Surf Forecasts:
How big are the waves at Keaulanas today (13 Aug):
- Morning surf: Morning surf (13 Aug, local time) - 4.5ft (1.4m), 16s period with S swell.
- Afternoon surf: Afternoon surf (13 Aug, local time) - 4.5ft (1.3m), 16s period with S swell.
- Evening surf: Evening surf (13 Aug, local time) - 4ft (1.2m), 15s period with S swell.
The current surf forecast for Keaulanas at 9PM is: 1.2m 15s primary swell from a South direction and 0.2m 12s secondary swell from a West direction (forecast issued at 01:00pm August 13). An open ocean swell of 1.0m 6s is not directed at the surf break. The wind direction is predicted to be offshore and the swell rating is 3.
| Time (HST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (13 Aug) | 4.5ft (1.4m) | 16s |
| Afternoon (13 Aug) | 4.5ft (1.3m) | 16s |
| Evening (13 Aug) | 4ft (1.2m) | 15s |
Table - waves today at Keaulanas. (Swell directed towards the surf break)
Short Range ForecastHeavy rain (total 26mm), heaviest during Sun morning. Warm (max 29°C on Fri afternoon, min 25°C on Thu night). Winds increasing (moderate winds from the ENE on Thu night, near gales from the ENE by Sat night). | |||||||||||||||||||||
Thu 13 | Friday 14 | Saturday 15 | |||||||||||||||||||
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 16 | S 16 | S 15 | S 15 | S 15 | S 15 | S 15 | S 15 | S 14 | S 14 | S 14 | S 14 | S 14 | S 14 | S 13 | S 13 | S 13 | S 13 | S 13 | S 13 | S 13 |
Wave Graph  | |||||||||||||||||||||
 kJ | 868 | 836 | 773 | 644 | 636 | 636 | 636 | 619 | 503 | 496 | 411 | 405 | 399 | 311 | 289 | 284 | 222 | 219 | 168 | 168 | 222 |
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 |
High Tide | 4:33PM0.71m | 4:57AM0.42m | 5:03PM0.63m | 5:45AM0.46m | 5:29PM0.55m | ||||||||||||||||
Low Tide | 9:38AM0.06m | 11:20PM0.09m | 10:27AM0.12m | 11:44PM0.09m | 11:19AM0.18m | ||||||||||||||||
 | | |  | | | | | | | | |  | | |  | | | | |  | |
 | — | — | — | — | — | — | 6:09 | — | — | — | — | — | — | — | 6:09 | — | — | — | — | — | — |
 | — | — | 7:04 | — | — | — | — | — | — | — | 7:02 | — | — | — | — | — | — | — | 7:01 | — | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 28 | 28 | 27 | 25 | 26 | 25 | 25 | 25 | 27 | 29 | 27 | 26 | 26 | 25 | 26 | 26 | 27 | 28 | 27 | 26 | 26 |
Feels °C | 26 | 25 | 25 | 24 | 25 | 24 | 24 | 23 | 24 | 27 | 25 | 25 | 25 | 23 | 25 | 24 | 23 | 24 | 23 | 22 | 23 |
Swell 1 Height (m) Direction Period (s) | S 16 | S 16 | S 15 | S 15 | S 15 | S 15 | S 15 | S 15 | S 14 | S 14 | S 14 | S 14 | S 14 | S 14 | S 13 | S 13 | S 13 | S 13 | S 13 | S 13 | S 13 |
| kJ | 868 | 836 | 773 | 644 | 636 | 636 | 636 | 619 | 503 | 496 | 411 | 405 | 399 | 311 | 289 | 284 | 222 | 219 | 168 | 168 | 222 |
Swell 2 Height (m) Direction Period (s) | W 12 | W 12 | W 12 | W 12 | W 11 | W 11 | ESE 8 | W 12 | ESE 8 | ESE 8 | NNW 8 | NNW 8 | ESE 11 | ESE 11 | NNW 8 | NNW 8 | W 11 | S 16 | NNW 8 | S 17 | S 18 |
| kJ | 25 | 25 | 11 | 11 | 10 | 10 | 26 | 11 | 22 | 13 | 6 | 6 | 22 | 64 | 13 | 13 | 22 | 44 | 12 | 86 | 57 |
Swell 3 Height (m) Direction Period (s) | NNW 8 | NNW 8 | NNW 8 | NNW 8 | NNW 7 | NNW 7 | W 12 | NNW 7 | W 12 | NNW 8 | SSW 18 | ESE 11 | NNW 8 | NNW 8 | W 11 | W 11 | NNW 8 | W 13 | S 16 | NNW 8 | WNW 13 |
| kJ | 6 | 6 | 6 | 6 | 5 | 5 | 11 | 5 | 11 | 6 | 30 | 22 | 12 | 12 | 21 | 21 | 6 | 29 | 43 | 12 | 34 |
Wind waves Height (m) Direction Period (s) | NE 6 | NE 6 | NE 6 | NE 6 | NE 6 | ENE 7 | NE 6 | NE 7 | NE 7 | NE 7 | NE 7 | NE 6 | NE 7 | NE 7 | NE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 6 | ENE 6 | ENE 7 |
| kJ | 50 | 58 | 66 | 71 | 73 | 91 | 79 | 131 | 97 | 84 | 99 | 120 | 124 | 159 | 240 | 289 | 302 | 332 | 351 | 432 | 610 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 11 | 161 | 11 | 0 | 0 | 0 | 0 | 149 | 11 | 161 | 161 | 11 | 167 | 167 | 167 | 164 | 167 | 176 | 167 | 167 | 167 |
Best forecast wave conditions in Oahu | |||||||||||||||||||||
Best forecast wave conditions in United States | |||||||||||||||||||||
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