Surf Forecasts:
Riyue Bay (Riyuewan) surf forecast from 18 Jul 2026:
- Most powerful swell: Monday 20 Jul, 2AM (local time) - 3.5ft (1.0m), 7s period, S swell with 106 kJ wave energy.
Best Forecast Surf Conditions for Riyue Bay (Riyuewan) this week:
The most powerful waves expected at Riyue Bay (Riyuewan) in the next 16 days are 1.0m 7s and forecast to arrive on Monday (Jul 20) at 2AM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.6m 4s period and expected on Saturday (Jul 18) at 5PM.
| Wave Type | Time (CST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | - | - |
| Best Surf | - | - |
| Most Powerful | 2AM (Mon 20th Jul) | 3.5ft (1.0m) 7s |
Table - best surf conditions forecast for Riyue Bay (Riyuewan) over the next 16 days.
Short Range ForecastMostly dry. Warm (max 32°C on Sat afternoon, min 26°C on Sat night). Wind will be generally light. | Days 4-6 Weather SummaryLight rain (total 6mm), mostly falling on Thu night. Warm (max 32°C on Tue afternoon, min 27°C on Tue night). Wind will be generally light. | ||||||||||||||||||||
Saturday 18 | Sunday 19 | Monday 20 | Tuesday 21 | Wednesday 22 | Thursday 23 | Friday 24 | |||||||||||||||
AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | |
Swell Height Map |  |  |  |  |  |  |  | ||||||||||||||
Wave Height (m) Direction Period (s) | SSE 6 | SSE 6 | SSE 6 | SSE 6 | S 6 | S 7 | S 7 | S 6 | SSE 7 | SSE 6 | S 6 | SSE 7 | SSE 6 | SSE 6 | SSE 6 | SSE 6 | SSE 6 | SSE 6 | SSE 6 | SSE 6 | S 6 |
Wave Graph  | |||||||||||||||||||||
 kJ | 55 | 68 | 68 | 64 | 73 | 106 | 89 | 78 | 82 | 66 | 71 | 73 | 55 | 53 | 68 | 51 | 39 | 72 | 45 | 43 | 38 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross | cross-on | cross-on | cross | cross | cross-on | cross-on | cross-on | cross-on | on |
High Tide | 12:25PM1.49m | 3:20AM0.84m | 1:13PM1.29m | 3:29AM0.95m | 2:02PM1.07m | 3:48AM1.07m | 2:58PM0.86m | 4:13AM1.17m | 4:32PM0.69m | 4:42AM1.25m | 5:18AM1.31m | ||||||||||
Low Tide | 8:26PM0.21m | 6:29AM0.78m | 8:44PM0.36m | 8:14AM0.76m | 8:52PM0.48m | 10:07AM0.71m | 8:47PM0.58m | 12:10PM0.61m | 8:15PM0.63m | 1:54PM0.49m | 2:58PM0.37m | ||||||||||
 | |  | | |  |  | | | | | | | |  |  | | | | | | |
 | 6:11 | — | — | 6:11 | — | — | 6:11 | — | — | 6:11 | — | — | 6:11 | — | — | 6:13 | — | — | 6:13 | — | — |
 | — | 7:17 | — | — | 7:17 | — | — | 7:17 | — | — | 7:17 | — | — | 7:17 | — | — | 7:16 | — | — | 7:16 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 | 1 | — | 4 | 1 | — | 3 |
Temp °C | 30 | 32 | 28 | 30 | 32 | 29 | 30 | 32 | 28 | 31 | 32 | 29 | 30 | 31 | 28 | 30 | 31 | 28 | 30 | 30 | 28 |
Feels °C | 32 | 34 | 31 | 32 | 33 | 32 | 32 | 33 | 31 | 33 | 32 | 32 | 32 | 33 | 32 | 33 | 33 | 33 | 34 | 33 | 33 |
Swell 1 Height (m) Direction Period (s) | SSE 6 | SSE 6 | SSE 6 | SSE 6 | E 10 | S 7 | E 10 | E 10 | SSE 7 | E 10 | E 10 | SSE 7 | SSE 6 | SSE 6 | SSE 6 | SSE 6 | SSE 6 | SSE 6 | SSE 6 | E 9 | S 6 |
| kJ | 55 | 68 | 68 | 64 | 2 | 106 | 2 | 2 | 82 | 2 | 2 | 73 | 55 | 53 | 68 | 51 | 39 | 41 | 45 | 2 | 38 |
Swell 2 Height (m) Direction Period (s) | E 9 | E 10 | E 10 | E 10 | E 10 | E 10 | E 10 | E 10 | E 10 | — | E 10 | E 10 | E 10 | E 10 | E 10 | E 10 | E 10 | E 9 | E 9 | E 9 | ESE 4 |
| kJ | 2 | 2 | 2 | 2 | 8 | 2 | 2 | 2 | 2 | — | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 7 | 3 |
Swell 3 Height (m) Direction Period (s) | — | E 10 | — | — | — | — | — | — | — | — | E 10 | — | — | — | — | — | — | W 5 | — | E 9 | E 9 |
| kJ | — | 8 | — | — | — | — | — | — | — | — | 2 | — | — | — | — | — | — | 1 | — | 2 | 2 |
Wind waves Height (m) Direction Period (s) | SW 5 | SW 4 | — | — | S 6 | — | S 7 | S 6 | — | SSE 6 | S 6 | — | — | — | — | — | — | SSE 6 | — | SSE 6 | — |
| kJ | 1 | 10 | — | — | 73 | — | 89 | 78 | — | 66 | 71 | — | — | — | — | — | — | 72 | — | 43 | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 1309 | 1610 | 1090 | 1157 | 75 | 1090 | 2050 | 1173 | 1084 | 1173 | 1173 | 1078 | 1157 | 1079 | 75 | 1079 | 1079 | 1157 | 1157 | 1157 | 1237 |
Best forecast wave conditions in Hainan | |||||||||||||||||||||
Best forecast wave conditions in China | |||||||||||||||||||||
Header Global | |||||||||||||||||||||
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Information about the Riyue Bay (Riyuewan) Surf forecast
The above surf forecast table for Riyue Bay (Riyuewan) provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Riyue Bay (Riyuewan) can be found by selecting the local surf guide option on the grey menu. Our Riyue Bay (Riyuewan) surf forecast is unique since it includes wave energy (power) that defines the real feel of the surf rather than just the height or the period. If you surf the same spot (Riyue Bay (Riyuewan)) regularly then make a mental note of the wave energy from the surf forecast table each time you go. Very soon you may start to choose your surf days based on the wave energy alone combined with our forecast of favourable offshore wind conditions. Our star ratings will help here and of course you will also find the usual wave height and period predictions on our surf forecasts as well as a full break down of the swell components under our advanced users option (to reveal that, click the little Einstein character under the tide times).
Further information to help with frequently asked questions about our surf forecast for Riyue Bay (Riyuewan) may be found under the help tab on the top menu and also by moving your mouse over the question marks on the surf forecast table itself. Please always bear in mind that the forecast is for near-shore open water and local factors at each surf break influence the actual breaking wave height, such as the beach / reef profile, water depths offshore and shelter.
Are you planning a holiday in Hainan? If you are looking for accommodation near Riyue Bay (Riyuewan), camping, hotels and holiday cottages in Hainan, consider staying in Wanning which is 26 km (16 miles) away. Other places in and around Hainan where you can find information about places to rent, and car hire include Li-an which is 27 km (17 miles) away, Baoding, Bacun and Baimalingcaifachang.
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