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China Walls surfForecast / HAW – Oahu / USA
48hr Weather and Surf, issued 7 pm Monday 18 May 2026 HSTForecast update in hr min s Forecast update imminent
China Walls surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's China Walls sea temperature is
25.7° C
(Which is slightly warmer than usual)How big are the waves at China Walls today?
The current surf forecast for China Walls at 12AM is: 0.7m 14s primary swell from a South-southwest direction and 0.3m 6s secondary swell from a South-southeast direction (forecast issued at 07:00pm May 18). An open ocean swell of 1.5m 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 (19 May) | 2ft (0.6m) | 18s |
| Afternoon (19 May) | 2.5ft (0.7m) | 14s |
| Evening (19 May) | 2.5ft (0.7m) | 15s |
Table - waves today at China Walls. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastMostly dry. Warm (max 24°C on Mon night, min 23°C on Tue night). Mainly strong winds. | ||||||||||||||||||||||||
Mon 18 | Tuesday 19 | Wednesday 20 | Thu 21 | |||||||||||||||||||||
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 | |
Swell Height Map |    |    |    |    | ||||||||||||||||||||
SSW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 18 | SSW 18 | SSW 14 | SSW 15 | SSW 15 | SSW 15 | SSW 15 | SSW 15 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 17 | SSW 16 | S 16 | S 16 | SSW 16 | SSW 16 | |
168 | 163 | 161 | 161 | 163 | 207 | 207 | 178 | 246 | 249 | 167 | 172 | 167 | 163 | 163 | 115 | 108 | 105 | 99 | 91 | 134 | 132 | 87 | 85 | |
Wind (km/h) | ||||||||||||||||||||||||
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 | 4:55PM0.75m | 4:49AM0.12m | 5:47PM0.71m | 6:03AM0.12m | 6:43PM0.66m | 7:34AM0.14m | ||||||||||||||||||
Low Tide | 00:51AM0.01m | 10:09AM-0.07m | 1:53AM0.01m | 11:02AM-0.02m | 2:51AM0.00m | 12:06PM0.05m | ||||||||||||||||||
 |  | |  | |  | | | | | | | | | | | | | | | | | | | |
 | — | — | — | — | 5:50 | — | — | — | — | — | — | — | 5:50 | — | — | — | — | — | — | — | 5:50 | — | — | — |
 | 7:02 | — | — | — | — | — | — | — | 7:02 | — | — | — | — | — | — | — | 7:02 | — | — | — | — | — | — | 7:04 |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Temp °C | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 23 | 23 | 24 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 | 23 |
21 | 22 | 22 | 22 | 23 | 22 | 22 | 22 | 21 | 21 | 21 | 21 | 20 | 19 | 20 | 17 | 18 | 18 | 18 | 17 | 17 | 17 | 17 | 17 | |
Swell 1 Height (m) Direction Period (s) | SSW 14 | SSW 14 | SSW 14 | SSW 14 | ENE 8 | ENE 8 | SSW 14 | SSW 14 | SSW 15 | SSW 15 | SSW 15 | SSW 15 | SSW 15 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 13 | SSW 13 | S 16 | S 16 | SSW 16 | SSW 16 |
 kJ | 168 | 163 | 161 | 161 | 259 | 251 | 178 | 178 | 246 | 249 | 167 | 172 | 167 | 163 | 163 | 115 | 108 | 105 | 69 | 68 | 134 | 132 | 87 | 85 |
Swell 2 Height (m) Direction Period (s) | SSW 19 | SSW 16 | SSE 6 | SSW 16 | SSW 14 | SSW 14 | SSW 18 | SSW 18 | SSE 10 | SSE 9 | SSE 9 | NW 11 | NW 12 | NNW 12 | NNW 12 | NNW 11 | NNW 11 | NNW 11 | SSW 17 | SSW 16 | SSW 13 | SSW 13 | SSW 13 | SSW 12 |
| kJ | 148 | 51 | 8 | 91 | 163 | 175 | 207 | 176 | 18 | 17 | 17 | 30 | 35 | 27 | 26 | 23 | 23 | 22 | 99 | 91 | 58 | 56 | 59 | 30 |
Swell 3 Height (m) Direction Period (s) | SSE 7 | SSE 6 | SSW 16 | SSE 6 | SSW 17 | SSW 18 | SSE 10 | SSE 10 | NNW 12 | NNW 11 | NW 11 | SSE 10 | SW 16 | SW 16 | SSW 18 | SSW 18 | SSW 18 | SSW 18 | NNW 11 | NNW 10 | NNW 10 | SSE 14 | SSE 13 | SSE 13 |
| kJ | 9 | 8 | 51 | 8 | 96 | 207 | 18 | 18 | 27 | 11 | 30 | 18 | 41 | 41 | 63 | 63 | 61 | 61 | 22 | 22 | 10 | 18 | 17 | 17 |
Wind waves Height (m) Direction Period (s) | ENE 8 | ENE 8 | ENE 8 | ENE 8 | — | — | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 |
| kJ | 394 | 353 | 306 | 259 | — | — | 246 | 234 | 298 | 310 | 327 | 361 | 414 | 520 | 570 | 655 | 702 | 719 | 827 | 871 | 1081 | 1009 | 1026 | 1098 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 51 | 43 | 43 | 43 | 43 | 43 | 43 | 44 | 51 | 44 | 44 | 43 | 43 | 51 | 51 | 56 | 56 | 60 | 60 | 60 | 114 | 116 | 58 | 117 |
Best forecast wave conditions in Oahu | ||||||||||||||||||||||||
Best forecast wave conditions in United States | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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