Valnäs - Nord Koster Surf Break

Lat Long: 58.91° N 10.99° E

Valnäs - Nord Koster 48 hour detailed Surf Forecast

Issued: 1 am 26 Aug 2026 (local time)

Forecast update in  hr  min

Today's Valnäs - Nord Koster sea temperature is
17.8°C
1.1° 

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

Short Range Forecast

Moderate rain (total 12mm), heaviest on Fri afternoon. Warm (max 21°C on Wed night, min 15°C on Fri morning). Winds increasing (calm on Wed morning, fresh winds from the E by Fri afternoon).

Wednesday
26
Thursday
27
Friday
28
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)
0.3
S
3
0.3
S
4
0.3
S
4
0.3
S
4
0.4
SE
4
0.4
SSE
4
0.4
S
4
0.5
S
5
0.7
S
6
1.3
SSE
6
1.3
S
7
1.2
S
6
Wave Graph
Metric surfscale
Energy kJ
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Wind (km/h)
10
ESE
10
E
10
ESE
5
WNW
10
WSW
10
W
5
NNW
10
ENE
10
E
15
ESE
20
SE
20
S
15
WSW
10
WNW
10
NNW
15
ENE
20
SE
25
ESE
30
ESE
25
E
35
E
35
SSE
20
SE
20
ESE
Wind State
cross-off
cross-off
cross-off
glassy
cross-on
cross-on
glassy
cross-off
cross-off
off
off
cross-off
cross
on
cross-on
cross-off
off
cross-off
cross-off
cross-off
cross-off
off
off
off
High Tide
4:26AM0.31m
4:37PM0.29m
5:00AM0.28m
5:14PM0.28m
5:35AM0.26m
5:54PM0.27m
Low Tide
10:01AM0.06m
10:13PM0.04m
10:29AM0.05m
10:47PM0.03m
11:00AM0.03m
clear
clear
clear
clear
clear
part cloud
clear
clear
part cloud
clear
clear
cloud
cloud
clear
part cloud
clear
part cloud
part cloud
cloud
cloud
light rain
light rain
cloud
cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:58
6:01
6:03
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
8:35
8:31
8:30
 mm
4
2
Temp °C
19
19
18
19
20
20
21
21
21
19
16
16
17
17
19
19
17
16
15
18
16
17
18
17
Feels °C
17
16
16
18
17
18
20
19
18
16
13
13
14
15
17
16
13
11
9
13
10
11
15
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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