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Surf Forecasts:
Riyue Bay (Riyuewan) surfForecast / Hainan / China
48hr Weather and Surf, issued 1 pm Monday 15 Dec 2025 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
24.9° C
(Which is slightly warmer than usual)How big are the waves at Riyue Bay (Riyuewan) today?
The current surf forecast for Riyue Bay (Riyuewan) at 8PM is: 3.0m 11s primary swell from a East-northeast direction and 2.3m 11s secondary swell from a East direction (forecast issued at 01:00pm December 15). The wind direction is predicted to be cross-offshore and the swell rating is 4.
| Time (CST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (15 Dec) | 8ft (2.5m) | 10s |
| Afternoon (15 Dec) | 8ft (2.5m) | 10s |
| Evening (15 Dec) | 10ft (3.0m) | 11s |
Table - waves today at Riyue Bay (Riyuewan). (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Monday 15 | Tuesday 16 | Wednesday 17 | Thursday 18 | |||||||||||||||||||||
| 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 | |
Rating (10 max) | ||||||||||||||||||||||||
Swell Height Map |    |    |    |    | ||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||
| Period(s) (?) | 10 | 10 | 10 | 11 | 11 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 1205 | 1351 | 1682 | 1782 | 1841 | 1749 | 1568 | 1402 | 1300 | 951 | 938 | 919 | 900 | 1086 | 940 | 900 | 791 | 567 | 575 | 562 | 708 | 692 | 692 | 708 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross- off | cross- off | cross- off | cross- off | cross- off | cross | cross- off | cross- off | cross | cross | cross | cross | cross | cross- off | cross- off | cross- off | cross- off | cross | cross | cross- off | cross- off | cross- off | cross- off | cross- off |
High Tide / height (m) | 7:06PM 1.24 | 7:27PM 1.32 | 7:52PM 1.40 | |||||||||||||||||||||
Low Tide / height (m) | 3:29AM 0.46 | 4:06AM 0.33 | 4:41AM 0.22 | |||||||||||||||||||||
Monday 15 | Tuesday 16 | Wednesday 17 | Thursday 18 | |||||||||||||||||||||
| Sunrise | - | - | - | - | - | - | - | 7:03 | - | - | - | - | - | - | - | 7:03 | - | - | - | - | - | - | - | 7:03 |
| Sunset | - | - | 6:04 | - | - | - | - | - | - | - | 6:04 | - | - | - | - | - | - | - | 6:05 | - | - | - | - | - |
 | |  |  |  | |  |  |  | | | | | |  |  | | | | |  | | | | |
Rain (mm) | - | - | - | - | 1 | 1 | 1 | 1 | 1 | 2 | 1 | 1 | 1 | - | - | - | - | - | - | - | - | - | - | - |
| Temp. °C | 20 | 21 | 22 | 21 | 21 | 21 | 21 | 22 | 23 | 23 | 23 | 23 | 23 | 22 | 22 | 21 | 23 | 25 | 23 | 21 | 20 | 20 | 20 | 20 |
| Feels °C (?) | 19 | 20 | 22 | 22 | 22 | 22 | 22 | 23 | 24 | 23 | 23 | 24 | 24 | 23 | 22 | 21 | 21 | 22 | 21 | 19 | 20 | 20 | 20 | 19 |
- 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)
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