Valnäs - Nord Koster Surf Break

Lat Long: 58.91° N 10.99° E

Valnäs - Nord Koster 48 hour detailed Surf Forecast

Issued: 1 am 13 Sep 2026 (local time)

Forecast update in  hr  min

Today's Valnäs - Nord Koster sea temperature is
16.4°C
1.6° 

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


Time (CEST) & DateWave HeightWave Period
Morning (13 Sep)--
Afternoon (13 Sep)2ft (0.6m)6s
Evening (13 Sep)2ft (0.6m)7s

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


Short Range Forecast

Moderate rain (total 11mm), heaviest on Tue afternoon. Very mild (max 16°C on Sun afternoon, min 13°C on Sun night). Winds increasing (calm on Sun morning, strong winds from the S by Tue afternoon).

Sunday
13
Monday
14
Tuesday
15
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)
1.4
SW
6
1.3
SW
6
1.1
SW
6
0.8
SW
6
0.6
SW
6
0.6
SW
7
0.6
SW
7
0.4
SW
7
0.4
SW
7
0.3
SW
7
0.3
SW
6
0.3
SW
6
0.3
SW
6
0.2
SSW
6
0.1
SW
6
0.1
SW
6
0.3
SW
6
1.1
SW
5
1
SSW
5
1.1
SSW
5
1.6
S
5
2
S
6
1.8
SSW
6
1.4
SSW
6
Wave Graph
Metric surfscale
Energy kJ
0
0
0
45
33
29
31
17
17
7
7
6
6
0
1
1
5
0
0
0
0
0
0
0
Wind (km/h)
35
SW
30
SW
15
WSW
5
ENE
5
SSW
10
SSW
15
S
10
ESE
5
NE
10
ENE
10
E
5
S
10
SW
15
SSW
15
SSW
15
S
20
SSW
30
SSW
35
S
40
S
45
S
45
SSE
35
SSW
35
SW
Wind State
cross
cross
cross-on
glassy
cross-off
cross-off
cross-off
cross-off
cross
cross-off
cross-off
cross-off
cross
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross
High Tide
6:55AM0.24m
7:27PM0.27m
7:54AM0.23m
8:32PM0.26m
8:59AM0.22m
9:42PM0.26m
Low Tide
00:08AM0.00m
12:20PM0.01m
00:55AM0.03m
1:07PM0.03m
1:48AM0.07m
2:01PM0.06m
part cloud
part cloud
clear
clear
clear
part cloud
cloud
clear
clear
part cloud
cloud
cloud
cloud
part cloud
part cloud
cloud
cloud
cloud
cloud
light rain
cloud
light rain
light rain
light rain
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:39
6:41
6:43
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
7:43
7:39
7:37
 mm
2
3
3
3
Temp °C
15
15
15
15
16
15
15
15
14
13
13
14
14
14
14
14
14
14
14
15
15
15
16
16
Feels °C
10
10
13
16
16
13
12
13
13
11
12
13
12
11
12
11
11
9
8
8
7
8
11
11
  • 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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