Dadonghai surfForecast / Hainan / China

information circle12 Day Weather and Surf, issued 1 pm Tuesday 08 Jul 2025 CST
Forecast update in 5hr 56 min 20 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
86.0°F
(Which is slightly warmer than usual)


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 Tuesday (Jul 08) at 11PM. The primary swell is predicted to be 3ft 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 5ft 6s and forecast to arrive on Friday (Jul 11) at 2PM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 6ft 7s period and expected on Thursday (Jul 10) at 2AM.

Wave TypeTime (CST) & Date Wave Height & Period
Next good surf (1 star+)11PM (Tue 8th Jul)3ft (0.9m) 8s
Best Surf11PM (Tue 8th Jul)3ft (0.9m) 8s
Most Powerful 2PM (Fri 11th Jul)5ft (1.5m) 6s

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

Updates in 5 hr 56 min 20 s Forecast update imminent
Tue
08
Wednesday
09
Thursday
10
Friday
11
Saturday
12
Sunday
13
Monday
14
Tuesday
15
Wednesday
16
Thursday
17
Friday
18
Saturday
19
Sun
20
PMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAM
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
Swell
Height Map
Wave Height (ft) & direction (?)
2
SSE
3.5
SSE
3.5
SSE
3
SSE
3
SSE
3.5
WSW
4
WSW
2.5
SSE
4.5
WSW
2.5
SSE
3
SSE
2.5
SSE
3
SSE
3
SSE
2.5
SSE
2.5
SSE
3
SSE
2.5
SSE
2
S
2.5
SSE
2
SSE
1.5
S
1.5
SSE
2.5
S
2.5
S
2.5
SSE
2.5
S
2.5
SSE
3
SSE
2.5
SSE
2.5
SSE
2
S
2
S
3
WSW
2
S
2
S
Period(s) (?)677786676788887777798768988788888588
Wave
Graph
(?)Metric surfscale
Energy (?)541141208410211813581152731219010710257567848407750272361767668731151231224880764891
Wind
(mph)
10
W
5
WNW
15
WSW
10
W
10
W
15
W
10
W
10
W
15
W
10
W
5
WSW
10
W
10
W
5
NW
5
SW
5
SSW
5
E
5
SSW
5
SW
0
SSE
5
SW
10
WSW
5
WSW
10
WSW
10
W
5
NNW
10
W
10
W
5
W
15
W
10
W
5
WNW
10
WNW
10
WNW
5
WNW
5
WNW
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
crosscross-
off
crosscrosscrosscrosscrosscrosscrosscrosscrosscrosscrossglasscross-
on
cross-
on
glasscross-
on
cross-
on
glasscross-
on
crosscross-
on
cross-
on
crosscross-
off
crosscrosscross-
off
crosscrosscross-
off
cross-
off
cross-
off
cross-
off
cross-
off
High Tide
/ height (ft)
9:02AM
4.95
9:47AM
5.18
10:31AM
5.35
11:15AM
5.45
11:57AM
5.41
12:39PM
5.25
3:52AM
2.2
1:22PM
4.89
3:52AM
2.49
2:08PM
4.33
4:08AM
2.92
3:01PM
3.67
4:33AM
3.41
4:09PM
2.92
5:07AM
3.97
6:01PM
2.23
5:50AM
4.49
Low Tide
/ height (ft)
5:26PM
0.62
6:05PM
0.39
6:43PM
0.23
7:21PM
0.16
7:56PM
0.2
8:28PM
0.3
8:56PM
0.49
5:22AM
2.2
9:20PM
0.75
7:04AM
2.26
9:38PM
1.12
8:46AM
2.23
9:50PM
1.48
10:40AM
2.07
9:55PM
1.8
12:48PM
1.64
9:41PM
1.97
Tue
08
Wednesday
09
Thursday
10
Friday
11
Saturday
12
Sunday
13
Monday
14
Tuesday
15
Wednesday
16
Thursday
17
Friday
18
Saturday
19
Sun
20
Sunrise--6:11--6:11--6:11--6:11--6:13--6:13--6:13--6:13--6:13--6:13--6:15--6:15
Sunset7:22--7:22--7:22--7:21--7:21--7:21--7:21--7:21--7:21--7:21--7:21--7:20--
clearrain showersthunderstorm part cloudpart cloudpart cloudpart cloudclearpart cloudpart cloudrain showerspart cloudclearclearclearclearclearclearclearclearclearpart cloudclearclearclearclearclearpart cloudpart cloudpart cloudpart cloudthunderstorm thunderstorm thunderstorm thunderstorm thunderstorm
Rain (in)
-0.00.0-------0.0--------------------0.20.20.00.10.2
Temp. °F888486868284868486868286888286888488888488888488888488888488888281818182
Feels °F (?)919391888888889188889091919091939395939395939393919391919191909184848690

Short Range Forecast: Light rain (total 0.1in), mostly falling on Tue night. Warm (max 88°F on Tue afternoon, min 82°F on Tue night). Wind will be generally light.

Days 3-6 Weather Summary Some drizzle, heaviest during Fri night. Warm (max 88°F on Sat afternoon, min 81°F on Fri night). Wind will be generally light.

Days 6-9 Weather Summary Mostly dry. Warm (max 88°F on Mon afternoon, min 81°F on Mon night). Wind will be generally light.

Long Range Forecast: Heavy rain (total 0.8in), heaviest during Sun afternoon. Warm (max 88°F on Thu afternoon, min 79°F on Sat morning). Mainly fresh winds.

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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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