Rockpiles Surf Break

Lat Long: 21.28° N 157.84° W

Rockpiles Surf Forecast and Surf Report

Issued: 7 am 19 Jul 2026 (local time)

Forecast update in  hr  min

Today's Rockpiles sea temperature is
26.6° 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 20 Jul 2026:

  • Most powerful swell: Sunday 26 Jul, 2PM (local time) - 4.5ft (1.4m), 16s period, E swell with 984 kJ wave energy.

Best Forecast Surf Conditions for Rockpiles this week:

The most powerful waves expected at Rockpiles in the next 16 days are 1.4m 16s and forecast to arrive on Sunday (Jul 26) at 2PM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.8m 8s period and expected on Sunday (Jul 26) at 8AM.

Wave TypeTime (HST) & Date Wave Height & Period
Next good surf (1 star+)--
Best Surf--
Most Powerful 2PM (Sun 26th Jul)4.5ft (1.4m) 16s

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


The Lowdown

G’day, I’m Rusty. Let’s talk about the surf outlook for Rockpiles over the next 16 days. We kick off on Sunday the 19th of July, and straight up, it’s not looking great. The swell is coming in from the ENE at 4.6 ft, period a short 8 seconds, and it’s a cross-off wind from the ENE at 22 mph. The wave energy is moderate (423), but the conditions are described as poor. There’s nothing to get excited about here – the water temp is 80°F, which is about average for this time of year, so no surprises there.

Moving into Monday the 20th, it’s still not firing. Morning has rain showers, wind from the ENE at 16 mph, 4.9 ft swell from the ENE with a short 7-second period, and the energy is moderate (609). The surf is marginal, and the tide is questionable. Monday afternoon sees a shift: a tiny 2.6 ft SSW swell with a long 16-second period, but the wind is still cross-off at 19 mph, and the energy is moderate (636). Still not worth paddling out.

Tuesday the 21st is similar: morning has 2.9 ft SSW swell, 14-second period, ENE wind at 16 mph, energy moderate (602). Marginal again. Afternoon is the same story with 2.6 ft, 14-second period, and a fresh breeze. Through Wednesday the 22nd and Thursday the 23rd, the swell stays small, mostly under 3 ft, with periods ranging from 12 to 23 seconds, but the wind is always cross-off and fresh, and the conditions are poor or marginal. The energy builds through Thursday to 960, but it’s not translating into good surf.

Now, Friday the 24th brings a bigger, bumpier swell. Morning sees 8.2 ft from the ENE at a short 7-second period, with ENE wind at 22 mph. That’s over 8 ft – only for experts, and with short period and cross-off wind, it’s messy. The energy is strong (1101). Afternoon is 7.5 ft, still short period, still strong breeze. Saturday the 25th is more of the same: 6.9 ft ENE, 8-second period, cross-off wind, strong energy (1141). Not a standout.

The first real glimmer of hope comes on Sunday the 26th of July. Morning has 4.3 ft from the east with a long 16-second period, clean conditions, and a moderate breeze at 16 mph. The energy is moderate (1367). This is groundswell, and Rockpiles is a reef break, so that long period will shape up nicely. It’s not huge, but it’s clean. For a calm, glassy session, you’d want lighter wind, but this is the best we’ve seen. The east swell direction is close to the optimum SSE, so it’s worth a look. Crowds are possible here – it’s a reef spot that can get busy.

Monday the 27th and Tuesday the 28th keep the trend alive: 5.2 ft to 5.9 ft from the east with periods of 13 to 15 seconds, moderate breeze, clean conditions. The energy is strong (up to 1619 on Sunday afternoon). This is the best run of the outlook – consistent, moderate-sized groundswell, and the reef will handle the long period well. From Wednesday the 29th, the swell drops back to 4.3 ft and 3.6 ft, still east with 11-second periods, but the energy falls to moderate (588). The wind stays cross-off.

