Surf Forecasts:
How big are the waves at China Walls 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 China Walls at 10PM is: 0.9m 13s 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. 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 China Walls. (Swell directed towards the surf break)
Short Range ForecastLight rain (total 3mm), mostly falling on Tue afternoon. Warm (max 25°C on Tue afternoon, min 24°C on Wed night). Winds increasing (light winds from the ENE on Tue night, strong winds from the ENE by Thu morning). | |||||||||||||||||||||
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 | S 24 | SSW 24 | SSW 24 | 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 | 320 | 311 | 289 | 281 | 277 | 273 | 289 | 317 | 314 | 426 | 387 | 485 | 363 | 471 | 483 | 412 | 399 | 395 | 391 | 517 |
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 | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off |
High Tide | 10:08AM0.51m | 7:46PM0.29m | 11:08AM0.55m | 8:50PM0.23m | 11:59AM0.59m | 10:38PM0.19m | |||||||||||||||
Low Tide | 5:25PM0.28m | 3:12AM0.05m | 7:38PM0.23m | 3:57AM0.05m | 8:24PM0.18m | ||||||||||||||||
 |  | |  |  | | |  | | | | | | | | | | | | | | |
 | — | — | — | — | — | — | 6:00 | — | — | — | — | — | — | — | 6:00 | — | — | — | — | — | — |
 | — | — | 7:14 | — | — | — | — | — | — | — | 7:14 | — | — | — | — | — | — | — | 7:13 | — | — |
mm | — | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 | — | — | — | — | — |
Temp °C | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 24 | 24 | 24 | 24 | 24 | 25 | 25 | 24 | 24 | 24 |
Feels °C | 24 | 24 | 24 | 25 | 25 | 25 | 25 | 23 | 22 | 22 | 22 | 21 | 21 | 21 | 21 | 20 | 21 | 21 | 20 | 20 | 20 |
Swell 1 Height (m) Direction Period (s) | S 14 | S 14 | NE 7 | S 14 | S 13 | ENE 7 | ENE 7 | S 13 | S 13 | E 12 | E 11 | S 13 | S 13 | S 13 | E 12 | E 12 | SSW 20 | SSW 20 | SSW 20 | SSW 19 | SSW 19 |
| kJ | 329 | 320 | 69 | 289 | 281 | 120 | 128 | 273 | 215 | 134 | 123 | 209 | 160 | 157 | 180 | 177 | 412 | 399 | 395 | 391 | 517 |
Swell 2 Height (m) Direction Period (s) | SW 17 | SW 17 | S 14 | NE 7 | NE 7 | S 13 | S 13 | E 12 | E 12 | S 13 | SSW 23 | E 12 | SSW 22 | SSW 22 | S 13 | SSW 21 | S 12 | S 11 | S 11 | S 13 | S 13 |
| kJ | 72 | 71 | 311 | 65 | 65 | 277 | 273 | 103 | 138 | 126 | 426 | 130 | 485 | 363 | 155 | 483 | 97 | 127 | 125 | 222 | 85 |
Swell 3 Height (m) Direction Period (s) | E 12 | E 12 | SW 16 | E 7 | E 7 | E 13 | E 12 | S 24 | SSW 24 | SSW 24 | S 13 | SSW 22 | SW 18 | SW 18 | SSW 21 | S 12 | SSW 16 | SSW 16 | SW 16 | SW 16 | S 11 |
| kJ | 25 | 24 | 67 | 50 | 50 | 121 | 107 | 289 | 317 | 314 | 125 | 387 | 150 | 150 | 471 | 148 | 100 | 100 | 127 | 40 | 56 |
Wind waves Height (m) Direction Period (s) | ENE 7 | ENE 7 | E 7 | — | E 7 | — | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 6 | ENE 12 | ENE 6 | ENE 6 | ENE 6 | ENE 7 | ENE 7 | ENE 7 | ENE 7 | ENE 7 |
| kJ | 136 | 136 | 46 | — | 82 | — | 181 | 149 | 145 | 171 | 166 | 160 | 683 | 179 | 182 | 177 | 384 | 360 | 350 | 435 | 423 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 43 | 12 | 12 | 12 | 12 | 12 | 12 | 43 | 45 | 51 | 43 | 43 | 43 | 43 | 43 | 45 | 51 | 54 | 54 | 51 | 51 |
Best forecast wave conditions in Oahu | |||||||||||||||||||||
Best forecast wave conditions in United States | |||||||||||||||||||||
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