Dadonghai Surf Break
Lat Long: 18.22° N 109.52° E

Dadonghai Surf Forecast and Surf Report

Weather Forecast for Dadonghai

Issued: 7 pm 02 Jun 2026 (local time)

Forecast update in  hr  min

Today's Dadonghai sea temperature is
30.4° C

1.2°C warmer than normal for this time of year

Dadonghai surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.


Dadonghai surf forecast from 2 Jun 2026:

  • Best quality surf: Thursday 4 Jun, 8PM (local time) - 2.5ft (0.7m), 8s period, SSE swell with glassy winds.
  • Most powerful swell: Tuesday 9 Jun, 5PM (local time) - 4.5ft (1.4m), 9s period, SSE swell with 275 kJ wave energy.
  • Next surfable swell (1★+): Thursday 4 Jun, 8PM (local time) - 2.5ft (0.7m), 8s period with SSE swell.

Best Forecast Surf Conditions for Dadonghai this week:

The surf forecast for Dadonghai over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Thursday (Jun 04) at 8PM. The primary swell is predicted to be 0.7m and 8s period. The wind is predicted to be glassy as the swell arrives.

The most powerful waves expected at Dadonghai in the next 16 days are 1.4m 9s and forecast to arrive on Tuesday (Jun 09) at 5PM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.6m 6s period and expected on Tuesday (Jun 09) at 2PM.

Wave TypeTime (CST) & Date Wave Height & Period
Next good surf (1 star+) 8PM (Thu 4th Jun)2.5ft (0.7m) 8s
Best Surf 8PM (Thu 4th Jun)2.5ft (0.7m) 8s
Most Powerful 5PM (Tue 9th Jun)4.5ft (1.4m) 9s

Table - best surf conditions forecast for Dadonghai over the next 16 days.


Updates in  hr  min  s Forecast update imminent

Short Range Forecast

Light rain (total 2mm), mostly falling on Wed night. Warm (max 33°C on Fri morning, min 27°C on Tue night). Wind will be generally light.

Days 5-7 Weather Summary

Light rain (total 8mm), mostly falling on Sun night. Warm (max 33°C on Sat afternoon, min 28°C on Fri night). Wind will be generally light.

