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Riyue Bay (Riyuewan) surfForecast / Hainan / China
48hr Weather and Surf, issued 1 am Sunday 17 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 8AM is: 0.8m 6s primary swell from a South direction and 0.5m 5s secondary swell from a East direction (forecast issued at 01:00am May 17). The wind direction is predicted to be glassy.
| Time (CST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (17 May) | 2.5ft (0.8m) | 6s |
| Afternoon (17 May) | 3.5ft (1.1m) | 6s |
| Evening (17 May) | 4ft (1.2m) | 6s |
Table - waves today at Riyue Bay (Riyuewan). (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastModerate rain (total 17mm), heaviest on Sun morning. Warm (max 29°C on Sun morning, min 26°C on Sun night). Wind will be generally light. | ||||||||||||||||||||||||
Sunday 17 | Monday 18 | Tuesday 19 | ||||||||||||||||||||||
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 | 5 PM | 8 PM | 11 PM | |
Swell Height Map |    |    |    | |||||||||||||||||||||
SSE 6 | SSE 6 | S 6 | SSE 6 | S 6 | SSE 6 | SSE 6 | SSE 6 | SSE 6 | SSE 6 | ENE 8 | ENE 9 | ENE 9 | ENE 9 | E 9 | E 9 | E 9 | E 9 | ENE 9 | ENE 8 | E 8 | E 8 | E 8 | E 8 | |
91 | 64 | 47 | 48 | 71 | 109 | 100 | 100 | 103 | 82 | 73 | 103 | 123 | 123 | 158 | 162 | 162 | 158 | 126 | 120 | 113 | 88 | 86 | 86 | |
Wind (km/h) | ||||||||||||||||||||||||
glassy | glassy | glassy | on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross | cross-on | cross | glassy | glassy | glassy | |
High Tide | 00:37AM0.83m | 9:29AM1.59m | 10:07AM1.71m | 10:51AM1.76m | ||||||||||||||||||||
Low Tide | 1:38AM0.83m | 5:52PM-0.03m | 6:48PM-0.11m | 7:47PM-0.13m | ||||||||||||||||||||
 |  |  | | | | |  | | |  | | | | | | | | | | |  | | | |
 | — | 6:03 | — | — | — | — | — | — | — | 6:03 | — | — | — | — | — | — | — | 6:03 | — | — | — | — | — | — |
 | — | — | — | — | — | 7:06 | — | — | — | — | — | — | — | 7:06 | — | — | — | — | — | — | — | 7:07 | — | — |
— | 4 | 3 | 1 | 3 | 1 | — | — | — | 1 | — | — | — | — | — | — | — | 1 | 1 | 2 | 2 | — | — | — | |
Temp °C | 26 | 26 | 27 | 29 | 28 | 27 | 26 | 26 | 26 | 26 | 27 | 29 | 29 | 29 | 27 | 27 | 27 | 26 | 27 | 28 | 27 | 26 | 26 | 26 |
31 | 32 | 32 | 32 | 31 | 31 | 30 | 30 | 31 | 31 | 31 | 31 | 31 | 31 | 31 | 31 | 31 | 30 | 30 | 31 | 30 | 30 | 30 | 31 | |
Swell 1 Height (m) Direction Period (s) | SSE 6 | SSE 6 | S 6 | E 5 | E 5 | NE 8 | SSE 6 | SSE 6 | SSE 6 | SSE 6 | S 6 | SSE 6 | S 6 | ENE 9 | S 6 | S 6 | E 9 | E 9 | ENE 9 | ENE 8 | SSE 6 | E 8 | S 6 | S 6 |
 kJ | 91 | 64 | 47 | 7 | 7 | 17 | 100 | 100 | 103 | 82 | 62 | 64 | 78 | 123 | 101 | 81 | 162 | 158 | 126 | 120 | 64 | 88 | 81 | 79 |
Swell 2 Height (m) Direction Period (s) | E 10 | E 6 | E 5 | E 9 | NE 8 | E 9 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 9 | ENE 9 | — | E 9 | E 9 | S 6 | S 6 | SSE 6 | SSE 6 | E 8 | — | E 8 | E 8 |
| kJ | 16 | 25 | 13 | 16 | 17 | 15 | 26 | 26 | 24 | 54 | 73 | 103 | 123 | — | 158 | 162 | 64 | 47 | 50 | 64 | 113 | — | 86 | 86 |
Swell 3 Height (m) Direction Period (s) | ENE 6 | E 10 | E 9 | ENE 8 | E 9 | — | E 9 | E 9 | E 9 | — | ESE 5 | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | 8 | 16 | 16 | 6 | 16 | — | 16 | 15 | 26 | — | 10 | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | — | — | — | SSE 6 | S 6 | SSE 6 | — | — | — | S 6 | — | — | — | S 6 | — | — | — | — | — | — | — | S 6 | — | — |
| kJ | — | — | — | 48 | 71 | 109 | — | — | — | 75 | — | — | — | 95 | — | — | — | — | — | — | — | 81 | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 0 | 0 | 37 | 1249 | 1810 | 1810 | 1075 | 359 | 347 | 356 | 347 | 347 | 1249 | 1249 | 356 | 347 | 75 | 356 | 356 | 1183 | 37 | 0 | 0 | 0 |
Best forecast wave conditions in Hainan | ||||||||||||||||||||||||
Best forecast wave conditions in China | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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