Goat Island/Mokuauia Surf Break

Lat Long: 21.66° N 157.92° W

Issued: 1 am 11 Jun 2026 (local time)

Forecast update in  hr  min

Today's Goat Island/Mokuauia sea temperature is
25.2° C

Slightly cooler than normal

Goat Island/Mokuauia surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.


Goat Island/Mokuauia surf forecast from 11 Jun 2026:

  • Best quality surf: Tuesday 16 Jun, 5PM (local time) - 3ft (0.9m), 9s period, ENE swell with cross-offshore winds.
  • Most powerful swell: Monday 15 Jun, 8PM (local time) - 3.5ft (1.1m), 10s period, ENE swell with 232 kJ wave energy.
  • Next surfable swell (1★+): Thursday 11 Jun, 2PM (local time) - 3.5ft (1.1m), 8s period with ENE swell.

Best Forecast Surf Conditions for Goat Island/Mokuauia this week:

The surf forecast for Goat Island/Mokuauia over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Thursday (Jun 11) at 2PM. The primary swell is predicted to be 1.1m and 8s period. The wind is predicted to be cross-offshore as the swell arrives.

The most powerful waves expected at Goat Island/Mokuauia in the next 16 days are 1.1m 10s and forecast to arrive on Monday (Jun 15) at 8PM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.9m 5s period and expected on Monday (Jun 15) at 11PM.

Wave TypeTime (HST) & Date Wave Height & Period
Next good surf (1 star+) 2PM (Thu 11th Jun)3.5ft (1.1m) 8s
Best Surf 5PM (Tue 16th Jun)3ft (0.9m) 9s
Most Powerful 8PM (Mon 15th Jun)3.5ft (1.1m) 10s

Table - best surf conditions forecast for Goat Island/Mokuauia over the next 16 days.


Updates in  hr  min  s Forecast update imminent

Short Range Forecast

Mostly dry. Warm (max 25°C on Thu afternoon, min 23°C on Thu morning). Wind will be generally light.

Days 4-6 Weather Summary

Light rain (total 2mm), mostly falling on Mon morning. Warm (max 25°C on Tue afternoon, min 23°C on Sun morning). Wind will be generally light.

