
Surf Forecasts:
Riyue Bay (Riyuewan) surf forecast from 7 Sep 2026:
- Best quality surf: Saturday 12 Sep, 2AM (local time) - 7.5ft (2.3m), 8s period, ENE swell with cross-offshore winds.
- Most powerful swell: Monday 14 Sep, 8AM (local time) - 6ft (1.9m), 12s period, E swell with 955 kJ wave energy.
- Next surfable swell (1★+): Thursday 10 Sep, 8PM (local time) - 3.5ft (1.0m), 6s 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 Thursday (Sep 10) at 8PM. The primary swell is predicted to be 1.0m and 6s period with a secondary swell of 0.4m and 7s. Another secondary swell of 0.1m and 12s is also forecast. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Riyue Bay (Riyuewan) in the next 16 days are 1.9m 12s and forecast to arrive on Monday (Sep 14) at 8AM. Winds are predicted to be cross-offshore at the time the swell arrives.
| Wave Type | Time (CST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 8PM (Thu 10th Sep) | 3.5ft (1.0m) 6s |
| Best Surf | 2AM (Sat 12th Sep) | 7.5ft (2.3m) 8s |
| Most Powerful | 8AM (Mon 14th Sep) | 6ft (1.9m) 12s |
Table - best surf conditions forecast for Riyue Bay (Riyuewan) over the next 16 days.
The Lowdown
G’day, Rusty here. Let’s talk about Riyue Bay (Riyuewan). It’s a point break that’s fairly consistent and exposed to the swell, but it’s a beginner-friendly wave. The water’s sitting at 80°, which is more than 4 degrees colder than usual for this time of year – that’s a notable chill, so you might want a spring suit.
Right now, and for the next few days, it’s pretty flat and messy. Monday the 7th has tiny 2ft S swell with a short 8-second period, and the energy’s weak at 72. There’s a risk of thunderstorms and glassy conditions in the morning, but the surf’s poor. Tuesday and Wednesday are similar – tiny waves, poor conditions, and cross-shore winds. The first real pulse comes in on Thursday the 10th afternoon, when a 3ft ENE swell pushes in with a 6-second period, and the wind turns cross-offshore, making it clean. But the energy’s still low at 70, and it’s marginal at best.
Friday the 11th morning sees the swell bump to 5ft from the ENE, with the energy jumping to 259 (moderate now). The wind’s cross-offshore in the afternoon, giving clean waves, but it’s still a marginal forecast. Saturday the 12th is the standout. The swell hits 7ft to 7ft from the ENE, with a 9-second period, and the energy is strong at 985 to 1105. The wind is cross-offshore and clean both morning and afternoon. This is the best on offer – a solid, clean groundswell for a point break like this, where the longer period (9 seconds) will shape up nicely. Crowds are possible sometimes, so get out early. It’s a good size for beginners and intermediates, but not too big.
Sunday the 13th drops back to 4ft and 4ft, still clean but with risk of thunderstorms. The energy falls to 303 and 245. Monday the 14th has a bigger 6ft to 7ft E swell, period up to 11 seconds, and energy at 850 to 1116, but the wind is cross-offshore and strong (22-25 mph), and the conditions are only marginal. Tuesday the 15th morning sees 8ft E swell with a 34 mph offshore wind – that’s near gale force, making it near impossible to paddle into, and only for experts. The afternoon hits 10ft, but the wind is still strong. Wednesday the 16th is a write-off: 10ft and 8ft E swell, but the wind is cross-shore and gale-force, creating a messy, dangerous sea. The energy is through the roof at 3566, but it’s a kite-surfing show, not a paddle one.
After that, the swell drops fast. Thursday the 17th and Friday the 18th have tiny 2ft to 3ft swells, mostly poor conditions, with a brief clean window Friday morning. Saturday the 19th and Sunday the 20th have 3ft to 3ft SSE swells, but the wind is cross or cross-on, and the energy is low. From Monday the 21st onward, it’s barely 1ft or less – the surf’s essentially gone for the rest of the forecast.
So, if you’re keen, make a move for Saturday the 12th: clean, cross-offshore winds, solid 7ft+ ENE swell, and the point should be working well. It’s the only real standout in the whole 16 days.
Rusty.
