- Forecast
- Maps
- Live
- Weather State
- Spot Information
Surf Forecasts:
Dadonghai surfForecast / Hainan / China
48hr Weather and Surf, issued 7 am Saturday 21 Mar 2026 CSTForecast 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
24.1° C
(Which is normal for this time of year)How big are the waves at Dadonghai today?
The current surf forecast for Dadonghai at 11AM is: 0.6m 4s primary swell from a East direction (forecast issued at 07:00am March 21). An open ocean swell of 0.2m 13s is not directed at the surf break, a second open ocean swell of 0.1m 14s is not directed at the surf break. The wind direction is predicted to be cross-shore.
| Time (CST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (21 Mar) | 1.5ft (0.4m) | 4s |
| Afternoon (21 Mar) | 1.5ft (0.5m) | 4s |
| Evening (21 Mar) | 2ft (0.6m) | 4s |
Table - waves today at Dadonghai. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Saturday 21 | Sunday 22 | Monday 23 | Tue 24 | |||||||||||||||||||||
| 5 AM | 8 AM | 11 AM | 2 PM | 5 PM | 8 PM | 11 PM | 2 AM | 5 AM | 8 AM | 11 AM | 2 PM | 5 PM | 8 PM | 11 PM | 2 AM | 5 AM | 8 AM | 11 AM | 2 PM | 5 PM | 8 PM | 11 PM | 2 AM | |
Rating (10 max) | ||||||||||||||||||||||||
Swell Height Map |    |    |    |    | ||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||
| Period(s) (?) | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 7 | 4 | 4 | 4 | 4 | 4 | 4 | 7 | 7 | 7 | 7 | 7 | 7 | 7 | 7 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 5 | 5 | 9 | 5 | 6 | 9 | 8 | 8 | 9 | 0 | 13 | 9 | 7 | 6 | 4 | 6 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross- off | cross- off | cross | cross- on | cross- on | cross | cross- off | cross- off | cross- off | cross- off | cross | cross- on | cross- on | cross- off | cross- off | cross- off | cross- off | cross- off | cross | cross- on | cross- on | cross | cross- off | cross- off |
High Tide / height (m) | 12:14PM 1.20 | 1:22AM 0.99 | 12:41PM 1.36 | 2:26AM 0.82 | 1:16PM 1.48 | |||||||||||||||||||
Low Tide / height (m) | 6:13AM 0.56 | 6:57PM 0.28 | 6:18AM 0.64 | 8:03PM 0.22 | 6:15AM 0.67 | 9:15PM 0.19 | ||||||||||||||||||
Saturday 21 | Sunday 22 | Monday 23 | Tue 24 | |||||||||||||||||||||
| Sunrise | - | 6:46 | - | - | - | - | - | - | - | 6:45 | - | - | - | - | - | - | - | 6:43 | - | - | - | - | - | - |
| Sunset | - | - | - | - | 6:52 | - | - | - | - | - | - | - | 6:52 | - | - | - | - | - | - | - | 6:52 | - | - | - |
 |  | | | | | | | | | | | | | | | | | | | | | | | |
Rain (mm) | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| Temp. °C | 21 | 22 | 26 | 27 | 26 | 24 | 22 | 22 | 21 | 22 | 25 | 26 | 25 | 23 | 23 | 22 | 22 | 22 | 26 | 26 | 25 | 23 | 22 | 21 |
| Feels °C (?) | 23 | 24 | 26 | 26 | 26 | 25 | 23 | 24 | 23 | 24 | 25 | 26 | 26 | 25 | 25 | 24 | 24 | 23 | 26 | 26 | 25 | 25 | 24 | 23 |
- Map Icons:
Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
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.
Nearest