
Surf Forecasts:
Goat Island/Mokuauia surf forecast from 14 Oct 2026:
- Most powerful swell: Monday 19 Oct, 11AM (local time) - 8ft (2.5m), 8s period, ENE swell with 889 kJ wave energy.
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 2.5m 8s and forecast to arrive on Monday (Oct 19) 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 1.6m 6s period and expected on Thursday (Oct 15) at 8PM.
| Wave Type | Time (HST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 11AM (Mon 19th Oct) | 8ft (2.5m) 8s |
Table - best surf conditions forecast for Goat Island/Mokuauia over the next 16 days.
Short Range ForecastLight rain (total 2mm), mostly falling on Wed night. Warm (max 26°C on Wed afternoon, min 24°C on Wed morning). Mainly fresh winds. | Days 4-6 Weather SummarySome drizzle, heaviest during Sat night. Warm (max 25°C on Sat morning, min 24°C on Sat morning). Mainly fresh winds. | ||||||||||||||||||||
Wednesday 14 | Thursday 15 | Friday 16 | Saturday 17 | Sunday 18 | Monday 19 | Tuesday 20 | |||||||||||||||
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) | NW 13 | NW 13 | NW 12 | NW 12 | NNW 11 | NNW 11 | NNW 13 | NNW 13 | NNW 11 | NNW 11 | NNW 11 | ENE 7 | ENE 7 | ENE 7 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | E 8 | ENE 8 | E 8 |
Wave Graph | |||||||||||||||||||||
623 | 604 | 428 | 319 | 223 | 190 | 461 | 498 | 394 | 350 | 286 | 303 | 390 | 498 | 804 | 889 | 713 | 569 | 504 | 561 | 459 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-off | cross | cross | cross-off | cross-off | cross-off | cross-off | cross | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross | cross | cross | cross |
High Tide | 1:41PM0.41m | 5:40AM0.62m | 7:05AM0.59m | 8:55AM0.58m | 10:04AM0.60m | 9:43PM0.23m | 10:45AM0.62m | 10:53PM0.30m | 11:12AM0.64m | 11:28PM0.38m | |||||||||||
Low Tide | 11:09AM0.30m | 9:06PM0.02m | 9:34PM0.05m | 10:06PM0.09m | 11:04PM0.13m | 7:50PM0.17m | 1:39AM0.16m | 6:11PM0.17m | 3:21AM0.15m | 5:54PM0.15m | 4:24AM0.15m | ||||||||||
6:26 | — | — | 6:26 | — | — | 6:26 | — | — | 6:28 | — | — | 6:28 | — | — | 6:28 | — | — | 6:28 | — | — | |
— | 6:07 | — | — | 6:07 | — | — | 6:06 | — | — | 6:05 | — | — | 6:04 | — | — | 6:02 | — | — | 6:02 | — | |
mm | — | — | 1 | — | — | — | — | — | 1 | — | — | 1 | — | — | — | — | — | — | 2 | 1 | 2 |
Temp °C | 25 | 26 | 25 | 26 | 26 | 25 | 25 | 26 | 25 | 25 | 25 | 24 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 24 |
Feels °C | 25 | 26 | 25 | 25 | 25 | 23 | 23 | 23 | 23 | 22 | 22 | 21 | 22 | 22 | 22 | 22 | 22 | 22 | 22 | 22 | 21 |
Swell 1 Height (m) Direction Period (s) | NW 13 | NW 13 | NW 12 | NW 12 | NNW 11 | NNW 11 | NNW 13 | NNW 13 | NNW 11 | NNW 11 | NNW 11 | NNW 10 | NNW 12 | N 12 | N 11 | N 11 | N 11 | N 11 | N 10 | N 10 | N 10 |
623 | 604 | 428 | 319 | 223 | 190 | 461 | 498 | 394 | 350 | 286 | 195 | 361 | 279 | 143 | 160 | 121 | 63 | 56 | 32 | 31 | |
Swell 2 Height (m) Direction Period (s) | ENE 9 | ENE 9 | SSW 15 | NE 10 | SSW 17 | E 13 | SW 16 | N 7 | NW 18 | WNW 17 | WNW 16 | N 13 | NW 14 | NW 13 | NW 12 | NW 12 | NW 11 | NW 10 | NW 10 | NW 10 | NW 9 |
127 | 121 | 44 | 35 | 30 | 31 | 40 | 17 | 79 | 119 | 173 | 128 | 160 | 142 | 93 | 87 | 76 | 39 | 25 | 15 | 13 | |
Swell 3 Height (m) Direction Period (s) | SW 17 | SW 18 | SW 19 | SSW 18 | SSW 14 | SSW 17 | E 12 | E 12 | E 12 | E 11 | E 11 | WNW 15 | SW 14 | SSW 17 | NNW 13 | SSW 17 | SSW 15 | SSW 16 | SSW 16 | SSW 14 | SSW 16 |
76 | 78 | 15 | 31 | 20 | 29 | 12 | 25 | 25 | 10 | 10 | 154 | 8 | 29 | 55 | 28 | 21 | 24 | 25 | 20 | 24 | |
Wind waves Height (m) Direction Period (s) | — | NE 3 | ENE 8 | ENE 5 | ENE 6 | ENE 6 | ENE 6 | ENE 6 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | E 8 | ENE 8 | E 8 |
— | 5 | 202 | 81 | 141 | 167 | 142 | 203 | 326 | 262 | 263 | 303 | 390 | 498 | 804 | 889 | 713 | 569 | 504 | 561 | 459 | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 15 | 36 | 15 | 15 | 36 | 36 | 36 | 37 | 36 | 36 | 153 | 36 | 37 | 37 | 37 | 37 | 37 | 36 | 36 | 36 | 37 |
Best forecast wave conditions in Oahu | |||||||||||||||||||||
Best forecast wave conditions in United States | |||||||||||||||||||||
Header Global | |||||||||||||||||||||
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Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
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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.










