Rockpiles Surf Break

Lat Long: 21.28° N 157.84° W

Rockpiles Surf Forecast and Surf Report

Issued: 1 am 30 Jul 2026 (local time)

Forecast update in  hr  min

Today's Rockpiles sea temperature is
26.7° C
0.3° 

Rockpiles surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.


Rockpiles surf forecast from 30 Jul 2026:

  • Best quality surf: Thursday 30 Jul, 8AM (local time) - 4.5ft (1.4m), 8s period, ENE swell with cross-offshore winds.
  • Most powerful swell: Saturday 1 Aug, 5AM (local time) - 10ft (3.0m), 8s period, ENE swell with 1,055 kJ wave energy.
  • Next surfable swell (1★+): Thursday 30 Jul, 8AM (local time) - 4.5ft (1.4m), 8s period with ENE 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 Thursday (Jul 30) at 8AM. The primary swell is predicted to be 1.4m and 8s period with a secondary swell of 0.7m and 14s. 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 3.0m 8s and forecast to arrive on Saturday (Aug 01) 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 0.7m 5s period and expected on Thursday (Aug 06) at 8AM.

Wave TypeTime (HST) & Date Wave Height & Period
Next good surf (1 star+) 8AM (Thu 30th Jul)4.5ft (1.4m) 8s
Best Surf 8AM (Thu 30th Jul)4.5ft (1.4m) 8s
Most Powerful 5AM (Sat 1st Aug)10ft (3.0m) 8s

Table - best surf conditions forecast for Rockpiles over the next 16 days.


The Lowdown

Alright, Rusty here. Let’s take a look at what’s coming up for Rockpiles.

We’re looking at a pretty grim run for the next couple of weeks. The forecast starts with a bit of swell on Thursday morning, July 30th, but it’s a messy picture. There’s a 4.9 ft swell from the ENE with a short period of 8 seconds, and the wind is a cross-off from the ENE at 15 mph. The water is a warm 80.1°, which is about average for this time of year. The combined energy of all swells is weak at 583, so it’s not packing much punch. Honestly, it’s marginal at best, and the afternoon drops to a tiny 2.0 ft from the SSW. This is not a day to get excited about.

From Friday, July 31st, through to Monday, August 3rd, the swell builds but so does the wind. We’re talking 25–28 mph ENE winds, which is a strong breeze, and the swell comes in at 4.9 ft to 8.2 ft from the ENE with a short 8-second period. The combined energy climbs into the four-digit range, up to 1354, but the conditions are poor. The wind is too strong, and the swell is short and messy. This stretch is between poor and marginal, and I wouldn’t bother. For a reef break like Rockpiles, that chop is just going to make it ugly.

There’s a slight improvement on Tuesday, August 4th, and Wednesday, August 5th. The wind eases to 9 mph, and the swell drops to 3.9 ft–4.6 ft from the ENE. The period stretches to 10–12 seconds, which is a bit longer and more organized. The combined energy is moderate, around 658. Wednesday morning actually has the tag “expect good surf conditions,” but don’t get your hopes up—it’s still a 2 out of 10. The wind is cross-off, so it’ll be clean, but the swell is small. It’s the best of a bad lot, but not a standout.

Then we hit a big gap. From Thursday, August 6th, through to Sunday, August 9th, it’s a mix of poor and marginal, with strong winds and raw, short-period swell. The energy drops to 125–346, so it’s weak. There’s a bit of a long-period S/SSW groundswell on the 9th, but it’s only 1.6 ft–2.6 ft, so it’s not going to do anything.

Monday, August 10th, brings a sudden spike in combined energy to 1124 from a 3.3 ft SSW swell with a very long period of 16 seconds. That’s a groundswell, and it’s got some energy, but it’s small. The wind is a cross-off from the ENE at 15 mph, so it’ll be clean. Still, it’s a long shot, and the forecast is less certain that far out. The real standout? Honestly, there isn’t one. The best surf is on Wednesday, August 5th, with that 3.9 ft ENE swell, 10-second period, and light offshore wind. It’s clean, but it’s small. For the rest, the wind is just too strong, and the swell quality is poor.

Stay patient, keep your eyes on the charts, and don’t chase the wind. This is a rough run for Rockpiles.

Short Range Forecast

Mostly dry. Warm (max 27°C on Thu morning, min 24°C on Fri night). Winds increasing (light winds from the NE on Thu morning, strong winds from the ENE by Sat morning).

Days 4-6 Weather Summary

Mostly dry. Warm (max 26°C on Sun morning, min 24°C on Sun night). Winds decreasing (fresh winds from the ENE on Sun morning, light winds from the ENE by Tue night).

Thursday
30
Friday
31
Saturday
1
Sunday
2
Monday
3
Tuesday
4
Wednesday
5
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
2
1
2
0
1
1
0
1
1
1
0
1
1
1
1
2
2
2
2
1
2
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
1.5
ENE
8
0.6
SSW
18
1.5
E
7
1.7
E
8
1.8
ENE
8
3
E
8
2.5
E
8
2.5
ENE
8
3
ENE
8
2.3
ENE
8
2.2
ENE
8
2
ENE
8
1.7
ENE
8
1.5
ENE
8
1.3
ENE
9
1.5
ENE
12
1.4
ENE
11
1.3
ENE
10
1.2
ENE
10
1.1
ENE
9
1
ENE
8
Wave Graph
Metric surfscale
Energy kJ
250
207
251
329
385
1033
902
939
1009
720
682
554
394
321
237
583
452
345
248
184
147
Wind (km/h)
25
ENE
25
ENE
25
ENE
40
ENE
40
ENE
40
ENE
45
ENE
40
ENE
40
ENE
35
ENE
35
ENE
30
ENE
30
ENE
30
ENE
20
NE
20
ENE
15
NE
10
ENE
15
ENE
20
ENE
15
ENE
Wind State
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
4:58PM0.68m
5:11AM0.31m
5:26PM0.64m
5:57AM0.34m
5:55PM0.59m
6:49AM0.38m
6:24PM0.52m
7:47AM0.42m
6:55PM0.44m
8:56AM0.47m
7:27PM0.36m
10:11AM0.53m
8:07PM0.29m
Low Tide
9:48AM0.03m
11:58PM0.07m
10:29AM0.06m
00:22AM0.06m
11:14AM0.11m
00:48AM0.05m
12:06PM0.16m
1:15AM0.04m
1:14PM0.22m
1:46AM0.04m
2:52PM0.27m
2:23AM0.03m
5:19PM0.27m
3:10AM0.03m
clear
clear
part cloud
clear
part cloud
part cloud
part cloud
clear
clear
clear
clear
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
cloud
part cloud
part cloud
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:03
6:03
6:03
6:05
6:05
6:05
6:05
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
7:10
7:09
7:09
7:08
7:08
7:07
7:07
 mm
Temp °C
27
27
26
26
26
25
25
25
25
26
26
25
25
26
25
26
26
25
26
27
26
Feels °C
27
27
26
23
22
21
20
20
21
23
23
22
24
24
24
27
27
26
28
28
27
  • Map Icons:
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  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
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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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