Surf Forecasts:
How big are the waves at Keaulanas today (17 Aug):
- Morning surf: Morning surf (17 Aug, local time) - 3ft (0.9m), 14s period with S swell.
- Afternoon surf: Afternoon surf (17 Aug, local time) - 3ft (0.9m), 14s period with S swell.
- Evening surf: Evening surf (17 Aug, local time) - 2.5ft (0.8m), 14s period with S swell.
The current surf forecast for Keaulanas at 2AM is: 0.8m 14s primary swell from a South direction (forecast issued at 07:00pm August 16). An open ocean swell of 1.0m 8s is not directed at the surf break, a second open ocean swell of 0.9m 7s is not directed at the surf break. The wind direction is predicted to be cross-offshore.
| Time (HST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (17 Aug) | 3ft (0.9m) | 14s |
| Afternoon (17 Aug) | 3ft (0.9m) | 14s |
| Evening (17 Aug) | 2.5ft (0.8m) | 14s |
Table - waves today at Keaulanas. (Swell directed towards the surf break)
Short Range ForecastLight rain (total 2mm), mostly falling on Sun night. Warm (max 27°C on Mon afternoon, min 24°C on Mon night). Wind will be generally light. | |||||||||||||||||||
Sun 16 | Monday 17 | Tuesday 18 | |||||||||||||||||
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 13 | S 13 | S 14 | 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 | S 13 |
Wave Graph  | |||||||||||||||||||
 kJ | 183 | 219 | 166 | 239 | 418 | 334 | 338 | 338 | 260 | 257 | 249 | 225 | 219 | 215 | 165 | 165 | 162 | 166 | 119 |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | 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 |
High Tide | 5:51PM0.47m | 7:32AM0.51m | 6:05PM0.40m | 8:37AM0.52m | 5:51PM0.34m | ||||||||||||||
Low Tide | 00:30AM0.09m | 1:28PM0.30m | 00:54AM0.10m | 3:34PM0.33m | |||||||||||||||
 |  | |  | |  |  | | | | | | | | | | |  | | |
 | — | — | — | — | 6:11 | — | — | — | — | — | — | — | 6:11 | — | — | — | — | — | — |
 | 7:01 | — | — | — | — | — | — | — | 7:00 | — | — | — | — | — | — | — | 7:00 | — | — |
mm | 2 | 1 | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 27 | 26 | 26 | 26 | 25 | 26 | 26 | 27 | 27 | 25 | 25 | 24 | 25 | 25 | 26 | 27 | 27 | 25 | 25 |
Feels °C | 27 | 28 | 28 | 28 | 28 | 28 | 27 | 28 | 28 | 26 | 26 | 25 | 26 | 26 | 26 | 27 | 27 | 25 | 26 |
Swell 1 Height (m) Direction Period (s) | NE 8 | SSE 8 | SSE 8 | NE 8 | 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 | S 13 |
| kJ | 182 | 243 | 151 | 111 | 418 | 334 | 338 | 338 | 260 | 257 | 249 | 225 | 219 | 215 | 165 | 165 | 162 | 166 | 119 |
Swell 2 Height (m) Direction Period (s) | S 13 | NNE 7 | NE 8 | SSE 7 | NE 8 | NE 7 | NE 7 | NE 7 | S 6 | SSW 5 | S 5 | SW 6 | SW 6 | SW 16 | NE 6 | NE 6 | SSW 18 | NE 6 | NE 6 |
| kJ | 163 | 62 | 117 | 91 | 94 | 65 | 64 | 57 | 22 | 9 | 8 | 10 | 14 | 69 | 33 | 26 | 123 | 28 | 20 |
Swell 3 Height (m) Direction Period (s) | S 16 | S 13 | S 13 | S 14 | SSE 7 | SSE 6 | S 6 | S 6 | SW 6 | SW 6 | SW 6 | SSW 5 | SW 16 | SW 6 | SSW 17 | SSW 18 | WNW 13 | SW 18 | SE 7 |
| kJ | 183 | 219 | 166 | 239 | 60 | 53 | 35 | 31 | 10 | 10 | 10 | 5 | 41 | 10 | 115 | 120 | 34 | 80 | 13 |
Wind waves Height (m) Direction Period (s) | SSE 8 | SSE 8 | SSE 8 | — | — | — | — | E 8 | NE 7 | NE 7 | NE 7 | NE 6 | NE 6 | NE 6 | — | — | NE 6 | E 7 | ENE 8 |
| kJ | 328 | 394 | 240 | — | — | — | — | 142 | 55 | 55 | 54 | 49 | 35 | 33 | — | — | 27 | 106 | 94 |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 24 | 13 | 11 | 6 | 0 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 |
Best forecast wave conditions in Oahu | |||||||||||||||||||
Best forecast wave conditions in United States | |||||||||||||||||||
Header Global | |||||||||||||||||||
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