Surf Forecasts:
How big are the waves at Keaulanas today (20 Aug):
- Morning surf: Morning surf (20 Aug, local time) - 2ft (0.6m), 18s period with SSW swell.
- Afternoon surf: Afternoon surf (20 Aug, local time) - 2.5ft (0.7m), 18s period with SW swell.
- Evening surf: Evening surf (20 Aug, local time) - 2.5ft (0.7m), 16s period with SSW swell.
The current surf forecast for Keaulanas at 10PM is: 0.7m 16s primary swell from a Southwest direction (forecast issued at 01:00pm August 20). An open ocean swell of 0.7m 7s is not directed at the surf break. The wind direction is predicted to be cross-offshore and the swell rating is 2.
| Time (HST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (20 Aug) | 2ft (0.6m) | 18s |
| Afternoon (20 Aug) | 2.5ft (0.7m) | 18s |
| Evening (20 Aug) | 2.5ft (0.7m) | 16s |
Table - waves today at Keaulanas. (Swell directed towards the surf break)
Short Range ForecastMostly dry. Warm (max 28°C on Thu afternoon, min 25°C on Thu night). Winds increasing (calm on Fri afternoon, fresh winds from the ENE by Sun morning). | |||||||||||||||||||||
Thu 20 | Friday 21 | Saturday 22 | |||||||||||||||||||
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) | SW 18 | SW 18 | SSW 17 | SSW 17 | SW 16 | SW 16 | SSW 17 | SSW 17 | SW 17 | SW 17 | SW 16 | SSW 16 | SSW 16 | SSW 16 | SSW 16 | SSW 16 | SSW 16 | SW 16 | SW 16 | SW 16 | SW 16 |
Wave Graph  | |||||||||||||||||||||
 kJ | 249 | 316 | 200 | 184 | 271 | 278 | 364 | 368 | 291 | 281 | 261 | 322 | 322 | 322 | 322 | 326 | 326 | 258 | 255 | 251 | 248 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | glassy | cross-off | cross-off | glassy | cross-off | glassy | cross-off | cross-off | cross | cross-on | glassy | glassy | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | off | off |
High Tide | 11:13AM0.55m | 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 | 28 | 27 | 27 | 26 | 26 | 25 | 26 | 27 | 27 | 27 | 27 | 26 | 26 | 25 | 26 | 28 | 28 | 27 | 26 | 26 |
Feels °C | 30 | 31 | 30 | 31 | 29 | 30 | 28 | 29 | 31 | 31 | 31 | 31 | 29 | 28 | 28 | 28 | 28 | 27 | 26 | 26 | 26 |
Swell 1 Height (m) Direction Period (s) | NE 6 | NE 7 | SSW 17 | NE 7 | NE 7 | SW 16 | SSW 17 | SSW 17 | SW 17 | SW 17 | SW 16 | SSW 16 | SSW 16 | SSW 16 | SSW 16 | SSW 16 | SSW 16 | SW 16 | SW 16 | SW 16 | SW 16 |
| kJ | 34 | 47 | 200 | 49 | 49 | 278 | 364 | 368 | 291 | 281 | 261 | 322 | 322 | 322 | 322 | 326 | 326 | 258 | 255 | 251 | 248 |
Swell 2 Height (m) Direction Period (s) | SW 18 | SW 18 | W 11 | SSW 17 | SW 16 | NNE 7 | NNE 7 | NNE 7 | NNE 7 | NNE 7 | NNE 7 | NNE 7 | NE 7 | W 10 | NE 7 | NE 6 | NE 6 | W 10 | W 11 | WNW 11 | WNW 13 |
| kJ | 249 | 316 | 55 | 184 | 271 | 42 | 42 | 42 | 42 | 42 | 32 | 31 | 37 | 50 | 35 | 34 | 33 | 75 | 58 | 100 | 111 |
Swell 3 Height (m) Direction Period (s) | S 11 | S 11 | S 11 | W 10 | W 10 | W 9 | W 9 | W 11 | W 11 | W 10 | W 10 | W 10 | W 10 | S 11 | W 10 | W 10 | W 10 | SSE 13 | WNW 12 | S 12 | W 11 |
| kJ | 39 | 39 | 39 | 49 | 45 | 42 | 27 | 57 | 56 | 50 | 49 | 49 | 49 | 21 | 50 | 51 | 73 | 53 | 61 | 46 | 57 |
Wind waves Height (m) Direction Period (s) | — | — | NE 7 | — | — | — | — | — | — | — | — | — | — | NE 7 | — | — | — | NE 6 | NE 6 | ENE 7 | ENE 7 |
| kJ | — | — | 49 | — | — | — | — | — | — | — | — | — | — | 37 | — | — | — | 42 | 43 | 56 | 68 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 4 | 5 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 5 | 6 | 0 | 5 |
Best forecast wave conditions in Oahu | |||||||||||||||||||||
Best forecast wave conditions in United States | |||||||||||||||||||||
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