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Surf Forecasts:
Riyue Bay (Riyuewan) surfForecast / Hainan / China
48hr Weather and Surf, issued 7 am Friday 19 Sep 2025 CST
How big are the waves at Riyue Bay (Riyuewan) today?
The current surf forecast for Riyue Bay (Riyuewan) at 8AM is: 0.9m 7s primary swell from a East-northeast direction and 0.1m 6s secondary swell from a South direction (forecast issued at 07:00am September 19). The wind direction is predicted to be cross-offshore.
| Time (CST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (19 Sep) | 3ft (0.9m) | 7s |
| Afternoon (19 Sep) | 3ft (0.9m) | 7s |
| Evening (19 Sep) | 3.5ft (1.1m) | 9s |
Table - waves today at Riyue Bay (Riyuewan). (Swell directed towards the surf break)
Friday 19 | Saturday 20 | Sunday 21 | Mon 22 | |||||||||||||||||||||
| 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 | 2 AM | |
Rating (10 max) | ||||||||||||||||||||||||
Swell Height Map |    |    |    |    | ||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||
| Period(s) (?) | 8 | 7 | 7 | 7 | 10 | 9 | 9 | 8 | 8 | 8 | 8 | 8 | 7 | 7 | 7 | 7 | 6 | 6 | 6 | 6 | 6 | 6 | 6 | 6 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 111 | 91 | 86 | 91 | 188 | 207 | 162 | 120 | 92 | 67 | 45 | 57 | 54 | 37 | 24 | 22 | 20 | 12 | 12 | 11 | 12 | 14 | 12 | 7 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross- off | cross- off | cross | cross- on | cross- on | cross | glass | glass | glass | glass | glass | on | on | glass | glass | glass | glass | cross- off | cross | cross- on | cross | cross | cross- off | cross- off |
High Tide / height (m) | 7:38AM 1.40 | 8:41AM 1.36 | 11:15PM 0.84 | 9:35AM 1.31 | 11:08PM 0.90 | |||||||||||||||||||
Low Tide / height (m) | 4:12PM 0.21 | 4:39PM 0.28 | 2:53AM 0.74 | 4:59PM 0.37 | ||||||||||||||||||||
Friday 19 | Saturday 20 | Sunday 21 | Mon 22 | |||||||||||||||||||||
| Sunrise | - | 6:26 | - | - | - | - | - | - | - | 6:26 | - | - | - | - | - | - | - | 6:26 | - | - | - | - | - | - |
| Sunset | - | - | - | - | 6:37 | - | - | - | - | - | - | - | 6:37 | - | - | - | - | - | - | - | 6:37 | - | - | - |
 |  | |  | |  | | | | | | | |  | | | | | |  | | | | | |
Rain (mm) | 1 | - | - | 1 | 1 | - | - | - | - | - | - | 1 | 2 | - | - | - | - | - | 1 | - | 2 | 1 | - | 1 |
| Temp. °C | 26 | 27 | 30 | 31 | 29 | 27 | 27 | 26 | 26 | 27 | 30 | 29 | 29 | 28 | 27 | 26 | 26 | 27 | 29 | 30 | 28 | 27 | 27 | 26 |
| Feels °C (?) | 30 | 32 | 34 | 35 | 33 | 31 | 33 | 31 | 31 | 32 | 35 | 33 | 34 | 33 | 32 | 31 | 31 | 32 | 34 | 34 | 32 | 31 | 32 | 30 |
- Map Icons:
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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 Hainan
Continuing clean conditions at Riyue Bay (Riyuewan) (light winds from the ESE at Danxian 119 km from Riyue Bay (Riyuewan)). 0.9m 7s swell from the E to make surfable waves.
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