Surf Break

Lat Long: 18.22° N 109.52° E

Dadonghai Surf Forecast and Surf Report

Issued: 1 pm 05 Oct 2026 (local time)

Forecast update in  hr  min

Today's Dadonghai sea temperature is
30.0°C
2.0° 

Dadonghai surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.


Dadonghai surf forecast from 5 Oct 2026:

    Best Forecast Surf Conditions for Dadonghai this week:

    The largest open ocean swell (not directed at the beach) is 2.5m 10s period and expected on Thursday (Oct 08) at 5PM.


    Short Range Forecast

    Heavy rain (total 149mm), heaviest during Thu morning. Warm (max 29°C on Mon afternoon, min 23°C on Tue night). Wind will be generally light.

    Days 5-7 Weather Summary

    Heavy rain (total 199mm), heaviest during Thu afternoon. Warm (max 29°C on Sun morning, min 23°C on Sat morning). Wind will be generally light.

    Mon
    5
    Tuesday
    6
    Wednesday
    7
    Thursday
    8
    Friday
    9
    Saturday
    10
    Sunday
    11
    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
    0
    0
    0
    0
    0
    0
    0
    0
    0
    0
    0
    0
    0
    0
    0
    0
    0
    0
    Swell
    Height Map
    Height Map
    Height Map
    Height Map
    Height Map
    Height Map
    Height Map
    Height Map
    Wave
    Height (m)
    Direction
    Period (s)
    0.2
    ENE
    7
    1.5
    ENE
    6
    1.5
    ENE
    6
    1
    ENE
    7
    1.5
    ENE
    8
    2
    ENE
    9
    2.4
    ENE
    10
    2.2
    E
    10
    2.4
    ENE
    10
    2.5
    ENE
    10
    2.1
    E
    10
    1.9
    E
    9
    1.8
    E
    9
    2
    E
    9
    1.8
    ENE
    8
    1.9
    ENE
    8
    1.6
    E
    8
    1.7
    ENE
    8
    1.3
    ENE
    8
    1.6
    ENE
    8
    Wave Graph
    Metric surfscale
    Energy kJ
    0
    0
    0
    0
    0
    0
    0
    0
    0
    0
    0
    0
    0
    0
    0
    0
    0
    0
    0
    0
    Wind (km/h)
    5
    ESE
    10
    NNE
    5
    NE
    5
    ESE
    10
    NNE
    10
    N
    10
    NNE
    15
    NNE
    0
    N
    15
    NE
    15
    NE
    15
    ENE
    15
    NE
    15
    NE
    10
    NE
    15
    ENE
    10
    NNE
    15
    NE
    10
    E
    5
    N
    Wind State
    cross
    cross-off
    cross-off
    glassy
    off
    off
    off
    cross-off
    glassy
    cross-off
    cross-off
    cross-off
    cross-off
    cross-off
    cross-off
    cross-off
    cross-off
    cross-off
    cross
    off
    High Tide
    6:06AM1.45m
    7:29AM1.40m
    10:29PM0.76m
    8:41AM1.33m
    10:17PM0.86m
    9:44AM1.24m
    10:27PM0.99m
    10:41AM1.14m
    10:43PM1.14m
    11:36AM1.02m
    11:04PM1.27m
    Low Tide
    2:24PM0.16m
    3:13PM0.19m
    3:48PM0.25m
    1:29AM0.71m
    4:14PM0.34m
    3:09AM0.60m
    4:32PM0.45m
    4:19AM0.47m
    4:44PM0.54m
    5:17AM0.36m
    4:51PM0.63m
    thunderstorm
    thunderstorm
    thunderstorm
    thunderstorm
    thunderstorm
    heavy rain
    mod rain
    heavy rain
    heavy rain
    heavy rain
    rain showers
    thunderstorm
    thunderstorm
    thunderstorm
    light rain
    part cloud
    clear
    clear
    clear
    clear
    <span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
    —
    —
    6:33
    —
    —
    6:33
    —
    —
    6:33
    —
    —
    6:33
    —
    —
    6:33
    —
    —
    6:33
    —
    —
    <span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
    6:27
    —
    —
    6:27
    —
    —
    6:25
    —
    —
    6:24
    —
    —
    6:23
    —
    —
    6:22
    —
    —
    6:22
    —
     mm
    5
    16
    3
    13
    12
    18
    7
    19
    56
    118
    5
    2
    47
    22
    5
    —
    —
    —
    —
    —
    Temp °C
    29
    27
    28
    27
    25
    23
    24
    25
    24
    24
    24
    27
    25
    25
    26
    28
    26
    29
    30
    27
    Feels °C
    33
    30
    32
    32
    29
    26
    27
    27
    26
    28
    26
    29
    27
    27
    29
    30
    28
    30
    31
    30
    • Map Icons:
    • Break
    • Live Wave Height (m)
    • Live Wind Speed (km/h)
    • Surf Rating (10 Max)
    • Ocean Swells (m)
    • Wind Speed (km/h)
    Map placeholder
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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 16 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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