Riyue Bay (Riyuewan) surfForecast / Hainan / China

information circle16 Day Weather and Surf, issued 7 pm Saturday 25 Apr 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
26.2° 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 Thursday (Apr 30) at 2AM. The primary swell is predicted to be 1.1m and 6s period with a secondary swell of 0.8m and 6s. Another secondary swell of 0.2m and 5s 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 1.2m 9s and forecast to arrive on Friday (May 01) at 2PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.4m 3s period and expected on Wednesday (Apr 29) at 11AM.

Wave TypeTime (CST) & Date Wave Height & Period
Next good surf (1 star+) 2AM (Thu 30th Apr)3.5ft (1.1m) 6s
Best Surf 2AM (Thu 30th Apr)3.5ft (1.1m) 6s
Most Powerful 2PM (Fri 1st May)4ft (1.2m) 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

Light rain (total 3mm), mostly falling on Sat night. Warm (max 29°C on Tue afternoon, min 23°C on Sat night). Wind will be generally light.

Days 5-7 Weather Summary

Moderate rain (total 12mm), heaviest on Wed morning. Warm (max 30°C on Wed afternoon, min 22°C on Wed night). Wind will be generally light.

Sunday
26
Monday
27
Tuesday
28
Wednesday
29
Thursday
30
Friday
1
Sat
2
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
1
0
0
0
0
0
1
0
0
Swell
Height Map
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<span class="translation_missing" title="translation missing: en.components.forecast-table.maps.snow_map">Snow Map</span>
Wave
Height (m)
Direction
Period (s)
0.8
ENE
6
0.6
ENE
6
0.5
E
6
0.5
E
7
0.5
ENE
6
0.5
ENE
6
0.4
ENE
6
0.4
ENE
6
0.4
ENE
6
0.4
E
5
0.5
E
7
0.4
ENE
7
1.1
NE
6
0.8
ENE
6
0.8
ENE
6
0.7
ENE
6
1.1
ENE
9
1.1
ENE
9
1
ENE
8
1
E
8
0.9
ENE
8
Wave Graph
Metric surfscale
Energy kJ
41
26
18
22
24
23
12
11
10
10
25
15
77
42
40
30
176
189
154
131
99
Wind (km/h)
10
N
10
ENE
15
E
5
ESE
10
SE
15
SSE
5
SSW
20
S
15
S
5
WNW
15
N
15
NE
15
NNE
15
NNE
20
ENE
10
NNE
10
E
10
ESE
0
SSE
10
SSE
10
S
cross-off
cross-on
cross-on
cross-on
on
cross-on
cross
cross-on
cross-on
off
cross-off
cross
cross-off
cross-off
cross
cross-off
cross-on
cross-on
glassy
cross-on
cross-on
High Tide
5:17PM1.23m
9:42AM0.92m
6:50PM1.12m
9:14AM0.99m
8:14PM1.02m
9:14AM1.08m
9:30PM0.95m
9:23AM1.18m
10:42PM0.89m
9:37AM1.28m
11:54PM0.85m
9:55AM1.37m
Low Tide
1:16AM0.23m
1:56AM0.32m
12:58PM0.88m
2:25AM0.43m
2:39PM0.73m
2:45AM0.54m
3:41PM0.57m
2:58AM0.64m
4:29PM0.43m
3:04AM0.73m
5:11PM0.31m
3:02AM0.79m
5:51PM0.21m
thunderstorm
part cloud
part cloud
thunderstorm
part cloud
thunderstorm
part cloud
part cloud
part cloud
thunderstorm
thunderstorm
thunderstorm
part cloud
part cloud
part cloud
part cloud
thunderstorm
thunderstorm
part cloud
part cloud
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:15
6:13
6:13
6:13
6:11
6:11
6:11
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:58
6:59
6:59
6:59
7:00
7:00
7:00
7:00
1
1
1
5
3
1
1
2
Temp °C
24
27
28
25
28
28
25
28
29
26
26
30
24
27
27
24
27
27
25
28
29
27
30
30
28
31
30
28
30
31
30
27
32
25
27
27
26
30
30
29
31
32
Swell 1
Height (m)
Direction
Period (s)
0.6
ENE
6
0.6
ENE
6
0.5
E
6
0.5
E
7
0.5
ENE
6
0.5
ENE
6
0.4
ENE
6
0.4
ENE
6
0.4
ENE
6
0.5
S
4
0.5
E
7
0.4
ENE
7
0.8
ENE
6
0.8
ENE
6
0.7
ENE
6
1.1
ENE
9
1.1
ENE
9
1
ENE
8
1
E
8
0.9
ENE
8
Energy kJ
26
26
18
22
24
23
12
11
10
10
25
15
47
42
30
176
189
154
131
99
Swell 2
Height (m)
Direction
Period (s)
0.2
S
5
0.1
E
12
0.1
S
6
0.4
SE
4
0.1
S
6
0.1
E
10
0.4
E
5
0.4
SSE
4
0.3
S
4
0.2
S
5
0.2
E
10
0.1
SE
5
Energy kJ
2
3
1
4
1
2
9
6
3
2
8
1
Swell 3
Height (m)
Direction
Period (s)
0.2
E
10
0.1
E
12
0.1
E
12
0.1
S
7
0.1
E
11
0.1
SE
6
0.1
S
6
0.1
E
9
0.2
E
8
0.1
E
10
0.1
E
10
Energy kJ
8
3
3
1
3
1
1
1
5
2
2
Wind waves
Height (m)
Direction
Period (s)
0.8
ENE
6
0.1
SE
4
0.3
SE
3
0.4
SE
4
0.4
SSE
4
0.5
S
4
0.4
NNE
3
0.3
NE
4
1.1
NE
6
0.8
ENE
6
Energy kJ
41
1
2
3
5
8
3
2
77
40
Nearest Offshore or Glassy
Rating
(10 max)
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
2
1
2
1
1
1
Distance (km)
1079
1248
1248
1075
1379
1373
1243
1373
1249
1183
349
1183
0
1249
75
1075
347
1079
0
349
1183
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
Header Global
Rating
(10 max)
4
5
7
7
8
6
6
5
5
5
6
5
7
5
5
4
6
5
6
4
4
  • 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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