Valnäs - Nord Koster Surf Break

Lat Long: 58.91° N 10.99° E

Valnäs - Nord Koster 48 hour detailed Surf Forecast

Issued: 7 pm 31 Aug 2026 (local time)

Forecast update in  hr  min

Today's Valnäs - Nord Koster sea temperature is
17.7°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):

  • Evening surf: Evening surf (01 Sep, local time) - 2ft (0.6m), 5s period with SW swell.

The current surf forecast for Valnäs - Nord Koster at 12AM is: 0.4m 4s primary swell from a Southwest direction and 0.1m 6s secondary swell from a Southwest direction (forecast issued at 07:00pm August 31). An open ocean swell of 0.2m 4s is not directed at the surf break. The wind direction is predicted to be cross-offshore.

Time (CEST) & DateWave HeightWave Period
Morning (01 Sep)--
Afternoon (01 Sep)--
Evening (01 Sep)2ft (0.6m)5s

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


Short Range Forecast

Mostly dry. Very mild (max 17°C on Tue afternoon, min 13°C on Wed night). Winds increasing (light winds from the S on Mon night, near gales from the WSW by Tue night).

Mon
31
Tuesday
1
Wednesday
2
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)
0.8
SSW
5
0.7
SW
5
0.1
SW
6
0.1
SW
6
0.3
SW
4
0.1
SW
6
0.1
SW
6
0.1
SW
6
0.1
SW
6
0.5
SW
6
1.3
SW
7
2.1
SW
7
2
SW
7
1.7
SW
6
1.8
SW
6
1.7
SW
7
1.8
SW
6
1.6
SW
7
1.6
SW
6
Wave Graph
Metric surfscale
Energy kJ
0
0
2
2
2
1
1
1
1
0
151
410
345
224
251
246
259
240
202
Wind (km/h)
25
SSW
15
SSW
10
SSW
5
S
10
SSE
10
SE
10
S
20
S
20
SSW
20
S
45
WSW
55
WSW
45
WSW
40
WSW
45
WSW
45
WSW
45
SW
40
W
40
W
Wind State
cross-off
cross-off
cross-off
cross-off
off
off
cross-off
cross-off
cross-off
cross-off
cross-on
cross
cross
cross
cross
cross
cross
cross-on
cross-on
High Tide
8:37PM0.23m
8:54AM0.19m
9:48PM0.23m
10:06AM0.19m
10:55PM0.25m
Low Tide
1:35AM0.06m
1:48PM0.04m
2:31AM0.08m
2:47PM0.05m
part cloud
part cloud
part cloud
clear
clear
clear
clear
cloud
cloud
cloud
clear
clear
part cloud
clear
clear
clear
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:11
6:13
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
8:21
8:17
8:15
 mm
Temp °C
16
16
16
16
16
15
16
17
16
17
17
15
15
16
15
16
17
16
14
Feels °C
12
14
15
16
15
14
15
14
13
14
9
5
7
9
5
7
8
8
5
  • 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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