Valnäs - Nord Koster Surf Break

Lat Long: 58.91° N 10.99° E

Valnäs - Nord Koster 48 hour detailed Surf Forecast

Issued: 1 pm 19 Sep 2026 (local time)

Forecast update in  hr  min

Today's Valnäs - Nord Koster sea temperature is
15.6°C
1.5° 

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 (19 Sep):

  • Evening surf: Evening surf (19 Sep, local time) - 8ft (2.5m), 8s period with SW swell.

The current surf forecast for Valnäs - Nord Koster at 8PM is: 2.5m 8s primary swell from a Southwest direction (forecast issued at 01:00pm September 19). An open ocean swell of 0.6m 6s is not directed at the surf break. The wind direction is predicted to be cross-shore.

Time (CEST) & DateWave HeightWave Period
Morning (19 Sep)--
Afternoon (19 Sep)--
Evening (19 Sep)8ft (2.5m)8s

Table - waves today at Valnäs - Nord Koster. (Swell directed towards the surf break)


Short Range Forecast

Mostly dry. Very mild (max 18°C on Mon afternoon, min 11°C on Mon night). Winds decreasing (near gales from the SW on Sat afternoon, calm by Tue morning).

Sat
19
Sunday
20
Monday
21
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
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
2.1
SW
7
2.3
SW
7
3
SW
8
2.5
SW
8
2.3
SW
8
2.2
SW
7
2.1
SW
7
2
SW
7
2.1
SW
7
2.2
SW
7
2.1
SW
8
1.8
SW
7
1.7
WSW
7
1.4
SW
7
1.1
SW
7
0.9
SW
7
0.8
SW
7
0.6
SW
7
0.5
SW
7
0.4
SW
7
0.3
SW
7
Wave Graph
Metric surfscale
Energy kJ
0
0
941
860
611
489
422
345
408
503
481
349
259
200
134
86
62
41
22
11
7
Wind (km/h)
50
SW
50
SW
55
SW
50
WSW
45
WSW
45
WSW
45
WSW
45
WSW
45
WSW
45
WSW
45
W
45
WNW
40
WNW
30
NW
20
NW
20
NNW
25
NNW
25
NNW
20
NNW
20
NNE
20
NE
Wind State
cross-off
cross
cross
cross
cross-on
cross
cross
cross
cross
cross
cross-on
cross-on
cross-on
on
on
on
cross-on
cross-on
on
cross-on
cross
High Tide
12:54PM0.27m
1:28AM0.31m
1:37PM0.28m
2:08AM0.31m
2:15PM0.29m
Low Tide
7:02PM0.10m
7:59AM0.12m
7:42PM0.08m
8:18AM0.11m
8:12PM0.07m
light rain
cloud
cloud
clear
clear
cloud
clear
clear
part cloud
part cloud
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:54
6:56
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
7:25
7:22
7:20
 mm
1
Temp °C
15
16
16
15
14
14
13
13
14
14
16
15
14
15
15
14
14
16
18
17
13
Feels °C
7
8
6
5
5
5
4
4
5
5
7
5
5
8
10
9
7
9
12
12
8
  • 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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