Goat Island/Mokuauia Surf Break

Lat Long: 21.66° N 157.92° W

Issued: 1 pm 01 Jul 2026 (local time)

Forecast update in  hr  min

Today's Goat Island/Mokuauia sea temperature is
25.9° 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 2 Jul 2026:

  • Most powerful swell: Tuesday 7 Jul, 11PM (local time) - 7ft (2.2m), 8s period, ENE swell with 525 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 2.2m 8s and forecast to arrive on Tuesday (Jul 07) 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 0.4m 14s period and expected on Wednesday (Jul 01) at 5PM.

Wave TypeTime (HST) & Date Wave Height & Period
Next good surf (1 star+)--
Best Surf--
Most Powerful11PM (Tue 7th Jul)7ft (2.2m) 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

Mostly dry. Warm (max 25°C on Wed afternoon, min 24°C on Wed night). Mainly fresh winds.

Days 5-7 Weather Summary

Light rain (total 6mm), mostly falling on Sat night. Warm (max 25°C on Sat afternoon, min 23°C on Sun night). Mainly fresh winds.

Wed
1
Thursday
2
Friday
3
Saturday
4
Sunday
5
Monday
6
Tuesday
7
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
Rating
(10 max)
0
0
1
0
1
1
0
0
0
0
0
0
0
0
1
0
0
0
0
1
0
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
2
ENE
8
1.8
ENE
8
1.6
ENE
8
1.3
NE
8
1.8
ENE
8
1.7
ENE
8
1.8
ENE
8
1.8
ENE
8
1.7
ENE
8
1.7
ENE
8
1.9
ENE
8
2.1
ENE
7
1.9
ENE
7
1.9
ENE
7
2.1
ENE
8
2.1
ENE
8
2
ENE
8
2
ENE
8
2.1
ENE
8
2.1
ENE
8
2
ENE
8
Wave Graph
Metric surfscale
Energy kJ
515
414
292
210
353
347
382
362
336
365
393
455
397
397
508
480
447
471
481
509
464
Wind (km/h)
25
E
25
ENE
20
ENE
25
ENE
25
ENE
20
E
25
ENE
25
ENE
30
ENE
30
ENE
30
E
30
ENE
30
ENE
35
ENE
35
ENE
30
ENE
30
ENE
30
ENE
30
ENE
30
E
30
ENE
Wind State
cross
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
High Tide
4:14PM0.72m
2:01AM0.31m
4:42PM0.71m
2:50AM0.31m
5:07PM0.69m
3:50AM0.30m
5:28PM0.66m
5:09AM0.30m
5:46PM0.62m
7:02AM0.33m
6:02PM0.57m
9:32AM0.41m
6:16PM0.51m
11:04AM0.53m
Low Tide
10:56PM0.21m
8:38AM-0.05m
11:30PM0.20m
9:10AM-0.01m
00:02AM0.17m
9:42AM0.04m
00:34AM0.15m
10:17AM0.11m
1:07AM0.11m
11:02AM0.20m
1:44AM0.07m
12:32PM0.29m
2:27AM0.02m
part cloud
part cloud
clear
clear
part cloud
part cloud
clear
part cloud
clear
clear
rain showers
rain showers
clear
rain showers
clear
clear
clear
rain showers
clear
rain showers
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:52
5:52
5:52
5:52
5:54
5:54
5:54
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
7:17
7:17
7:17
7:17
7:17
7:17
7:17
7:17
 mm
1
1
2
2
1
Temp °C
25
24
25
25
24
25
25
24
25
25
24
24
25
24
25
25
24
25
25
24
25
Feels °C
24
23
24
24
22
25
24
22
23
23
22
21
22
21
22
22
21
22
23
21
23
Swell 1
Height (m)
Direction
Period (s)
0.4
SW
14
0.4
SW
14
0.4
SW
14
0.9
E
8
0.4
SW
13
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
Energy kJ
53
48
51
95
44
48
84
103
90
87
44
42
41
102
50
89
42
41
41
37
39
Swell 2
Height (m)
Direction
Period (s)
0.2
WNW
14
0.2
WNW
14
0.2
W
13
0.4
SW
14
0.4
NW
12
0.4
SW
13
0.3
SW
16
0.3
SSW
16
0.4
SW
16
0.4
SW
15
0.4
ESE
9
0.4
SW
14
0.3
SSW
18
0.3
NW
10
0.2
SSW
13
0.1
NW
10
0.2
SSW
15
0.1
NW
9
0.1
NW
9
0.1
SW
14
0.1
SW
13
Energy kJ
20
19
14
48
40
45
41
51
64
60
27
54
60
16
17
4
21
3
3
7
7
Swell 3
Height (m)
Direction
Period (s)
0.1
NW
8
0.1
S
20
0.1
NW
14
0.2
WNW
13
0.2
SSW
18
0.2
SSW
17
0.2
SSW
12
0.2
SSW
12
0.2
S
21
0.2
SSW
20
0.4
SW
15
0.3
SSW
18
0.4
SW
14
0.1
S
10
0.2
NNW
10
0.1
W
10
0.1
NW
9
0.1
NW
9
0.1
NW
9
Energy kJ
2
8
7
17
31
29
14
15
35
38
55
62
52
2
10
2
3
3
3
Wind waves
Height (m)
Direction
Period (s)
2
ENE
8
1.8
ENE
8
1.6
ENE
8
1.3
NE
8
1.8
ENE
8
1.7
ENE
8
1.8
ENE
8
1.8
ENE
8
1.7
ENE
8
1.7
ENE
8
1.9
ENE
8
2.1
ENE
7
1.9
ENE
7
1.9
ENE
7
2.1
ENE
8
2.1
ENE
8
2
ENE
8
2
ENE
8
2.1
ENE
8
2.1
ENE
8
2
ENE
8
Energy kJ
515
414
292
210
353
347
382
362
336
365
393
455
397
397
508
480
447
471
481
509
464
Nearest Offshore or Glassy
Rating
(10 max)
2
1
2
1
1
2
2
1
2
2
3
2
2
3
1
1
2
1
1
2
2
Distance (km)
36
36
36
153
36
36
37
15
36
37
36
37
37
36
153
153
36
37
37
36
36
Best forecast wave conditions in Oahu
Rating
(10 max)
2
1
2
2
2
2
2
3
3
3
3
3
3
2
2
2
2
2
Best forecast wave conditions in United States
Rating
(10 max)
2
2
3
2
2
2
2
3
3
3
3
3
3
3
2
2
4
2
2
4
3
Header Global
Rating
(10 max)
9
7
9
9
5
5
5
7
5
5
9
7
7
7
9
9
7
7
9
9
6
  • 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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