Wednesday
3
Thursday
4
Friday
5
Saturday
6
Sunday
7
Monday
8
Tue
9
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
1
0
0
1
0
0
0
0
0
0
0
0
1
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)
0.2
SSE
6
0.5
S
4
0.5
S
5
0.6
S
4
0.7
S
5
0.5
S
8
0.9
SSE
8
1
S
8
1
S
9
1.2
S
8
0.9
SSE
7
1
SSE
9
1.3
SSE
8
1.1
SSE
7
1
SSE
7
1
SSE
8
0.9
SSE
7
1
SSE
7
1.1
SSE
8
1
SSE
7
1.4
SSE
9
Wave Graph
Metric surfscale
Energy kJ
3
9
10
13
22
32
125
131
165
186
94
158
196
128
108
120
82
105
159
111
275
Wind (km/h)
5
ESE
10
S
10
S
5
S
10
SSW
15
WSW
5
SSW
10
SW
20
W
5
WSW
15
SW
20
W
5
SW
10
WSW
20
WSW
5
SW
20
WSW
15
SW
0
NW
30
W
25
W
Wind State
glassy
on
on
glassy
on
cross-on
glassy
cross-on
cross
glassy
cross-on
cross
cross-on
cross
cross
cross-on
cross-on
cross-on
glassy
cross
cross
High Tide
11:53AM1.56m
12:33PM1.53m
1:12PM1.49m
1:51PM1.42m
2:32PM1.33m
3:21PM1.22m
7:03AM0.86m
4:26PM1.07m
Low Tide
8:43PM0.14m
9:25PM0.17m
10:05PM0.21m
10:40PM0.25m
11:10PM0.30m
11:35PM0.36m
10:11AM0.82m
clear
clear
clear
rain showers
clear
clear
rain showers
clear
clear
rain showers
clear
part cloud
rain showers
thunderstorm
clear
thunderstorm
part cloud
thunderstorm
thunderstorm
rain showers
thunderstorm
6:05
6:05
6:05
6:05
6:05
6:05
6:05
7:14
7:14
7:15
7:15
7:15
7:15
7:15
7:15
1
1
1
1
2
3
1
2
1
1
Temp °C
29
31
31
29
32
32
30
33
33
32
32
33
29
30
31
30
31
32
30
32
32
33
34
34
33
36
34
35
36
35
36
34
35
33
33
32
36
32
33
36
32
32
Swell 1
Height (m)
Direction
Period (s)
0.7
ENE
11
0.5
E
11
0.4
ENE
10
0.3
ENE
10
0.7
S
5
0.5
S
5
0.9
SSE
8
1
S
8
1
S
9
1.2
S
8
0.9
SSE
7
1
SSE
9
1.3
SSE
8
1.1
SSE
7
1
SSE
7
1
SSE
8
0.9
SSE
7
1
SSE
7
1.1
SSE
8
1
SSE
7
1.4
SSE
9
Energy kJ
133
58
34
19
22
11
125
131
165
186
94
158
196
128
108
120
82
105
159
111
275
Swell 2
Height (m)
Direction
Period (s)
0.2
SSE
6
0.5
S
4
0.1
S
7
0.1
S
8
0.2
E
11
0.5
S
8
0.2
E
10
0.2
E
10
0.2
E
10
0.2
E
10
0.3
WSW
4
0.7
W
6
0.4
W
5
0.2
W
4
0.6
W
6
0.5
W
5
0.1
NE
7
0.1
NE
7
0.5
W
5
0.1
E
10
0.1
E
10
Energy kJ
3
9
1
1
9
32
8
8
8
8
3
31
8
1
25
13
2
2
13
2
2
Swell 3
Height (m)
Direction
Period (s)
0.2
SSE
6
0.1
E
11
0.2
SSE
8
0.2
E
10
0.1
E
9
0.1
E
9
0.2
E
10
0.1
E
10
0.1
E
10
0.1
E
10
0.1
E
10
0.1
E
10
0.1
E
10
0.1
E
10
0.1
NE
7
0.1
E
7
0.1
E
7
Energy kJ
3
2
6
8
2
1
8
2
2
2
2
2
2
2
2
1
1
Wind waves
Height (m)
Direction
Period (s)
0.3
SSE
3
0.5
S
5
0.6
S
4
0.4
W
3
0.3
W
5
0.5
W
5
0.5
W
3
1
W
6
0.8
W
4
1.3
W
6
Energy kJ
2
10
13
3
4
14
6
67
20
135
Nearest Offshore or Glassy
Rating
(10 max)
1
1
1
1
1
1
3
2
3
1
3
1
1
3
3
3
2
1
2
1
1
Distance (km)
1161
267
1259
662
281
1310
1161
803
1259
87
1161
1460
1270
1243
1155
1161
1243
1259
14
821
1310
Best forecast wave conditions in Hainan
Rating
(10 max)
1
2
Best forecast wave conditions in China
Rating
(10 max)
1
1
2
1
1
2
Header Global
Rating
(10 max)
5
5
5
5
5
4
5
5
5
9
8
9
9
9
7
8
9
6
5
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
submit an eyeball surf report

Quick surf report for Dadonghai:

join our community of surf reporters

FREE! Surf-Forecast.com widget for your website

The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Dadonghai surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.


Information about the Dadonghai Surf forecast

The above surf forecast table for Dadonghai provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Dadonghai can be found by selecting the local surf guide option on the grey menu. Our Dadonghai 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 (Dadonghai) 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 Dadonghai 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 Dadonghai, camping, hotels and holiday cottages in Hainan, consider staying in Sanya which is 4 km (2 miles) away. Other places in and around Hainan where you can find information about places to rent, and car hire include Bacun which is 63 km (39 miles) away, Li-an, Baoding and Baisha.

Nearest locationNearest