Surf Forecasts:
Goat Island/Mokuauia surf forecast from 25 Jul 2026:
- Best quality surf: Wednesday 29 Jul, 2AM (local time) - 11ft (3.5m), 12s period, ENE swell with offshore winds.
- Most powerful swell: Tuesday 28 Jul, 11PM (local time) - 10ft (3.0m), 13s period, ENE swell with 3,263 kJ wave energy.
- Next surfable swell (1★+): Wednesday 29 Jul, 2AM (local time) - 11ft (3.5m), 12s period with ENE 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 Wednesday (Jul 29) at 2AM. The primary swell is predicted to be 3.5m and 12s period. The wind is predicted to be offshore as the swell arrives.
The most powerful waves expected at Goat Island/Mokuauia in the next 16 days are 3.0m 13s and forecast to arrive on Tuesday (Jul 28) 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 16s period and expected on Saturday (Jul 25) at 2PM.
| Wave Type | Time (HST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 2AM (Wed 29th Jul) | 11ft (3.5m) 12s |
| Best Surf | 2AM (Wed 29th Jul) | 11ft (3.5m) 12s |
| Most Powerful | 11PM (Tue 28th Jul) | 10ft (3.0m) 13s |
Table - best surf conditions forecast for Goat Island/Mokuauia over the next 16 days.
Short Range ForecastLight rain (total 3mm), mostly falling on Mon night. Warm (max 25°C on Sat morning, min 24°C on Sat night). Mainly fresh winds. | Days 4-6 Weather SummaryModerate rain (total 16mm), heaviest on Wed afternoon. Warm (max 28°C on Wed afternoon, min 24°C on Tue night). Winds increasing (light winds from the WSW on Wed morning, fresh winds from the E by Thu night). | ||||||||||||||||||||
Saturday 25 | Sunday 26 | Monday 27 | Tuesday 28 | Wednesday 29 | Thursday 30 | Friday 31 | |||||||||||||||
AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | |
Swell Height Map |  |  |  |  |  |  |  | ||||||||||||||
Wave Height (m) Direction Period (s) | ENE 8 | ENE 8 | ENE 8 | ENE 8 | E 15 | E 15 | E 14 | E 13 | ENE 13 | E 13 | E 13 | ENE 12 | ENE 11 | NE 10 | ENE 8 | E 8 | E 8 | E 7 | E 8 | E 8 | E 8 |
Wave Graph  | |||||||||||||||||||||
 kJ | 506 | 531 | 480 | 403 | 418 | 706 | 613 | 670 | 2084 | 1510 | 1971 | 3106 | 2253 | 1254 | 562 | 464 | 397 | 465 | 510 | 558 | 650 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | off | cross-on | on | cross-on | cross | cross | cross | cross-off | cross-off | cross-off |
High Tide | 1:25PM0.70m | 10:19PM0.32m | 1:53PM0.72m | 11:31PM0.34m | 2:20PM0.73m | 00:17AM0.36m | 2:47PM0.75m | 00:59AM0.37m | 3:12PM0.75m | 1:40AM0.38m | 3:35PM0.75m | 2:25AM0.40m | 3:55PM0.73m | 3:14AM0.41m | |||||||
Low Tide | 8:49PM0.24m | 5:35AM-0.02m | 8:33PM0.23m | 6:14AM-0.04m | 8:45PM0.23m | 6:49AM-0.05m | 9:05PM0.21m | 7:22AM-0.05m | 9:29PM0.20m | 7:55AM-0.04m | 9:54PM0.18m | 8:27AM-0.01m | 10:20PM0.16m | ||||||||
 |  |  | | | | | |  |  | |  | | |  | | | | | | | |
 | 6:01 | — | — | 6:01 | — | — | 6:01 | — | — | 6:01 | — | — | 6:03 | — | — | 6:03 | — | — | 6:03 | — | — |
 | — | 7:14 | — | — | 7:14 | — | — | 7:13 | — | — | 7:13 | — | — | 7:12 | — | — | 7:12 | — | — | 7:10 | — |
mm | — | — | — | — | — | — | — | — | 3 | 2 | 1 | — | 2 | 8 | 3 | — | — | — | — | — | — |
Temp °C | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 26 | 25 | 26 | 28 | 27 | 26 | 27 | 25 | 26 | 26 | 25 |
Feels °C | 23 | 23 | 23 | 22 | 23 | 23 | 24 | 24 | 24 | 26 | 26 | 25 | 29 | 30 | 29 | 26 | 27 | 24 | 24 | 24 | 23 |
Swell 1 Height (m) Direction Period (s) | E 14 | SSW 16 | E 15 | E 15 | E 15 | E 15 | E 14 | E 13 | SSW 14 | E 13 | E 13 | ENE 12 | ENE 11 | NE 10 | SSW 13 | SW 18 | SW 18 | E 16 | E 15 | E 15 | E 14 |
| kJ | 62 | 86 | 72 | 275 | 418 | 706 | 613 | 670 | 40 | 1510 | 1971 | 3106 | 2253 | 1254 | 35 | 49 | 79 | 82 | 161 | 213 | 202 |
Swell 2 Height (m) Direction Period (s) | SSW 16 | E 13 | E 12 | SSW 16 | SSW 16 | SSW 16 | SSW 15 | SSW 14 | — | SSW 14 | SSW 13 | SSW 14 | SSW 14 | SSW 14 | SSW 19 | SSW 13 | E 16 | SW 16 | SW 16 | SW 16 | SW 15 |
| kJ | 49 | 55 | 26 | 102 | 84 | 49 | 42 | 41 | — | 36 | 35 | 36 | 40 | 38 | 37 | 34 | 47 | 68 | 65 | 61 | 56 |
Swell 3 Height (m) Direction Period (s) | SSW 19 | E 17 | SSW 18 | S 12 | S 11 | — | S 10 | S 11 | — | — | — | — | SW 21 | SW 20 | E 19 | N 10 | N 9 | N 9 | N 8 | N 8 | N 8 |
| kJ | 74 | 23 | 60 | 3 | 9 | — | 2 | 2 | — | — | — | — | 17 | 15 | 7 | 7 | 15 | 14 | 12 | 12 | 11 |
Wind waves Height (m) Direction Period (s) | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 7 | NE 7 | NE 7 | ENE 13 | NNE 7 | NNE 9 | — | — | — | ENE 8 | E 8 | E 8 | E 7 | E 8 | E 8 | E 8 |
| kJ | 506 | 531 | 480 | 403 | 372 | 320 | 309 | 262 | 2084 | 147 | 264 | — | — | — | 562 | 464 | 397 | 465 | 510 | 558 | 650 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 36 | 37 | 36 | 36 | 36 | 36 | 36 | 39 | 36 | 37 | 39 | 0 | 2 | 2 | 13 | 15 | 36 | 36 | 36 | 153 | 36 |
Best forecast wave conditions in Oahu | |||||||||||||||||||||
Best forecast wave conditions in United States | |||||||||||||||||||||
Header Global | |||||||||||||||||||||
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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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