Valnäs - Nord Koster Surf Break

Lat Long: 58.91° N 10.99° E

Valnäs - Nord Koster 48 hour detailed Surf Forecast

Issued: 1 pm 15 Aug 2026 (local time)

Forecast update in  hr  min

Today's Valnäs - Nord Koster sea temperature is
17.7° C
0.3° 

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 (15 Aug)0.5ft (0.1m)4s
Afternoon (15 Aug)--
Evening (15 Aug)7ft (2.2m)8s

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


Short Range Forecast

Light rain (total 3mm), mostly falling on Tue morning. Warm (max 20°C on Sat night, min 13°C on Tue morning). Winds decreasing (strong winds from the WSW on Sat night, light winds from the NNE by Tue morning).

Sat
15
Sunday
16
Monday
17
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)
0.1
SW
5
0.5
S
4
0.8
SSW
5
2.1
SW
7
2.5
SW
8
1.6
SW
8
1.2
SW
8
0.9
SW
7
0.7
SW
7
0.5
SW
6
0.1
SW
8
0.1
SW
7
0.1
SW
8
0.5
SW
8
0.7
SW
7
0.6
SW
6
0.4
SW
6
0.5
N
3
0.1
W
8
0.2
SSW
5
0.2
SSW
5
Wave Graph
Metric surfscale
Energy kJ
1
0
0
452
754
281
164
89
47
16
2
2
2
32
52
24
12
5
1
0
0
Wind (km/h)
20
SSW
25
SSW
20
S
30
SW
40
WSW
40
NNW
30
NNW
25
N
10
NNW
20
WSW
20
WSW
20
SSW
20
SE
20
SE
10
ENE
20
ENE
20
ENE
15
NNE
25
NNW
20
NW
20
WNW
Wind State
cross-off
cross-off
cross-off
cross
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross
cross-off
off
off
cross-off
cross-off
cross-off
cross-on
cross-on
on
on
High Tide
7:57PM0.28m
8:26AM0.24m
9:01PM0.27m
9:30AM0.22m
10:07PM0.26m
Low Tide
12:52PM-0.00m
1:27AM0.01m
1:41PM0.01m
2:24AM0.04m
2:35PM0.04m
cloud
clear
clear
clear
clear
part cloud
part cloud
clear
clear
clear
part cloud
cloud
part cloud
cloud
cloud
cloud
cloud
cloud
clear
clear
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:35
5:37
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
9:05
9:02
9:00
 mm
Temp °C
17
17
18
20
18
17
15
15
16
17
18
18
17
16
16
15
15
16
17
17
17
Feels °C
15
14
15
15
11
11
9
10
14
13
15
15
14
13
14
11
10
13
12
13
14
  • 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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