Dadonghai surfForecast / Hainan / China

information circle16 Day Weather and Surf, issued 1 am Friday 01 May 2026 CST
Forecast update in hr  min  s Forecast update imminent
Dadonghai surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Dadonghai sea temperature is
26.9° C
(Which is normal for this time of year)

Best Forecast Surf Conditions for Dadonghai this week:

The most powerful waves expected at Dadonghai in the next 16 days are 0.7m 5s and forecast to arrive on Friday (May 01) at 5PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.4m 6s period and expected on Monday (May 04) at 11PM.

Wave TypeTime (CST) & Date Wave Height & Period
Next good surf (1 star+)--
Best Surf--
Most Powerful 5PM (Fri 1st May)2.5ft (0.7m) 5s

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 Sun night. Warm (max 29°C on Sat afternoon, min 24°C on Fri morning). Wind will be generally light.

Days 4-6 Weather Summary

Moderate rain (total 10mm), heaviest on Mon afternoon. Warm (max 28°C on Mon morning, min 24°C on Mon night). Wind will be generally light.

Friday
1
Saturday
2
Sunday
3
Monday
4
Tuesday
5
Wednesday
6
Thursday
7
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
0
0
0
0
0
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)
0.8
E
6
0.7
E
5
0.6
E
5
0.4
SE
4
0.5
SE
4
0.4
SE
4
0.4
SSE
4
0.5
S
4
0.5
SSE
4
0.4
SSE
4
0.3
SSE
4
1.2
ENE
6
0.8
ENE
6
0.7
E
6
0.6
E
6
0.3
E
3
0.2
ESE
5
0.9
E
8
0.3
SSE
3
0.3
S
4
0.4
SSE
4
Wave Graph
Metric surfscale
Energy kJ
0
26
20
5
7
4
5
9
10
7
3
0
0
0
0
1
3
0
2
2
5
Wind (km/h)
15
ESE
15
ESE
10
ENE
15
ESE
15
SSE
5
ENE
10
SSE
10
S
5
NE
10
SSE
5
SE
10
ENE
10
ESE
15
E
10
ENE
10
ESE
15
ESE
10
E
15
ESE
15
SE
5
NE
cross
cross-on
cross-off
cross-on
cross-on
glassy
cross-on
on
cross-off
cross-on
cross-on
cross-off
cross
cross
cross-off
cross-on
cross-on
cross-off
cross-on
cross-on
cross-off
High Tide
10:18AM1.31m
00:11AM0.82m
10:40AM1.40m
1:18AM0.76m
11:06AM1.47m
11:36AM1.50m
12:09PM1.51m
12:45PM1.49m
1:24PM1.46m
Low Tide
5:47PM0.28m
3:42AM0.71m
6:31PM0.20m
3:37AM0.73m
7:14PM0.16m
7:59PM0.15m
8:48PM0.17m
9:41PM0.21m
10:38PM0.24m
part cloud
clear
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
thunderstorm
part cloud
thunderstorm
thunderstorm
clear
thunderstorm
thunderstorm
clear
part cloud
clear
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:15
6:13
6:13
6:13
6:13
6:11
6:11
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
7:01
7:02
7:02
7:02
7:04
7:04
7:04
2
4
3
2
1
Temp °C
27
28
25
28
29
26
29
29
27
28
27
26
28
27
25
28
28
26
29
30
27
28
29
27
31
32
30
33
32
32
31
30
29
30
29
28
30
29
29
31
32
31
Swell 1
Height (m)
Direction
Period (s)
0.1
E
9
0.2
ENE
9
0.5
ENE
8
0.4
ENE
8
0.5
ENE
8
0.6
ENE
8
0.6
ENE
8
0.6
ENE
8
0.5
E
7
0.4
ENE
7
0.2
WNW
6
0.2
WNW
5
0.2
E
9
0.2
E
9
0.7
ENE
9
0.8
ENE
8
0.9
E
8
0.9
E
8
0.9
ENE
8
0.8
ENE
8
Energy kJ
2
7
35
24
34
49
50
45
27
16
4
2
7
7
84
92
103
108
120
90
Swell 2
Height (m)
Direction
Period (s)
0.1
E
9
0.1
SE
5
0.2
SSW
4
0.4
SSE
4
0.5
S
4
0.5
SSE
4
0.4
SSE
4
0.3
SSE
4
0.1
E
10
0.1
SE
6
0.1
SE
5
Energy kJ
2
1
2
5
9
10
7
3
2
1
1
Swell 3
Height (m)
Direction
Period (s)
0.2
ESE
5
0.1
SE
5
0.2
SSW
5
0.2
WNW
8
0.2
WNW
7
Energy kJ
2
1
3
6
5
Wind waves
Height (m)
Direction
Period (s)
0.8
E
6
0.7
E
5
0.6
E
5
0.4
SE
4
0.5
SE
4
0.4
SE
4
0.4
ENE
3
0.4
ENE
4
1.2
ENE
6
0.8
ENE
6
0.7
E
6
0.6
E
6
0.3
E
3
0.2
ESE
5
0.3
SSE
3
0.3
S
4
0.4
SSE
4
Energy kJ
40
26
20
5
7
4
3
5
97
48
35
31
1
3
2
2
5
Nearest Offshore or Glassy
Rating
(10 max)
1
1
1
1
2
1
1
1
2
1
2
1
1
1
1
1
2
1
1
1
1
Distance (km)
264
1313
1148
1460
1270
264
267
1308
1270
264
264
822
264
264
87
662
1313
87
276
1245
87
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
Header Global
Rating
(10 max)
6
7
6
5
7
4
4
5
4
4
5
5
4
5
4
5
5
6
6
8
9
  • Map Icons:
  • Break
  • 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 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.

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