Riyue Bay (Riyuewan) surfForecast / Hainan / China

information circle16 Day Weather and Surf, issued 1 am Friday 08 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
27.1° C
(Which is slightly cooler than normal)

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 (May 10) at 5AM. The primary swell is predicted to be 1.6m and 7s period with a secondary swell of 1.0m and 7s. Another secondary swell of 0.4m and 9s 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 1.8m 9s and forecast to arrive on Sunday (May 10) at 5PM. 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+) 5AM (Sun 10th May)5ft (1.6m) 7s
Best Surf11PM (Sun 10th May)5.5ft (1.7m) 9s
Most Powerful 5PM (Sun 10th May)6ft (1.8m) 9s

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

Moderate rain (total 15mm), heaviest on Sun afternoon. Warm (max 30°C on Fri morning, min 24°C on Sun night). Wind will be generally light.

Days 4-6 Weather Summary

Mostly dry. Warm (max 31°C on Wed morning, min 24°C on Mon night). Wind will be generally light.

Friday
8
Saturday
9
Sunday
10
Monday
11
Tuesday
12
Wednesday
13
Thursday
14
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
0
1
1
0
0
1
0
0
0
0
0
0
0
0
0
Swell
Height Map
<span class="translation_missing" title="translation missing: en.components.forecast-table.maps.snow_map">Snow Map</span>
<span class="translation_missing" title="translation missing: en.components.forecast-table.maps.snow_map">Snow Map</span>
<span class="translation_missing" title="translation missing: en.components.forecast-table.maps.snow_map">Snow Map</span>
<span class="translation_missing" title="translation missing: en.components.forecast-table.maps.snow_map">Snow Map</span>
<span class="translation_missing" title="translation missing: en.components.forecast-table.maps.snow_map">Snow Map</span>
<span class="translation_missing" title="translation missing: en.components.forecast-table.maps.snow_map">Snow Map</span>
<span class="translation_missing" title="translation missing: en.components.forecast-table.maps.snow_map">Snow Map</span>
Wave
Height (m)
Direction
Period (s)
0.4
E
9
0.5
E
9
0.5
E
9
0.5
E
9
0.4
E
10
0.9
ENE
6
1.8
ENE
8
1.8
ENE
9
1.3
E
9
1.2
E
9
1.1
E
8
0.9
E
8
0.6
E
7
0.4
E
10
0.4
E
10
0.5
E
10
0.4
E
10
0.4
E
10
1
S
6
1.2
S
6
1.1
S
6
Wave Graph
Metric surfscale
Energy kJ
25
42
43
43
29
50
418
477
263
210
161
93
34
31
31
50
31
33
64
106
91
Wind (km/h)
10
SE
10
SE
5
NE
15
ENE
20
ENE
10
NNE
15
ENE
15
ENE
10
NNE
10
E
10
E
0
SW
10
SE
15
S
10
SSW
20
SSW
20
SSW
15
SSW
20
SSW
20
S
10
SW
on
on
glassy
cross-on
cross-on
cross-off
cross-on
cross
cross-off
cross-on
cross-on
glassy
on
cross-on
cross-on
cross
cross-on
cross
cross-on
cross-on
cross
High Tide
1:04PM1.41m
1:49PM1.35m
2:44PM1.28m
3:59PM1.18m
8:49AM0.93m
5:38PM1.07m
8:18AM1.01m
7:21PM0.98m
8:19AM1.13m
9:01PM0.91m
Low Tide
10:41PM0.25m
11:32PM0.28m
00:14AM0.31m
00:48AM0.37m
11:55AM0.90m
1:16AM0.45m
1:55PM0.74m
1:37AM0.56m
3:04PM0.52m
1:53AM0.67m
clear
thunderstorm
thunderstorm
part cloud
part cloud
thunderstorm
thunderstorm
thunderstorm
part cloud
part cloud
part cloud
clear
clear
clear
clear
clear
part cloud
clear
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:07
6:07
6:07
6:07
6:05
6:05
6:05
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
7:02
7:02
7:02
7:04
7:04
7:04
7:05
3
1
3
3
5
Temp °C
30
29
27
29
29
26
27
27
26
29
28
26
29
30
27
31
31
28
31
31
28
34
32
32
30
30
29
29
29
29
32
30
30
32
32
31
33
32
32
33
33
32
Swell 1
Height (m)
Direction
Period (s)
0.4
ENE
6
0.5
E
9
0.5
E
9
0.5
E
9
0.4
E
10
0.4
E
10
1.4
E
8
1.4
E
9
1.3
E
9
1.2
E
9
1.1
E
8
0.9
E
8
0.6
E
7
0.5
E
7
0.4
E
10
0.5
E
10
0.4
E
10
0.6
S
5
0.4
E
10
0.4
E
10
0.4
E
10
Energy kJ
14
42
43
43
29
29
245
297
263
210
161
93
34
21
31
50
31
18
30
30
28
Swell 2
Height (m)
Direction
Period (s)
0.4
E
9
0.1
SE
4
0.4
ENE
10
0.4
E
10
0.4
E
10
0.4
E
6
0.1
E
5
0.1
NE
6
0.4
E
10
0.1
E
5
Energy kJ
25
1
32
30
31
11
1
1
31
1
Swell 3
Height (m)
Direction
Period (s)
0.1
S
5
0.2
ENE
7
0.1
E
5
0.1
NE
6
Energy kJ
1
4
1
2
Wind waves
Height (m)
Direction
Period (s)
0.5
E
5
0.9
ENE
6
1.8
ENE
8
1.8
ENE
9
0.4
ESE
6
0.5
S
4
0.6
S
4
0.8
S
5
1
S
6
1.2
S
6
1.1
S
6
Energy kJ
10
50
418
477
14
7
14
33
64
106
91
Nearest Offshore or Glassy
Rating
(10 max)
1
1
1
1
2
2
1
2
1
1
2
1
1
1
1
1
1
2
1
1
1
Distance (km)
349
1157
1243
1699
1249
1075
715
1157
0
347
1157
0
349
347
1243
356
1249
1246
349
347
75
Best forecast wave conditions in Hainan
Rating
(10 max)
1
1
1
Best forecast wave conditions in China
Rating
(10 max)
1
1
1
1
1
1
1
Header Global
Rating
(10 max)
6
7
5
5
5
4
5
4
4
5
5
4
8
9
8
6
4
7
5
5
5
  • Map Icons:
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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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