Valnäs - Nord Koster Surf Break

Lat Long: 58.91° N 10.99° E

Valnäs - Nord Koster 48 hour detailed Surf Forecast

Issued: 1 pm 20 Aug 2026 (local time)

Forecast update in  hr  min

Today's Valnäs - Nord Koster sea temperature is
18.1° C
1.0° 

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


Time (CEST) & DateWave HeightWave Period
Morning (20 Aug)1ft (0.3m)6s
Afternoon (20 Aug)1ft (0.3m)6s
Evening (20 Aug)--

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


Short Range Forecast

Light rain (total 4mm), mostly falling on Sat afternoon. Very mild (max 17°C on Sat afternoon, min 13°C on Sat morning). Winds increasing (calm on Fri night, fresh winds from the NNW by Sat afternoon).

Thu
20
Friday
21
Saturday
22
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)
0.3
SW
6
0.3
SW
6
0.6
SSW
3
0.9
SW
4
1.2
SW
6
1.4
SW
6
1.2
SW
6
1.1
SW
6
1.1
SW
6
0.9
SSW
6
0.9
SW
6
0.7
SSW
5
0.1
SW
8
0.6
SW
6
0.6
SW
6
0.1
W
9
0.3
SW
5
0.6
NNW
3
0.6
NNW
3
0.6
NNW
4
0.7
NNW
4
Wave Graph
Metric surfscale
Energy kJ
6
6
0
0
0
0
0
0
0
0
0
0
3
27
23
1
5
8
8
10
11
Wind (km/h)
10
W
20
SW
25
SSW
30
SSW
35
SSW
35
SSW
35
SSW
35
SW
30
SSW
30
S
20
SSW
5
SSW
10
E
15
ENE
20
NE
20
NNE
25
N
40
NNW
30
NNW
30
N
30
N
Wind State
cross-on
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross
cross-off
cross-off
cross-off
glassy
cross-off
cross-off
cross
cross-on
cross-on
on
on
cross-on
cross-on
High Tide
12:35PM0.24m
1:09AM0.30m
1:24PM0.26m
1:56AM0.31m
2:08PM0.27m
Low Tide
6:21PM0.09m
7:50AM0.10m
7:22PM0.09m
8:28AM0.11m
8:05PM0.08m
cloud
cloud
cloud
part cloud
clear
clear
clear
clear
part cloud
cloud
clear
clear
part cloud
clear
cloud
part cloud
part cloud
part cloud
thunderstorm
light rain
light rain
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:47
5:48
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
8:52
8:49
8:45
 mm
1
1
1
Temp °C
15
16
16
16
16
16
15
15
16
16
15
16
16
14
14
13
15
16
17
15
15
Feels °C
13
12
11
10
9
10
8
8
10
11
11
15
14
11
11
9
9
9
11
9
9
  • 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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