Valnäs - Nord Koster Surf Break

Lat Long: 58.91° N 10.99° E

Valnäs - Nord Koster 48 hour detailed Surf Forecast

Issued: 1 am 10 Oct 2026 (local time)

Forecast update in  hr  min

Today's Valnäs - Nord Koster sea temperature is
14.0°C
1.8° 

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 (10 Oct):

  • Morning surf: Morning surf (10 Oct, local time) - 2.5ft (0.8m), 4s period with NNE swell.
  • Afternoon surf: Afternoon surf (10 Oct, local time) - 1.5ft (0.4m), 8s period with SW swell.
  • Evening surf: Evening surf (10 Oct, local time) - 1.5ft (0.4m), 8s period with SW swell.

The current surf forecast for Valnäs - Nord Koster at 7AM is: 0.8m 4s primary swell from a North-northeast direction (forecast issued at 01:00am October 10). An open ocean swell of 0.3m 5s is not directed at the surf break. The wind direction is predicted to be cross-shore.

Time (CEST) & DateWave HeightWave Period
Morning (10 Oct)2.5ft (0.8m)4s
Afternoon (10 Oct)1.5ft (0.4m)8s
Evening (10 Oct)1.5ft (0.4m)8s

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


Short Range Forecast

Heavy rain (total 25mm), heaviest during Sat afternoon. Mild temperatures (max 8°C on Mon night, min 4°C on Sat afternoon). Winds decreasing (strong winds from the NNW on Sat afternoon, light winds from the SE by Mon night).

Saturday
10
Sunday
11
Monday
12
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)
0.1
SW
5
0.1
SW
5
0.8
NNE
4
0.8
N
4
0.4
SW
8
0.4
SW
8
0.4
SW
8
0.4
SW
7
0.4
SW
8
0.7
N
4
1
N
4
1
N
4
0.9
N
4
0.8
N
4
0.7
N
4
0.5
N
3
0.3
N
3
0.1
SW
7
0.1
SW
6
0.1
SW
6
0.1
SW
6
0.1
SW
6
0.1
SW
6
0.1
SW
6
Wave Graph
Metric surfscale
Energy kJ
1
1
16
18
22
20
20
19
14
13
33
35
28
21
15
6
2
2
2
2
1
1
1
1
Wind (km/h)
30
E
35
ENE
35
NE
40
N
45
NNW
30
N
25
N
25
N
30
N
35
N
40
N
40
NNE
35
NNE
35
N
35
N
25
NNE
25
NNE
25
NNE
25
NNE
25
NNE
15
NNE
10
ENE
10
SE
15
SSE
Wind State
cross-off
cross-off
cross
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross
cross-on
cross-on
cross-off
off
off
High Tide
4:56AM0.26m
5:15PM0.29m
5:40AM0.25m
6:05PM0.28m
6:29AM0.24m
7:01PM0.27m
Low Tide
10:29AM-0.01m
11:00PM-0.00m
11:10AM0.01m
11:43PM0.03m
11:52AM0.03m
light rain
mod rain
light rain
light rain
mod rain
light rain
light rain
light rain
light rain
light rain
light rain
light rain
light rain
cloud
light rain
light rain
cloud
clear
clear
clear
part cloud
cloud
cloud
cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
—
7:39
—
—
—
—
—
—
—
7:41
—
—
—
—
—
—
—
7:43
—
—
—
—
—
—
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
—
—
—
—
—
6:24
—
—
—
—
—
—
—
6:22
—
—
—
—
—
—
—
6:19
—
—
 mm
2
6
3
4
7
1
1
1
1
1
1
2
1
—
1
1
—
—
—
—
—
—
—
—
Temp °C
8
7
7
7
4
5
5
5
5
5
5
5
5
5
5
6
6
5
5
5
6
7
7
7
Feels °C
1
-1
-1
-2
-6
-2
-2
-2
-2
-3
-4
-4
-3
-3
-3
0
-1
-2
-2
-1
1
3
4
3
  • 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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