Valnäs - Nord Koster Surf Break

Lat Long: 58.91° N 10.99° E

Valnäs - Nord Koster 48 hour detailed Surf Forecast

Issued: 7 am 12 Oct 2026 (local time)

Forecast update in  hr  min

Today's Valnäs - Nord Koster sea temperature is
13.5°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 (12 Oct):

  • Morning surf: Morning surf (12 Oct, local time) - 1.5ft (0.4m), 3s period with NNE swell.
  • Afternoon surf: Afternoon surf (12 Oct, local time) - 0.5ft (0.1m), 6s period with SW swell.
  • Evening surf: Evening surf (12 Oct, local time) - 0.5ft (0.1m), 6s period with SW swell.

The current surf forecast for Valnäs - Nord Koster at 12PM is: 0.1m 6s primary swell from a Southwest direction and 0.3m 3s secondary swell from a North direction (forecast issued at 07:00am October 12). The wind direction is predicted to be cross-shore.

Time (CEST) & DateWave HeightWave Period
Morning (12 Oct)1.5ft (0.4m)3s
Afternoon (12 Oct)0.5ft (0.1m)6s
Evening (12 Oct)0.5ft (0.1m)6s

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


Short Range Forecast

Moderate rain (total 16mm), heaviest on Tue night. Very mild (max 12°C on Tue night, min 5°C on Mon morning). Winds decreasing (near gales from the S on Tue night, calm by Wed afternoon).

Monday
12
Tuesday
13
Wednesday
14
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
1
1
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)
0.5
N
3
0.4
NNE
3
0.3
NNE
3
0.1
SW
6
0.1
SW
6
0.1
SW
6
0.1
SW
6
0.1
SW
6
0.1
SW
6
0.1
SW
6
0.1
SW
5
1.1
S
4
0.6
SW
6
0.9
SW
7
3
S
8
2.5
SW
8
2
SW
8
1.6
SW
8
1.3
SW
8
1.1
SW
8
1
SW
7
0.7
SW
7
0.7
SW
8
Wave Graph
Metric surfscale
Energy kJ
6
3
2
1
1
1
1
1
1
1
1
0
24
75
0
943
519
324
179
141
105
54
55
Wind (km/h)
25
NNE
20
NNE
20
NNE
15
NNE
10
NNE
10
ENE
15
E
15
ESE
15
SE
25
SE
30
SSE
35
SSE
45
SSE
50
SSE
55
S
45
W
35
WNW
30
NNW
20
NNW
5
NNW
5
S
15
SSE
25
SSE
Wind State
cross-on
cross-on
cross
cross-on
cross
cross-off
cross-off
off
off
off
off
off
off
off
cross-off
cross-on
on
on
cross-on
glassy
cross-off
off
cross-off
High Tide
6:29AM0.24m
7:01PM0.27m
7:25AM0.23m
8:06PM0.26m
8:29AM0.23m
9:14PM0.27m
Low Tide
11:52AM0.03m
00:27AM0.06m
12:39PM0.06m
1:17AM0.09m
1:31PM0.08m
clear
clear
clear
clear
clear
clear
clear
clear
cloud
cloud
cloud
cloud
light rain
light rain
heavy rain
cloud
cloud
clear
clear
clear
clear
cloud
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
7:43
—
—
—
—
—
—
—
7:46
—
—
—
—
—
—
—
7:48
—
—
—
—
—
—
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
—
—
—
—
6:19
—
—
—
—
—
—
—
6:15
—
—
—
—
—
—
—
6:14
—
—
 mm
—
—
—
—
—
—
—
—
—
—
—
—
1
2
13
—
—
—
—
—
—
—
—
Temp °C
6
5
5
6
7
7
6
6
6
6
8
9
10
10
12
12
11
10
10
10
12
12
12
Feels °C
0
-1
-1
1
3
3
2
2
1
0
1
1
1
0
2
3
3
3
5
8
10
8
7
  • 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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