Goat Island/Mokuauia Surf Break

Lat Long: 21.66° N 157.92° W

Issued: 1 am 10 Jun 2026 (local time)

Forecast update in  hr  min

Today's Goat Island/Mokuauia sea temperature is
25.1° 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 10 Jun 2026:

  • Best quality surf: Thursday 11 Jun, 5PM (local time) - 3.5ft (1.1m), 8s period, ENE swell with cross-offshore winds.
  • Most powerful swell: Wednesday 10 Jun, 11AM (local time) - 5ft (1.6m), 8s period, ENE swell with 280 kJ wave energy.
  • Next surfable swell (1★+): Thursday 11 Jun, 5PM (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 5PM. 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 1.6m 8s and forecast to arrive on Wednesday (Jun 10) at 11AM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.3m 5s period and expected on Tuesday (Jun 16) at 5AM.

Wave TypeTime (HST) & Date Wave Height & Period
Next good surf (1 star+) 5PM (Thu 11th Jun)3.5ft (1.1m) 8s
Best Surf 5PM (Thu 11th Jun)3.5ft (1.1m) 8s
Most Powerful11AM (Wed 10th Jun)5ft (1.6m) 8s

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

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

Days 4-6 Weather Summary

Light rain (total 2mm), mostly falling on Sun night. Warm (max 24°C on Sat morning, min 23°C on Sat morning). Wind will be generally light.

Wednesday
10
Thursday
11
Friday
12
Saturday
13
Sunday
14
Monday
15
Tuesday
16
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
1
0
0
1
0
0
0
0
0
0
0
0
0
1
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)
1.6
ENE
8
1.6
ENE
8
1.3
ENE
8
1.2
ENE
8
1.1
ENE
8
1
ENE
8
0.9
ENE
7
0.8
ENE
7
0.7
ENE
7
0.7
E
7
0.7
ENE
7
0.5
E
7
0.6
ENE
7
0.8
ENE
7
0.9
ENE
7
0.3
NW
12
0.9
ENE
7
1
ENE
10
0.6
NW
11
0.7
NW
11
1
ENE
9
Wave Graph
Metric surfscale
Energy kJ
280
266
196
169
143
120
91
71
52
47
49
24
36
56
66
23
62
179
94
114
154
Wind (km/h)
25
E
25
E
15
E
20
E
15
ENE
15
E
15
E
10
ENE
10
E
15
E
15
ENE
15
E
20
ENE
20
NE
20
ENE
20
ENE
20
ENE
15
ENE
20
E
20
ENE
15
E
Wind State
cross
cross
cross-off
cross
cross-off
cross
cross
cross-off
cross
cross
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross
cross-off
cross
High Tide
12:01PM0.56m
9:23PM0.43m
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
Low Tide
5:17PM0.27m
4:44AM-0.08m
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
clear
clear
rain showers
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
rain showers
clear
clear
clear
clear
clear
rain showers
<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
7:14
7:15
7:15
7:15
7:15
 mm
2
2
2
Temp °C
24
25
24
25
24
24
24
25
24
24
24
23
24
24
24
24
24
24
24
24
23
Feels °C
23
24
24
25
24
25
24
25
25
24
24
23
23
24
24
23
23
23
23
23
22
Swell 1
Height (m)
Direction
Period (s)
0.4
WNW
12
0.4
WNW
11
0.4
WNW
11
0.4
WNW
11
0.4
WNW
10
1
ENE
8
0.9
ENE
7
0.8
ENE
7
0.7
ENE
7
0.4
SW
18
0.4
SW
18
0.5
E
7
0.5
SSW
19
0.7
SSW
18
0.5
SSW
17
0.5
SSW
16
0.5
SSW
16
0.5
SSW
15
0.6
NW
11
0.7
NW
11
0.7
NW
10
Energy kJ
55
50
46
45
43
120
91
71
52
81
80
24
210
273
170
147
142
126
94
114
108
Swell 2
Height (m)
Direction
Period (s)
0.1
NW
8
0.1
NW
8
0.1
S
13
0.1
SW
15
0.1
SW
20
0.4
NW
10
0.3
WNW
10
0.4
SW
19
0.3
SW
19
0.3
SSW
23
0.3
SSW
21
0.4
SSW
20
0.4
NW
8
0.3
NW
7
0.3
NNW
7
0.3
NW
12
0.4
ENE
11
0.5
NW
12
0.5
SSW
14
0.4
SSW
14
0.4
SSW
14
Energy kJ
3
2
3
8
15
24
18
96
57
103
90
132
21
8
10
23
45
68
120
81
73
Swell 3
Height (m)
Direction
Period (s)
0.1
S
11
0.1
SW
12
0.1
SW
15
0.1
SW
12
0.1
SW
12
0.2
SSW
21
0.2
SSW
20
0.3
WNW
10
0.2
WNW
9
0.2
WNW
9
0.2
SSW
13
0.4
SW
17
0.3
SW
16
0.2
SSW
12
0.2
WNW
12
0.2
ENE
12
0.3
NW
11
0.3
NW
10
0.2
N
7
0.2
N
9
0.2
N
8
Energy kJ
2
6
9
6
6
45
37
18
8
8
17
70
40
14
14
13
19
15
4
6
5
Wind waves
Height (m)
Direction
Period (s)
1.6
ENE
8
1.6
ENE
8
1.3
ENE
8
1.2
ENE
8
1.1
ENE
8
0.7
E
7
0.7
ENE
7
0.5
ENE
4
0.6
ENE
7
0.8
ENE
7
0.9
ENE
7
1
ENE
5
0.9
ENE
7
1
ENE
10
1.2
ENE
6
1.1
ENE
6
1
ENE
9
Energy kJ
280
266
196
169
143
47
49
9
36
56
66
60
62
179
93
97
154
Nearest Offshore or Glassy
Rating
(10 max)
1
1
1
1
1
1
1
1
1
1
1
1
1
4
4
1
3
3
1
1
1
Distance (km)
15
15
15
15
15
0
17
0
13
8
17
17
17
36
37
17
36
37
15
15
15
Best forecast wave conditions in Oahu
Rating
(10 max)
1
1
1
1
1
2
2
2
1
3
3
4
4
4
4
1
3
3
1
1
1
Best forecast wave conditions in United States
Rating
(10 max)
4
1
1
4
4
2
3
2
1
3
4
4
4
4
4
4
3
3
3
1
1
Header Global
Rating
(10 max)
5
7
9
6
6
6
7
7
4
5
4
6
5
5
4
6
7
6
5
4
9
  • 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 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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