Riyue Bay (Riyuewan) Surf Break

Lat Long: 18.63° N 110.22° E

Riyue Bay (Riyuewan) Surf Forecast and Surf Report

Issued: 1 am 24 Jul 2026 (local time)

Forecast update in  hr  min

Today's Riyue Bay (Riyuewan) sea temperature is
26.9° C
2.2° 

Riyue Bay (Riyuewan) surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.


Riyue Bay (Riyuewan) surf forecast from 24 Jul 2026:

  • Best quality surf: Sunday 26 Jul, 8AM (local time) - 4ft (1.2m), 13s period, E swell with cross-offshore winds.
  • Most powerful swell: Sunday 26 Jul, 8AM (local time) - 4ft (1.2m), 13s period, E swell with 448 kJ wave energy.
  • Next surfable swell (1★+): Sunday 26 Jul, 5AM (local time) - 2.5ft (0.8m), 13s 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 26) at 5AM. The primary swell is predicted to be 0.8m and 13s period with a secondary swell of 0.6m and 8s. 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 1.2m 13s and forecast to arrive on Sunday (Jul 26) 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 0.2m 3s period and expected on Monday (Jul 27) at 8PM.

Wave TypeTime (CST) & Date Wave Height & Period
Next good surf (1 star+) 5AM (Sun 26th Jul)2.5ft (0.8m) 13s
Best Surf 8AM (Sun 26th Jul)4ft (1.2m) 13s
Most Powerful 8AM (Sun 26th Jul)4ft (1.2m) 13s

Table - best surf conditions forecast for Riyue Bay (Riyuewan) over the next 16 days.


The Lowdown

Alright, this is Rusty, and I’ve got a look at the coming swells for ya.

Right off the bat, I’ll be honest with you – the next few days at Riyue Bay (Riyuewan) are a write-off. Starting Friday, July 24th, and clear through to the morning of Sunday, July 26th, we’ve got nothing but tiny, weak, cross-onshore slop. The water is sitting at 80°, which is a solid 4° colder than normal for this time of year, so that’s a bit of a shock to the system if you’re getting in.

Then, on Sunday morning, July 26th, things finally wake up. We’ve got a 4ft east swell rolling in with a 12-second period, and the wind is a clean, light cross-offshore breeze. The energy is moderate, reading 459 (moderate wave energy). It’s not a monster, but it’s the first real sign of life. The swell direction is a bit off from the optimum NE, but that clean wind will make it rideable. The afternoon sees the wind shift onshore and the quality drops.

We then go back into a long, dry spell. From Sunday afternoon, July 26th, all the way through the morning of Wednesday, August 5th, it’s a desert. The wind is mostly cross or cross-on, and the wave heights are all under 4ft with short, weak periods. It’s just not worth the paddle.

Now, the real standout is the start of the second week. Thursday, August 6th, is the day to circle. The morning brings a glassy, dead-calm sea with a 4ft southerly swell. That glassy wind is a massive positive. The energy jumps to 394 (moderate wave energy). The afternoon pushes the swell to 5ft with a 9-second period, and the energy hits 511 (strong wave energy). The wind is clean cross-offshore. This is the best-looking window of the entire forecast. The swell is big enough for a good time but not too big for a confident beginner. The only thing to keep in mind is that the period is only 8-9 seconds, so it’s a bit of a short-period windswell style, not a long groundswell.

Friday, August 7th, looks similar, with clean 4ft waves and cross-offshore winds, energy around 375-391 (moderate wave energy). It’s a solid follow-up day.

Saturday, August 8th, is still decent, with 4ft surf and a 9-second period, but the wind is a bit more cross than cross-off, so it won’t be as flawless as Thursday.

So, to sum it up: the first week and a half is a total flop. The only real standout is Thursday, August 6th. That morning glass-off with a clean 4ft swell is the one to chase. Friday the 7th is a good backup. The rest of the window is a gamble with onshore winds and weak energy.

Rusty.

Short Range Forecast

Mostly dry. Warm (max 32°C on Sun afternoon, min 26°C on Fri night). Wind will be generally light.

Days 4-6 Weather Summary

Moderate rain (total 13mm), heaviest on Tue afternoon. Warm (max 32°C on Mon morning, min 25°C on Wed night). Wind will be generally light.

Friday
24
Saturday
25
Sunday
26
Monday
27
Tuesday
28
Wednesday
29
Thursday
30
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
0
0
0
0
0
0
2
0
0
0
0
0
0
0
1
0
0
2
0
0
0
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
0.9
SSE
6
0.8
SSE
6
0.6
SSE
6
0.6
SSE
5
0.6
S
8
0.6
S
8
1.2
E
12
1
E
11
0.5
ENE
10
0.9
S
8
1.1
S
9
1
S
8
1
S
9
1
S
8
0.9
SSE
8
0.8
SSE
8
0.8
SSE
9
1.1
E
9
1.1
ESE
8
1
ESE
7
0.9
S
9
Wave Graph
Metric surfscale
Energy kJ
52
40
24
20
48
44
409
247
55
108
177
144
158
147
120
94
103
194
128
114
130
Wind (km/h)
10
SSE
10
SE
5
SSW
10
SSW
10
SE
10
WSW
10
SW
15
SSW
15
SW
15
SW
20
SSW
10
S
5
S
10
ENE
0
E
10
ESE
10
ESE
5
NNE
10
E
10
E
5
S
Wind State
cross-on
on
glassy
cross
on
cross-off
cross-off
cross-on
cross
cross
cross
cross-on
cross-on
cross
glassy
on
cross-on
glassy
cross-on
cross-on
cross-on
High Tide
6:01AM1.36m
6:50AM1.40m
7:42AM1.45m
8:33AM1.49m
9:20AM1.53m
10:03AM1.54m
Low Tide
2:58PM0.37m
3:44PM0.28m
4:24PM0.21m
5:02PM0.16m
5:37PM0.13m
6:10PM0.12m
6:39PM0.13m
clear
clear
clear
clear
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
thunderstorm
part cloud
thunderstorm
thunderstorm
thunderstorm
light rain
part cloud
part cloud
thunderstorm
thunderstorm
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:13
6:13
6:13
6:13
6:13
6:15
6:15
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
7:16
7:16
7:15
7:15
7:15
7:15
7:15
 mm
4
4
2
2
1
3
16
Temp °C
30
31
27
30
31
28
30
32
28
32
32
29
30
30
27
28
27
26
29
28
26
Feels °C
34
34
31
34
34
34
33
35
32
34
34
34
34
34
31
32
31
31
33
32
30
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  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
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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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