Surf Forecasts:
How big are the waves at Goat Island/Mokuauia today (20 Sep):
- Morning surf: Morning surf (20 Sep, local time) - 6ft (1.9m), 8s period with E swell.
- Afternoon surf: Afternoon surf (20 Sep, local time) - 6.5ft (2.0m), 8s period with E swell.
- Evening surf: Evening surf (20 Sep, local time) - 6.5ft (2.0m), 8s period with E swell.
The current surf forecast for Goat Island/Mokuauia at 4AM is: 2.0m 8s primary swell from a East direction and 0.1m 12s secondary swell from a North direction (forecast issued at 01:00am September 20). An open ocean swell of 0.4m 16s is not directed at the surf break. The wind direction is predicted to be cross-shore.
| Time (HST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (20 Sep) | 6ft (1.9m) | 8s |
| Afternoon (20 Sep) | 6.5ft (2.0m) | 8s |
| Evening (20 Sep) | 6.5ft (2.0m) | 8s |
Table - waves today at Goat Island/Mokuauia. (Swell directed towards the surf break)
Short Range ForecastMostly dry. Warm (max 27°C on Sun morning, min 25°C on Sun night). Mainly fresh winds. | ||||||||||||||||||||||||
Sunday 20 | Monday 21 | Tuesday 22 | ||||||||||||||||||||||
2 AM | 5 AM | 8 AM | 11 AM | 2 PM | 5 PM | 8 PM | 11 PM | 2 AM | 5 AM | 8 AM | 11 AM | 2 PM | 5 PM | 8 PM | 11 PM | 2 AM | 5 AM | 8 AM | 11 AM | 2 PM | 5 PM | 8 PM | 11 PM | |
Swell Height Map |  |  |  |  |  |  |  |  |  | |||||||||||||||
Wave Height (m) Direction Period (s) | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | E 9 |
Wave Graph  | ||||||||||||||||||||||||
 kJ | 565 | 513 | 476 | 476 | 513 | 509 | 509 | 484 | 471 | 471 | 484 | 416 | 392 | 402 | 392 | 392 | 392 | 392 | 359 | 359 | 318 | 318 | 286 | 386 |
Wind (km/h) | ||||||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross | cross-off | cross | 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 | cross |
High Tide | 11:50AM0.65m | 10:49PM0.30m | 12:15PM0.68m | 11:28PM0.36m | 12:36PM0.69m | |||||||||||||||||||
Low Tide | 3:03AM0.12m | 7:14PM0.20m | 4:16AM0.10m | 6:52PM0.19m | 5:02AM0.07m | 6:52PM0.17m | ||||||||||||||||||
 | |  | | |  |  | | | | | | | | | | | | | | | | | | |
 | — | 6:18 | — | — | — | — | — | — | — | 6:20 | — | — | — | — | — | — | — | 6:20 | — | — | — | — | — | — |
 | — | — | — | — | — | 6:30 | — | — | — | — | — | — | — | 6:29 | — | — | — | — | — | — | — | 6:28 | — | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 26 | 26 | 26 | 27 | 27 | 26 | 25 | 25 | 25 | 25 | 25 | 26 | 26 | 26 | 25 | 25 | 25 | 25 | 25 | 26 | 27 | 26 | 26 | 26 |
Feels °C | 25 | 26 | 25 | 26 | 26 | 25 | 24 | 23 | 23 | 23 | 23 | 25 | 25 | 25 | 24 | 24 | 25 | 26 | 25 | 27 | 28 | 27 | 27 | 26 |
Swell 1 Height (m) Direction Period (s) | SSW 16 | SSW 16 | SSW 15 | SSW 15 | SSW 15 | SSW 15 | SSW 15 | SSW 15 | SSW 14 | SW 14 | SW 14 | SW 14 | SW 14 | SW 14 | SW 14 | SW 14 | NNW 13 | N 13 | NNW 12 | NNW 12 | NNW 12 | NNW 11 | NNW 11 | NNW 11 |
| kJ | 95 | 94 | 86 | 86 | 85 | 85 | 85 | 84 | 82 | 53 | 29 | 32 | 31 | 30 | 29 | 29 | 59 | 123 | 155 | 189 | 183 | 164 | 158 | 158 |
Swell 2 Height (m) Direction Period (s) | N 12 | N 12 | N 11 | N 11 | N 11 | N 11 | N 11 | N 11 | N 10 | N 10 | SSW 14 | S 14 | S 14 | S 13 | S 13 | N 14 | SW 13 | SSW 13 | SSW 13 | S 12 | SSW 13 | W 12 | SSW 17 | SSW 17 |
| kJ | 3 | 3 | 2 | 10 | 10 | 9 | 9 | 9 | 8 | 8 | 41 | 35 | 15 | 14 | 14 | 36 | 45 | 35 | 34 | 12 | 17 | 11 | 28 | 28 |
Swell 3 Height (m) Direction Period (s) | NW 10 | NW 9 | S 16 | W 13 | NW 9 | NW 9 | NW 9 | W 12 | W 12 | S 14 | N 10 | N 10 | W 11 | NNW 10 | W 11 | S 13 | W 13 | W 13 | S 13 | SSW 13 | W 12 | S 12 | W 12 | W 12 |
| kJ | 4 | 3 | 5 | 3 | 3 | 3 | 3 | 3 | 11 | 16 | 8 | 8 | 9 | 9 | 9 | 14 | 13 | 13 | 14 | 17 | 11 | 12 | 11 | 11 |
Wind waves Height (m) Direction Period (s) | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | E 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | E 9 |
| kJ | 565 | 513 | 476 | 476 | 513 | 509 | 509 | 484 | 471 | 471 | 484 | 416 | 392 | 402 | 392 | 392 | 392 | 392 | 359 | 359 | 318 | 318 | 286 | 386 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 36 | 16 | 37 | 36 | 36 | 36 | 36 | 36 | 36 | 36 | 36 | 36 | 36 | 36 | 36 | 37 | 36 | 36 | 15 | 36 | 15 | 15 | 15 | 15 |
Best forecast wave conditions in Oahu | ||||||||||||||||||||||||
Best forecast wave conditions in United States | ||||||||||||||||||||||||
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