Surf Forecasts:
How big are the waves at Keaulanas today (21 Jul):
- Morning surf: Morning surf (21 Jul, local time) - 2.5ft (0.8m), 15s period with S swell.
- Afternoon surf: Afternoon surf (21 Jul, local time) - 3ft (0.9m), 14s period with S swell.
- Evening surf: Evening surf (21 Jul, local time) - 3ft (0.9m), 13s period with S swell.
The current surf forecast for Keaulanas at 6PM is: 0.9m 14s primary swell from a South direction (forecast issued at 01:00pm July 21). An open ocean swell of 0.8m 7s is not directed at the surf break, a second open ocean swell of 0.8m 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 (21 Jul) | 2.5ft (0.8m) | 15s |
| Afternoon (21 Jul) | 3ft (0.9m) | 14s |
| Evening (21 Jul) | 3ft (0.9m) | 13s |
Table - waves today at Keaulanas. (Swell directed towards the surf break)
Short Range ForecastLight rain (total 2mm), mostly falling on Tue afternoon. Warm (max 27°C on Tue afternoon, min 24°C on Wed night). Mainly fresh winds. | |||||||||||||||||||||
Tue 21 | Wednesday 22 | Thursday 23 | |||||||||||||||||||
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 | S 14 | S 13 | S 13 | S 13 | SSW 24 | SSW 24 | S 13 | SSW 23 | SSW 22 | SSW 22 | SSW 22 | SSW 21 | SSW 21 | SSW 20 | SSW 20 | SSW 20 | SSW 19 | SSW 19 |
Wave Graph  | |||||||||||||||||||||
 kJ | 329 | 325 | 302 | 289 | 281 | 277 | 273 | 322 | 437 | 126 | 426 | 517 | 489 | 480 | 471 | 483 | 528 | 512 | 395 | 708 | 679 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | off | off | off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off |
High Tide | 10:58AM0.52m | 12:00PM0.57m | 12:51PM0.61m | ||||||||||||||||||
Low Tide | 3:27AM0.11m | 4:14AM0.11m | |||||||||||||||||||
 |  | |  |  | | | |  | | | | | | | | | | | | | |
 | — | — | — | — | — | — | 6:01 | — | — | — | — | — | — | — | 6:01 | — | — | — | — | — | — |
 | — | — | 7:15 | — | — | — | — | — | — | — | 7:15 | — | — | — | — | — | — | — | 7:15 | — | — |
mm | — | 1 | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 27 | 27 | 27 | 26 | 25 | 25 | 25 | 25 | 26 | 26 | 26 | 25 | 24 | 24 | 24 | 24 | 26 | 27 | 26 | 25 | 24 |
Feels °C | 29 | 28 | 28 | 27 | 26 | 26 | 26 | 25 | 25 | 24 | 25 | 24 | 24 | 24 | 23 | 23 | 24 | 24 | 24 | 24 | 22 |
Swell 1 Height (m) Direction Period (s) | S 14 | S 14 | S 14 | S 14 | S 13 | S 13 | S 13 | S 13 | S 13 | NE 7 | SSW 23 | S 13 | S 13 | S 13 | S 13 | SSW 21 | SSW 20 | SSW 20 | SSW 20 | SSW 19 | SSW 19 |
| kJ | 329 | 325 | 302 | 289 | 281 | 277 | 273 | 268 | 277 | 54 | 426 | 212 | 212 | 209 | 155 | 483 | 528 | 512 | 395 | 708 | 679 |
Swell 2 Height (m) Direction Period (s) | NE 7 | NE 7 | NE 7 | SSW 16 | NE 7 | NE 7 | NE 7 | NE 7 | NE 7 | S 11 | S 13 | SSW 22 | SSW 22 | SSW 22 | SSW 21 | S 12 | S 12 | S 13 | S 11 | S 13 | S 11 |
| kJ | 44 | 54 | 54 | 97 | 47 | 37 | 37 | 45 | 37 | 79 | 125 | 517 | 489 | 480 | 471 | 150 | 137 | 155 | 125 | 280 | 83 |
Swell 3 Height (m) Direction Period (s) | SW 17 | SW 17 | SSW 16 | SSW 26 | SSW 15 | SSW 26 | SSW 26 | SSW 24 | SSW 24 | S 13 | S 10 | SSW 18 | SSW 18 | SSW 18 | NE 6 | SSW 16 | SSW 16 | SW 16 | SSW 16 | NNW 10 | S 13 |
| kJ | 73 | 71 | 103 | 133 | 93 | 224 | 217 | 322 | 437 | 126 | 78 | 120 | 204 | 204 | 35 | 99 | 100 | 125 | 173 | 18 | 87 |
Wind waves Height (m) Direction Period (s) | — | ENE 7 | ENE 7 | NE 7 | — | — | — | — | E 7 | E 7 | NE 7 | NE 7 | NE 6 | NE 6 | E 6 | ENE 7 | ENE 7 | ENE 7 | NE 7 | NE 6 | NE 6 |
| kJ | — | 65 | 65 | 55 | — | — | — | — | 94 | 107 | 52 | 52 | 49 | 43 | 99 | 76 | 149 | 117 | 100 | 83 | 97 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 0 | 0 | 2 | 2 | 2 | 0 | 0 | 2 | 2 | 6 | 0 | 0 | 0 | 2 | 2 | 2 | 5 | 9 | 9 | 5 | 5 |
Best forecast wave conditions in Oahu | |||||||||||||||||||||
Best forecast wave conditions in United States | |||||||||||||||||||||
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