Aligator Rock Surf Break

Lat Long: 21.63° N 158.08° W

Issued: 7 am 03 Jul 2026 (local time)

Forecast update in  hr  min

Today's Aligator Rock sea temperature is
26.2° C

Normal for this time of year

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


Aligator Rock surf forecast from 3 Jul 2026:

  • Best quality surf: Friday 3 Jul, 5PM (local time) - 1.5ft (0.5m), 13s period, NW swell with offshore winds.
  • Most powerful swell: Saturday 4 Jul, 5PM (local time) - 5ft (1.6m), 8s period, NE swell with 314 kJ wave energy.
  • Next surfable swell (1★+): Friday 3 Jul, 5PM (local time) - 1.5ft (0.5m), 13s period with NW swell.

Best Forecast Surf Conditions for Aligator Rock this week:

The surf forecast for Aligator Rock over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Friday (Jul 03) at 5PM. The primary swell is predicted to be 0.5m and 13s period with a secondary swell of 0.3m and 16s. The wind is predicted to be offshore as the swell arrives.

The most powerful waves expected at Aligator Rock in the next 16 days are 1.6m 8s and forecast to arrive on Saturday (Jul 04) at 5PM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 2.3m 8s period and expected on Tuesday (Jul 07) at 5AM.

Wave TypeTime (HST) & Date Wave Height & Period
Next good surf (1 star+) 5PM (Fri 3rd Jul)1.5ft (0.5m) 13s
Best Surf 5PM (Fri 3rd Jul)1.5ft (0.5m) 13s
Most Powerful 5PM (Sat 4th Jul)5ft (1.6m) 8s

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


Updates in  hr  min  s Forecast update imminent

Hey, Rusty here again. Let’s break it down for those who think in feet and miles per hour. Aligator Rock is mostly a slow go for the first week, but there are a couple of days where it all comes together. The water is about 79°F – right around average for this time of year.

Friday morning the 3rd of July starts off tiny: 1 feet of NW swell with a 14-second period, cross-off wind from the ENE at 12 mph. The combined energy is weak (48), and conditions are poor. The afternoon gets a little better – 2 feet, offshore wind – but still nothing to write home about. Saturday the 4th brings a messy 5-foot NE swell in the afternoon with a short 8-second period and strong cross-off wind, energy at 401 – just junk. Sunday through Monday are clean but tiny, with fresh offshore winds and waves barely reaching 1 feet.

From Tuesday the 7th through the end of the first week, it’s flat – waves under 1 foot, energy in single digits. That’s nearly four days of nothing.

The standout is Tuesday the 14th of July. Morning and afternoon dish up a clean 2-foot west swell with a 16-second period – proper long-period groundswell. The wind is light offshore from the ENE at 9 mph, near glassy. Combined energy hits 379 in the morning and 419 in the afternoon (strong). The swell direction lines up with the optimum (NW), and the reef will handle it beautifully. Expect good surf conditions. Wednesday the 15th keeps the quality going – 2-foot west swell, period 16 seconds, clean offshore breeze, energy in the 276–283 range. Still very solid.

After that, Thursday the 16th and Friday the 17th are surfable but ordinary – smaller 2–2-foot west swells, moderate offshore wind. By Saturday the 18th of July, it’s back to poor surf, tiny waves, and cross-off breeze. Your best bet is the 14th and 15th – clean, lined-up, and worth the paddle.

Catch you in the water,
Rusty

Short Range Forecast

Light rain (total 2mm), mostly falling on Sun morning. Warm (max 26°C on Fri morning, min 24°C on Fri night). Mainly fresh winds.

Days 4-6 Weather Summary

Light rain (total 2mm), mostly falling on Mon night. Warm (max 26°C on Wed afternoon, min 23°C on Mon night). Mainly fresh winds.