Short Range ForecastModerate rain (total 19mm), heaviest on Mon afternoon. Warm (max 30°C on Wed morning, min 25°C on Tue night). Wind will be generally light. | Days 4-6 Weather SummaryModerate rain (total 16mm), heaviest on Thu afternoon. Warm (max 30°C on Sat afternoon, min 23°C on Fri night). Wind will be generally light. | ||||||||||||||||||||
Monday 7 | Tuesday 8 | Wednesday 9 | Thursday 10 | Friday 11 | Saturday 12 | Sunday 13 | |||||||||||||||
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) | S 8 | S 8 | S 7 | S 8 | S 7 | S 8 | S 7 | S 7 | S 7 | S 8 | ENE 6 | ENE 7 | ENE 8 | ENE 8 | ENE 8 | ENE 9 | ENE 9 | E 9 | ENE 9 | ENE 9 | ENE 9 |
Wave Graph | |||||||||||||||||||||
61 | 57 | 40 | 41 | 39 | 42 | 39 | 27 | 27 | 31 | 50 | 195 | 250 | 277 | 739 | 603 | 686 | 380 | 283 | 227 | 326 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | glassy | on | glassy | cross-on | cross-on | glassy | cross | cross | cross-off | cross | cross-off | cross-off | cross | cross-off | cross-off | cross-off | cross-off | off | cross-off | cross-off | off |
High Tide | 6:34AM1.52m | 7:49AM1.52m | 8:54AM1.49m | 11:36PM0.81m | 9:52AM1.42m | 11:31PM0.89m | 10:46AM1.31m | 11:39PM1.00m | 11:39AM1.17m | 11:53PM1.11m | |||||||||||
Low Tide | 3:02PM0.10m | 3:49PM0.08m | 4:27PM0.11m | 4:58PM0.19m | 2:54AM0.72m | 5:23PM0.30m | 4:13AM0.62m | 5:40PM0.42m | 5:18AM0.53m | 5:51PM0.54m | |||||||||||
6:24 | — | — | 6:24 | — | — | 6:24 | — | — | 6:24 | — | — | 6:24 | — | — | 6:26 | — | — | 6:26 | — | — | |
— | 6:49 | — | — | 6:47 | — | — | 6:46 | — | — | 6:45 | — | — | 6:45 | — | — | 6:44 | — | — | 6:44 | — | |
mm | 1 | 8 | 1 | 1 | 5 | 1 | — | 2 | — | 2 | 5 | 3 | 1 | 5 | — | — | — | — | — | 2 | — |
Temp °C | 28 | 29 | 27 | 29 | 28 | 27 | 30 | 29 | 27 | 27 | 28 | 25 | 27 | 27 | 25 | 29 | 30 | 26 | 30 | 29 | 27 |
Feels °C | 33 | 34 | 32 | 34 | 33 | 32 | 33 | 31 | 31 | 29 | 30 | 27 | 27 | 27 | 26 | 29 | 30 | 27 | 30 | 30 | 27 |
Swell 1 Height (m) Direction Period (s) | S 8 | S 8 | S 7 | S 8 | S 7 | S 8 | S 7 | S 7 | S 7 | S 8 | S 7 | E 7 | S 7 | S 8 | ENE 8 | ENE 9 | ENE 9 | E 9 | ENE 9 | ENE 9 | ENE 9 |
61 | 57 | 40 | 41 | 39 | 42 | 39 | 27 | 27 | 31 | 17 | 126 | 9 | 10 | 432 | 374 | 413 | 380 | 283 | 227 | 326 | |
Swell 2 Height (m) Direction Period (s) | ENE 10 | ENE 10 | ENE 10 | NE 8 | NE 7 | NE 7 | E 9 | E 9 | E 9 | E 8 | E 12 | S 7 | — | E 18 | S 7 | S 6 | S 6 | S 8 | E 15 | E 15 | ESE 14 |
9 | 9 | 9 | 2 | 2 | 2 | 2 | 2 | 2 | 1 | 3 | 8 | — | 6 | 4 | 3 | 1 | 1 | 17 | 17 | 63 | |
Swell 3 Height (m) Direction Period (s) | NE 7 | — | — | E 9 | E 9 | E 9 | NE 6 | — | E 9 | — | — | — | — | — | E 18 | E 16 | E 16 | E 16 | SE 8 | S 6 | — |
2 | — | — | 2 | 2 | 2 | 2 | — | 2 | — | — | — | — | — | 6 | 5 | 5 | 5 | 3 | 1 | — | |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | ENE 3 | E 4 | E 5 | ENE 6 | ENE 7 | ENE 8 | ENE 8 | ENE 8 | ENE 9 | ENE 9 | — | — | — | — |
— | — | — | — | — | — | — | 7 | 9 | 16 | 50 | 195 | 250 | 277 | 739 | 603 | 686 | — | — | — | — | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 37 | 75 | 75 | 1157 | 1248 | 75 | 1079 | 1078 | 1079 | 717 | 1078 | 0 | 576 | 621 | 0 | 715 | 843 | 0 | 715 | 1075 | 0 |
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.










