 23 | 24 | 25 | 24 | 26 | 25 | 25 | 24 | 25 | 25 | 26 | 26 | 27 | 25 | 25 | 23 | 22 | 22 | 21 | 22 | 20 |
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Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
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.
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