Surf Forecasts:
Riyue Bay (Riyuewan) surf forecast from 29 Aug 2026:
- Best quality surf: Monday 31 Aug, 11PM (local time) - 6ft (1.9m), 7s period, SW swell with cross-offshore winds.
- Most powerful swell: Tuesday 1 Sep, 8AM (local time) - 7ft (2.1m), 8s period, WSW swell with 547 kJ wave energy.
- Next surfable swell (1★+): Saturday 29 Aug, 8PM (local time) - 3.5ft (1.1m), 9s period with S 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 Saturday (Aug 29) at 8PM. The primary swell is predicted to be 1.1m and 9s period with a secondary swell of 0.2m and 13s. Another secondary swell of 1.0m and 6s 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 2.1m 8s and forecast to arrive on Tuesday (Sep 01) at 8AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.3m 6s period and expected on Saturday (Aug 29) at 5PM.
| Wave Type | Time (CST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 8PM (Sat 29th Aug) | 3.5ft (1.1m) 9s |
| Best Surf | 11PM (Mon 31st Aug) | 6ft (1.9m) 7s |
| Most Powerful | 8AM (Tue 1st Sep) | 7ft (2.1m) 8s |
Table - best surf conditions forecast for Riyue Bay (Riyuewan) over the next 16 days.
The Lowdown
G’day, I’m Rusty. Let’s have a look at the surf ahead for Riyue Bay (Riyuewan).
Alright, straight up, this outlook is pretty bleak. We’ve got a long stretch ahead with very little to get excited about. There’s a small window around Tuesday the 1st of September that stands out as the one true highlight, but before that, and for days after, it’s mostly flat or messy.
The water is sitting at 82°F, which is a bit colder than what we’d normally expect for this time of year – not crazy, but noticeable when you first jump in.
The whole first weekend and Monday are a write-off. Saturday the 29th and Sunday the 30th of August bring weak 3ft to 4ft swell from the south and southwest, but the wind is cross-off or cross, and the wave energy is low (139-301). The comments say poor or marginal, and I’m not going to argue. Monday the 31st is just as bad.
Now, Tuesday the 1st of September is the standout. The morning brings a pulse of 6ft swell from the west-southwest, with a cross-off wind from the west at only 6 mph. The combined energy jumps up to a moderate 529, and the report says “expect good surf conditions.” That’s the pick of the fortnight. It’s not huge, but it’s clean, and for a beginner-friendly point break like this, it’ll be fun and user-friendly. Crowds are possible here sometimes, but on a Tuesday morning, you might get a sneaky session.
After that, it drops off a cliff. From Wednesday the 2nd of September all the way through to Friday the 12th of September, the swell plummets to 1.0ft to 3ft, with combined energy mostly below 100. Winds are light or glassy at times, which is nice, but there’s simply no power. A few of those early September mornings look glassy and clean, but with wave heights barely a ripple, you’re better off waxing your board for another day. There is a very small uptick on Saturday the 13th and Sunday the 14th of September with 2ft to 3ft southerly swell and clean conditions, but it’s still feeble (energy around 96-124) – ordinary at best.
If you’re a kiter, this window of light winds and tiny swell might actually be more interesting. For paddle surfing, keep an eye on that Tuesday morning, 1st of September – that’s your best and really only true shot.
Rusty.
