Valnäs - Nord Koster Surf Break

Lat Long: 58.91° N 10.99° E

Valnäs - Nord Koster 48 hour detailed Surf Forecast

Issued: 1 am 04 Aug 2026 (local time)

Forecast update in  hr  min

Today's Valnäs - Nord Koster sea temperature is
17.5° C
0.0° 

Valnäs - Nord Koster surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.


How big are the waves at Valnäs - Nord Koster today (04 Aug):

    The current surf forecast for Valnäs - Nord Koster at 4AM is: 0.6m 5s primary swell from a Southwest direction (forecast issued at 01:00am August 04). An open ocean swell of 0.7m 5s is not directed at the surf break. The wind direction is predicted to be cross-offshore.


    Short Range Forecast

    Moderate rain (total 15mm), heaviest on Wed morning. Very mild (max 18°C on Tue night, min 16°C on Tue morning). Winds increasing (calm on Tue afternoon, strong winds from the SW by Thu morning).

    Tuesday
    4
    Wednesday
    5
    Thursday
    6
    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
    5 AM
    8 AM
    11 AM
    2 PM
    5 PM
    8 PM
    11 PM
    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
    Swell
    Height Map
    Height Map
    Height Map
    Height Map
    Height Map
    Height Map
    Height Map
    Height Map
    Height Map
    Height Map
    Wave
    Height (m)
    Direction
    Period (s)
    0.7
    SW
    5
    0.6
    SW
    5
    0.5
    SW
    4
    0.4
    SW
    4
    0.2
    SSW
    4
    0.2
    SSW
    3
    0.3
    ESE
    2
    0.6
    SSE
    4
    0.9
    SSW
    6
    1
    S
    6
    0.9
    SSE
    5
    0.7
    S
    5
    0.6
    S
    5
    0.6
    S
    5
    0.9
    SSW
    4
    1.4
    SW
    6
    1.7
    SW
    6
    1.8
    SW
    6
    2
    SSW
    6
    2.2
    SSW
    7
    2.4
    SSW
    7
    2.3
    SW
    8
    3
    SW
    8
    Wave Graph
    Metric surfscale
    Energy kJ
    0
    14
    0
    0
    0
    0
    0
    0
    0
    0
    0
    0
    0
    0
    0
    0
    0
    0
    239
    0
    0
    0
    0
    1009
    Wind (km/h)
    25
    S
    20
    SSW
    15
    SSW
    10
    SSW
    10
    SW
    5
    N
    20
    ENE
    25
    ESE
    35
    S
    20
    SSW
    15
    S
    15
    SSE
    15
    SSE
    15
    SSW
    20
    SSW
    30
    SW
    40
    SW
    40
    SW
    45
    SW
    45
    SW
    45
    SSW
    45
    SW
    40
    SW
    30
    WSW
    Wind State
    cross-off
    cross-off
    cross-off
    cross-off
    cross
    glassy
    cross-off
    off
    cross-off
    cross-off
    cross-off
    cross-off
    cross-off
    cross-off
    cross-off
    cross
    cross
    cross
    cross
    cross
    cross-off
    cross-off
    cross
    cross
    High Tide
    10:35AM0.18m
    11:14PM0.23m
    11:34AM0.19m
    00:12AM0.25m
    12:28PM0.20m
    Low Tide
    2:59AM0.08m
    3:07PM0.05m
    4:00AM0.09m
    4:08PM0.06m
    5:08AM0.10m
    5:16PM0.06m
    cloud
    clear
    clear
    part cloud
    cloud
    cloud
    cloud
    cloud
    cloud
    light rain
    light rain
    light rain
    light rain
    rain showers
    part cloud
    cloud
    rain showers
    clear
    clear
    cloud
    rain showers
    thunderstorm
    clear
    thunderstorm
    <span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
    5:09
    5:11
    5:13
    <span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
    9:32
    9:30
    9:28
     mm
    1
    3
    3
    2
    1
    1
    1
    1
    1
    Temp °C
    16
    16
    16
    16
    17
    17
    18
    18
    18
    17
    17
    17
    17
    18
    17
    17
    17
    16
    16
    16
    16
    16
    16
    18
    Feels °C
    12
    13
    14
    14
    15
    16
    15
    13
    14
    16
    16
    16
    16
    18
    16
    14
    12
    9
    8
    8
    8
    8
    9
    13
    • 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
    How to use the Wavefinder 

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