Dadonghai Surf Forecast

/ Hainan (4 surf breaks) /

China (24 surf breaks)

Surf Forecasts:

Dadonghai surfForecast / Hainan / China

12 Day Weather and Surf, issued 1 am Tuesday 26 Aug 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 Tuesday (Aug 26) at 8AM. The primary swell is predicted to be 1.2m and 7s period. The wind is predicted to be cross-offshore 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 Tuesday (Aug 26) at 8PM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.3m 7s period and expected on Sunday (Aug 31) at 8AM.

Wave Type	Time (CST) & Date	Wave Height & Period
Next good surf (1 star+)	8AM (Tue 26th Aug)	4ft (1.2m) 7s
Best Surf	8AM (Tue 26th Aug)	4ft (1.2m) 7s
Most Powerful	8PM (Tue 26th Aug)	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

12 Days Hourly

Print Table

	Short Range Forecast Heavy rain (total 30mm), heaviest during Tue night. Warm (max 30°C on Tue morning, min 25°C on Tue night). Wind will be generally light.									Days 3-6 Weather Summary Heavy rain (total 46mm), heaviest during Sun night. Warm (max 31°C on Sat morning, min 25°C on Fri night). Wind will be generally light.
	Tuesday 26			Wednesday 27			Thursday 28			Friday 29			Saturday 30			Sunday 31			Monday 01
	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	1	1	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0	0
Swell Height Map See all maps
Wave Height (m) & direction (?)	S	S	S	SSE	SSE	S	S	SSE	S	S	S	S	S	S	S	S	S	S	S	SSE	SSE
Period(s) (?)	7	7	8	7	7	7	8	7	8	7	7	8	8	8	8	8	8	8	9	8	8
Wave Graph (?)
Energy (?)	138	117	154	62	47	42	30	18	11	9	4	2	6	11	12	12	11	12	45	70	90
Wind (km/h)	E	ENE	NE	ESE	WNW	NW	SW	SW	N	NE	NE	N	NE	NE	N	NE	E	SSE	SE	E	ESE
Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy	cross	cross- off	cross- off	glass	cross- off	glass	glass	glass	glass	glass	cross- off	off	cross- off	cross- off	off	cross- off	cross- off	on	cross- on	cross	cross
High Tide / height (m)	12:39PM 1.27		1:22AM 0.97	1:19PM 1.11		1:42AM 1.08	2:00PM 0.94		2:07AM 1.17		2:45PM 0.79	2:35AM 1.23		3:47PM 0.66	3:09AM 1.27			3:53AM 1.30			4:51AM 1.32
Low Tide / height (m)		7:26PM 0.45		6:59AM 0.53	7:30PM 0.53		8:00AM 0.51	7:29PM 0.59		9:06AM 0.51	7:21PM 0.62		10:25AM 0.50	6:56PM 0.62		12:14PM 0.47				2:15PM 0.40

	Tuesday 26			Wednesday 27			Thursday 28			Friday 29			Saturday 30			Sunday 31			Monday 01
Sunrise	6:26	-	-	6:26	-	-	6:26	-	-	6:26	-	-	6:26	-	-	6:26	-	-	6:26	-	-
Sunset	-	7:00	-	-	7:00	-	-	6:59	-	-	6:59	-	-	6:58	-	-	6:57	-	-	6:55	-

Rain (mm)	1	-	7	8	6	3	-	2	3	2	6	3	-	7	1	1	4	22	9	5	5
Temp. °C	30	30	27	29	28	26	29	29	27	27	29	26	31	29	27	27	29	27	28	29	27
Feels °C (?)	33	33	29	34	32	29	33	33	32	32	33	30	34	32	30	30	32	28	32	32	32

Map Icons:
Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)
Wind Speed (km/h)

Recent Eyeball Surf Reports for Hainan

Wind Update Cross-on wind has become light (calm at DANang 269 km from Dadonghai). A 1.0m swell from the SSE
47 minutes ago Dadonghai

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FREE! Surf-Forecast.com widget for your website

The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Dadonghai surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.

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.