Goat Island/Mokuauia surfForecast / HAW – Oahu / USA

information circle16 Day Weather and Surf, issued 7 am Monday 11 May 2026 HST
Forecast update in hr  min  s Forecast update imminent
Goat Island/Mokuauia surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Goat Island/Mokuauia sea temperature is
25.2° C
(Which is normal for this time of year)

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 1.5m 14s and forecast to arrive on Thursday (May 14) 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 1.3m 6s period and expected on Monday (May 11) at 2PM.

Wave TypeTime (HST) & Date Wave Height & Period
Next good surf (1 star+)--
Best Surf--
Most Powerful 8PM (Thu 14th May)5ft (1.5m) 14s

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

Some drizzle, heaviest during Wed afternoon. Warm (max 24°C on Mon morning, min 23°C on Mon morning). Mainly fresh winds.

Days 4-6 Weather Summary

Moderate rain (total 10mm), heaviest on Fri afternoon. Warm (max 24°C on Thu morning, min 23°C on Thu morning). Mainly fresh winds.

Monday
11
Tuesday
12
Wednesday
13
Thursday
14
Friday
15
Saturday
16
Sunday
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
0
0
0
0
0
0
0
1
1
2
2
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)
1.2
NNW
11
0.9
NW
11
1.7
ENE
6
0.9
NNW
11
1.8
E
6
1.8
E
7
1.8
E
7
2
E
7
1.9
E
7
1.1
NW
15
1.4
NW
14
1.4
NW
13
1.9
E
8
2
E
8
2
E
8
1.9
ENE
8
1.9
ENE
8
1.8
ENE
8
1.6
ENE
8
1.8
ENE
8
1.9
E
8
Wave Graph
Metric surfscale
Energy kJ
340
194
213
200
259
289
297
371
387
558
731
632
430
471
509
473
449
427
350
437
476
Wind (km/h)
25
ENE
30
ENE
30
E
30
E
30
E
30
E
30
E
30
E
30
E
25
ENE
25
ENE
20
E
25
E
25
E
30
E
35
E
25
E
25
E
25
E
25
ENE
25
E
cross-off
cross-off
cross
cross
cross
cross
cross-off
cross
cross-off
cross-off
cross-off
cross-off
cross
cross
cross
cross
cross
cross
cross
cross-off
cross
High Tide
11:27AM0.34m
10:35PM0.51m
12:07PM0.46m
11:00PM0.49m
12:45PM0.58m
11:25PM0.45m
1:26PM0.68m
11:52PM0.42m
2:08PM0.76m
00:21AM0.38m
2:54PM0.80m
00:51AM0.35m
3:43PM0.81m
1:21AM0.32m
Low Tide
3:59PM0.16m
5:15AM0.01m
5:13PM0.17m
5:34AM-0.05m
6:16PM0.18m
6:00AM-0.11m
7:16PM0.19m
6:30AM-0.15m
8:15PM0.20m
7:05AM-0.18m
9:16PM0.20m
7:44AM-0.19m
10:23PM0.21m
clear
clear
part cloud
clear
clear
part cloud
clear
rain showers
clear
clear
clear
rain showers
rain showers
thunderstorm
thunderstorm
clear
clear
thunderstorm
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:54
5:54
5:52
5:52
5:52
5:52
5:52
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
7:00
7:00
7:01
7:01
7:02
7:02
7:04
1
2
1
4
2
1
Temp °C
24
24
23
24
24
23
24
24
23
24
24
23
24
24
24
24
24
24
25
25
24
22
22
20
21
21
20
21
21
20
22
22
21
22
22
22
21
22
23
24
24
23
Swell 1
Height (m)
Direction
Period (s)
1.2
NNW
11
0.9
NW
11
0.8
NW
11
0.9
NNW
11
0.9
NNW
10
0.8
NNW
10
0.7
NNW
9
0.5
NW
9
0.7
NW
16
1.1
NW
15
1.4
NW
14
1.4
NW
13
1.1
NW
12
1
NW
12
0.8
NW
11
0.6
NW
11
0.6
NNW
11
0.6
NNW
10
0.6
NNW
10
0.4
NNW
10
0.4
NNW
9
Energy kJ
340
194
137
161
157
120
73
40
271
558
731
632
386
278
147
96
79
71
68
38
33
Swell 2
Height (m)
Direction
Period (s)
0.1
S
18
0.5
E
8
0.4
NNW
13
0.6
NW
10
0.2
SSW
16
0.2
SSW
16
0.2
SSW
15
0.4
N
9
0.4
NW
9
0.5
NW
11
0.4
N
8
0.3
N
8
0.4
N
8
0.3
N
8
0.3
NNW
15
0.4
SW
15
0.4
SW
15
0.2
SSW
15
0.4
SW
15
0.4
SW
14
0.4
SW
14
Energy kJ
6
33
54
64
25
25
21
25
27
60
22
12
20
11
42
58
55
21
54
54
52
Swell 3
Height (m)
Direction
Period (s)
0.1
S
10
0.1
SW
17
0.1
SW
18
0.1
SW
16
0.1
S
16
0.2
N
12
0.1
N
10
0.3
NW
18
0.4
N
8
0.4
N
8
0.2
SSW
14
0.4
SW
16
0.4
SW
16
0.4
SW
16
0.2
SSW
16
0.3
NNW
13
0.1
S
10
0.2
SSW
13
0.1
SE
11
0.2
SSW
21
0.1
NW
14
Energy kJ
2
12
12
10
5
11
2
50
22
22
18
69
64
64
25
35
2
16
5
45
8
Wind waves
Height (m)
Direction
Period (s)
1
E
6
1.3
NE
6
1.7
ENE
6
1.6
E
6
1.8
E
6
1.8
E
7
1.8
E
7
2
E
7
1.9
E
7
1.7
ENE
7
1.7
ENE
7
1.7
ENE
8
1.9
E
8
2
E
8
2
E
8
1.9
ENE
8
1.9
ENE
8
1.8
ENE
8
1.6
ENE
8
1.8
ENE
8
1.9
E
8
Energy kJ
62
132
213
200
259
289
297
371
387
327
327
345
430
471
509
473
449
427
350
437
476
Nearest Offshore or Glassy
Rating
(10 max)
2
1
2
2
1
1
1
1
2
3
2
3
2
2
1
2
1
1
1
2
1
Distance (km)
37
153
16
36
36
36
36
37
16
15
153
15
15
15
16
36
16
15
15
36
36
Best forecast wave conditions in Oahu
Rating
(10 max)
2
2
2
1
1
1
1
2
3
3
3
2
2
2
2
1
1
2
1
Best forecast wave conditions in United States
Rating
(10 max)
3
2
3
2
1
3
1
1
4
3
2
3
3
2
5
2
3
4
1
4
7
Header Global
Rating
(10 max)
9
5
9
9
5
6
8
5
5
5
5
5
5
4
7
4
5
7
4
4
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 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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