Surf Forecast Surf Report

Dadonghai surfForecast / Hainan / China

information circle12 Day Weather and Surf, issued 7 am Thursday 01 May 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
27.6° 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 Tuesday (May 06) at 5AM. The primary swell is predicted to be 1.0m and 6s period with a secondary swell of 0.9m and 5s. 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 6s and forecast to arrive on Thursday (May 08) at 8AM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.8m 8s period and expected on Thursday (May 01) at 2PM.

Wave TypeTime (CST) & Date Wave Height & Period
Next good surf (1 star+) 5AM (Tue 6th May)3.5ft (1.0m) 6s
Best Surf 5AM (Tue 6th May)3.5ft (1.0m) 6s
Most Powerful 8AM (Thu 8th May)3.5ft (1.1m) 6s

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

Updates in  hr  min  s Forecast update imminent
Thursday
01
Friday
02
Saturday
03
Sunday
04
Monday
05
Tuesday
06
Wednesday
07
Thursday
08
Friday
09
Saturday
10
Sunday
11
Monday
12
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
0
0
0
0
0
0
Swell
Height Map
Wave Height (m) & direction (?)
0.8
ENE
0.8
E
0.7
E
0.6
E
0.1
SE
0.2
SSE
0.1
SE
0.2
SSE
0.5
SE
0.6
SSE
0.5
S
0.6
SSE
0.9
SSE
0.9
S
0.8
SSE
1
S
0.9
SSE
0.9
SSE
0.8
SSE
0.9
SSE
0.9
SSE
1.1
S
1.1
SSE
0.9
SSE
0.8
SSE
0.7
SE
0.6
SE
0.7
SE
0.7
SSE
0.4
SSE
0.4
SSE
0.3
SSE
0.2
SSE
0.2
SSE
0.2
S
0.2
S
Period(s) (?)887723443454565666565666655555454565
Wave
Graph
(?)Metric surfscale
Energy (?)00000111612121445493569604539505185834739281922198842232
Wind
(km/h)
5
SSE
5
S
5
NE
10
SE
10
SE
5
E
10
SSE
15
SSE
10
SSE
15
SSE
15
SSE
10
SE
15
SSE
10
SSE
5
SSE
15
SSE
15
SSE
10
SE
15
SSE
15
SSE
10
SSE
15
SSE
10
S
10
SE
5
S
0
SSE
10
NNE
0
ENE
0
SSW
5
NNW
10
SSW
5
S
10
ENE
5
SE
10
ESE
10
NE
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
cross-
on
glasscross-
off
cross-
on
cross-
on
glasscross-
on
cross-
on
cross-
on
ononcross-
on
ononcross-
on
ononcross-
on
cross-
on
oncross-
on
ononcross-
on
glassglassoffglassglassglasscross-
on
glasscross-
off
cross-
on
crosscross-
off
High Tide
/ height (m)
12:33PM
1.77
1:22PM
1.73
2:17PM
1.63
3:17PM
1.50
4:26PM
1.35
5:43PM
1.21
9:42AM
0.85
7:02PM
1.10
9:19AM
0.93
8:16PM
1.00
9:22AM
1.04
9:26PM
0.92
9:33AM
1.15
10:33PM
0.86
9:49AM
1.26
11:40PM
0.81
10:10AM
1.36
12:51AM
0.76
Low Tide
/ height (m)
9:23PM
-0.04
10:34PM
0.02
11:46PM
0.11
12:49AM
0.19
1:38AM
0.28
2:13AM
0.36
12:35PM
0.82
2:36AM
0.45
2:35PM
0.72
2:51AM
0.53
3:44PM
0.59
3:01AM
0.60
4:35PM
0.46
3:06AM
0.67
5:19PM
0.34
3:08AM
0.72
6:01PM
0.24
3:03AM
0.74
Thursday
01
Friday
02
Saturday
03
Sunday
04
Monday
05
Tuesday
06
Wednesday
07
Thursday
08
Friday
09
Saturday
10
Sunday
11
Monday
12
Sunrise6:15--6:13--6:13--6:13--6:13--6:11--6:11--6:11--6:11--6:09--6:09--6:09--
Sunset-7:01--7:02--7:02--7:02--7:04--7:04--7:04--7:05--7:05--7:05--7:06--7:06-
clearthunderstorm thunderstorm part cloudthunderstorm clearpart cloudclearclearpart cloudclearclearpart cloudpart cloudclearpart cloudpart cloudpart cloudpart cloudclearrain showersthunderstorm part cloudrain showersthunderstorm part cloudthunderstorm thunderstorm thunderstorm thunderstorm rain showersthunderstorm thunderstorm thunderstorm thunderstorm thunderstorm
Rain (mm)
-41-2---------------22-41-21454129252
Temp. °C292827282826282927303027293027302927293027313128313229272626282926292826
Feels °C (?)323232313129303231323332323331343231323331343434363533323031313331333229

Short Range Forecast: Light rain (total 7mm), mostly falling on Thu afternoon. Warm (max 29°C on Thu morning, min 25°C on Thu night). Wind will be generally light.

Days 3-6 Weather Summary Mostly dry. Warm (max 30°C on Sun morning, min 27°C on Sun morning). Wind will be generally light.

Days 6-9 Weather Summary Heavy rain (total 30mm), heaviest during Fri night. Warm (max 32°C on Fri afternoon, min 25°C on Fri night). Wind will be generally light.

Long Range Forecast: Heavy rain (total 34mm), heaviest during Sat morning. Warm (max 29°C on Sun afternoon, min 25°C on Sat morning). Wind will be generally light.

  • Map Icons:
  • Break
  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
<span class="translation_missing" title="translation missing: en.leaflet.map_placeholder_alt">Map Placeholder Alt</span>
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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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