Thursday
11
Friday
12
Saturday
13
Sunday
14
Monday
15
Tuesday
16
Wednesday
17
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
0
0
1
0
0
0
0
0
0
1
0
0
0
0
2
0
0
1
0
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
1.1
ENE
8
1
ENE
8
0.9
ENE
8
0.9
ENE
7
0.8
ENE
7
0.7
ENE
7
0.6
ENE
7
0.6
E
7
0.8
ENE
7
0.7
ENE
7
0.7
ENE
7
0.7
ENE
7
0.8
ENE
7
0.9
ENE
6
1
ENE
10
0.9
ENE
9
0.9
ENE
9
0.8
ENE
8
0.6
NW
10
0.8
ENE
10
0.8
ENE
9
Wave Graph
Metric surfscale
Energy kJ
147
120
99
91
71
52
37
34
53
40
40
41
51
66
179
116
121
90
82
122
98
Wind (km/h)
15
E
15
ENE
10
E
15
E
15
ENE
10
E
15
ENE
15
ENE
15
ENE
15
ENE
15
ENE
15
ENE
20
E
20
E
15
E
15
E
15
ENE
15
E
15
ESE
15
E
15
ESE
Wind State
cross
cross-off
cross
cross
cross-off
cross
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross
cross
cross
cross
cross-off
cross
cross
cross
cross
High Tide
12:42PM0.67m
10:05PM0.40m
1:23PM0.77m
10:50PM0.37m
2:07PM0.82m
11:37PM0.34m
2:52PM0.85m
00:26AM0.33m
3:40PM0.85m
1:18AM0.31m
4:27PM0.83m
2:16AM0.30m
5:12PM0.79m
3:24AM0.28m
Low Tide
6:41PM0.26m
5:21AM-0.13m
7:48PM0.25m
6:01AM-0.16m
8:47PM0.23m
6:45AM-0.18m
9:42PM0.22m
7:31AM-0.18m
10:35PM0.21m
8:19AM-0.16m
11:28PM0.20m
9:06AM-0.11m
00:20AM0.18m
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
rain showers
rain showers
clear
clear
clear
clear
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:48
5:48
5:48
5:48
5:48
5:48
5:48
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
7:14
7:14
7:15
7:15
7:15
7:15
7:15
 mm
1
1
Temp °C
24
25
24
24
24
24
24
25
24
24
24
24
24
24
24
24
25
24
25
25
24
Feels °C
24
26
25
24
24
25
24
25
24
24
24
24
23
23
24
24
25
25
25
25
25
Swell 1
Height (m)
Direction
Period (s)
1.1
ENE
8
0.4
WNW
10
0.9
ENE
8
0.9
ENE
7
0.8
ENE
7
0.7
ENE
7
0.6
ENE
7
0.6
E
7
0.4
SSW
20
0.5
SSW
19
0.7
SSW
18
0.7
ENE
7
0.5
SSW
16
0.5
SSW
16
0.5
SSW
15
0.5
NW
11
0.9
ENE
9
0.8
ENE
8
0.6
NW
10
0.7
NW
10
0.8
ENE
9
Energy kJ
147
43
99
91
71
52
37
34
132
210
276
41
147
142
126
58
121
90
82
98
98
Swell 2
Height (m)
Direction
Period (s)
0.4
WNW
11
0.1
SW
20
0.4
NW
10
0.3
WNW
10
0.4
SW
19
0.3
SW
19
0.4
SW
18
0.4
SW
18
0.4
SW
17
0.3
SW
16
0.3
NW
7
0.6
SSW
17
0.3
NW
12
0.4
NE
11
0.5
NW
12
0.5
SSW
14
0.6
NW
11
0.6
NW
10
0.4
SSW
13
0.4
SSW
13
0.7
NW
10
Energy kJ
45
15
24
18
96
57
81
80
70
40
7
200
23
29
68
120
96
87
58
68
98
Swell 3
Height (m)
Direction
Period (s)
0.1
SW
15
0.1
SW
12
0.2
SSW
21
0.2
SSW
20
0.3
WNW
10
0.2
WNW
9
0.3
SSW
23
0.3
SSW
21
0.3
NW
8
0.3
NW
8
0.2
NNW
8
0.3
NNW
7
0.2
NNW
7
0.3
NW
11
0.2
SSW
11
0.2
N
6
0.4
SSW
14
0.4
SSW
14
0.3
NE
10
0.3
N
8
0.3
SSW
13
Energy kJ
8
6
45
37
18
8
103
90
11
9
6
11
5
19
11
3
80
73
16
12
31
Wind waves
Height (m)
Direction
Period (s)
1
ENE
8
0.4
NE
3
0.8
ENE
7
0.7
ENE
7
0.7
ENE
7
0.8
ENE
7
0.9
ENE
6
1
ENE
10
0.9
ENE
9
0.7
ENE
8
0.8
ENE
10
Energy kJ
120
2
53
40
40
51
66
179
116
61
122
Nearest Offshore or Glassy
Rating
(10 max)
1
1
1
1
1
1
3
3
1
4
4
1
4
3
1
1
2
1
1
1
1
Distance (km)
15
0
17
13
0
8
13
36
17
36
37
0
36
37
15
14
0
13
13
8
15
Best forecast wave conditions in Oahu
Rating
(10 max)
1
2
2
1
2
3
3
4
4
4
4
4
4
3
1
1
3
2
2
1
1
Best forecast wave conditions in United States
Rating
(10 max)
4
2
3
1
2
3
3
4
4
4
4
4
4
4
3
1
3
3
2
3
3
Header Global
Rating
(10 max)
6
6
9
7
5
5
5
4
4
5
4
5
5
5
5
5
4
4
4
5
5
  • 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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Information about the Goat Island/Mokuauia Surf forecast

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

Goat Island/Mokuauia is 21 km (13 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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