Thursday the 30th of July is interesting: morning has a tiny 2.0 ft south swell with a 13-second period, but the wind is light and cross-shore from the east at 3 mph, with slight ripples. The energy is weak (220). Afternoon sees a 2.0 ft SW swell with a very long 18-second period, ENE wind at 6 mph, and the energy is moderate (474). The conditions are described as “good surf conditions” – the first time we’ve seen that. Light wind, glassy, and a long period groundswell on a reef. This is a standout for a small-wave session, but know it’s only 2.0 ft, so it’s for the patient surfer.

The forecast then fades into the last few days of July and into early August. Friday the 31st has 2.6 ft from the SSW and east, moderate energy, but the wind picks up. Saturday the 1st of August is poor again with 2.3 ft from the east and a strong breeze. Sunday the 2nd and Monday the 3rd of August show 3.3 ft to 3.6 ft from the east with 15-second periods, but the wind is still fresh, and the conditions are marginal. The energy is moderate (775-832).

Overall, the best on offer is the period from Sunday the 26th of July through Tuesday the 28th – consistent east groundswell, 4.3 ft to 5.9 ft, periods of 13-16 seconds, clean conditions, and moderate breeze. For a smaller, glassy session, Thursday the 30th of July afternoon is a hidden gem, but it’s tiny. Most of the first

Short Range Forecast

Some drizzle, heaviest during Mon morning. Warm (max 26°C on Sun morning, min 24°C on Sun night). Mainly fresh winds.

Days 4-6 Weather Summary

Some drizzle, heaviest during Thu morning. Warm (max 26°C on Wed afternoon, min 24°C on Wed night). Mainly strong winds.

Sunday
19
Monday
20
Tuesday
21
Wednesday
22
Thursday
23
Friday
24
Saturday
25
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
0
0
0
2
1
2
1
1
1
0
1
1
0
0
2
1
1
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)
1.4
ENE
8
1.5
ENE
8
1.6
ENE
7
1.5
ENE
7
0.8
S
16
0.8
S
15
0.9
S
14
0.8
S
14
1.5
ENE
7
1.2
ENE
7
0.6
SSW
23
0.6
SSW
22
2.1
ENE
7
2.1
ENE
7
0.9
SSW
18
2.5
ENE
7
2.3
ENE
7
2.2
ENE
8
2.1
ENE
8
0.9
SSW
18
0.9
SSW
18
Wave Graph
Metric surfscale
Energy kJ
264
277
261
249
321
267
329
246
219
138
426
363
412
397
464
653
557
540
487
565
547
Wind (km/h)
35
ENE
30
ENE
25
ENE
25
ENE
30
NE
25
ENE
25
ENE
35
ENE
30
ENE
35
ENE
35
ENE
30
ENE
40
ENE
35
ENE
35
ENE
35
ENE
40
ENE
35
ENE
30
ENE
40
ENE
25
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
8:53AM0.38m
7:45PM0.43m
10:04AM0.43m
8:19PM0.34m
11:13AM0.49m
8:56PM0.27m
12:12PM0.54m
10:06PM0.22m
1:02PM0.59m
11:46PM0.19m
1:44PM0.62m
00:59AM0.18m
2:22PM0.66m
1:51AM0.19m
Low Tide
2:03PM0.22m
2:48AM0.03m
3:52PM0.27m
3:23AM0.04m
6:20PM0.26m
4:02AM0.05m
8:25PM0.21m
9:13PM0.17m
5:34AM0.05m
9:41PM0.14m
6:23AM0.04m
10:05PM0.12m
clear
clear
clear
rain showers
clear
part cloud
clear
clear
part cloud
clear
clear
clear
rain showers
clear
clear
clear
clear
clear
clear
part cloud
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:58
6:00
6:00
6:00
6:01
6:01
6:01
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
7:15
7:15
7:14
7:14
7:14
7:13
7:13
 mm
1
1
Temp °C
26
26
25
26
26
25
26
26
25
25
26
25
25
25
25
25
26
25
25
25
25
Feels °C
23
23
23
25
24
24
25
24
23
22
23
22
21
21
22
22
23
21
23
22
22
  • Map Icons:
  • Break
  • 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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