Rockpiles surfForecast / HAW – Oahu / USA

information circle12 Day Weather and Surf, issued 7 pm Sunday 14 Dec 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
25.8° C
(Which is slightly warmer than usual)


Best Forecast Surf Conditions for Rockpiles this week:

The most powerful waves expected at Rockpiles in the next 12 days are 1.2m 6s and forecast to arrive on Tuesday (Dec 16) at 5PM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.5m 15s period and expected on Monday (Dec 15) at 2PM.

Wave TypeTime (HST) & Date Wave Height & Period
Next good surf (1 star+)--
Best Surf--
Most Powerful 5PM (Tue 16th Dec)4ft (1.2m) 6s

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

Updates in  hr  min  s Forecast update imminent

Short Range Forecast Heavy rain (total 23mm), heaviest during Sun night. Warm (max 25°C on Mon morning, min 23°C on Sun night). Winds increasing (calm on Sun night, fresh winds from the S by Tue afternoon).

Days 3-6 Weather Summary Moderate rain (total 11mm), heaviest on Wed night. Warm (max 25°C on Thu morning, min 23°C on Wed night). Wind will be generally light.

Monday
15
Tuesday
16
Wednesday
17
Thursday
18
Friday
19
Saturday
20
Sun
21
NightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPM
Rating
(10 max)
0
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 (?)
0.5
S
0.3
E
0.3
E
0.5
S
0.9
S
1.2
S
1.1
S
1.2
S
1.1
S
0.5
E
0.5
S
0.5
S
0.5
E
0.5
E
0.5
E
0.6
E
0.6
E
0.5
E
0.3
S
0.3
S
0.3
S
Period(s) (?)488566665855889988161515
Wave
Graph
(?)Metric surfscale
Energy kJ (?)710131166102808962301312353538525135453838
Wind
(km/h)
15
SSW
15
S
15
S
15
S
20
S
30
S
25
SSW
30
SSW
25
SSW
15
SW
15
SSW
10
SW
5
SSW
5
ESE
5
SE
10
NE
15
ENE
15
NE
25
ENE
30
ENE
35
ENE
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
cross-
on
onononononononcross-
on
cross-
on
cross-
on
cross-
on
glassglasscross-
on
cross-
off
cross-
off
cross-
off
cross-
off
cross-
off
cross-
off
High Tide
/ height (m)
1:48AM
0.57
12:35PM
0.25
2:20AM
0.62
1:22PM
0.22
2:53AM
0.66
2:06PM
0.20
3:26AM
0.69
2:47PM
0.19
4:00AM
0.70
3:27PM
0.19
4:34AM
0.71
4:09PM
0.18
5:09AM
0.71
4:54PM
0.18
Low Tide
/ height (m)
8:52AM
0.20
6:39PM
0.01
9:42AM
0.16
7:08PM
0.01
10:23AM
0.13
7:39PM
-0.00
11:00AM
0.12
8:12PM
-0.01
11:35AM
0.10
8:47PM
-0.01
12:11PM
0.09
9:23PM
-0.00
12:47PM
0.09
Monday
15
Tuesday
16
Wednesday
17
Thursday
18
Friday
19
Saturday
20
Sun
21
Sunrise-7:00--7:01--7:01--7:01--7:03--7:03--7:03-
Sunset--5:51--5:52--5:52--5:52--5:52--5:53--5:53
thunderstorm
thunderstorm
cloud
part cloud
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
clear
rain showers
thunderstorm
part cloud
rain showers
thunderstorm
part cloud
part cloud
part cloud
clear
Rain (mm)
52--2163451-21-11----
Temp. °C242525252525252525242525242425242525242525
Feels °C (?)272625262524242423252626262627262625252423
  • 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

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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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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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