Valnäs - Nord Koster Surf Break

Lat Long: 58.91° N 10.99° E

Valnäs - Nord Koster 48 hour detailed Surf Forecast

Issued: 7 pm 07 Aug 2026 (local time)

Forecast update in  hr  min

Today's Valnäs - Nord Koster sea temperature is
16.8° C
0.8° 

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 (07 Aug):

  • Afternoon surf: Afternoon surf (07 Aug, local time) - 2ft (0.6m), 6s period with SW swell.
  • Evening surf: Evening surf (07 Aug, local time) - 1ft (0.3m), 6s period with SW swell.

The current surf forecast for Valnäs - Nord Koster at 11PM is: 1.4m 7s primary swell from a Southwest direction and 1.2m 7s secondary swell from a Southwest direction (forecast issued at 07:00pm August 07). The wind direction is predicted to be cross-onshore.

Time (CEST) & DateWave HeightWave Period
Morning (07 Aug)--
Afternoon (07 Aug)2ft (0.6m)6s
Evening (07 Aug)1ft (0.3m)6s

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


Short Range Forecast

Light rain (total 2mm), mostly falling on Sun night. Very mild (max 19°C on Sun afternoon, min 15°C on Fri night). Winds increasing (moderate winds from the S on Fri night, strong winds from the SW by Sat night).

Fri
7
Saturday
8
Sunday
9
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
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
0.6
SW
6
0.3
SW
6
1.4
SW
7
2.1
WSW
7
1.4
SW
7
1.3
SW
6
1.4
SW
6
1.8
SW
6
2.2
SW
7
2.3
SW
7
2.1
SW
7
1.8
SW
6
1.5
SW
6
1.4
SW
5
1.3
SSW
6
1.2
SSW
5
1.3
SSW
5
1.5
SW
6
1.9
SW
6
Wave Graph
Metric surfscale
Energy kJ
23
5
209
415
178
141
141
236
427
498
382
236
0
0
0
0
0
0
275
Wind (km/h)
15
WSW
20
S
30
WSW
35
W
35
W
40
W
40
WSW
40
SW
45
SW
50
SW
45
WSW
40
SW
35
SW
35
SW
35
S
35
S
35
S
35
SW
45
SW
Wind State
cross
cross-off
cross-on
cross-on
cross-on
cross-on
cross-on
cross
cross
cross
cross
cross
cross
cross-off
cross-off
cross-off
cross-off
cross-off
cross
High Tide
1:54AM0.30m
2:07PM0.26m
2:41AM0.32m
2:53PM0.29m
Low Tide
6:25PM0.05m
7:20AM0.08m
7:28PM0.03m
8:14AM0.06m
8:25PM0.02m
part cloud
part cloud
clear
clear
part cloud
clear
part cloud
clear
clear
clear
clear
clear
clear
part cloud
part cloud
clear
cloud
cloud
light rain
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:16
5:20
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
9:25
9:22
9:21
 mm
1
Temp °C
16
16
17
16
15
15
16
17
17
16
16
16
16
16
16
17
19
17
15
Feels °C
12
12
11
9
7
8
9
10
9
7
8
9
10
10
10
11
13
11
7
  • 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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