Short Range ForecastHeavy rain (total 31mm), heaviest during Sun night. Warm (max 32°C on Sat morning, min 25°C on Mon night). Wind will be generally light. | Days 4-6 Weather SummaryHeavy rain (total 35mm), heaviest during Tue night. Warm (max 30°C on Wed afternoon, min 24°C on Tue night). Wind will be generally light. | ||||||||||||||||||||
Saturday 29 | Sunday 30 | Monday 31 | Tuesday 1 | Wednesday 2 | Thursday 3 | Friday 4 | |||||||||||||||
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 8 | S 8 | SW 7 | S 8 | S 8 | SW 7 | S 9 | WSW 8 | WSW 6 | S 9 | S 8 | S 8 | S 8 | S 7 | S 8 | S 8 | S 7 | S 8 | S 9 |
Wave Graph  | |||||||||||||||||||||
 kJ | 124 | 130 | 169 | 105 | 158 | 113 | 84 | 79 | 146 | 383 | 130 | 96 | 31 | 19 | 33 | 17 | 10 | 22 | 9 | 21 | 25 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | glassy | off | off | glassy | off | off | cross | off |
High Tide | 10:36AM1.39m | 00:19AM0.86m | 11:20AM1.30m | 00:26AM0.96m | 12:08PM1.17m | 00:40AM1.07m | 1:00PM1.02m | 1:00AM1.19m | 2:03PM0.86m | 1:26AM1.31m | 3:41PM0.72m | 2:02AM1.40m | 2:50AM1.46m | ||||||||
Low Tide | 6:08PM0.32m | 4:42AM0.66m | 6:22PM0.41m | 5:46AM0.58m | 6:32PM0.52m | 6:50AM0.51m | 6:36PM0.61m | 7:58AM0.44m | 6:32PM0.68m | 9:15AM0.38m | 6:00PM0.70m | 10:49AM0.32m | |||||||||
 |  |  |  | | | | |  | | |  | | |  | | | |  | | | |
 | 6:22 | — | — | 6:22 | — | — | 6:24 | — | — | 6:24 | — | — | 6:24 | — | — | 6:24 | — | — | 6:24 | — | — |
 | — | 6:55 | — | — | 6:54 | — | — | 6:54 | — | — | 6:53 | — | — | 6:52 | — | — | 6:52 | — | — | 6:51 | — |
mm | — | 1 | 5 | — | 2 | 14 | — | 4 | 5 | 6 | 12 | 17 | — | — | — | — | — | — | — | — | — |
Temp °C | 32 | 32 | 29 | 30 | 30 | 27 | 29 | 28 | 26 | 29 | 26 | 25 | 28 | 30 | 27 | 30 | 30 | 27 | 29 | 30 | 27 |
Feels °C | 34 | 34 | 34 | 33 | 33 | 31 | 31 | 32 | 29 | 33 | 30 | 29 | 31 | 34 | 31 | 32 | 33 | 31 | 31 | 33 | 31 |
Swell 1 Height (m) Direction Period (s) | S 8 | S 8 | S 8 | S 8 | S 8 | S 8 | S 8 | S 8 | S 9 | SW 8 | S 8 | S 9 | S 8 | S 8 | S 8 | S 7 | S 8 | S 8 | S 7 | S 8 | S 9 |
| kJ | 124 | 130 | 169 | 105 | 136 | 113 | 84 | 71 | 146 | 74 | 115 | 96 | 31 | 18 | 33 | 17 | 10 | 22 | 9 | 21 | 25 |
Swell 2 Height (m) Direction Period (s) | E 13 | E 13 | E 12 | E 12 | E 12 | E 12 | E 13 | E 13 | E 13 | S 8 | SW 6 | SW 7 | NE 7 | ENE 7 | ENE 7 | NE 7 | ENE 7 | SW 6 | ENE 7 | ENE 6 | WSW 5 |
| kJ | 13 | 13 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 69 | 10 | 18 | 25 | 19 | 19 | 11 | 4 | 5 | 4 | 4 | 3 |
Swell 3 Height (m) Direction Period (s) | E 9 | — | — | E 15 | E 15 | E 10 | — | E 11 | — | E 12 | E 12 | ENE 6 | SW 7 | E 9 | SW 6 | SW 5 | SW 6 | ENE 6 | SW 4 | E 12 | E 12 |
| kJ | 2 | — | — | 4 | 4 | 2 | — | 2 | — | 3 | 3 | 3 | 7 | 2 | 9 | 1 | 1 | 4 | 1 | 11 | 12 |
Wind waves Height (m) Direction Period (s) | SW 4 | SW 6 | WSW 7 | SW 7 | SW 7 | SW 8 | SW 7 | SW 7 | WSW 8 | WSW 8 | WSW 6 | — | — | SW 6 | — | — | SSW 3 | — | — | SSW 3 | — |
| kJ | 16 | 116 | 29 | 57 | 158 | 86 | 75 | 79 | 106 | 383 | 130 | — | — | 6 | — | — | 1 | — | — | 2 | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 576 | 1173 | 736 | 0 | 349 | 0 | 576 | 576 | 0 | 0 | 0 | 0 | 576 | 1183 | 75 | 930 | 1183 | 75 | 1157 | 1092 | 75 |
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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