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Riyue Bay (Riyuewan) surfForecast / Hainan / China
48hr Weather and Surf, issued 1 pm Tuesday 19 May 2026 CSTForecast update in hr min s Forecast update imminent
Riyue Bay (Riyuewan) surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Riyue Bay (Riyuewan) sea temperature is
28.9° C
(Which is normal for this time of year)How big are the waves at Riyue Bay (Riyuewan) today?
The current surf forecast for Riyue Bay (Riyuewan) at 10PM is: 1.1m 6s primary swell from a South direction and 0.8m 8s secondary swell from a East direction, 0.8m 8s secondary swell from a East direction (forecast issued at 01:00pm May 19). The wind direction is predicted to be cross-onshore.
| Time (CST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (19 May) | 3ft (0.9m) | 8s |
| Afternoon (19 May) | 3.5ft (1.1m) | 7s |
| Evening (19 May) | 3.5ft (1.1m) | 7s |
Table - waves today at Riyue Bay (Riyuewan). (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastHeavy rain (total 77mm), heaviest during Wed night. Warm (max 30°C on Thu afternoon, min 25°C on Wed morning). Wind will be generally light. | ||||||||||||||||||||||||
Tue 19 | Wednesday 20 | Thursday 21 | Fri 22 | |||||||||||||||||||||
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 |    |    |    |    | ||||||||||||||||||||
E 8 | S 7 | S 7 | S 7 | S 6 | S 6 | S 6 | S 6 | S 7 | S 7 | S 7 | S 7 | S 7 | S 7 | S 7 | S 7 | S 7 | S 8 | S 7 | S 7 | S 7 | S 7 | S 7 | S 7 | |
115 | 104 | 107 | 104 | 97 | 112 | 108 | 130 | 176 | 211 | 278 | 198 | 203 | 198 | 187 | 214 | 272 | 320 | 279 | 239 | 203 | 138 | 134 | 134 | |
Wind (km/h) | ||||||||||||||||||||||||
cross | cross | glassy | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | glassy | glassy | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | |
High Tide | 10:51AM1.76m | 11:39AM1.76m | 12:31PM1.69m | |||||||||||||||||||||
Low Tide | 7:47PM-0.13m | 8:47PM-0.09m | 9:46PM-0.01m | |||||||||||||||||||||
 |  |  |  | | | | |  | |  |  | | |  | | | | |  | | |  | | |
 | — | — | — | — | — | — | 6:03 | — | — | — | — | — | — | — | 6:03 | — | — | — | — | — | — | — | 6:03 | — |
 | — | — | 7:07 | — | — | — | — | — | — | — | 7:07 | — | — | — | — | — | — | — | 7:07 | — | — | — | — | 7:07 |
2 | 1 | — | 1 | 2 | 4 | 4 | 5 | 9 | 8 | — | — | 1 | 4 | 10 | 10 | 8 | 5 | 1 | — | 1 | 1 | — | 1 | |
Temp °C | 26 | 27 | 27 | 27 | 27 | 27 | 27 | 28 | 25 | 26 | 27 | 27 | 27 | 27 | 27 | 28 | 28 | 30 | 30 | 28 | 27 | 27 | 27 | 28 |
30 | 31 | 32 | 31 | 31 | 30 | 30 | 31 | 28 | 31 | 33 | 33 | 31 | 30 | 30 | 32 | 30 | 32 | 33 | 33 | 31 | 31 | 31 | 32 | |
Swell 1 Height (m) Direction Period (s) | S 6 | S 7 | S 7 | S 7 | E 8 | E 8 | E 8 | E 8 | E 9 | S 7 | S 7 | S 7 | E 9 | E 9 | E 9 | E 9 | E 9 | S 8 | S 7 | S 7 | S 7 | S 7 | ENE 9 | ENE 9 |
 kJ | 115 | 104 | 107 | 104 | 82 | 60 | 60 | 60 | 57 | 211 | 189 | 198 | 61 | 61 | 43 | 42 | 42 | 320 | 279 | 239 | 203 | 138 | 27 | 26 |
Swell 2 Height (m) Direction Period (s) | E 8 | E 8 | E 8 | E 8 | — | — | — | — | — | E 9 | E 9 | E 9 | — | — | — | — | — | ENE 9 | ENE 9 | ENE 9 | ENE 9 | ENE 9 | — | — |
| kJ | 113 | 88 | 86 | 84 | — | — | — | — | — | 59 | 61 | 61 | — | — | — | — | — | 28 | 28 | 27 | 27 | 27 | — | — |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | — | — | — | — | S 6 | S 6 | S 6 | S 6 | S 7 | — | S 7 | — | S 7 | S 7 | S 7 | S 7 | S 7 | — | — | — | — | — | S 7 | S 7 |
| kJ | — | — | — | — | 97 | 112 | 108 | 130 | 176 | — | 278 | — | 203 | 198 | 187 | 214 | 272 | — | — | — | — | — | 134 | 134 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 75 | 37 | 0 | 1157 | 356 | 347 | 347 | 347 | 347 | 1173 | 0 | 0 | 353 | 347 | 353 | 347 | 356 | 1183 | 347 | 356 | 347 | 347 | 347 | 347 |
Best forecast wave conditions in Hainan | ||||||||||||||||||||||||
Best forecast wave conditions in China | ||||||||||||||||||||||||
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