Goat Island/Mokuauia Surf Break

Lat Long: 21.66° N 157.92° W

Issued: 1 am 19 Jun 2026 (local time)

Forecast update in  hr  min

Today's Goat Island/Mokuauia sea temperature is
25.6° C

Normal for this time of year

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 19 Jun 2026:

  • Most powerful swell: Friday 26 Jun, 8AM (local time) - 5.5ft (1.7m), 6s period, ENE swell with 227 kJ wave energy.

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

The most powerful waves expected at Goat Island/Mokuauia in the next 16 days are 1.7m 6s and forecast to arrive on Friday (Jun 26) at 8AM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.5m 6s period and expected on Tuesday (Jun 23) at 2PM.

Wave TypeTime (HST) & Date Wave Height & Period
Next good surf (1 star+)--
Best Surf--
Most Powerful 8AM (Fri 26th Jun)5.5ft (1.7m) 6s

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 26°C on Sat afternoon, min 23°C on Fri night). Wind will be generally light.

Days 4-6 Weather Summary

Mostly dry. Warm (max 25°C on Mon morning, min 24°C on Mon morning). Wind will be generally light.

Friday
19
Saturday
20
Sunday
21
Monday
22
Tuesday
23
Wednesday
24
Thursday
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
0
0
0
0
0
0
0
0
0
0
0
1
0
0
0
1
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)
0.5
NW
9
0.9
E
5
0.9
E
5
0.7
E
5
0.8
E
5
0.4
NW
8
0.4
NE
8
0.6
NE
8
0.6
NE
11
0.6
NE
11
0.7
NE
10
0.6
NE
10
0.6
NE
10
1.4
E
6
1.3
ENE
6
0.5
NE
9
0.4
N
8
1.5
ENE
6
1.6
ENE
6
1.6
ENE
7
1.5
ENE
7
Wave Graph
Metric surfscale
Energy kJ
43
47
43
24
34
18
23
37
97
94
106
61
58
146
130
41
21
181
209
209
204
Wind (km/h)
20
E
20
ESE
20
ESE
20
ESE
15
E
15
E
15
E
15
ENE
20
ENE
15
E
20
E
20
E
25
ENE
25
ENE
25
E
20
ENE
25
ENE
25
ENE
25
ENE
25
ENE
25
E
Wind State
cross
cross-on
cross-on
cross
cross
cross
cross
cross-off
cross-off
cross
cross-off
cross
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
High Tide
6:31PM0.67m
7:00AM0.27m
7:03PM0.60m
9:27AM0.34m
7:27PM0.53m
11:08AM0.44m
7:42PM0.47m
12:03PM0.54m
7:41PM0.42m
12:39PM0.61m
1:10PM0.66m
Low Tide
10:39AM0.04m
1:51AM0.13m
11:30AM0.13m
2:29AM0.09m
12:39PM0.22m
3:03AM0.06m
2:40PM0.29m
3:34AM0.02m
5:28PM0.31m
4:05AM-0.01m
4:36AM-0.03m
clear
part cloud
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
thunderstorm
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:48
5:48
5:48
5:50
5:50
5:50
5:50
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
7:15
7:15
7:16
7:16
7:16
7:16
7:16
 mm
2
Temp °C
25
25
25
25
26
24
25
25
24
25
25
24
24
25
24
25
25
24
25
25
24
Feels °C
26
26
26
26
27
26
26
25
24
26
25
23
23
24
23
25
24
23
24
24
23
Swell 1
Height (m)
Direction
Period (s)
0.5
NW
9
0.4
NW
9
0.4
NW
8
0.4
NW
8
0.4
NW
8
0.4
NW
8
0.4
NE
8
0.6
NE
8
0.6
NE
11
0.6
NE
11
0.7
NE
10
0.6
NE
10
0.6
NE
10
0.6
NE
10
0.6
NE
10
0.5
N
8
0.4
N
8
0.3
N
8
0.4
NW
12
0.4
NW
11
0.4
NW
11
Energy kJ
41
28
25
24
23
14
23
37
97
94
106
61
58
57
76
33
21
11
37
31
30
Swell 2
Height (m)
Direction
Period (s)
0.4
NE
8
0.4
NE
8
0.3
NE
8
0.4
NE
7
0.3
NE
8
0.4
NE
8
0.3
ESE
7
0.3
ESE
7
0.4
NNW
7
0.4
NNW
7
0.4
N
7
0.5
N
7
0.5
N
7
0.6
N
8
0.6
N
8
0.5
NE
9
0.3
SSW
18
0.2
WNW
12
0.3
SSW
16
0.3
SSW
16
0.2
SSW
14
Energy kJ
23
23
9
14
10
18
10
10
15
15
15
25
25
49
47
41
60
15
50
49
21
Swell 3
Height (m)
Direction
Period (s)
0.3
SSW
13
0.3
SSW
13
0.2
SSW
13
0.2
S
11
0.2
S
11
0.3
ESE
7
0.3
NNW
7
0.3
NNW
7
0.3
ESE
7
0.3
ESE
7
0.3
NW
11
0.3
NW
10
0.4
NW
10
0.3
NW
10
0.3
NW
9
0.3
NW
9
0.3
NW
10
0.2
SSW
16
0.2
N
7
0.2
N
7
0.1
N
7
Energy kJ
33
33
16
10
10
10
10
10
9
9
19
16
25
15
13
13
15
25
4
4
1
Wind waves
Height (m)
Direction
Period (s)
0.9
E
5
0.9
E
5
0.9
E
5
0.7
E
5
0.8
E
5
0.6
E
5
0.6
E
4
0.5
E
4
0.5
ENE
4
0.4
ENE
4
0.7
E
3
1
E
5
1.2
E
5
1.4
E
6
1.3
ENE
6
1.3
ENE
6
1.4
ENE
6
1.5
ENE
6
1.6
ENE
6
1.6
ENE
7
1.5
ENE
7
Energy kJ
43
47
43
23
34
16
15
9
8
5
11
57
78
146
130
126
137
181
209
209
204
Nearest Offshore or Glassy
Rating
(10 max)
1
1
2
2
2
1
2
2
1
1
1
1
1
1
1
1
3
2
2
1
1
Distance (km)
15
14
37
40
37
36
37
37
15
15
15
15
15
16
15
15
37
36
36
37
36
Best forecast wave conditions in Oahu
Rating
(10 max)
1
1
2
2
2
2
2
2
1
1
1
1
1
1
1
1
3
2
2
2
1
Best forecast wave conditions in United States
Rating
(10 max)
2
3
3
2
2
4
2
2
2
1
1
3
1
2
3
1
3
3
2
2
4
Header Global
Rating
(10 max)
4
4
5
5
8
9
6
7
5
6
5
5
6
5
6
6
6
8
8
9
9
  • 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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