Valnäs - Nord Koster Surf Break

Lat Long: 58.91° N 10.99° E

Valnäs - Nord Koster 48 hour detailed Surf Forecast

Issued: 7 am 01 Sep 2026 (local time)

Forecast update in  hr  min

Today's Valnäs - Nord Koster sea temperature is
17.6°C
1.5° 

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 (01 Sep):

  • Morning surf: Morning surf (01 Sep, local time) - 0.5ft (0.1m), 6s period with SW swell.
  • Afternoon surf: Afternoon surf (01 Sep, local time) - 0.5ft (0.1m), 6s period with SW swell.

The current surf forecast for Valnäs - Nord Koster at 11AM is: 0.1m 4s primary swell from a Southwest direction and 0.1m 6s secondary swell from a Southwest direction (forecast issued at 07:00am September 01). The wind direction is predicted to be cross-offshore.

Time (CEST) & DateWave HeightWave Period
Morning (01 Sep)0.5ft (0.1m)6s
Afternoon (01 Sep)0.5ft (0.1m)6s
Evening (01 Sep)--

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


Short Range Forecast

Some drizzle, heaviest during Thu night. Very mild (max 17°C on Tue afternoon, min 13°C on Thu afternoon). Winds decreasing (strong winds from the WSW on Tue night, calm by Thu night).

Tuesday
1
Wednesday
2
Thursday
3
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
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
SW
4
0.1
SW
6
0.1
SW
6
0.1
SW
6
0.1
SW
6
0.5
SW
6
1.2
SW
7
2.1
SW
7
2
SW
7
1.6
SW
6
1.7
SW
6
1.8
SW
6
1.8
SW
6
1.7
SW
7
1.7
SW
6
1.6
SW
7
1.5
SW
7
1.7
WSW
7
1.4
SW
6
1
SW
6
0.8
SW
5
0.6
SW
5
0.7
SW
4
Wave Graph
Metric surfscale
Energy kJ
2
1
1
1
1
0
124
408
355
200
217
271
273
246
245
237
204
237
139
64
32
16
20
Wind (km/h)
10
SSE
10
SE
10
S
20
S
20
SSW
20
S
40
WSW
50
WSW
40
WSW
35
SW
45
WSW
45
WSW
45
SW
45
W
45
W
40
W
40
W
30
W
25
WSW
15
SW
20
SW
5
NW
5
NNE
Wind State
off
off
cross-off
cross-off
cross-off
cross-off
cross
cross
cross
cross
cross
cross
cross
cross-on
cross-on
cross-on
cross-on
cross-on
cross
cross
cross
glassy
glassy
High Tide
8:54AM0.19m
9:48PM0.23m
10:06AM0.19m
10:55PM0.25m
11:13AM0.21m
Low Tide
1:48PM0.04m
2:31AM0.08m
2:47PM0.05m
3:38AM0.10m
3:56PM0.06m
clear
clear
clear
part cloud
cloud
cloud
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
cloud
cloud
cloud
light rain
cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:11
6:13
6:16
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
8:17
8:15
8:12
 mm
1
Temp °C
16
15
16
17
17
17
17
15
16
16
15
17
17
16
14
14
14
14
14
14
13
13
13
Feels °C
15
14
15
14
14
14
9
5
9
10
6
8
8
7
4
5
5
7
9
10
8
12
12
  • 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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