Rockpiles surfForecast / HAW – Oahu / USA

information circle12 Day Weather and Surf, issued 7 pm Saturday 13 Sep 2025 HST
Forecast 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
27.2° C
(Which is normal for this time of year)


Best Forecast Surf Conditions for Rockpiles this week:

The most powerful waves expected at Rockpiles in the next 12 days are 0.9m 15s and forecast to arrive on Sunday (Sep 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 1.5m 6s period and expected on Saturday (Sep 13) at 11PM.

Wave TypeTime (HST) & Date Wave Height & Period
Next good surf (1 star+)--
Best Surf--
Most Powerful 2AM (Sun 21st Sep)3ft (0.9m) 15s

Table - best surf conditions forecast for Rockpiles over the next 12 days.

Updates in  hr  min  s Forecast update imminent

Short Range Forecast Mostly dry. Warm (max 26°C on Sun morning, min 25°C on Sat night). Mainly fresh winds.

Days 3-6 Weather Summary Mostly dry. Warm (max 26°C on Wed morning, min 24°C on Tue night). Mainly strong winds.

Sunday
14
Monday
15
Tuesday
16
Wednesday
17
Thursday
18
Friday
19
Sat
20
NightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPM
Rating
(10 max)
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Swell
Height Map
Wave Height (m) & direction (?)
1.9
E
1.3
E
0.5
SSW
0.4
SSW
0.4
SSW
0.4
SSW
0.5
SSW
0.4
SSW
0.4
SSW
0.4
SW
0.4
SW
1.3
ENE
1.5
E
1.3
ENE
1.5
ENE
1.6
ENE
1.5
ENE
0.4
SSW
0.6
SSW
0.9
SSW
0.9
SSW
Period(s) (?)7614141313131213161666666618171615
Wave
Graph
(?)Metric surfscale
Energy kJ (?)3281351187668689558646661134178139160203164103232366339
Wind
(km/h)
30
ENE
30
ENE
25
NE
25
ENE
25
ENE
25
ENE
25
NE
30
ENE
30
ENE
25
ENE
35
ENE
35
ENE
25
E
35
ENE
35
ENE
30
ENE
35
ENE
30
ENE
25
ENE
25
ENE
30
ENE
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
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
cross-
off
High Tide
/ height (m)
8:27PM
0.20
10:44AM
0.67
11:02PM
0.19
11:53AM
0.69
12:34AM
0.23
12:49PM
0.69
1:27AM
0.28
1:35PM
0.69
2:08AM
0.33
2:13PM
0.67
2:43AM
0.39
2:46PM
0.64
3:16AM
0.44
3:16PM
0.59
Low Tide
/ height (m)
2:06AM
0.09
7:17PM
0.15
3:33AM
0.12
7:52PM
0.12
5:05AM
0.12
8:20PM
0.09
6:20AM
0.12
8:45PM
0.08
7:18AM
0.11
9:06PM
0.08
8:09AM
0.10
9:26PM
0.07
8:54AM
0.11
Sunday
14
Monday
15
Tuesday
16
Wednesday
17
Thursday
18
Friday
19
Sat
20
Sunrise-6:18--6:18--6:18--6:18--6:18--6:18--6:18-
Sunset--6:35--6:34--6:32--6:31--6:30--6:30--6:29
part cloud
part cloud
clear
part cloud
clear
clear
clear
clear
clear
part cloud
clear
clear
part cloud
clear
clear
clear
clear
clear
clear
clear
clear
Rain (mm)
---------------------
Temp. °C252626252626252526252626252626252626262626
Feels °C (?)222424242524232323232423222323242424252525
  • Map Icons:
  • Break
  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
Map placeholder

Eyeball surf reportRecent Eyeball Surf Reports for HAW - Oahu

  1. weather stationWind Update Continuing clean conditions at Rockpiles (calm at Saint Louis Heights wx 4 km from Rockpiles). 1.2m 5s windswell from the ENE with a 0.5m 11s groundswell from the S and a 0.3m 10s swell from the SSE. 3 swells combining to make bigger set waves.

    Rockpiles
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1 h 10 min ago

3 km/h
S
Clean
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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 12 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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