Goat Island/Mokuauia surfForecast / HAW – Oahu / USA

information circle16 Day Weather and Surf, issued 7 am Friday 08 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
25.1° C
(Which is slightly warmer than usual)

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 12s and forecast to arrive on Friday (May 08) at 11AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.4m 6s period and expected on Saturday (May 09) at 11AM.

Wave TypeTime (HST) & Date Wave Height & Period
Next good surf (1 star+)--
Best Surf--
Most Powerful11AM (Fri 8th May)5.5ft (1.7m) 12s

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 3mm), mostly falling on Sat afternoon. Warm (max 24°C on Fri morning, min 23°C on Fri morning). Wind will be generally light.

Days 4-6 Weather Summary

Light rain (total 9mm), mostly falling on Tue night. Warm (max 24°C on Mon morning, min 23°C on Mon morning). Mainly fresh winds.

Friday
8
Saturday
9
Sunday
10
Monday
11
Tuesday
12
Wednesday
13
Thursday
14
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
2
2
1
0
1
1
1
0
0
0
0
0
0
0
0
0
0
0
1
1
2
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
1.7
NW
12
1.5
NW
12
1.3
NW
11
1
NW
11
1.6
NE
6
0.9
NNW
11
1.3
NNW
12
1.2
NNW
11
1.2
NNW
12
1.2
NNW
11
0.9
NW
11
0.8
NW
11
1.7
ENE
6
1.7
ENE
6
1.8
E
7
2.1
ENE
7
2.4
NE
7
2.5
ENE
8
2.4
ENE
8
2.5
ENE
8
2.3
ENE
8
Wave Graph
Metric surfscale
Energy kJ
864
625
418
233
200
207
456
340
371
317
194
137
213
219
284
401
598
740
663
717
591
Wind (km/h)
15
ENE
20
ENE
20
ENE
25
ENE
20
NE
20
ENE
20
E
25
ENE
25
ENE
30
ENE
30
ENE
25
ENE
30
ENE
30
ENE
30
ENE
35
ENE
35
ENE
35
ENE
35
ENE
35
ENE
30
ENE
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
cross-off
High Tide
8:49PM0.53m
9:36PM0.53m
10:36AM0.23m
10:09PM0.53m
11:27AM0.34m
10:35PM0.51m
12:07PM0.46m
11:00PM0.49m
12:45PM0.58m
11:25PM0.45m
1:26PM0.68m
11:52PM0.42m
Low Tide
10:45AM0.04m
12:13PM0.09m
5:12AM0.11m
2:23PM0.13m
5:04AM0.07m
3:59PM0.16m
5:15AM0.01m
5:13PM0.17m
5:34AM-0.05m
6:16PM0.18m
6:00AM-0.11m
7:16PM0.19m
clear
clear
part cloud
part cloud
thunderstorm
rain showers
part cloud
rain showers
clear
part cloud
clear
clear
clear
clear
rain showers
rain showers
rain showers
rain showers
rain showers
rain showers
rain showers
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:56
5:54
5:54
5:54
5:54
5:52
5:52
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
7:00
7:00
7:00
7:00
7:00
7:01
7:01
1
1
1
4
1
1
3
2
2
2
Temp °C
24
24
23
24
24
23
24
24
23
24
24
23
24
24
23
23
23
23
23
23
23
24
24
22
23
23
22
23
23
21
22
21
21
21
21
20
19
19
19
19
19
19
Swell 1
Height (m)
Direction
Period (s)
1.7
NW
12
1.5
NW
12
1.3
NW
11
1
NW
11
0.8
NW
11
1.3
NNE
6
1.3
NNW
12
1.2
NNW
11
1.2
NNW
12
1.2
NNW
11
0.9
NW
11
0.9
N
7
0.5
NNW
11
0.7
NNW
10
0.8
NNW
10
0.6
NNW
9
0.4
NW
9
0.5
NW
16
0.9
NW
15
0.8
NW
13
1.1
NW
14
Energy kJ
864
625
418
233
165
115
456
340
371
317
194
72
68
102
117
55
29
129
314
215
465
Swell 2
Height (m)
Direction
Period (s)
0.3
NE
9
0.2
SSW
16
0.4
ESE
8
0.3
ESE
8
0.3
ESE
8
0.9
NNW
11
0.4
ESE
8
0.4
NW
13
0.4
ESE
8
0.1
S
18
0.8
N
7
0.8
NW
11
0.6
NW
10
0.6
NW
10
0.2
SSW
16
0.2
SSW
15
0.2
SSW
14
0.4
NW
9
0.5
N
9
0.7
NNW
16
0.3
N
9
Energy kJ
13
25
22
14
14
207
22
63
22
6
64
137
63
63
25
21
21
20
39
223
13
Swell 3
Height (m)
Direction
Period (s)
0.2
SSW
13
0.1
NE
9
0.2
S
16
0.2
SSW
15
0.3
NW
14
0.4
NW
13
0.1
SW
13
0.1
S
11
0.1
SW
13
0.1
S
10
0.1
SW
17
0.2
N
13
0.2
SSW
15
0.2
SSW
16
0.1
N
12
0.2
N
12
0.2
N
12
0.2
SSW
14
0.2
SSW
14
0.5
N
9
0.2
SSW
17
Energy kJ
18
3
20
21
32
61
6
3
7
2
12
13
22
25
3
12
11
21
20
39
27
Wind waves
Height (m)
Direction
Period (s)
0.7
E
8
0.8
E
8
0.8
ENE
5
1.4
NE
6
1.6
NE
6
1
ENE
6
1
E
6
1.2
ENE
5
1.4
E
6
1.3
E
6
1.2
E
6
1.7
ENE
6
1.7
ENE
6
1.8
E
7
2.1
ENE
7
2.4
NE
7
2.5
ENE
8
2.4
ENE
8
2.5
ENE
8
2.3
ENE
8
Energy kJ
66
84
29
133
200
60
62
75
132
124
92
213
219
284
401
598
740
663
717
591
Nearest Offshore or Glassy
Rating
(10 max)
3
3
2
2
2
2
2
2
3
2
2
2
1
1
1
1
2
1
1
1
3
Distance (km)
15
36
36
37
38
36
15
37
36
36
37
16
36
36
37
156
181
153
181
153
36
Best forecast wave conditions in Oahu
Rating
(10 max)
3
3
3
2
2
2
2
2
3
2
2
2
2
2
1
3
Best forecast wave conditions in United States
Rating
(10 max)
3
3
4
2
2
4
2
2
3
3
2
3
3
3
2
2
2
3
2
2
4
Header Global
Rating
(10 max)
5
5
4
5
4
9
6
4
4
9
5
9
9
5
8
7
6
5
5
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)
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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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