Dadonghai Surf Forecast

/ Hainan (4 surf breaks) /

China (24 surf breaks)

Surf Forecasts:

Dadonghai surfForecast / Hainan / China

12 Day Weather and Surf, issued 1 pm Monday 27 Oct 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 27.8° C
(Which is slightly warmer than usual)

Best Forecast Surf Conditions for Dadonghai this week:

The most powerful waves expected at Dadonghai in the next 12 days are 0.5m 7s and forecast to arrive on Thursday (Oct 30) at 11PM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 3.0m 10s period and expected on Tuesday (Oct 28) at 11AM.

Wave Type	Time (CST) & Date	Wave Height & Period
Next good surf (1 star+)	-	-
Best Surf	-	-
Most Powerful	11PM (Thu 30th Oct)	1.5ft (0.5m) 7s

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 47mm), heaviest during Tue morning. Warm (max 26°C on Wed morning, min 23°C on Mon afternoon). Wind will be generally light.											Days 3-6 Weather Summary Light rain (total 5mm), mostly falling on Thu afternoon. Warm (max 28°C on Fri afternoon, min 24°C on Fri night). Wind will be generally light.
	Mon 27		Tuesday 28			Wednesday 29			Thursday 30			Friday 31			Saturday 01			Sunday 02
	PM	Night	AM	PM	Night	AM	PM	Night	AM	PM	Night	AM	PM	Night	AM	PM	Night	AM	PM	Night	AM
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 See all maps
Wave Height (m) & direction (?)	S	S	S	S	E	E	E	E	SSE	S	SSE	SSE	E	S	S	E	E	E	E	E	E
Period(s) (?)	7	8	7	7	10	10	10	10	6	8	6	6	10	7	6	8	8	8	8	8	9
Wave Graph (?)
kJ (?)	1	1	4	1	0	0	0	0	25	5	24	14	0	1	1	0	0	0	0	0	0
Wind (km/h)	NE	NE	NE	NE	ENE	ENE	ENE	ENE	ENE	ENE	ENE	ENE	ENE	NE	ENE	ENE	NE	ENE	ENE	ENE	ENE
Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy	cross- off	cross- off	cross- off	cross- off	cross- off	cross- off	cross- off	cross- off	cross- off	cross- off	cross- off	cross- off	cross- off	cross- off	cross- off	cross- off	cross- off	cross- off	cross- off	cross- off	cross- off
High Tide / height (m)		1:30AM 1.43			2:15AM 1.39			3:11AM 1.35			4:23AM 1.30				5:48AM 1.24		9:37PM 0.83	7:14AM 1.18		9:12PM 0.92	8:36AM 1.11
Low Tide / height (m)			10:55AM 0.28			12:06PM 0.28			1:04PM 0.28			1:47PM 0.29				2:19PM 0.32	12:25AM 0.80		2:44PM 0.40	2:22AM 0.65

	Mon 27		Tuesday 28			Wednesday 29			Thursday 30			Friday 31			Saturday 01			Sunday 02
Sunrise	-	-	6:39	-	-	6:39	-	-	6:39	-	-	6:39	-	-	6:41	-	-	6:41	-	-	6:41
Sunset	6:12	-	-	6:10	-	-	6:10	-	-	6:09	-	-	6:09	-	-	6:08	-	-	6:08	-	-

Rain (mm)	4	12	8	5	8	2	2	4	2	2	2	1	-	-	-	-	-	-	3	3	2
Temp. °C	24	23	24	24	25	26	26	26	26	27	26	27	28	26	28	28	25	27	27	25	26
Feels °C (?)	26	24	26	26	26	26	26	26	27	27	27	28	28	28	28	28	26	28	27	27	25

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

Quick surf report for Dadonghai:

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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.