Rockpiles surfForecast / HAW – Oahu / USA

information circle16 Day Weather and Surf, issued 1 am Saturday 09 May 2026 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
25.5° C
(Which is slightly warmer than usual)

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 Friday (May 15) at 2PM. The primary swell is predicted to be 0.5m and 16s period. 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 2.2m 7s and forecast to arrive on Wednesday (May 13) at 11PM. 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 Thursday (May 14) at 2PM.

Wave TypeTime (HST) & Date Wave Height & Period
Next good surf (1 star+) 2PM (Fri 15th May)1.5ft (0.5m) 16s
Best Surf 5PM (Fri 15th May)4.5ft (1.3m) 7s
Most Powerful11PM (Wed 13th May)7ft (2.2m) 7s

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


Updates in  hr  min  s Forecast update imminent

Short Range Forecast

Mostly dry. Warm (max 25°C on Sat afternoon, min 23°C on Sat morning). Mainly fresh winds.

Days 4-6 Weather Summary

Mostly dry. Warm (max 24°C on Tue morning, min 23°C on Tue night). Mainly strong winds.

Saturday
9
Sunday
10
Monday
11
Tuesday
12
Wednesday
13
Thursday
14
Friday
15
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
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
2
1
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
0.3
SSW
15
0.4
SSW
15
0.3
SSW
14
0.7
ESE
6
0.3
SSW
13
0.3
SSW
13
0.3
SSW
18
0.4
SSW
18
0.4
SSW
17
1.8
ENE
6
1.6
ENE
6
2
E
7
1.9
ENE
7
2.1
ENE
7
2.1
ENE
7
1.7
ENE
8
1.7
ENE
8
0.4
SW
17
0.5
SW
16
1.3
ENE
7
1
ENE
7
Wave Graph
Metric surfscale
Energy kJ
46
71
41
33
34
33
62
102
97
252
197
371
342
385
462
337
337
70
124
183
114
Wind (km/h)
20
NE
25
NE
25
ENE
30
ENE
25
ENE
25
ENE
30
ENE
35
ENE
30
ENE
35
ENE
35
ENE
35
ENE
35
ENE
35
ENE
35
ENE
40
ENE
35
ENE
25
NE
15
ENE
10
NE
10
NNE
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
off
High Tide
11:25AM0.18m
10:29PM0.46m
12:12PM0.25m
11:17PM0.42m
12:52PM0.34m
00:03AM0.39m
1:30PM0.43m
00:49AM0.34m
2:09PM0.52m
1:34AM0.29m
2:50PM0.61m
2:19AM0.24m
3:34PM0.68m
3:06AM0.19m
Low Tide
3:14PM0.13m
5:57AM-0.01m
4:54PM0.14m
6:20AM-0.03m
6:17PM0.12m
6:44AM-0.06m
7:29PM0.10m
7:10AM-0.09m
8:34PM0.07m
7:40AM-0.12m
9:37PM0.04m
8:12AM-0.13m
10:38PM0.02m
part cloud
part cloud
part cloud
part cloud
clear
part cloud
clear
clear
clear
clear
part cloud
part cloud
clear
clear
part cloud
part cloud
clear
part cloud
part cloud
part cloud
rain showers
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:56
5:54
5:54
5:54
5:54
5:52
5:52
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:59
7:00
7:00
7:00
7:00
7:00
7:01
2
Temp °C
24
25
24
24
25
24
24
24
24
24
24
24
24
24
24
24
24
24
24
25
24
23
24
22
22
22
21
21
20
21
20
20
20
19
19
20
20
20
21
24
25
26
Swell 1
Height (m)
Direction
Period (s)
0.4
NW
11
0.4
NW
11
0.4
NNW
12
0.8
NNE
6
0.5
NNW
10
0.4
NW
12
0.4
NNW
11
0.4
NW
11
0.4
SSW
17
0.5
S
16
0.5
S
16
0.4
NW
10
0.4
S
14
0.4
SSW
14
0.4
SSW
14
0.4
NW
15
0.5
NW
15
0.6
NNW
14
1.3
NE
7
1.3
ENE
7
1.1
N
7
Energy kJ
42
30
54
41
59
50
46
29
97
127
124
23
66
82
81
56
109
134
176
183
124
Swell 2
Height (m)
Direction
Period (s)
0.3
SSW
15
0.4
SSW
15
0.3
SSW
14
0.7
ESE
6
0.3
E
8
0.3
NNW
9
0.3
SSW
18
0.4
SSW
18
0.3
NW
11
0.4
NNW
11
0.4
NNW
10
0.3
S
15
0.4
SW
15
0.2
S
14
0.2
NNW
16
0.4
N
9
0.5
N
9
0.5
E
8
0.6
NNW
13
0.5
NW
12
1
ENE
7
Energy kJ
46
71
41
33
11
17
62
102
18
41
33
39
57
14
26
27
38
29
113
72
114
Swell 3
Height (m)
Direction
Period (s)
0.3
E
8
0.3
E
7
0.2
SSW
12
0.5
NNW
12
0.3
SSW
13
0.3
SSW
13
0.2
SSW
10
0.2
SSE
8
0.3
S
12
0.3
S
16
0.2
S
11
0.3
SW
16
0.2
NNW
9
0.1
NW
9
0.2
S
13
0.4
SW
14
0.4
SW
14
0.4
SW
17
0.5
SW
16
0.5
SW
16
0.4
SSE
11
Energy kJ
10
9
14
77
34
33
10
6
26
47
10
40
8
3
14
52
47
70
124
124
37
Wind waves
Height (m)
Direction
Period (s)
1
NNE
6
1
NNE
6
1.3
NE
6
0.6
NE
6
1
NE
6
1.3
ENE
6
1.4
ENE
6
1.4
ENE
6
1.6
ENE
6
1.8
ENE
6
1.6
ENE
6
2
E
7
1.9
ENE
7
2.1
ENE
7
2.1
ENE
7
1.7
ENE
8
1.7
ENE
8
1.6
NE
7
Energy kJ
77
80
136
26
61
107
122
126
167
252
197
371
342
385
462
337
337
262
Nearest Offshore or Glassy
Rating
(10 max)
1
1
1
2
1
2
1
1
1
2
1
1
1
1
2
2
3
1
1
2
1
Distance (km)
2
30
2
32
2
32
30
127
32
38
39
38
38
41
38
38
39
1
1
0
0
Best forecast wave conditions in Oahu
Rating
(10 max)
2
2
2
2
2
3
2
2
2
2
1
2
2
2
3
3
3
3
3
2
Best forecast wave conditions in United States
Rating
(10 max)
3
2
4
2
2
3
3
2
3
2
3
3
3
2
3
3
3
3
3
3
3
Header Global
Rating
(10 max)
5
4
4
9
5
5
5
6
9
9
9
9
6
5
5
5
6
5
5
6
5
  • 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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