Riyue Bay (Riyuewan) surfForecast / Hainan / China

information circle48hr Weather and Surf, issued 7 am Monday 04 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
26.5° C
(Which is 1.1°C colder than average for this time of year)

How big are the waves at Riyue Bay (Riyuewan) today?

The current surf forecast for Riyue Bay (Riyuewan) at 3PM is: 0.4m 7s primary swell from a East-northeast direction and 0.2m 4s secondary swell from a South direction (forecast issued at 07:00am May 04). The wind direction is predicted to be cross-onshore.

Time (CST) & DateWave HeightWave Period
Morning (04 May)1.5ft (0.5m)7s
Afternoon (04 May)1.5ft (0.4m)7s
Evening (04 May)2ft (0.6m)6s

Table - waves today at Riyue Bay (Riyuewan). (Swell directed towards the surf break)


Updates in  hr  min  s Forecast update imminent

Short Range Forecast

Light rain (total 9mm), mostly falling on Tue afternoon. Warm (max 29°C on Mon morning, min 24°C on Mon night). Wind will be generally light.

Monday
4
Tuesday
5
Wednesday
6
Thu
7
5 AM
8 AM
11 AM
2 PM
5 PM
8 PM
11 PM
2 AM
5 AM
8 AM
11 AM
2 PM
5 PM
8 PM
11 PM
2 AM
5 AM
8 AM
11 AM
2 PM
5 PM
8 PM
11 PM
2 AM
Rating
(10 max)
0
0
0
0
0
0
0
0
1
1
0
0
0
0
0
1
2
1
0
0
0
0
0
1
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><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)
0.5
E
7
0.5
E
7
0.5
E
7
0.5
E
7
0.4
ENE
7
0.6
ENE
6
0.8
ENE
4
0.8
ENE
6
1.1
ENE
6
1
ENE
6
0.9
ENE
6
0.8
E
6
0.7
E
6
0.7
E
6
0.7
E
6
0.8
ENE
8
1.2
E
10
1.2
E
9
1.2
E
9
1.2
E
9
1.1
E
9
1.1
E
9
1
E
8
1
E
8
Wave Graph
Metric surfscale
Energy kJ
26
25
24
24
15
28
21
34
77
66
59
43
32
33
40
85
267
246
235
230
185
181
143
136
Wind (km/h)
5
N
10
N
10
E
15
ESE
15
ENE
15
NE
10
NNE
10
NNE
10
NNE
10
NNE
15
ENE
15
ENE
15
E
10
ENE
5
NE
5
NNE
5
NNW
5
NNE
10
SE
10
SE
10
ESE
5
ESE
5
ESE
5
SE
cross-off
cross-off
cross-on
cross-on
cross
cross
cross-off
cross-off
cross-off
cross-off
cross
cross-on
cross-on
cross
cross
glassy
glassy
glassy
on
on
on
on
cross-on
glassy
High Tide
10:43AM1.47m
11:13AM1.48m
11:47AM1.48m
Low Tide
7:14PM0.15m
8:00PM0.16m
8:50PM0.19m
cloud
part cloud
part cloud
part cloud
thunderstorm
thunderstorm
thunderstorm
thunderstorm
part cloud
part cloud
thunderstorm
thunderstorm
thunderstorm
thunderstorm
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:09
6:09
6:09
6:07
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
7:00
7:00
7:01
7:01
1
1
1
1
1
2
1
1
Temp °C
24
25
29
29
27
25
24
24
24
25
27
27
27
25
25
24
24
25
29
29
29
27
26
26
28
28
32
31
29
27
27
27
27
28
29
30
30
28
29
29
28
29
33
31
32
32
31
31
Swell 1
Height (m)
Direction
Period (s)
0.5
E
7
0.5
E
7
0.5
E
7
0.5
E
7
0.4
ENE
7
0.2
E
9
0.2
E
9
0.2
E
9
0.8
ENE
6
0.8
ENE
6
0.8
E
6
0.8
E
6
0.7
E
6
0.7
E
6
0.7
E
6
0.8
ENE
8
1.2
E
10
1.2
E
9
1.2
E
9
1.2
E
9
1.1
E
9
1.1
E
9
1
E
8
1
E
8
Energy kJ
26
25
24
24
15
6
6
6
45
46
43
43
32
33
40
85
267
246
235
230
185
181
143
136
Swell 2
Height (m)
Direction
Period (s)
0.3
SSE
4
0.2
S
4
0.2
S
4
0.2
S
4
0.2
E
9
0.2
E
10
0.2
E
9
0.2
E
9
0.2
E
9
0.2
E
9
0.3
E
9
0.5
E
10
Energy kJ
3
1
1
1
6
8
7
7
7
7
15
51
Swell 3
Height (m)
Direction
Period (s)
0.2
S
4
0.2
S
4
0.1
NE
8
0.2
ENE
8
Energy kJ
1
1
3
6
Wind waves
Height (m)
Direction
Period (s)
0.3
NE
3
0.6
ENE
6
0.8
ENE
4
0.8
ENE
6
1.1
ENE
6
1
ENE
6
0.9
ENE
6
Energy kJ
1
28
21
34
77
66
59
Nearest Offshore or Glassy
Rating
(10 max)
1
1
1
1
1
1
1
1
1
1
2
1
2
1
1
1
2
1
2
1
2
1
1
1
Distance (km)
362
362
1810
1249
1249
347
347
347
0
0
1373
1249
1157
1243
715
0
0
0
1157
1249
1249
1243
356
0
Best forecast wave conditions in Hainan
Rating
(10 max)
1
1
1
2
1
1
Best forecast wave conditions in China
Rating
(10 max)
1
1
1
2
1
1
1
Header Global
Rating
(10 max)
4
4
4
4
5
5
5
4
5
4
5
5
5
5
5
5
5
5
6
5
9
9
9
6
  • Map Icons:
  • Break
  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
Map placeholder

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