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China Walls surfForecast / HAW – Oahu / USA
48hr Weather and Surf, issued 7 pm Wednesday 17 Sep 2025 HST
How big are the waves at China Walls today?
The current surf forecast for China Walls at 12AM is: 1.5m 6s primary swell from a East direction and 0.4m 15s secondary swell from a Southwest direction (forecast issued at 07:00pm September 17). An open ocean swell of 0.4m 8s is not directed at the surf break. The wind direction is predicted to be cross-offshore.
| Time (HST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (18 Sep) | - | - |
| Afternoon (18 Sep) | 1.5ft (0.4m) | 15s |
| Evening (18 Sep) | 5ft (1.6m) | 6s |
Table - waves today at China Walls. (Swell directed towards the surf break)
Wednesday 17 | Thursday 18 | Friday 19 | Saturday 20 | |||||||||||||||||||||
| 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 | 2 AM | 5 AM | 8 AM | 11 AM | 2 PM | |
Rating (10 max) | ||||||||||||||||||||||||
Swell Height Map |    |    |    |    | ||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||
| Period(s) (?) | 15 | 15 | 6 | 7 | 7 | 6 | 14 | 7 | 14 | 14 | 14 | 13 | 13 | 13 | 13 | 13 | 18 | 18 | 18 | 17 | 16 | 16 | 16 | 16 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 87 | 86 | 184 | 171 | 198 | 166 | 113 | 171 | 78 | 77 | 105 | 102 | 101 | 99 | 68 | 68 | 176 | 243 | 225 | 232 | 295 | 366 | 366 | 362 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore 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 | cross- off | cross- off | cross- off |
High Tide / height (m) | 12:59AM 0.32 | 1:16PM 0.66 | 1:37AM 0.38 | 1:50PM 0.64 | 2:14AM 0.44 | |||||||||||||||||||
Low Tide / height (m) | 7:57PM 0.08 | 6:32AM 0.07 | 8:20PM 0.07 | 7:23AM 0.07 | 8:41PM 0.06 | 8:09AM 0.09 | ||||||||||||||||||
Wednesday 17 | Thursday 18 | Friday 19 | Saturday 20 | |||||||||||||||||||||
| Sunrise | - | - | - | - | - | 6:18 | - | - | - | - | - | - | - | 6:18 | - | - | - | - | - | - | - | 6:18 | - | - |
| Sunset | 6:31 | - | - | - | - | - | - | - | 6:30 | - | - | - | - | - | - | - | 6:30 | - | - | - | - | - | - | - |
 |  | | | |  | | | | | | |  | | | | | | | | | | | | |
Rain (mm) | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| Temp. °C | 25 | 25 | 25 | 25 | 25 | 25 | 26 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 | 25 |
| Feels °C (?) | 22 | 23 | 24 | 24 | 23 | 22 | 24 | 22 | 23 | 24 | 25 | 24 | 24 | 23 | 23 | 23 | 23 | 24 | 24 | 24 | 24 | 23 | 22 | 23 |
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Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
Recent Eyeball Surf Reports for HAW - Oahu
Continuing clean conditions at China Walls (calm at Saint Louis Heights wx 10 km from China Walls). 0.7m 8s swell from the ESE with a 0.4m 11s groundswell from the S and a 0.2m 12s groundswell from the SW. 3 swells combining to make bigger set waves.
1 h 18 min ago
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