Surf Forecasts:
Riyue Bay (Riyuewan) surf forecast from 11 Jul 2026:
- Best quality surf: Sunday 12 Jul, 8AM (local time) - 3.5ft (1.0m), 14s period, E swell with cross-offshore winds.
- Most powerful swell: Sunday 12 Jul, 5AM (local time) - 3.5ft (1.1m), 15s period, E swell with 510 kJ wave energy.
- Next surfable swell (1★+): Sunday 12 Jul, 8AM (local time) - 3.5ft (1.0m), 14s 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 Sunday (Jul 12) at 8AM. The primary swell is predicted to be 1.0m and 14s period with a secondary swell of 0.9m and 8s. 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 1.1m 15s and forecast to arrive on Sunday (Jul 12) at 5AM. 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 Friday (Jul 17) at 2PM.
| Wave Type | Time (CST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 8AM (Sun 12th Jul) | 3.5ft (1.0m) 14s |
| Best Surf | 8AM (Sun 12th Jul) | 3.5ft (1.0m) 14s |
| Most Powerful | 5AM (Sun 12th Jul) | 3.5ft (1.1m) 15s |
Table - best surf conditions forecast for Riyue Bay (Riyuewan) over the next 16 days.
Alright, let’s break it down in feet and miles per hour.
This is Rusty, and we’re looking at Riyue Bay (Riyuewan) over the next sixteen days. The water temp here is about normal for this time of year—nothing out of the ordinary.
This Sunday, July 12th, is quiet. Swell around 2 to 3 feet from the east in the morning, light cross-shore wind, and weak energy (382). Afternoon brings thunderstorms possible, a little more size at 4 to 5 feet from the south-southwest, but the period drops to 8 seconds—short and bumpy. Not your best day.
Monday the 13th and Tuesday the 14th stay small: southerly swell around 3 to 4 feet, short period, cross-shore breeze. Energy drops to 161-207—pretty weak. Tuesday afternoon sees a bit more push at 5 to 6 feet from the south, with a moderate cross-offshore wind cleaning it up (431 energy), but still just marginal.
Wednesday the 15th through Saturday the 18th, it’s steady but unexciting. Swell stays 3 to 4 feet, southerly, 8-second period. Wind is cross or cross-off, keeping the surface clean but nothing firing. Energy stays in the 120-379 range.
Now, Sunday, July 19th – things start to pick up. Swell hits 4 to 5 feet from the southwest, period still short, but wind turns cross-offshore and light, energy jumps to 605. This is the first real standout.
Monday, July 20th is the big day. Morning sees 7 feet of swell from the southwest, 9-second period, cross-offshore wind at around 9 mph, and energy of 914 – that’s strong. Afternoon drops to 6 feet but still solid. This is for experienced surfers only—too big for beginners.
Tuesday the 21st and Wednesday the 22nd keep it going with swell around 4 to 5 feet, clean conditions, energy 377-673. Very good.
Thursday, July 23rd is a gem. Morning is glassy – no wind, swell 4 feet from the south. Afternoon is flat calm, glassy, 4 to 5 feet swell with a 9-second period. That’s a dream session.
Friday the 24th through the end (July 27th) fades again. Swell 3 to 5 feet, periods short, energy weak to moderate (134-327). A few clean windows, but nothing special.
Best bets: Monday July 20th for power, Thursday July 23rd for glass. Crowds are possible at this spot, so get there early on the good days.
Rusty.
