
Surf Forecasts:
How big are the waves at Ko Olina Resort today (21 Sep):
- Morning surf: Morning surf (21 Sep, local time) - 3.5ft (1.0m), 14s period with S swell.
- Afternoon surf: Afternoon surf (21 Sep, local time) - 3ft (0.9m), 14s period with SSW swell.
- Evening surf: Evening surf (21 Sep, local time) - 3ft (0.9m), 13s period with SSW swell.
The current surf forecast for Ko Olina Resort at 10AM is: 1.0m 14s primary swell from a South direction (forecast issued at 07:00am September 21). An open ocean swell of 1.6m 8s is not directed at the surf break. The wind direction is predicted to be offshore.
| Time (HST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (21 Sep) | 3.5ft (1.0m) | 14s |
| Afternoon (21 Sep) | 3ft (0.9m) | 14s |
| Evening (21 Sep) | 3ft (0.9m) | 13s |
Table - waves today at Ko Olina Resort. (Swell directed towards the surf break)
Short Range ForecastMostly dry. Warm (max 28°C on Mon afternoon, min 25°C on Mon morning). Mainly fresh winds. | |||||||||||||||||||||||
Monday 21 | Tuesday 22 | Wednesday 23 | |||||||||||||||||||||
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) | S 14 | S 14 | S 14 | SSW 14 | SSW 14 | SSW 13 | S 13 | SSW 13 | SSW 13 | SSW 13 | SSW 13 | S 13 | S 12 | S 12 | S 12 | S 12 | S 12 | S 13 | S 12 | S 12 | S 12 | SSW 16 | SSW 16 |
Wave Graph | |||||||||||||||||||||||
411 | 405 | 394 | 313 | 304 | 295 | 219 | 229 | 229 | 225 | 222 | 202 | 146 | 144 | 144 | 106 | 112 | 115 | 110 | 108 | 108 | 166 | 164 | |
Wind (km/h) | |||||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | off | off | off | off | off | off | off | off | off | off | off | off | off | off | off | off | off | off | off | off | off | off | off |
High Tide | 12:57PM0.60m | 1:23AM0.29m | 1:30PM0.62m | 1:55AM0.35m | 2:01PM0.61m | ||||||||||||||||||
Low Tide | 5:19AM0.17m | 8:19PM0.15m | 6:22AM0.15m | 8:31PM0.13m | 7:13AM0.14m | 8:45PM0.11m | |||||||||||||||||
6:20 | — | — | — | — | — | — | — | 6:20 | — | — | — | — | — | — | — | 6:20 | — | — | — | — | — | — | |
— | — | — | — | 6:29 | — | — | — | — | — | — | — | 6:28 | — | — | — | — | — | — | — | 6:27 | — | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 25 | 25 | 27 | 28 | 27 | 26 | 26 | 26 | 26 | 26 | 28 | 28 | 27 | 26 | 26 | 26 | 26 | 26 | 28 | 28 | 27 | 26 | 26 |
Feels °C | 24 | 23 | 25 | 27 | 25 | 26 | 26 | 26 | 26 | 27 | 29 | 26 | 25 | 25 | 25 | 25 | 25 | 25 | 27 | 26 | 25 | 25 | 25 |
Swell 1 Height (m) Direction Period (s) | S 14 | E 8 | E 8 | E 8 | SSW 14 | E 8 | S 13 | E 8 | E 8 | E 8 | E 8 | E 8 | NNW 11 | NNW 11 | E 9 | E 9 | E 9 | E 10 | E 10 | E 10 | E 10 | NNW 10 | E 9 |
411 | 299 | 270 | 280 | 304 | 230 | 219 | 228 | 228 | 228 | 195 | 200 | 173 | 161 | 297 | 306 | 327 | 408 | 417 | 417 | 414 | 75 | 339 | |
Swell 2 Height (m) Direction Period (s) | SW 15 | S 14 | S 14 | SSW 14 | W 11 | SSW 13 | N 5 | SSW 13 | SSW 13 | SSW 13 | SSW 13 | S 13 | S 12 | S 12 | NNW 11 | NNW 11 | NNW 10 | NNW 10 | NNW 10 | NNW 10 | NNW 10 | SSW 16 | NNW 10 |
33 | 405 | 394 | 313 | 9 | 295 | 12 | 229 | 229 | 225 | 222 | 202 | 146 | 144 | 158 | 121 | 112 | 108 | 106 | 106 | 102 | 166 | 75 | |
Swell 3 Height (m) Direction Period (s) | NNW 10 | SW 15 | SSW 15 | SW 14 | NNW 10 | W 11 | SW 14 | N 14 | N 13 | N 12 | NNW 12 | NNW 12 | SW 19 | SW 17 | S 12 | S 12 | S 12 | S 13 | S 12 | S 12 | S 12 | S 12 | SSW 16 |
11 | 33 | 21 | 51 | 9 | 10 | 52 | 33 | 87 | 112 | 150 | 147 | 91 | 72 | 144 | 106 | 112 | 115 | 110 | 108 | 108 | 108 | 164 | |
Wind waves Height (m) Direction Period (s) | E 8 | — | — | — | E 8 | N 5 | E 8 | — | — | — | — | — | ENE 8 | E 8 | — | — | — | — | E 10 | — | — | E 10 | — |
378 | — | — | — | 264 | 8 | 235 | — | — | — | — | — | 240 | 270 | — | — | — | — | 541 | — | — | 354 | — | |
Nearest Offshore or Glassy | |||||||||||||||||||||||
Distance (km) | 10 | 10 | 3 | 3 | 0 | 0 | 153 | 0 | 0 | 0 | 0 | 0 | 0 | 10 | 10 | 2 | 2 | 0 | 0 | 0 | 3 | 5 | 14 |
Best forecast wave conditions in Oahu | |||||||||||||||||||||||
Best forecast wave conditions in United States | |||||||||||||||||||||||
Header Global | |||||||||||||||||||||||
- Map Icons:
Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)
Wind Speed (km/h)












