Goat Island/Mokuauia surfForecast / HAW – Oahu / USA

information circle48hr Weather and Surf, issued 1 am Saturday 21 Mar 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
24.3° C
(Which is normal for this time of year)

How big are the waves at Goat Island/Mokuauia today?

The current surf forecast for Goat Island/Mokuauia at 4AM is: 1.6m 11s primary swell from a North direction and 0.4m 7s secondary swell from a East-southeast direction, 0.6m 5s secondary swell from a Southwest direction (forecast issued at 01:00am March 21). The wind direction is predicted to be cross-onshore.

Time (HST) & DateWave HeightWave Period
Morning (21 Mar)5.5ft (1.7m)11s
Afternoon (21 Mar)7ft (2.2m)12s
Evening (21 Mar)7.5ft (2.3m)11s

Table - waves today at Goat Island/Mokuauia. (Swell directed towards the surf break)


Updates in  hr  min  s Forecast update imminent
Saturday
21
Sunday
22
Monday
23
11PM2AM5AM8AM11AM2PM5PM8PM11PM2AM5AM8AM11AM2PM5PM8PM11PM2AM5AM8AM11AM2PM5PM8PM
Rating
(10 max)
1
1
2
0
1
1
2
3
2
2
2
2
3
2
2
3
3
3
2
2
1
0
0
0
Swell
Height Map
Wave Height (m) & direction (?)
1.5
N
1.6
N
1.6
N
1.7
N
1.8
N
2.1
N
2.3
N
2.3
NNE
1.4
N
1.4
N
1.2
N
1.3
NNE
1.1
N
1.1
N
1.2
N
0.9
NW
0.9
NW
0.9
NW
1.1
NNE
1.1
N
1.2
N
1.1
N
0.9
NNE
0.9
NNE
Period(s) (?)111111101212111111111110111111141413910101099
Wave
Graph
(?)Metric surfscale
Energy kJ (?)507566573621879120813651230465448327308277277317288264257217228284233133121
Wind
(km/h)
10
S
10
S
10
S
15
SSW
10
SSW
15
SW
10
WSW
5
W
10
W
5
WSW
5
WSW
10
WSW
5
NW
10
N
5
NE
10
NNE
10
NE
10
NE
15
NNE
20
NE
25
NE
25
NE
25
NE
25
NE
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
onononcross-
on
oncross-
on
cross-
on
crosscrosscross-
on
cross-
on
crosscross-
off
offglasscross-
off
cross-
off
cross-
off
cross-
off
cross-
off
cross-
off
cross-
off
cross-
off
cross-
off
High Tide
/ height (m)
2:49AM
0.47
4:35PM
0.61
3:01AM
0.42
5:36PM
0.60
2:59AM
0.37
6:58PM
0.57
Low Tide
/ height (m)
9:25PM
0.12
9:21AM
-0.10
10:17PM
0.18
9:53AM
-0.10
11:26PM
0.24
10:30AM
-0.09
Saturday
21
Sunday
22
Monday
23
Sunrise---6:35-------6:33-------6:33----
Sunset------6:43-------6:43-------6:43-
cloud
cloud
cloud
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
part cloud
thunderstorm
part cloud
Rain (mm)
---333233453121111211-1-
Temp. °C242424242525252423232323242323232222222222232222
Feels °C (?)272627252726262725262525262525252323232220212020
  • 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

FREE! Surf-Forecast.com widget for your website

The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Goat Island/Mokuauia surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.


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