Valnäs - Nord Koster Surf Break

Lat Long: 58.91° N 10.99° E

Valnäs - Nord Koster 48 hour detailed Surf Forecast

Issued: 1 am 14 Sep 2026 (local time)

Forecast update in  hr  min

Today's Valnäs - Nord Koster sea temperature is
16.0°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 (14 Sep):

  • Morning surf: Morning surf (14 Sep, local time) - 1ft (0.3m), 6s period with SW swell.
  • Afternoon surf: Afternoon surf (14 Sep, local time) - 1ft (0.3m), 6s period with SW swell.

The current surf forecast for Valnäs - Nord Koster at 8AM is: 0.3m 7s primary swell from a Southwest direction (forecast issued at 01:00am September 14). An open ocean swell of 0.1m 4s is not directed at the surf break. The wind direction is predicted to be offshore.

Time (CEST) & DateWave HeightWave Period
Morning (14 Sep)1ft (0.3m)6s
Afternoon (14 Sep)1ft (0.3m)6s
Evening (14 Sep)--

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


Short Range Forecast

Moderate rain (total 12mm), heaviest on Tue night. Very mild (max 16°C on Tue afternoon, min 12°C on Mon morning). Winds decreasing (strong winds from the S on Tue afternoon, calm by Wed night).

Monday
14
Tuesday
15
Wednesday
16
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)
0.4
SW
7
0.3
SW
7
0.3
SW
7
0.3
SW
6
0.3
SW
6
0.3
SW
6
0.3
SW
6
0.1
SW
6
0.8
SW
4
1.1
SW
5
1.1
SSW
5
1
SSW
5
1.3
S
5
1.8
S
6
1.5
SSW
6
1.6
SW
6
1.7
SW
6
2.1
SW
7
2.5
SW
7
2.3
SW
8
2.4
SW
8
1.6
SW
8
1.4
SW
7
1.6
SW
7
Wave Graph
Metric surfscale
Energy kJ
17
7
7
6
6
6
5
1
29
0
0
0
0
0
0
0
212
363
627
582
717
305
0
240
Wind (km/h)
10
SE
10
ESE
10
ESE
10
SSE
10
SW
15
SSW
15
SSW
20
SSW
35
SW
30
SSW
35
S
40
S
40
S
45
S
25
SSW
25
SW
35
SW
40
WSW
45
WSW
45
WSW
40
SW
35
WSW
30
WSW
15
NW
Wind State
off
cross-off
off
cross-off
cross
cross-off
cross-off
cross-off
cross
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross
cross
cross
cross
cross
cross
cross
cross-on
on
High Tide
7:54AM0.23m
8:32PM0.26m
8:59AM0.22m
9:42PM0.26m
10:06AM0.22m
10:49PM0.27m
Low Tide
00:55AM0.03m
1:07PM0.03m
1:48AM0.07m
2:01PM0.06m
2:51AM0.10m
3:04PM0.09m
clear
clear
part cloud
part cloud
cloud
part cloud
cloud
cloud
cloud
cloud
light rain
cloud
part cloud
light rain
mod rain
rain showers
clear
clear
clear
clear
clear
clear
part cloud
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:41
6:43
6:45
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
7:39
7:37
7:35
 mm
1
4
6
1
Temp °C
14
13
12
12
13
14
14
14
14
14
14
14
15
16
16
15
15
14
14
14
15
16
16
15
Feels °C
13
11
10
10
11
11
11
10
8
9
8
7
9
9
13
11
9
6
6
5
7
9
10
12
  • 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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