Surf Forecasts:
Riyue Bay (Riyuewan) surf forecast from 20 Jul 2026:
- Best quality surf: Monday 27 Jul, 11PM (local time) - 2.5ft (0.7m), 11s period, E swell with glassy winds.
- Most powerful swell: Tuesday 28 Jul, 2AM (local time) - 2.5ft (0.8m), 10s period, E swell with 138 kJ wave energy.
- Next surfable swell (1★+): Monday 27 Jul, 11PM (local time) - 2.5ft (0.7m), 11s period with E swell.
Best Forecast Surf Conditions for Riyue Bay (Riyuewan) this week:
The surf forecast for Riyue Bay (Riyuewan) over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Monday (Jul 27) at 11PM. The primary swell is predicted to be 0.7m and 11s period with a secondary swell of 0.5m and 7s. The wind is predicted to be glassy as the swell arrives.
The most powerful waves expected at Riyue Bay (Riyuewan) in the next 16 days are 0.8m 10s and forecast to arrive on Tuesday (Jul 28) 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 0.3m 5s period and expected on Tuesday (Jul 21) at 2AM.
| Wave Type | Time (CST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 11PM (Mon 27th Jul) | 2.5ft (0.7m) 11s |
| Best Surf | 11PM (Mon 27th Jul) | 2.5ft (0.7m) 11s |
| Most Powerful | 2AM (Tue 28th Jul) | 2.5ft (0.8m) 10s |
Table - best surf conditions forecast for Riyue Bay (Riyuewan) over the next 16 days.
The Lowdown
Alright, this is Rusty, checking in with the local outlook.
It’s gonna be a quiet stretch for Riyue Bay for a while, I’m not gonna lie. The first week and a half is a real struggle. We’re looking at a long dry spell from Tuesday the 21st of July all the way through to the end of the month. The waves are just too small and the wind is mostly a cross or cross-onshore chop, making for nothing but poor surf conditions with scores of zero across the board. The combined swell energy is weak, barely hitting three digits (78) on Tuesday afternoon, and mostly sitting in the 30s and 40s for the rest of that week. It’s not a good look for a paddle.
There is a tiny glimmer of hope on the horizon. On Tuesday the 28th of July, we finally get a bit of a pulse. The morning session is looking interesting with a glassy wind state, which is a major positive. You’ll see a 3ft swell coming from the east at a 10-second period, and the combined energy climbs to a moderate 177. It’s still only a 1 out of 10 score and described as “surfable waves but very ordinary conditions,” but compared to the rest of the forecast, that’s the best on offer. The issue is the swell direction is east, but this spot (Riyue Bay (Riyuewan)) is a point break that really needs NE swell for the best shape. This east groundswell will still wrap in, but it might not be as lined up as we’d like. For a beginner-friendly spot, the 3ft height is fine, but it’s nothing to get excited about.
After that, the rest of the window falls back into the same pattern. We’ve got a few days in early August where the swell picks up a little to 3ft from the SSE, and the wind is a clean cross-off on the 5th of August, but the period is short and the energy is still weak. It’s a frustrating run for this area. If you’re a kite surfer, the consistent cross-shore winds on the bigger days might be more interesting than the paddle surfing.
Signing off, Rusty.
