Valnäs - Nord Koster Surf Break

Lat Long: 58.91° N 10.99° E

Valnäs - Nord Koster 48 hour detailed Surf Forecast

Issued: 1 pm 21 Aug 2026 (local time)

Forecast update in  hr  min

Today's Valnäs - Nord Koster sea temperature is
17.9° C
0.9° 

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

Short Range Forecast

Some drizzle, heaviest during Sat night. Warm (max 20°C on Sun afternoon, min 13°C on Fri night). Winds decreasing (fresh winds from the NNW on Sat afternoon, light winds from the N by Mon morning).

Fri
21
Saturday
22
Sunday
23
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
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
0.8
SSW
5
0.8
SSW
6
0.8
SSW
5
0.7
SSW
5
0.4
SW
7
0.6
SSW
6
0.1
W
9
0.3
SW
5
0.3
SW
5
0.7
NNW
4
0.6
NNW
3
0.4
NNW
3
0.6
N
3
0.7
NNW
4
0.7
N
4
0.6
N
4
0.5
N
4
0.3
NNW
3
0.1
SW
5
0.3
WSW
2
0.3
WSW
3
Wave Graph
Metric surfscale
Energy kJ
0
0
0
0
14
0
2
4
6
11
8
3
8
15
14
10
6
2
1
1
2
Wind (km/h)
25
SSW
30
SSW
20
SSW
15
SSE
15
SE
15
NE
25
NNE
30
N
25
N
35
NNW
35
NNW
30
NNW
30
N
35
N
35
N
30
N
25
N
20
NW
10
NNW
25
W
15
NW
Wind State
cross-off
cross-off
cross-off
cross-off
off
cross
cross
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
on
on
cross-on
on
High Tide
1:24PM0.26m
1:56AM0.31m
2:08PM0.27m
2:38AM0.32m
2:47PM0.29m
Low Tide
7:22PM0.09m
8:28AM0.11m
8:05PM0.08m
8:54AM0.10m
8:39PM0.07m
clear
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
clear
clear
cloud
light rain
cloud
cloud
part cloud
cloud
part cloud
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:48
5:50
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
8:49
8:45
8:44
 mm
1
Temp °C
16
16
16
17
16
15
13
13
15
16
17
17
16
14
14
14
16
18
20
18
19
Feels °C
11
10
12
15
14
13
8
7
9
9
10
11
10
7
7
8
11
13
17
13
16
  • 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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