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China Walls surfForecast / HAW – Oahu / USA
48hr Weather and Surf, issued 1 pm Sunday 17 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
25.5° C
(Which is normal for this time of year)How big are the waves at China Walls today?
The current surf forecast for China Walls at 6PM is: 0.7m 15s primary swell from a South-southwest direction (forecast issued at 01:00pm May 17). An open ocean swell of 1.4m 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 (17 May) | 2ft (0.6m) | 14s |
| Afternoon (17 May) | 2.5ft (0.7m) | 15s |
| Evening (17 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 25°C on Sun afternoon, min 23°C on Mon afternoon). Winds increasing (moderate winds from the ENE on Sun night, strong winds from the ENE by Wed morning). | ||||||||||||||||||||||||
Sun 17 | Monday 18 | Tuesday 19 | Wed 20 | |||||||||||||||||||||
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 | 2 AM | 5 AM | 8 AM | |
Swell Height Map |    |    |    |    | ||||||||||||||||||||
SSW 15 | SSW 15 | SSW 15 | SSW 15 | SSW 15 | SSW 14 | SSW 14 | SSW 14 | SSW 19 | SSW 19 | 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 | |
181 | 201 | 193 | 191 | 188 | 186 | 180 | 180 | 251 | 251 | 168 | 163 | 161 | 161 | 163 | 207 | 207 | 178 | 246 | 249 | 167 | 172 | 167 | 163 | |
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 | 4:05PM0.76m | 3:50AM0.14m | 4:55PM0.75m | 4:49AM0.12m | 5:47PM0.71m | 6:03AM0.12m | ||||||||||||||||||
Low Tide | 8:41AM-0.12m | 11:50PM0.01m | 9:23AM-0.11m | 00:51AM0.01m | 10:09AM-0.07m | 1:53AM0.01m | ||||||||||||||||||
 | |  |  | | | | | | | | | | | | | | | | | |  | | | |
 | — | — | — | — | — | — | 5:50 | — | — | — | — | — | — | — | 5:50 | — | — | — | — | — | — | — | 5:50 | — |
 | — | — | 7:01 | — | — | — | — | — | — | — | 7:02 | — | — | — | — | — | — | — | 7:02 | — | — | — | — | 7:02 |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Temp °C | 25 | 25 | 25 | 25 | 24 | 24 | 24 | 24 | 24 | 24 | 23 | 23 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 24 | 23 | 23 | 23 | 23 |
25 | 24 | 25 | 26 | 24 | 24 | 23 | 24 | 22 | 21 | 19 | 21 | 23 | 23 | 23 | 23 | 21 | 21 | 21 | 21 | 19 | 19 | 20 | 19 | |
Swell 1 Height (m) Direction Period (s) | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | E 8 | ENE 8 | SSW 14 | SSW 14 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | SSW 14 | SSW 14 | SSW 15 | SSW 15 | SSW 15 | SSW 15 | SSW 15 | SSW 14 |
 kJ | 223 | 223 | 216 | 250 | 318 | 350 | 350 | 341 | 341 | 310 | 168 | 163 | 266 | 259 | 240 | 232 | 175 | 178 | 246 | 249 | 167 | 172 | 167 | 163 |
Swell 2 Height (m) Direction Period (s) | SSW 15 | SSW 15 | SSW 15 | SSW 15 | SSW 15 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 19 | SSE 10 | SSW 14 | SSW 14 | SSW 14 | SSW 14 | SSW 18 | SSW 18 | SSE 6 | SSE 6 | SSE 9 | SSE 10 | NW 12 | NNW 12 |
| kJ | 181 | 201 | 193 | 191 | 188 | 186 | 180 | 180 | 180 | 180 | 148 | 19 | 161 | 161 | 163 | 175 | 207 | 176 | 8 | 7 | 17 | 18 | 35 | 27 |
Swell 3 Height (m) Direction Period (s) | SSE 6 | SSE 7 | SSE 7 | SSW 21 | SSE 7 | SSE 7 | SSE 7 | SSE 7 | SSW 19 | SSW 19 | SSE 10 | SSW 16 | SSE 10 | SSW 16 | SSW 17 | SSW 18 | SSE 10 | SSE 9 | NNW 12 | NNW 11 | NW 11 | NW 11 | SW 16 | SW 16 |
| kJ | 22 | 20 | 18 | 180 | 16 | 15 | 15 | 9 | 251 | 251 | 39 | 51 | 19 | 91 | 96 | 207 | 35 | 35 | 27 | 11 | 30 | 30 | 41 | 41 |
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 |
| kJ | — | — | — | — | — | — | — | — | — | — | 322 | 314 | — | — | — | — | 253 | 259 | 270 | 306 | 353 | 361 | 361 | 404 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 43 | 45 | 45 | 43 | 43 | 43 | 13 | 43 | 43 | 44 | 51 | 45 | 44 | 43 | 43 | 51 |
Best forecast wave conditions in Oahu | ||||||||||||||||||||||||
Best forecast wave conditions in United States | ||||||||||||||||||||||||
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