Riyue Bay (Riyuewan) surfForecast / Hainan / China

information circle48hr Weather and Surf, issued 7 am Saturday 19 Jul 2025 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
29.0° C
(Which is normal for this time of year)


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

The current surf forecast for Riyue Bay (Riyuewan) at 10AM is: 0.5m 8s primary swell from a South direction and 0.6m 6s secondary swell from a Southwest direction (forecast issued at 07:00am July 19). An open ocean swell of 1.1m 5s is not directed at the surf break. The wind direction is predicted to be glassy.

Time (CST) & DateWave HeightWave Period
Morning (19 Jul)1.5ft (0.5m)8s
Afternoon (19 Jul)2ft (0.6m)7s
Evening (19 Jul)3ft (0.9m)6s

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

Updates in  hr  min  s Forecast update imminent
Saturday
19
Sunday
20
Monday
21
Tue
22
5AM8AM11AM2PM5PM8PM11PM2AM5AM8AM11AM2PM5PM8PM11PM2AM5AM8AM11AM2PM5PM8PM11PM2AM
Rating
(10 max)
0
0
0
0
0
0
0
0
0
0
Swell
Height Map
Wave Height (m) & direction (?)
0.5
S
0.5
S
0.5
S
0.6
SW
0.8
SW
0.9
SW
0.9
SW
0.9
SW
0.4
ENE
0.7
E
2.2
WSW
0.9
E
1.3
SW
1.4
SW
1
S
0.9
S
1.9
SW
2.1
SW
2.2
SW
2
SW
2.4
SW
2.1
SW
1.5
S
1.5
S
Period(s) (?)88877766141371187997788891010
Wave
Graph
(?)Metric surfscale
Energy (?)3748616310912813414216533693438746751637333947863084581911111056786440
Wind
(km/h)
15
W
5
WNW
0
ESE
0
NW
10
WSW
15
WSW
10
WNW
15
W
10
NNE
10
W
15
WSW
15
W
15
WSW
20
WSW
15
WSW
25
WSW
35
WSW
35
WSW
35
WSW
35
WSW
30
WSW
25
SW
25
SW
25
WSW
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
cross-
off
cross-
off
glassglasscross-
off
cross-
off
cross-
off
cross-
off
cross-
off
cross-
off
cross-
off
cross-
off
cross-
off
cross-
off
cross-
off
cross-
off
cross-
off
cross-
off
cross-
off
cross-
off
cross-
off
crosscrosscross-
off
High Tide
/ height (m)
4:33AM
1.22
5:47PM
0.69
5:07AM
1.36
5:52AM
1.48
Low Tide
/ height (m)
12:24PM
0.53
8:46PM
0.65
2:02PM
0.34
3:12PM
0.17
Saturday
19
Sunday
20
Monday
21
Tue
22
Sunrise-6:11-------6:11-------6:11------
Sunset----7:17-------7:17-------7:17---
cloudcloudcloudthunderstorm thunderstorm rain showerspart cloudlight rainlight rainlight rainlight rainlight raincloudlight raincloudlight rainlight rainpart cloudcloudcloudlight rainlight rainrain showersrain showers
Rain (mm)
---211-13211-1-41---1111
Temp. °C282828262626262624252626262526252627272827272727
Feels °C (?)313333323029302928292929292728262526262727282828
  • 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

Eyeball surf reportRecent Eyeball Surf Reports for Hainan

  1. weather stationWind Update The wind is still cross-on at Riyue Bay (Riyuewan) (moderate winds from the S at Dongfang 177 km from Riyue Bay (Riyuewan)). 1.6m 6s windswell from the WSW with a 0.7m 5s windswell, also from the WSW. Swells combining to make to make bigger set waves.

    Riyue Bay (Riyuewan)
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