Surf Forecasts:
How big are the waves at China Walls today (30 Jul):
- Morning surf: Morning surf (30 Jul, local time) - 2.5ft (0.7m), 14s period with S swell.
- Afternoon surf: Afternoon surf (30 Jul, local time) - 2ft (0.6m), 18s period with SSW swell.
- Evening surf: Evening surf (30 Jul, local time) - 2.5ft (0.7m), 13s period with S swell.
The current surf forecast for China Walls at 1AM is: 0.7m 14s primary swell from a South direction (forecast issued at 07:00pm July 29). An open ocean swell of 1.4m 8s 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 (30 Jul) | 2.5ft (0.7m) | 14s |
| Afternoon (30 Jul) | 2ft (0.6m) | 18s |
| Evening (30 Jul) | 2.5ft (0.7m) | 13s |
Table - waves today at China Walls. (Swell directed towards the surf break)
Short Range ForecastMostly dry. Warm (max 27°C on Thu afternoon, min 24°C on Fri night). Winds increasing (light winds from the NE on Wed night, strong winds from the ENE by Fri night). | |||||||||||||||||||
Wed 29 | Thursday 30 | Friday 31 | |||||||||||||||||
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 13 | S 13 | S 14 | S 14 | S 14 | S 14 | SSW 18 | SSW 18 | S 13 | S 13 | SSW 16 | E 16 | E 15 | E 8 | E 16 | E 16 | E 15 | E 15 |
Wave Graph  | |||||||||||||||||||
 kJ | 195 | 121 | 121 | 184 | 181 | 181 | 179 | 207 | 207 | 168 | 168 | 177 | 208 | 228 | 367 | 231 | 301 | 229 | 226 |
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 |
High Tide | 3:28PM0.69m | 3:26AM0.26m | 3:57PM0.68m | 4:08AM0.30m | 4:25PM0.65m | ||||||||||||||
Low Tide | 10:49PM0.08m | 8:58AM0.02m | 11:13PM0.07m | 9:38AM0.05m | |||||||||||||||
 |  | | |  | |  | | | | | | | | | | |  | | |
 | — | — | — | — | 6:03 | — | — | — | — | — | — | — | 6:03 | — | — | — | — | — | — |
 | 7:10 | — | — | — | — | — | — | — | 7:09 | — | — | — | — | — | — | — | 7:09 | — | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 27 | 26 | 26 | 25 | 25 | 26 | 26 | 27 | 26 | 26 | 26 | 26 | 26 | 25 | 26 | 26 | 25 | 25 | 25 |
Feels °C | 29 | 28 | 29 | 28 | 27 | 28 | 25 | 27 | 25 | 26 | 26 | 26 | 26 | 24 | 23 | 23 | 21 | 22 | 21 |
Swell 1 Height (m) Direction Period (s) | ENE 9 | ENE 9 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | S 13 | S 13 | S 13 | S 13 | E 15 | S 12 | E 16 | E 16 | E 15 | E 15 |
| kJ | 413 | 354 | 239 | 224 | 167 | 232 | 250 | 214 | 204 | 168 | 168 | 166 | 163 | 228 | 153 | 231 | 301 | 222 | 213 |
Swell 2 Height (m) Direction Period (s) | S 14 | S 13 | S 13 | S 14 | S 14 | S 14 | S 14 | S 13 | S 13 | SW 18 | SW 17 | SSW 16 | E 16 | S 13 | E 15 | SW 16 | SW 15 | SW 15 | SW 15 |
| kJ | 195 | 121 | 121 | 184 | 181 | 181 | 179 | 176 | 171 | 152 | 145 | 177 | 185 | 158 | 159 | 201 | 239 | 229 | 226 |
Swell 3 Height (m) Direction Period (s) | SSW 20 | S 15 | N 7 | SW 19 | N 7 | N 7 | SW 18 | SSW 18 | SSW 18 | E 18 | E 16 | E 16 | SW 16 | SW 16 | SW 16 | S 12 | S 12 | S 12 | S 12 |
| kJ | 37 | 70 | 34 | 58 | 34 | 24 | 154 | 207 | 207 | 97 | 85 | 127 | 208 | 208 | 206 | 110 | 106 | 73 | 72 |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | ENE 8 | ENE 8 | E 7 | E 7 | E 8 | E 8 | ENE 8 | ENE 8 | ENE 7 | ENE 8 |
| kJ | — | — | — | — | — | — | — | — | — | 178 | 202 | 245 | 251 | 292 | 367 | 385 | 416 | 487 | 681 |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 0 | 0 | 0 | 0 | 0 | 9 | 43 | 43 | 43 | 12 | 12 | 43 | 43 | 45 | 51 | 54 | 64 | 47 | 57 |
Best forecast wave conditions in Oahu | |||||||||||||||||||
Best forecast wave conditions in United States | |||||||||||||||||||
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