Valnäs - Nord Koster Surf Break

Lat Long: 58.91° N 10.99° E

Valnäs - Nord Koster 48 hour detailed Surf Forecast

Issued: 7 pm 22 Sep 2026 (local time)

Forecast update in  hr  min

Today's Valnäs - Nord Koster sea temperature is
15.4°C
1.6° 

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 (23 Sep):

    The current surf forecast for Valnäs - Nord Koster at 4AM is: 0.1m 5s primary swell from a Southwest direction (forecast issued at 07:00pm September 22). An open ocean swell of 0.4m 4s is not directed at the surf break. The wind direction is predicted to be offshore.


    Short Range Forecast

    Light rain (total 7mm), mostly falling on Wed night. Very mild (max 14°C on Wed afternoon, min 11°C on Thu afternoon). Winds decreasing (fresh winds from the NNE on Thu morning, calm by Thu night).

    Tue
    22
    Wednesday
    23
    Thursday
    24
    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
    Swell
    Height Map
    Height Map
    Height Map
    Height Map
    Height Map
    Height Map
    Height Map
    Height Map
    Wave
    Height (m)
    Direction
    Period (s)
    0.1
    SW
    6
    0.1
    SW
    5
    0.1
    SW
    5
    0.1
    SW
    5
    0.6
    SW
    4
    0.5
    SW
    5
    0.4
    SSW
    4
    0.4
    SSW
    4
    0.4
    SSW
    4
    0.4
    SW
    4
    0.4
    SSE
    3
    0.6
    S
    4
    0.3
    SW
    4
    0.4
    NNE
    3
    0.4
    SW
    5
    0.3
    SW
    5
    0.3
    SW
    5
    0.1
    SW
    6
    0.1
    SW
    6
    Wave Graph
    Metric surfscale
    Energy kJ
    1
    1
    1
    1
    0
    0
    0
    0
    0
    0
    0
    0
    3
    2
    9
    5
    4
    2
    1
    Wind (km/h)
    20
    SSW
    20
    SSW
    20
    S
    15
    S
    20
    SE
    20
    SSE
    20
    SE
    20
    SSE
    20
    SSW
    20
    SSE
    20
    SSE
    15
    E
    20
    ENE
    25
    NNE
    35
    NNE
    30
    NNE
    20
    NNE
    15
    NNE
    5
    NNE
    Wind State
    cross-off
    cross-off
    cross-off
    cross-off
    off
    off
    off
    cross-off
    cross-off
    cross-off
    off
    cross-off
    cross-off
    cross
    cross-on
    cross-on
    cross
    cross
    cross
    High Tide
    2:51PM0.29m
    3:18AM0.29m
    3:26PM0.29m
    3:50AM0.28m
    4:01PM0.28m
    Low Tide
    8:40PM0.05m
    8:54AM0.07m
    9:09PM0.04m
    9:18AM0.04m
    9:40PM0.02m
    clear
    clear
    clear
    part cloud
    cloud
    cloud
    cloud
    cloud
    cloud
    cloud
    light rain
    light rain
    light rain
    light rain
    cloud
    cloud
    cloud
    part cloud
    part cloud
    <span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
    7:01
    7:03
    <span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
    7:16
    7:14
    7:10
     mm
    1
    2
    3
    1
    Temp °C
    13
    13
    13
    13
    13
    13
    13
    14
    14
    14
    14
    14
    14
    13
    12
    11
    11
    12
    12
    Feels °C
    10
    9
    10
    10
    10
    10
    10
    11
    11
    12
    11
    12
    11
    9
    5
    5
    6
    9
    10
    • 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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