Short Range ForecastHeavy rain (total 27mm), heaviest during Sat night. Warm (max 31°C on Tue morning, min 26°C on Sat night). Wind will be generally light. | Days 5-7 Weather SummarySome drizzle, heaviest during Thu night. Warm (max 31°C on Wed afternoon, min 27°C on Tue night). Wind will be generally light. | ||||||||||||||||||||
Sunday 12 | Monday 13 | Tuesday 14 | Wednesday 15 | Thursday 16 | Friday 17 | Sat 18 | |||||||||||||||
Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | |
Swell Height Map |  |  |  |  |  |  |  |  | |||||||||||||
Wave Height (m) Direction Period (s) | E 15 | E 14 | SSW 8 | S 8 | S 9 | S 8 | S 9 | S 8 | S 9 | S 8 | S 8 | S 8 | S 8 | S 8 | S 8 | S 8 | S 8 | S 8 | S 8 | S 8 | S 9 |
Wave Graph  | |||||||||||||||||||||
 kJ | 657 | 246 | 277 | 204 | 146 | 239 | 299 | 205 | 429 | 273 | 186 | 228 | 224 | 118 | 145 | 252 | 135 | 190 | 239 | 190 | 251 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross | cross | cross-off | cross | cross | cross | cross | cross-off | cross-off | cross-off | cross | cross-off | cross-off | cross | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off |
High Tide | 6:58AM1.59m | 7:54AM1.70m | 8:52AM1.77m | 9:49AM1.80m | 10:43AM1.76m | 11:35AM1.65m | 12:25PM1.49m | ||||||||||||||
Low Tide | 4:13PM0.02m | 5:06PM-0.09m | 5:56PM-0.14m | 6:43PM-0.12m | 7:24PM-0.05m | 7:59PM0.07m | |||||||||||||||
 |  |  | | | | |  | |  |  | | | | | | | | | | | |
 | — | 6:09 | — | — | 6:09 | — | — | 6:09 | — | — | 6:09 | — | — | 6:09 | — | — | 6:11 | — | — | 6:11 | — |
 | 7:19 | — | 7:19 | — | — | 7:19 | — | — | 7:19 | — | — | 7:19 | — | — | 7:19 | — | — | 7:19 | — | — | 7:17 |
mm | 9 | — | 5 | 2 | — | 2 | 6 | — | 3 | — | — | — | — | — | — | 1 | — | — | — | — | — |
Temp °C | 27 | 30 | 29 | 28 | 30 | 30 | 27 | 31 | 30 | 28 | 30 | 31 | 28 | 31 | 30 | 28 | 29 | 30 | 29 | 31 | 31 |
Feels °C | 30 | 35 | 33 | 32 | 34 | 34 | 32 | 34 | 33 | 32 | 31 | 33 | 31 | 32 | 32 | 32 | 30 | 32 | 31 | 32 | 32 |
Swell 1 Height (m) Direction Period (s) | E 15 | S 8 | E 13 | S 8 | S 9 | S 8 | S 9 | S 8 | S 9 | S 8 | S 8 | S 8 | S 8 | S 8 | S 8 | E 10 | S 8 | S 8 | S 8 | S 8 | S 9 |
| kJ | 657 | 113 | 119 | 204 | 146 | 239 | 299 | 205 | 429 | 273 | 186 | 228 | 224 | 118 | 145 | 2 | 135 | 190 | 239 | 190 | 251 |
Swell 2 Height (m) Direction Period (s) | S 8 | E 14 | SE 9 | E 12 | E 11 | E 11 | E 10 | E 9 | E 9 | E 9 | E 8 | E 10 | E 10 | E 10 | E 10 | — | E 11 | E 11 | E 11 | E 11 | E 11 |
| kJ | 111 | 246 | 3 | 25 | 10 | 2 | 2 | 2 | 2 | 2 | 1 | 2 | 2 | 2 | 2 | — | 2 | 2 | 2 | 2 | 2 |
Swell 3 Height (m) Direction Period (s) | — | E 14 | — | ENE 8 | SE 10 | SE 10 | — | — | — | — | E 10 | — | — | — | — | — | — | — | — | — | — |
| kJ | — | 4 | — | 6 | 4 | 4 | — | — | — | — | 2 | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | SW 6 | SW 6 | SSW 8 | WSW 5 | SW 5 | WSW 4 | WSW 5 | — | WSW 5 | — | SW 3 | SW 5 | WSW 6 | WSW 4 | WSW 5 | S 8 | SW 5 | SW 6 | SW 4 | SW 7 | SW 7 |
| kJ | 30 | 19 | 277 | 2 | 1 | 10 | 9 | — | 64 | — | 5 | 60 | 4 | 13 | 48 | 252 | 60 | 94 | 18 | 65 | 126 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 0 | 347 | 347 | 0 | 347 | 362 | 576 | 621 | 736 | 0 | 559 | 576 | 359 | 621 | 1090 | 621 | 1750 | 1610 | 621 | 576 | 621 |
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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