Valnäs - Nord Koster Surf Break

Lat Long: 58.91° N 10.99° E

Valnäs - Nord Koster 48 hour detailed Surf Forecast

Issued: 7 am 17 Oct 2026 (local time)

Forecast update in  hr  min

Today's Valnäs - Nord Koster sea temperature is
12.5°C
1.2° 

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 (17 Oct):

  • Morning surf: Morning surf (17 Oct, local time) - 2ft (0.6m), 3s period with NNE swell.
  • Afternoon surf: Afternoon surf (17 Oct, local time) - 1.5ft (0.5m), 3s period with NNE swell.
  • Evening surf: Evening surf (17 Oct, local time) - 0.5ft (0.1m), 6s period with SW swell.

The current surf forecast for Valnäs - Nord Koster at 10AM is: 0.6m 3s primary swell from a North-northeast direction and 0.3m 6s secondary swell from a Southwest direction (forecast issued at 07:00am October 17). The wind direction is predicted to be cross-shore.

Time (CEST) & DateWave HeightWave Period
Morning (17 Oct)2ft (0.6m)3s
Afternoon (17 Oct)1.5ft (0.5m)3s
Evening (17 Oct)0.5ft (0.1m)6s

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


Short Range Forecast

Mostly dry. Very mild (max 10°C on Sat afternoon, min 6°C on Mon night). Winds decreasing (fresh winds from the NNE on Sat morning, light winds from the NNE by Sun afternoon).

Saturday
17
Sunday
18
Monday
19
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
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)
0.3
SW
7
0.3
SW
6
0.7
NNE
3
0.5
NNE
3
0.3
N
3
0.1
SW
6
0.1
S
6
—
—
—
—
—
—
—
—
—
—
—
0.3
S
2
0.3
S
3
0.3
S
3
0.2
S
3
0.2
SSE
2
Wave Graph
Metric surfscale
Energy kJ
7
9
10
6
1
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Wind (km/h)
30
N
35
NNE
35
NE
25
NNE
25
NNE
15
NE
15
NE
15
NNE
15
NE
15
NE
15
NE
10
NNE
5
NNE
10
ESE
10
SE
15
SSE
15
SSE
15
SSE
15
SSE
15
S
10
S
10
SSE
15
ESE
Wind State
cross-on
cross
cross
cross
cross-on
cross
cross
cross
cross
cross
cross
cross-on
cross
cross-off
off
off
cross-off
off
cross-off
cross-off
cross-off
off
off
High Tide
11:31AM0.26m
00:08AM0.29m
12:19PM0.27m
00:53AM0.29m
1:02PM0.28m
Low Tide
5:30AM0.15m
5:16PM0.11m
6:40AM0.14m
6:27PM0.10m
7:04AM0.12m
7:08PM0.08m
clear
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
7:56
—
—
—
—
—
—
—
7:58
—
—
—
—
—
—
—
—
8:00
—
—
—
—
—
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
—
—
—
—
6:05
—
—
—
—
—
—
—
6:01
—
—
—
—
—
—
—
6:00
—
—
 mm
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
Temp °C
9
8
8
9
10
9
9
9
9
8
8
8
9
9
9
8
7
7
7
7
8
8
7
Feels °C
2
-1
0
2
4
4
4
4
4
3
4
5
6
6
5
4
3
3
3
3
5
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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