Riyue Bay (Riyuewan) surfForecast / Hainan / China

information circle16 Day Weather and Surf, issued 7 pm Monday 11 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
28.3° 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 Friday (May 15) at 2AM. The primary swell is predicted to be 1.0m and 6s period with a secondary swell of 0.4m and 9s. 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 1.5m 7s and forecast to arrive on Sunday (May 17) at 5PM. Winds are predicted to be cross-onshore at the time the swell arrives.

Wave TypeTime (CST) & Date Wave Height & Period
Next good surf (1 star+) 2AM (Fri 15th May)3.5ft (1.0m) 6s
Best Surf 2AM (Fri 15th May)3.5ft (1.0m) 6s
Most Powerful 5PM (Sun 17th May)5ft (1.5m) 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

Mostly dry. Warm (max 32°C on Thu morning, min 25°C on Mon night). Wind will be generally light.

Days 5-7 Weather Summary

Heavy rain (total 55mm), heaviest during Fri night. Warm (max 30°C on Fri morning, min 25°C on Fri night). Wind will be generally light.

Tuesday
12
Wednesday
13
Thursday
14
Friday
15
Saturday
16
Sunday
17
Mon
18
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Rating
(10 max)
1
0
0
0
0
0
0
0
0
1
1
0
1
1
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)
0.8
E
8
0.6
E
7
0.4
E
10
0.4
E
10
0.4
ENE
10
0.4
E
10
0.9
S
5
0.9
SSE
6
1.2
S
6
1
S
6
1
S
6
1.4
SSE
6
1.1
SSE
6
0.8
SSE
6
0.9
SSE
6
1.2
SSE
6
1.4
S
6
1.5
S
7
1.2
SSE
6
1.4
SSE
6
1.5
SSE
7
Wave Graph
Metric surfscale
Energy kJ
76
35
30
31
33
31
47
45
109
73
73
151
104
50
55
103
166
202
115
165
187
Wind (km/h)
0
NE
10
SSE
15
S
10
SSW
20
SSW
20
SSW
15
SW
20
SSW
25
SSW
10
WSW
5
SSW
5
ENE
5
ESE
5
SW
10
SSE
10
SSW
10
S
15
S
5
SSW
10
SE
10
SSE
glassy
on
cross-on
cross
cross
cross-on
cross
cross
cross-on
cross-off
glassy
cross-on
glassy
glassy
on
cross-on
cross-on
cross-on
cross-on
on
cross-on
High Tide
8:49AM0.93m
5:38PM1.07m
8:18AM1.01m
7:21PM0.98m
8:19AM1.13m
9:01PM0.91m
8:33AM1.28m
10:38PM0.86m
8:57AM1.44m
00:37AM0.83m
9:29AM1.59m
10:07AM1.71m
Low Tide
00:48AM0.37m
11:55AM0.90m
1:16AM0.45m
1:55PM0.74m
1:37AM0.56m
3:04PM0.52m
1:53AM0.67m
4:02PM0.31m
2:00AM0.77m
4:57PM0.11m
1:38AM0.83m
5:52PM-0.03m
6:48PM-0.11m
part cloud
clear
clear
part cloud
clear
clear
clear
clear
clear
clear
light rain
mod rain
thunderstorm
mod rain
cloud
mod rain
thunderstorm
thunderstorm
thunderstorm
thunderstorm
thunderstorm
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:05
6:05
6:05
6:05
6:05
6:03
6:03
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
7:04
7:04
7:04
7:05
7:05
7:05
7:06
7:06
1
10
13
10
8
7
6
11
5
16
Temp °C
27
29
30
27
31
31
28
32
32
29
30
30
26
26
27
26
27
28
26
27
26
31
32
32
32
33
32
32
34
33
34
35
33
32
31
30
30
31
31
29
31
30
Swell 1
Height (m)
Direction
Period (s)
0.8
E
8
0.6
E
7
0.5
E
7
0.4
ESE
6
0.4
ENE
10
0.4
E
10
0.7
S
5
0.9
SSE
6
0.4
E
10
1
S
6
0.4
E
10
1.4
SSE
6
1.1
SSE
6
0.8
SSE
6
0.9
SSE
6
0.3
ENE
6
0.7
E
6
0.5
E
6
1
S
6
0.8
ENE
9
1.5
SSE
7
Energy kJ
76
35
21
12
33
31
28
45
29
73
29
151
104
50
55
8
38
20
76
101
187
Swell 2
Height (m)
Direction
Period (s)
0.4
ENE
10
0.3
E
10
0.4
E
10
0.4
E
10
0.2
ESE
4
0.1
E
6
0.4
E
10
0.4
E
10
0.4
E
9
0.3
E
10
0.4
E
10
0.4
E
10
0.3
E
10
0.3
E
10
0.2
E
10
0.3
E
9
0.6
ENE
8
0.7
ENE
8
Energy kJ
32
17
30
31
2
1
30
30
28
17
30
30
17
16
8
15
51
72
Swell 3
Height (m)
Direction
Period (s)
0.2
ENE
6
0.2
ENE
6
0.3
E
6
0.1
NE
8
0.5
ESE
5
Energy kJ
4
4
7
2
15
Wind waves
Height (m)
Direction
Period (s)
0.2
SSW
2
0.4
SSW
4
0.7
S
4
0.9
S
5
0.7
SSW
6
1.2
S
6
1
S
6
1.2
SSE
6
1.4
S
6
1.5
S
7
1.2
SSE
6
1.4
SSE
6
Energy kJ
1
4
18
47
34
109
73
103
166
202
115
165
Nearest Offshore or Glassy
Rating
(10 max)
1
1
2
2
1
1
1
1
2
1
1
1
1
1
1
1
1
1
1
1
1
Distance (km)
0
349
1157
1157
1157
1243
1243
347
1157
0
0
1249
0
0
1249
881
347
359
37
349
347
Best forecast wave conditions in Hainan
Rating
(10 max)
1
1
1
1
1
1
Best forecast wave conditions in China
Rating
(10 max)
1
1
1
1
1
1
1
Header Global
Rating
(10 max)
4
5
9
8
9
6
6
5
5
5
5
5
5
5
4
5
5
4
4
4
6
  • 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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