Valnäs - Nord Koster Surf Break

Lat Long: 58.91° N 10.99° E

Valnäs - Nord Koster 48 hour detailed Surf Forecast

Issued: 1 pm 06 Sep 2026 (local time)

Forecast update in  hr  min

Today's Valnäs - Nord Koster sea temperature is
16.9°C
1.3° 

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 (06 Sep):

  • Morning surf: Morning surf (06 Sep, local time) - 2ft (0.6m), 7s period with SW swell.
  • Afternoon surf: Afternoon surf (06 Sep, local time) - 2ft (0.6m), 7s period with SW swell.
  • Evening surf: Evening surf (06 Sep, local time) - 4.5ft (1.3m), 7s period with SW swell.

The current surf forecast for Valnäs - Nord Koster at 6PM is: 0.6m 7s primary swell from a Southwest direction (forecast issued at 01:00pm September 06). The wind direction is predicted to be cross-offshore.

Time (CEST) & DateWave HeightWave Period
Morning (06 Sep)2ft (0.6m)7s
Afternoon (06 Sep)2ft (0.6m)7s
Evening (06 Sep)4.5ft (1.3m)7s

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


Short Range Forecast

Heavy rain (total 35mm), heaviest during Tue night. Very mild (max 17°C on Mon afternoon, min 14°C on Sun night). Mainly strong winds.

Sun
6
Monday
7
Tuesday
8
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)
0.6
SW
7
0.6
SW
7
0.6
SW
7
1
SW
7
1.9
SW
7
1.7
SW
6
1.3
SW
5
1.6
SW
6
1.5
SSW
6
1.4
SSW
6
1.3
SSW
6
1.4
SSW
5
1.5
SSW
6
1.7
SW
6
1.7
SW
6
1.6
SW
6
1.2
SW
6
1.1
SW
5
1.4
SW
6
1.5
SSW
6
1.4
SSW
6
Wave Graph
Metric surfscale
Energy kJ
28
28
28
86
321
217
0
0
0
0
0
0
0
0
217
177
0
0
0
0
0
Wind (km/h)
5
NNW
10
WSW
15
SSW
35
WSW
40
WSW
35
SW
35
SW
40
SSW
35
SSW
35
S
35
S
35
SSW
35
SW
40
SW
40
WSW
40
WSW
30
SW
35
SSW
40
SSW
35
SSW
30
S
Wind State
glassy
cross
cross-off
cross-on
cross
cross
cross
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross
cross
cross
cross
cross-off
cross-off
cross-off
cross-off
High Tide
1:53PM0.29m
2:26AM0.33m
2:38PM0.31m
3:09AM0.33m
3:23PM0.32m
Low Tide
7:25PM0.03m
8:02AM0.05m
8:18PM0.01m
8:47AM0.02m
9:06PM-0.01m
part cloud
part cloud
part cloud
part cloud
part cloud
light rain
mod rain
light rain
part cloud
cloud
part cloud
cloud
cloud
part cloud
part cloud
cloud
cloud
light rain
light rain
light rain
light rain
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:24
6:26
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
8:04
8:00
7:58
 mm
2
6
2
4
5
2
1
Temp °C
14
15
16
16
15
14
15
15
15
16
17
17
16
16
15
15
15
14
14
14
15
Feels °C
13
13
13
9
7
8
10
9
9
10
11
12
11
10
7
7
10
8
7
7
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
How to use the Wavefinder 

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