Valnäs - Nord Koster Surf Break

Lat Long: 58.91° N 10.99° E

Valnäs - Nord Koster 48 hour detailed Surf Forecast

Issued: 1 pm 02 Aug 2026 (local time)

Forecast update in  hr  min

Today's Valnäs - Nord Koster sea temperature is
17.8° C
0.2° 

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


How big are the waves at Valnäs - Nord Koster today (02 Aug):

  • Morning surf: Morning surf (02 Aug, local time) - 5ft (1.6m), 6s period with SW swell.
  • Afternoon surf: Afternoon surf (02 Aug, local time) - 6ft (1.9m), 6s period with SW swell.
  • Evening surf: Evening surf (02 Aug, local time) - 6ft (1.8m), 7s period with SW swell.

The current surf forecast for Valnäs - Nord Koster at 8PM is: 2.0m 7s primary swell from a Southwest direction (forecast issued at 01:00pm August 02). The wind direction is predicted to be cross-shore.

Time (CEST) & DateWave HeightWave Period
Morning (02 Aug)5ft (1.6m)6s
Afternoon (02 Aug)6ft (1.9m)6s
Evening (02 Aug)6ft (1.8m)7s

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


Short Range Forecast

Moderate rain (total 10mm), heaviest on Tue night. Warm (max 21°C on Tue night, min 14°C on Mon morning). Winds decreasing (strong winds from the SW on Sun night, calm by Tue afternoon).

Sun
2
Monday
3
Tuesday
4
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)
1.6
SW
6
1.8
SW
6
2.1
SW
7
2
SW
7
1.6
SW
7
1.5
SW
6
1.3
SW
6
1.3
WSW
6
1.1
SW
6
0.8
SW
5
1.1
SW
5
1.2
SW
5
0.8
WSW
5
1
SW
5
0.9
SW
5
0.7
SW
5
0.4
SSW
4
0.4
SW
4
0.2
SSW
4
0.2
S
3
Wave Graph
Metric surfscale
Energy kJ
154
0
363
347
221
177
132
108
69
0
0
0
32
0
0
22
0
0
0
0
0
Wind (km/h)
45
WSW
45
SW
45
SW
50
SW
35
WSW
40
WSW
35
WSW
25
W
20
WSW
30
SW
30
SSW
30
SSW
30
SSW
30
SSW
25
SSW
20
SSW
15
SSW
10
SSW
5
NNW
10
ENE
15
SE
Wind State
cross
cross
cross
cross
cross-on
cross-on
cross-on
cross-on
cross-on
cross
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
glassy
cross-off
off
High Tide
8:37AM0.20m
9:12PM0.23m
9:34AM0.18m
10:14PM0.23m
10:35AM0.18m
Low Tide
1:29PM0.04m
2:07AM0.07m
2:14PM0.05m
2:59AM0.08m
3:07PM0.05m
clear
clear
clear
clear
clear
clear
part cloud
clear
clear
part cloud
cloud
part cloud
cloud
part cloud
clear
part cloud
cloud
cloud
part cloud
cloud
light rain
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:05
5:09
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
9:37
9:36
9:32
 mm
3
Temp °C
15
16
16
17
18
15
15
14
15
16
16
16
16
16
16
16
16
17
19
21
18
Feels °C
7
8
7
8
11
7
8
9
10
10
10
11
11
11
11
12
13
15
19
19
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
How to use the Wavefinder 

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