Short Range ForecastMostly dry. Warm (max 32°C on Tue afternoon, min 27°C on Mon night). Wind will be generally light. | Days 5-7 Weather SummaryLight rain (total 4mm), mostly falling on Thu night. Warm (max 31°C on Sun afternoon, min 26°C on Fri night). Wind will be generally light. | ||||||||||||||||||
Tuesday 21 | Wednesday 22 | Thursday 23 | Friday 24 | Saturday 25 | Sunday 26 | ||||||||||||||
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) | S 7 | S 6 | SSE 6 | SSE 6 | SSE 6 | SSE 6 | SSE 6 | SSE 6 | SSE 6 | SSE 6 | SSE 5 | S 6 | SSE 7 | S 6 | SSE 5 | SSE 7 | SSE 7 | S 7 | S 7 |
Wave Graph  | |||||||||||||||||||
 kJ | 77 | 76 | 58 | 55 | 40 | 37 | 40 | 43 | 34 | 40 | 51 | 40 | 53 | 34 | 30 | 37 | 37 | 34 | 23 |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-on | cross | cross | cross | cross-on | cross | cross-on | cross-on | cross-on | cross-on | on | glassy | cross-on | on | glassy | cross-on | cross-on | cross-off |
High Tide | 3:48AM1.07m | 2:58PM0.86m | 4:13AM1.17m | 4:32PM0.69m | 4:42AM1.25m | 5:18AM1.31m | 6:01AM1.36m | 6:50AM1.40m | |||||||||||
Low Tide | 8:52PM0.48m | 10:07AM0.71m | 8:47PM0.58m | 12:10PM0.61m | 8:15PM0.63m | 1:54PM0.49m | 2:58PM0.37m | 3:44PM0.28m | 4:24PM0.21m | ||||||||||
 |  |  | | | | | | |  |  | | | | | | | |  | |
 | — | 6:11 | — | — | 6:11 | — | — | 6:13 | — | — | 6:13 | — | — | 6:13 | — | — | 6:13 | — | — |
 | 7:17 | — | 7:17 | — | — | 7:17 | — | — | 7:16 | — | — | 7:16 | — | — | 7:16 | — | — | 7:15 | — |
mm | — | — | — | — | — | — | — | — | — | 2 | 1 | — | 1 | — | — | — | — | — | — |
Temp °C | 28 | 31 | 32 | 28 | 31 | 31 | 28 | 30 | 31 | 28 | 30 | 30 | 28 | 30 | 30 | 28 | 30 | 31 | 28 |
Feels °C | 30 | 33 | 33 | 31 | 33 | 32 | 31 | 33 | 34 | 32 | 34 | 33 | 33 | 34 | 33 | 34 | 34 | 34 | 33 |
Swell 1 Height (m) Direction Period (s) | S 7 | E 10 | E 10 | SSE 6 | SSE 6 | E 10 | SSE 6 | SSE 6 | SSE 6 | SSE 6 | SSE 5 | S 6 | SSE 7 | S 6 | SSE 5 | SSE 7 | SSE 7 | S 7 | S 7 |
| kJ | 77 | 2 | 2 | 55 | 40 | 2 | 40 | 43 | 34 | 40 | 51 | 39 | 53 | 34 | 30 | 37 | 37 | 34 | 23 |
Swell 2 Height (m) Direction Period (s) | E 10 | — | WSW 5 | E 10 | E 10 | — | E 10 | E 10 | E 10 | E 9 | E 9 | E 4 | E 9 | E 4 | E 10 | E 10 | E 10 | E 10 | E 6 |
| kJ | 2 | — | 2 | 2 | 2 | — | 2 | 2 | 2 | 2 | 2 | 4 | 2 | 6 | 8 | 8 | 2 | 7 | 3 |
Swell 3 Height (m) Direction Period (s) | — | — | E 10 | — | — | — | — | — | — | — | — | E 9 | — | E 10 | E 10 | — | E 6 | E 6 | E 10 |
| kJ | — | — | 2 | — | — | — | — | — | — | — | — | 2 | — | 8 | 8 | — | 1 | 1 | 2 |
Wind waves Height (m) Direction Period (s) | WSW 5 | S 6 | SSE 6 | — | — | SSE 6 | — | — | — | — | — | SSE 5 | ESE 4 | SE 5 | E 4 | ESE 4 | — | — | — |
| kJ | 5 | 76 | 58 | — | — | 37 | — | — | — | — | — | 40 | 9 | 3 | 10 | 6 | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 75 | 1173 | 1763 | 1078 | 1173 | 1173 | 75 | 1157 | 1157 | 75 | 881 | 1763 | 1246 | 1243 | 1243 | 1373 | 1075 | 1246 | 717 |
Best forecast wave conditions in Hainan | |||||||||||||||||||
Best forecast wave conditions in China | |||||||||||||||||||
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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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