Friday
3
Saturday
4
Sunday
5
Monday
6
Tuesday
7
Wednesday
8
Thursday
9
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
1
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
0.4
NW
14
0.5
NW
13
0.6
NW
13
0.6
NW
12
1.6
NE
8
0.4
NW
11
0.4
NW
11
0.4
NW
11
0.3
NW
10
0.2
NNW
10
0.1
NW
10
0.1
NW
9
0.1
NW
9
0.1
NW
9
0.1
SW
14
0.1
W
18
0.1
W
17
0.1
W
17
0.2
W
15
0.2
W
15
0.3
W
14
Wave Graph
Metric surfscale
Energy kJ
48
84
103
90
314
44
42
41
16
10
4
3
3
3
7
7
6
6
18
17
35
Wind (km/h)
20
ENE
25
ENE
20
ENE
25
ENE
25
ENE
25
ENE
30
ENE
30
ENE
30
ENE
30
ENE
30
ENE
25
ENE
30
ENE
30
ENE
25
ENE
30
ENE
30
ENE
25
ENE
25
ENE
25
ENE
25
E
Wind State
cross-off
off
off
cross-off
cross-off
off
off
off
off
off
cross-off
off
cross-off
off
off
off
off
off
off
off
off
High Tide
5:28PM0.50m
6:17AM0.19m
6:01PM0.46m
7:28AM0.23m
6:35PM0.41m
8:42AM0.29m
7:13PM0.35m
9:50AM0.36m
8:00PM0.28m
10:50AM0.44m
9:03PM0.22m
11:43AM0.51m
10:25PM0.18m
Low Tide
8:59AM0.05m
11:51PM0.04m
9:48AM0.10m
00:21AM0.03m
10:54AM0.15m
00:51AM0.02m
12:28PM0.20m
1:24AM0.01m
2:35PM0.22m
2:02AM-0.01m
4:42PM0.19m
2:45AM-0.02m
6:10PM0.14m
3:34AM-0.04m
clear
clear
part cloud
part cloud
part cloud
part cloud
rain showers
rain showers
clear
clear
clear
rain showers
clear
clear
part cloud
clear
clear
clear
clear
clear
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:52
5:54
5:54
5:54
5:54
5:54
5:56
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
7:19
7:19
7:19
7:19
7:19
7:19
7:17
 mm
1
1
2
Temp °C
26
26
25
25
26
24
25
25
24
25
25
24
25
25
24
25
26
24
26
26
24
Feels °C
26
25
25
23
24
23
23
23
22
22
22
22
22
22
22
23
24
22
25
25
23
Swell 1
Height (m)
Direction
Period (s)
0.4
NW
14
0.5
NW
13
0.6
NW
13
0.6
NW
12
0.6
NW
12
0.4
NW
11
0.4
NW
11
0.4
NW
11
0.4
SSW
16
0.3
SSW
16
0.4
SSW
15
0.3
SSW
15
0.3
SSW
14
0.3
SSW
14
0.3
SSW
14
0.3
SSW
14
0.3
SSW
14
0.2
SSW
13
0.2
SSW
13
0.2
W
15
0.3
W
14
Energy kJ
48
84
103
90
87
44
42
41
102
50
89
44
41
40
37
38
36
17
16
17
35
Swell 2
Height (m)
Direction
Period (s)
0.4
SW
13
0.3
SW
16
0.3
SSW
16
0.4
SW
16
0.5
E
9
0.4
SW
15
0.3
ESE
9
0.3
SSW
18
0.3
NW
10
0.2
SSW
13
0.1
NW
10
0.2
SSW
14
0.1
NW
9
0.1
NW
9
0.1
SW
14
0.1
SW
13
0.1
W
17
0.1
W
17
0.2
W
15
0.2
SSW
12
0.2
SSW
12
Energy kJ
45
41
51
64
41
55
17
60
16
17
4
20
3
3
7
7
6
6
18
15
15
Swell 3
Height (m)
Direction
Period (s)
0.2
SSW
17
0.2
SSW
12
0.2
SSW
12
0.2
S
21
0.4
SW
15
0.3
SSW
19
0.4
SW
14
0.4
SW
14
0.1
S
10
0.2
NNW
10
0.1
W
10
0.1
NW
9
0.1
S
8
0.1
S
11
0.1
W
18
0.1
S
13
0.1
S
8
0.1
W
11
Energy kJ
29
14
15
35
60
72
54
52
2
10
2
3
1
2
6
3
1
2
Wind waves
Height (m)
Direction
Period (s)
1.6
ENE
8
1.7
ENE
8
1.7
ENE
8
1.7
ENE
8
1.6
NE
8
1.8
ENE
8
1.7
ENE
8
2.1
ENE
7
2.1
ENE
8
2
ENE
8
2.1
ENE
8
2.2
ENE
8
2
ENE
8
2.1
ENE
8
2.2
ENE
8
1.9
ENE
8
2
ENE
7
2.2
ENE
7
2
ENE
7
1.9
ENE
7
1.7
ENE
7
Energy kJ
302
356
345
336
314
372
337
469
487
447
522
551
471
487
572
411
417
485
435
379
286
Nearest Offshore or Glassy
Rating
(10 max)
2
1
1
2
2
3
3
2
2
1
1
2
1
2
2
2
1
1
1
1
1
Distance (km)
20
0
0
20
22
20
20
22
20
165
166
20
22
22
20
20
20
20
22
22
20
Best forecast wave conditions in Oahu
Rating
(10 max)
2
2
1
3
2
3
3
2
2
2
1
2
2
2
1
1
1
1
1
Best forecast wave conditions in United States
Rating
(10 max)
3
2
3
3
3
4
3
2
3
2
2
4
2
2
4
3
2
4
1
2
3
Header Global
Rating
(10 max)
7
5
6
5
9
7
5
6
8
7
4
5
9
8
9
6
5
5
8
5
8
  • 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 Aligator Rock Surf forecast

The above surf forecast table for Aligator Rock provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Aligator Rock can be found by selecting the local surf guide option on the grey menu. Our Aligator Rock 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 (Aligator Rock) 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 Aligator Rock 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.

Aligator Rock is 15 km (9 miles) from Wahiawa. If you plan a vacation in Oahu, look for hotels and other accommodation in Wahiawa. Wahiawa has rooms for a wide range of budgets as well as car hire and transport links.

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