Surf Forecasts:
How big are the waves at Ko Olina Resort today (21 Aug):
- Morning surf: Morning surf (21 Aug, local time) - 2.5ft (0.8m), 17s period with SSW swell.
- Afternoon surf: Afternoon surf (21 Aug, local time) - 2.5ft (0.7m), 16s period with SW swell.
- Evening surf: Evening surf (21 Aug, local time) - 2.5ft (0.8m), 16s period with SSW swell.
The current surf forecast for Ko Olina Resort at 2AM is: 0.8m 16s primary swell from a South-southwest direction (forecast issued at 07:00pm August 20). An open ocean swell of 0.8m 7s is not directed at the surf break. The wind direction is predicted to be glassy and the swell rating is 2.
| Time (HST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (21 Aug) | 2.5ft (0.8m) | 17s |
| Afternoon (21 Aug) | 2.5ft (0.7m) | 16s |
| Evening (21 Aug) | 2.5ft (0.8m) | 16s |
Table - waves today at Ko Olina Resort. (Swell directed towards the surf break)
Short Range ForecastMostly dry. Warm (max 28°C on Sat morning, min 25°C on Thu night). Winds increasing (calm on Fri afternoon, fresh winds from the ENE by Sat night). | |||||||||||||||||||
Thu 20 | Friday 21 | Saturday 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) | SW 17 | SW 16 | SW 16 | SSW 16 | SW 17 | SSW 17 | SSW 17 | SW 16 | SSW 16 | SSW 16 | SW 16 | SSW 16 | SSW 16 | SSW 16 | SSW 16 | SSW 16 | SSW 16 | SW 16 | SW 16 |
Wave Graph  | |||||||||||||||||||
 kJ | 302 | 278 | 271 | 347 | 414 | 368 | 364 | 278 | 326 | 322 | 367 | 322 | 326 | 326 | 326 | 318 | 314 | 248 | 248 |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | glassy | glassy | cross-off | glassy | cross-off | cross-off | cross | cross-on | glassy | off | off | off | off | off | off | off | off | off | off |
High Tide | 12:17PM0.58m | 11:07PM0.20m | 1:05PM0.61m | ||||||||||||||||
Low Tide | 3:07AM0.14m | 9:33PM0.20m | 4:33AM0.13m | 9:13PM0.18m | |||||||||||||||
 |  | | | | | |  | |  | | | | | | | | | | |
 | — | — | — | — | 6:11 | — | — | — | — | — | — | — | 6:13 | — | — | — | — | — | — |
 | 6:59 | — | — | — | — | — | — | — | 6:58 | — | — | — | — | — | — | — | 6:57 | — | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 27 | 26 | 26 | 26 | 25 | 26 | 26 | 26 | 27 | 27 | 27 | 26 | 26 | 26 | 28 | 27 | 27 | 26 | 26 |
Feels °C | 31 | 29 | 30 | 30 | 28 | 30 | 29 | 29 | 32 | 31 | 29 | 27 | 28 | 27 | 26 | 24 | 25 | 25 | 24 |
Swell 1 Height (m) Direction Period (s) | ENE 7 | SW 16 | SW 16 | SSW 16 | SW 17 | SSW 17 | SSW 17 | SW 16 | SSW 16 | SSW 16 | SW 16 | SSW 16 | SSW 16 | SSW 16 | E 7 | E 7 | E 7 | SW 16 | SW 16 |
| kJ | 70 | 278 | 271 | 347 | 414 | 368 | 364 | 278 | 326 | 322 | 367 | 322 | 326 | 326 | 62 | 74 | 97 | 248 | 248 |
Swell 2 Height (m) Direction Period (s) | SW 17 | E 8 | E 8 | NE 7 | NE 7 | W 11 | W 11 | W 10 | W 10 | W 10 | W 10 | E 7 | E 6 | E 6 | SSW 16 | SSW 16 | SSW 16 | WNW 10 | WNW 10 |
| kJ | 302 | 41 | 41 | 65 | 64 | 84 | 81 | 74 | 73 | 51 | 71 | 39 | 40 | 52 | 326 | 318 | 314 | 85 | 83 |
Swell 3 Height (m) Direction Period (s) | W 11 | N 7 | N 7 | W 9 | W 11 | E 7 | E 7 | N 7 | E 8 | E 8 | E 8 | W 10 | W 10 | W 10 | W 10 | W 10 | WNW 10 | WNW 14 | WNW 13 |
| kJ | 55 | 25 | 22 | 43 | 57 | 27 | 28 | 24 | 29 | 29 | 41 | 71 | 71 | 75 | 74 | 77 | 86 | 73 | 111 |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | NE 7 | — | ENE 7 | ENE 7 | — | ENE 7 | — | E 7 | E 7 |
| kJ | — | — | — | — | — | — | — | — | — | — | 49 | — | 64 | 62 | — | 68 | — | 127 | 181 |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 0 | 0 | 0 | 0 | 0 | 0 | 10 | 10 | 0 | 0 | 0 | 0 | 0 | 0 | 4 | 10 | 11 | 10 | 11 |
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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