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Goat Island/Mokuauia Surf Forecast
/ HAW – Oahu (122 breaks) / Hawaii (267 breaks) /
Surf Forecasts:
Goat Island/Mokuauia surfForecast / HAW – Oahu / USA
16 Day Weather and Surf, issued 1 am Thursday 28 May 2026 HSTForecast 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
24.9° C
(Which is normal for this time of year)Goat Island/Mokuauia surf forecast from 28 May 2026:
- Best quality surf: Sunday 31 May, 8PM (local time) - 2ft (0.6m), 11s period, NNW swell with cross-offshore winds.
- Most powerful swell: Thursday 28 May, 5AM (local time) - 3.5ft (1.0m), 13s period, NW swell with 315 kJ wave energy.
- Next surfable swell (1★+): Sunday 31 May, 2PM (local time) - 2.5ft (0.7m), 8s period with E swell.
Best Forecast Surf Conditions for Goat Island/Mokuauia this week:
The surf forecast for Goat Island/Mokuauia over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Sunday (May 31) at 2PM. The primary swell is predicted to be 0.7m and 8s period with a secondary swell of 0.7m and 7s. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Goat Island/Mokuauia in the next 16 days are 1.0m 13s and forecast to arrive on Thursday (May 28) at 5AM. 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 Tuesday (Jun 02) at 8PM.
| Wave Type | Time (HST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 2PM (Sun 31st May) | 2.5ft (0.7m) 8s |
| Best Surf | 8PM (Sun 31st May) | 2ft (0.6m) 11s |
| Most Powerful | 5AM (Thu 28th May) | 3.5ft (1.0m) 13s |
Table - best surf conditions forecast for Goat Island/Mokuauia over the next 16 days.
Updates in hr min s Forecast update imminent
Short Range ForecastLight rain (total 4mm), mostly falling on Thu morning. Warm (max 24°C on Thu afternoon, min 22°C on Thu night). Wind will be generally light. | Days 4-6 Weather SummarySome drizzle, heaviest during Sun night. Warm (max 24°C on Sun morning, min 22°C on Mon night). Wind will be generally light. | ||||||||||||||||||||
Thursday 28 | Friday 29 | Saturday 30 | Sunday 31 | Monday 1 | Tuesday 2 | Wednesday 3 | |||||||||||||||
AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | |
Swell Height Map |  |  |  |  |  |  |  | ||||||||||||||
NW 12 | NW 12 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | NE 8 | ESE 8 | NE 7 | NNW 10 | E 8 | ENE 7 | NNW 9 | ENE 8 | NNW 11 | NNW 10 | E 7 | E 7 | E 7 | |
281 | 240 | 210 | 227 | 227 | 265 | 172 | 147 | 78 | 62 | 54 | 78 | 76 | 66 | 46 | 123 | 198 | 173 | 205 | 240 | 236 | |
Wind (km/h) | |||||||||||||||||||||
cross-off | cross | cross-off | cross | cross-off | cross | cross-off | cross | cross | cross | cross-off | cross | cross-off | cross-off | cross | cross-off | cross-off | cross | cross | cross | cross | |
High Tide | 1:45PM0.67m | 11:11PM0.36m | 2:14PM0.69m | 11:37PM0.34m | 2:45PM0.70m | 00:06AM0.33m | 3:18PM0.69m | 00:36AM0.31m | 3:54PM0.68m | 1:04AM0.30m | 4:33PM0.67m | 1:26AM0.29m | 5:14PM0.65m | ||||||||
Low Tide | 7:48PM0.24m | 6:08AM-0.09m | 8:31PM0.23m | 6:35AM-0.10m | 9:11PM0.22m | 7:06AM-0.10m | 9:54PM0.22m | 7:39AM-0.09m | 10:43PM0.21m | 8:12AM-0.08m | 11:42PM0.21m | 8:46AM-0.06m | |||||||||
 | |  |  | |  | | |  | | | | | | | | | | | | | |
 | 5:48 | — | — | 5:48 | — | — | 5:48 | — | — | 5:48 | — | — | 5:48 | — | — | 5:48 | — | — | 5:48 | — | — |
 | — | 7:07 | — | — | 7:08 | — | — | 7:08 | — | — | 7:09 | — | — | 7:09 | — | — | 7:10 | — | — | 7:10 | — |
1 | 1 | — | — | — | — | — | — | 2 | — | — | 1 | — | — | — | — | — | — | — | — | — | |
Temp °C | 23 | 24 | 23 | 23 | 24 | 23 | 24 | 24 | 23 | 24 | 24 | 24 | 24 | 24 | 23 | 24 | 24 | 24 | 25 | 25 | 24 |
21 | 22 | 20 | 21 | 22 | 21 | 23 | 23 | 23 | 24 | 25 | 25 | 25 | 24 | 23 | 24 | 23 | 24 | 25 | 24 | 23 | |
Swell 1 Height (m) Direction Period (s) | NW 12 | NW 12 | NW 11 | NW 11 | NW 11 | NNW 11 | NNW 10 | NNW 10 | NE 8 | NE 7 | E 8 | NNW 10 | NNW 10 | NNW 9 | NNW 9 | N 12 | NNW 11 | NNW 10 | NNW 9 | NNW 9 | NNW 12 |
 kJ | 281 | 240 | 185 | 130 | 126 | 101 | 86 | 75 | 67 | 54 | 45 | 78 | 75 | 66 | 46 | 104 | 198 | 173 | 121 | 70 | 236 |
Swell 2 Height (m) Direction Period (s) | N 12 | N 11 | N 11 | N 10 | N 10 | NNE 11 | NNE 10 | NNE 10 | NNW 10 | ESE 8 | N 9 | E 8 | NE 7 | E 8 | E 8 | NNW 9 | ESE 8 | SSW 15 | S 17 | N 11 | SSW 16 |
| kJ | 73 | 35 | 57 | 48 | 47 | 45 | 32 | 18 | 52 | 62 | 42 | 31 | 24 | 33 | 33 | 26 | 20 | 42 | 140 | 89 | 82 |
Swell 3 Height (m) Direction Period (s) | SW 16 | NNE 13 | NNE 13 | NNE 12 | NNE 12 | SSW 18 | SSW 17 | SSW 16 | N 8 | NNW 9 | NNE 8 | NNE 8 | NNE 7 | SSW 18 | SSW 16 | SSW 16 | SSW 16 | SSW 18 | N 12 | S 16 | W 13 |
| kJ | 10 | 33 | 33 | 28 | 27 | 63 | 57 | 52 | 21 | 48 | 22 | 20 | 10 | 61 | 53 | 86 | 84 | 61 | 25 | 129 | 3 |
Wind waves Height (m) Direction Period (s) | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | E 8 | — | NE 7 | ENE 7 | E 8 | ENE 7 | ENE 5 | ENE 8 | ENE 6 | ENE 6 | E 7 | E 7 | E 7 |
| kJ | 244 | 186 | 210 | 227 | 227 | 265 | 172 | 147 | 78 | — | 54 | 66 | 76 | 54 | 46 | 123 | 81 | 160 | 205 | 240 | 222 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 16 | 15 | 37 | 15 | 16 | 16 | 15 | 15 | 15 | 11 | 11 | 15 | 13 | 0 | 0 | 0 | 37 | 0 | 13 | 15 | 15 |
Best forecast wave conditions in Oahu | |||||||||||||||||||||
Best forecast wave conditions in United States | |||||||||||||||||||||
Header Global | |||||||||||||||||||||
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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.
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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