Dadonghai surfForecast / Hainan / China

information circle12 Day Weather and Surf, issued 1 pm Friday 21 Nov 2025 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
26.3° C
(Which is slightly warmer than usual)


Best Forecast Surf Conditions for Dadonghai this week:

The largest open ocean swell (not directed at the beach) is 3.5m 11s period and expected on Friday (Nov 21) at 11PM.

Updates in  hr  min  s Forecast update imminent

Short Range Forecast Mostly dry. Warm (max 27°C on Sun afternoon, min 19°C on Fri night). Wind will be generally light.

Days 3-6 Weather Summary Mostly dry. Warm (max 27°C on Mon afternoon, min 20°C on Tue night). Wind will be generally light.

Fri
21
Saturday
22
Sunday
23
Monday
24
Tuesday
25
Wednesday
26
Thursday
27
PMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAM
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
Wave Height (m) & direction (?)
2.5
E
3
ENE
2.5
ENE
3
ENE
3
ENE
2.5
E
2.5
E
2.5
ENE
2.4
ENE
2.5
E
2.2
E
2.5
E
2.5
E
2.4
E
2.3
E
2.5
E
3
E
2.4
E
2.3
E
3
ENE
2.2
E
Period(s) (?)11111111111010101091010101011111111111111
Wave
Graph
(?)Metric surfscale
Energy kJ (?)000000000000000000000
Wind
(km/h)
5
WSW
10
NNE
10
NNE
10
NE
10
NNE
15
NE
20
ENE
10
NNE
20
NE
20
ENE
10
NNE
15
NE
5
NNE
10
NE
15
NE
5
NNW
10
NNE
10
NNE
5
ESE
15
NNE
10
NNE
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
glasscross-
off
offcross-
off
offcross-
off
cross-
off
offcross-
off
cross-
off
offcross-
off
glasscross-
off
cross-
off
glassoffoffcross-
on
offcross-
off
High Tide
/ height (m)
10:47PM
1.53
11:21PM
1.55
11:57PM
1.55
12:35AM
1.53
1:14AM
1.49
1:57AM
1.44
2:45AM
1.35
Low Tide
/ height (m)
7:17AM
0.11
8:00AM
0.12
8:47AM
0.14
9:34AM
0.17
10:22AM
0.20
11:06AM
0.23
11:44AM
0.27
Fri
21
Saturday
22
Sunday
23
Monday
24
Tuesday
25
Wednesday
26
Thursday
27
Sunrise--6:50--6:52--6:52--6:52--6:52--6:54--6:54
Sunset6:04--6:04--6:02--6:02--6:02--6:02--6:02--
part cloud
part cloud
part cloud
part cloud
part cloud
clear
part cloud
part cloud
part cloud
clear
part cloud
part cloud
clear
clear
clear
clear
clear
clear
clear
clear
clear
Rain (mm)
---------------------
Temp. °C232222252326272426272425262224262324262221
Feels °C (?)232321262326272525262423262223262424261918
  • 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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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 12 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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