Surf Forecasts:
How big are the waves at Ehukai/Gums today (21 Sep):
- Morning surf: Morning surf (21 Sep, local time) - 1ft (0.3m), 14s period with SW swell.
- Afternoon surf: Afternoon surf (21 Sep, local time) - 1ft (0.3m), 14s period with SW swell.
- Evening surf: Evening surf (21 Sep, local time) - 1ft (0.3m), 14s period with SW swell.
The current surf forecast for Ehukai/Gums at 12AM is: 0.2m 12s primary swell from a West direction and 0.2m 10s secondary swell from a North direction (forecast issued at 07:00pm September 20). An open ocean swell of 0.4m 15s is not directed at the surf break, a second open ocean swell of 2.1m 8s is not directed at the surf break. The wind direction is predicted to be cross-offshore.
| Time (HST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (21 Sep) | 1ft (0.3m) | 14s |
| Afternoon (21 Sep) | 1ft (0.3m) | 14s |
| Evening (21 Sep) | 1ft (0.3m) | 14s |
Table - waves today at Ehukai/Gums. (Swell directed towards the surf break)
Short Range ForecastMostly dry. Warm (max 27°C on Mon afternoon, min 24°C on Sun night). Mainly fresh winds. | |||||||||||||||||||
Sun 20 | Monday 21 | Tuesday 22 | |||||||||||||||||
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) | N 11 | N 11 | N 11 | W 12 | N 10 | SW 14 | SW 14 | SW 14 | SW 14 | SW 14 | SW 14 | N 13 | N 13 | NNW 12 | NNW 12 | NNW 12 | NNW 11 | NNW 11 | NNW 11 |
Wave Graph  | |||||||||||||||||||
 kJ | 9 | 9 | 9 | 11 | 8 | 29 | 32 | 31 | 30 | 29 | 36 | 55 | 123 | 155 | 189 | 183 | 164 | 161 | 158 |
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 | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off |
High Tide | 11:14PM0.30m | 12:26PM0.67m | 11:59PM0.35m | 12:49PM0.68m | |||||||||||||||
Low Tide | 8:12PM0.28m | 4:29AM0.20m | 7:47PM0.27m | 5:25AM0.18m | 7:43PM0.25m | ||||||||||||||
 |  | |  | |  | | | | | | | | | | | | | | |
 | — | — | — | — | 6:20 | — | — | — | — | — | — | — | 6:20 | — | — | — | — | — | — |
 | 6:30 | — | — | — | — | — | — | — | 6:29 | — | — | — | — | — | — | — | 6:28 | — | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 26 | 25 | 25 | 25 | 24 | 25 | 26 | 27 | 26 | 26 | 26 | 26 | 26 | 26 | 27 | 27 | 27 | 26 | 26 |
Feels °C | 25 | 24 | 24 | 24 | 23 | 24 | 25 | 26 | 26 | 26 | 26 | 26 | 27 | 27 | 28 | 27 | 28 | 27 | 27 |
Swell 1 Height (m) Direction Period (s) | SSW 15 | SSW 15 | SSW 15 | SSW 14 | SW 14 | SW 14 | SW 14 | SW 14 | SW 14 | SW 14 | SW 14 | N 13 | N 13 | NNW 12 | NNW 12 | NNW 12 | NNW 11 | NNW 11 | NNW 11 |
| kJ | 84 | 85 | 84 | 82 | 54 | 29 | 32 | 31 | 30 | 29 | 29 | 55 | 123 | 155 | 189 | 183 | 164 | 161 | 158 |
Swell 2 Height (m) Direction Period (s) | N 11 | N 11 | N 11 | N 10 | S 14 | SSW 14 | S 14 | S 14 | S 13 | S 13 | N 14 | SW 13 | SW 13 | SSW 13 | S 12 | SSW 13 | W 12 | SSW 17 | SSW 17 |
| kJ | 9 | 9 | 9 | 8 | 15 | 41 | 35 | 15 | 14 | 14 | 36 | 45 | 45 | 34 | 12 | 17 | 11 | 28 | 28 |
Swell 3 Height (m) Direction Period (s) | NW 9 | NW 9 | W 12 | W 12 | N 10 | N 10 | N 10 | W 11 | NNW 10 | NNW 12 | S 13 | W 13 | W 13 | W 13 | SSW 13 | W 12 | SSW 13 | W 12 | W 12 |
| kJ | 3 | 3 | 3 | 11 | 8 | 8 | 8 | 9 | 9 | 14 | 14 | 13 | 13 | 13 | 17 | 11 | 17 | 11 | 11 |
Wind waves Height (m) Direction Period (s) | ENE 8 | E 8 | E 7 | E 8 | E 8 | E 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | E 8 | E 8 | E 8 | E 9 |
| kJ | 473 | 509 | 491 | 518 | 531 | 484 | 461 | 392 | 414 | 414 | 427 | 427 | 392 | 402 | 359 | 349 | 393 | 432 | 554 |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 22 | 22 | 24 | 22 | 22 | 22 | 22 | 26 | 26 | 22 | 22 | 1 | 22 | 1 | 1 | 1 | 1 | 1 | 1 |
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)
Ocean Swells (m)- Wind Speed (km/h)
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