Dadonghai surfForecast / Hainan / China

information circle12 Day Weather and Surf, issued 1 am Wednesday 02 Jul 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
29.6° C
(Which is normal for this time of year)


Best Forecast Surf Conditions for Dadonghai this week:

The surf forecast for Dadonghai over the next 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Monday (Jul 07) at 11PM. 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 12 days are 1.1m 8s and forecast to arrive on Wednesday (Jul 09) at 2AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.7m 5s period and expected on Tuesday (Jul 08) at 8PM.

Wave TypeTime (CST) & Date Wave Height & Period
Next good surf (1 star+)11PM (Mon 7th Jul)2.5ft (0.7m) 8s
Best Surf11PM (Mon 7th Jul)2.5ft (0.7m) 8s
Most Powerful 2AM (Wed 9th Jul)3.5ft (1.1m) 8s

Table - best surf conditions forecast for Dadonghai over the next 12 days.

Updates in  hr  min  s Forecast update imminent
Wednesday
02
Thursday
03
Friday
04
Saturday
05
Sunday
06
Monday
07
Tuesday
08
Wednesday
09
Thursday
10
Friday
11
Saturday
12
Sunday
13
AMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNight
Rating
(10 max)
0
0
0
0
0
0
0
0
0
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 (?)
0.2
E
0.4
SE
0.3
SSE
0.3
SSE
0.3
SSE
0.3
SSE
0.3
SSE
0.4
SSE
0.3
SSE
0.2
SSE
0.2
S
0.3
SSE
0.5
S
0.5
S
0.5
S
0.6
SSE
0.6
S
0.7
SSE
0.7
SSE
0.8
SSE
1.1
SSE
0.9
SSE
1
SSE
0.9
SSE
0.7
SSE
0.9
SSE
1
S
0.9
SSE
1.1
SSE
1.2
SSE
1.6
WSW
1.1
SSE
1.2
SSE
1
SSE
1.1
SSE
1.1
S
Period(s) (?)957777776688455887768788788888688888
Wave
Graph
(?)Metric surfscale
Energy (?)00991091019731312612154947604870155117120995496127183163234327163197133163214
Wind
(km/h)
10
E
10
ESE
10
ENE
10
E
15
ESE
10
NE
0
SE
0
SW
5
NE
5
SW
15
W
5
WNW
10
SW
15
W
5
W
10
WSW
10
WSW
0
WNW
15
WSW
15
WSW
5
NW
25
WSW
15
W
5
WNW
25
W
20
W
15
W
20
WSW
20
W
10
WNW
30
W
20
W
15
W
30
W
20
W
20
W
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
crosscrosscross-
off
crosscrosscross-
off
glassglasscross-
off
cross-
on
crosscross-
off
cross-
on
crosscrosscross-
on
crossglasscross-
on
crosscross-
off
crosscross-
off
cross-
off
crosscrosscross-
off
crosscrosscross-
off
crosscrosscrosscrosscrosscross
High Tide
/ height (m)
3:16PM
1.10
5:38AM
0.96
4:05PM
0.91
6:03AM
1.07
5:21PM
0.74
6:31AM
1.18
7:55PM
0.63
7:02AM
1.27
7:38AM
1.36
8:18AM
1.44
9:02AM
1.51
9:47AM
1.58
10:31AM
1.63
11:15AM
1.66
11:57AM
1.65
Low Tide
/ height (m)
8:50AM
0.77
10:38PM
0.45
10:59AM
0.76
10:41PM
0.53
1:19PM
0.68
10:34PM
0.59
3:03PM
0.54
9:55PM
0.62
4:02PM
0.41
4:46PM
0.29
5:26PM
0.19
6:05PM
0.12
6:43PM
0.07
7:21PM
0.05
7:56PM
0.06
8:28PM
0.09
Wednesday
02
Thursday
03
Friday
04
Saturday
05
Sunday
06
Monday
07
Tuesday
08
Wednesday
09
Thursday
10
Friday
11
Saturday
12
Sunday
13
Sunrise6:09--6:09--6:09--6:09--6:09--6:11--6:11--6:11--6:11--6:11--6:11--6:13--
Sunset-7:21--7:22--7:22--7:22--7:22--7:22--7:22--7:22--7:22--7:21--7:21--7:21-
thunderstorm thunderstorm thunderstorm thunderstorm thunderstorm thunderstorm thunderstorm thunderstorm thunderstorm thunderstorm part cloudrain showersclearthunderstorm part cloudpart cloudpart cloudclearpart cloudclearclearclearclearpart cloudpart cloudpart cloudclearthunderstorm part cloudpart cloudpart cloudpart cloudrain showerspart cloudclearrain showers
Rain (mm)
1624243233-1-1-------------1----2--1
Temp. °C303028303128292927303028303028293028313129313129313129313129303029313130
Feels °C (?)343433343432343332343333343232333433343234333234323233333334303033313132

Short Range Forecast: Heavy rain (total 27mm), heaviest during Thu morning. Warm (max 31°C on Thu afternoon, min 26°C on Wed night). Wind will be generally light.

Days 3-6 Weather Summary Light rain (total 5mm), mostly falling on Sat morning. Warm (max 30°C on Sat morning, min 26°C on Sat night). Wind will be generally light.

Days 6-9 Weather Summary Mostly dry. Warm (max 31°C on Tue morning, min 28°C on Tue morning). Wind will be generally light.

Long Range Forecast: Light rain (total 5mm), mostly falling on Fri morning. Warm (max 31°C on Fri morning, min 28°C on Fri night). Winds increasing (light winds from the WNW on Sat night, fresh winds from the W by Sun afternoon).

  • 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 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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