Riyue Bay (Riyuewan) surfForecast / Hainan / China

information circle16 Day Weather and Surf, issued 7 pm Tuesday 19 May 2026 CST
Forecast update in hr  min  s Forecast update imminent
Riyue Bay (Riyuewan) surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Riyue Bay (Riyuewan) sea temperature is
28.9° C
(Which is normal for this time of year)

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 Wednesday (May 20) at 8PM. The primary swell is predicted to be 1.6m and 7s period with a secondary swell of 1.4m and 7s. Another secondary swell of 0.6m and 9s is also forecast. 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 1.7m 7s and forecast to arrive on Thursday (May 21) at 2PM. Winds are predicted to be cross-shore at the time the swell arrives.

Wave TypeTime (CST) & Date Wave Height & Period
Next good surf (1 star+) 8PM (Wed 20th May)5ft (1.6m) 7s
Best Surf 8PM (Wed 20th May)5ft (1.6m) 7s
Most Powerful 2PM (Thu 21st May)5.5ft (1.7m) 7s

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


Updates in  hr  min  s Forecast update imminent

Short Range Forecast

Heavy rain (total 56mm), heaviest during Thu morning. Warm (max 30°C on Fri morning, min 26°C on Tue night). Wind will be generally light.

Days 5-7 Weather Summary

Mostly dry. Warm (max 31°C on Sun afternoon, min 27°C on Fri night). Wind will be generally light.

Wednesday
20
Thursday
21
Friday
22
Saturday
23
Sunday
24
Monday
25
Tue
26
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Rating
(10 max)
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
1.2
S
6
1.4
S
6
1.3
S
7
1.3
S
7
1.5
S
7
1.5
S
7
1.3
S
7
1.3
S
7
1.3
S
7
1.1
S
6
1
S
6
1
S
6
1
S
6
1.1
S
6
1.1
S
6
1
S
6
1.2
S
6
1.1
S
6
0.9
SSE
6
0.9
SSE
6
1
S
6
Wave Graph
Metric surfscale
Energy kJ
112
156
159
159
217
236
166
157
161
94
74
79
76
80
89
78
104
94
68
59
67
Wind (km/h)
20
S
20
SW
10
SSW
15
S
20
S
15
S
15
SSW
15
SSW
20
SSW
15
SSW
15
S
15
SSW
15
SSW
15
SSW
15
S
15
SSW
15
SSW
15
S
15
SW
15
SSW
15
SSW
cross-on
cross
cross
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross
cross
cross-on
High Tide
11:39AM1.76m
12:31PM1.69m
1:25PM1.57m
2:22PM1.40m
3:28PM1.22m
7:57AM0.95m
4:52PM1.03m
7:42AM1.04m
6:37PM0.88m
Low Tide
8:47PM-0.09m
9:46PM-0.01m
10:40PM0.10m
11:27PM0.22m
00:02AM0.35m
11:44AM0.90m
00:27AM0.47m
1:58PM0.74m
thunderstorm
thunderstorm
thunderstorm
mod rain
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
part cloud
part cloud
part cloud
clear
clear
clear
clear
clear
clear
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:03
6:03
6:03
6:03
6:01
6:01
6:01
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
7:07
7:07
7:07
7:07
7:07
7:07
7:08
7:08
10
5
2
7
16
9
3
3
1
Temp °C
27
27
27
27
28
29
28
30
30
28
30
30
28
30
31
28
31
31
28
31
32
31
30
31
31
31
33
33
33
33
33
33
33
33
33
34
33
34
34
33
34
35
Swell 1
Height (m)
Direction
Period (s)
0.7
E
8
0.6
E
9
0.6
E
9
0.5
E
9
0.5
E
9
1.5
S
7
0.4
ENE
9
1.3
S
7
0.3
E
10
1
S
6
0.3
E
10
0.3
E
10
0.3
E
10
0.3
E
10
0.3
E
10
0.3
E
10
0.3
E
10
0.3
E
10
0.9
SSE
6
0.9
SSE
6
0.3
E
10
Energy kJ
60
57
61
43
42
236
27
157
16
81
16
17
17
17
17
16
16
16
68
59
16
Swell 2
Height (m)
Direction
Period (s)
0.4
ENE
9
0.3
E
9
0.3
E
9
0.4
ENE
10
0.3
E
9
0.3
E
9
0.3
ENE
10
Energy kJ
28
14
16
31
16
15
18
Swell 3
Height (m)
Direction
Period (s)
Energy kJ
Wind waves
Height (m)
Direction
Period (s)
1.2
S
6
1.4
S
6
1.3
S
7
1.3
S
7
1.5
S
7
1.3
S
7
1.3
S
7
1.1
S
6
1
S
6
1
S
6
1
S
6
1.1
S
6
1.1
S
6
1
S
6
1.2
S
6
1.1
S
6
1
S
6
Energy kJ
112
156
159
159
217
166
161
94
74
79
76
80
89
78
104
94
67
Nearest Offshore or Glassy
Rating
(10 max)
2
2
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
Distance (km)
1173
347
347
1173
347
347
349
347
359
1173
359
1183
1157
349
1183
1157
349
1183
75
362
1183
Best forecast wave conditions in Hainan
Rating
(10 max)
1
Best forecast wave conditions in China
Rating
(10 max)
1
Header Global
Rating
(10 max)
4
5
5
4
4
4
4
5
5
7
5
5
9
6
5
5
4
4
4
4
4
  • Map Icons:
  • Break
  • 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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