Valnäs - Nord Koster Surf Break

Lat Long: 58.91° N 10.99° E

Valnäs - Nord Koster 48 hour detailed Surf Forecast

Issued: 1 am 28 Aug 2026 (local time)

Forecast update in  hr  min

Today's Valnäs - Nord Koster sea temperature is
17.8°C
1.2° 

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

Short Range Forecast

Heavy rain (total 29mm), heaviest during Fri night. Very mild (max 19°C on Fri afternoon, min 15°C on Fri morning). Winds decreasing (strong winds from the ESE on Fri night, light winds from the SSE by Sun night).

Friday
28
Saturday
29
Sunday
30
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)
0.2
S
4
0.4
SSE
3
0.3
S
4
0.4
SSE
5
0.5
S
5
0.6
SSE
6
0.7
S
6
1.2
SSE
6
0.8
S
6
0.1
SW
7
0.7
S
5
1.2
S
5
1.2
SSW
5
1.1
SSW
5
1.1
SSW
5
1.2
SW
5
1.4
SW
6
1.3
SW
6
1
WSW
6
0.8
SW
5
0.6
SW
7
0.4
SW
7
0.4
SW
7
0.5
SW
6
Wave Graph
Metric surfscale
Energy kJ
0
0
0
0
0
0
0
0
0
2
0
0
0
0
0
0
0
0
70
35
28
16
15
19
Wind (km/h)
20
SE
20
ESE
30
E
35
E
35
E
25
SSE
40
ESE
35
ESE
25
SSE
20
SW
30
SSE
35
S
25
SSW
25
S
25
SSW
30
SW
30
WSW
25
SW
20
SSE
25
S
20
SE
20
ESE
10
ESE
10
SSE
Wind State
off
off
cross-off
cross-off
cross-off
off
cross-off
off
off
cross
cross-off
cross-off
cross-off
cross-off
cross-off
cross
cross
cross
cross-off
cross-off
off
off
off
cross-off
High Tide
5:35AM0.26m
5:54PM0.27m
6:12AM0.23m
6:38PM0.25m
6:53AM0.21m
7:31PM0.24m
Low Tide
11:00AM0.03m
11:24PM0.03m
11:35AM0.02m
00:03AM0.03m
12:14PM0.02m
part cloud
cloud
cloud
cloud
cloud
light rain
mod rain
mod rain
light rain
rain showers
clear
rain showers
rain showers
rain showers
clear
clear
part cloud
cloud
cloud
light rain
cloud
light rain
rain showers
light rain
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:03
6:05
6:07
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
8:30
8:27
8:23
 mm
1
9
6
3
1
1
1
1
1
1
1
1
Temp °C
18
16
15
17
19
18
15
15
15
16
16
17
17
17
17
17
17
17
17
17
17
17
17
17
Feels °C
14
12
9
11
13
14
8
9
11
12
12
12
13
14
13
12
12
13
14
13
15
15
17
17
  • 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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