Valnäs - Nord Koster Surf Break

Lat Long: 58.91° N 10.99° E

Valnäs - Nord Koster 48 hour detailed Surf Forecast

Issued: 7 am 02 Sep 2026 (local time)

Forecast update in  hr  min

Today's Valnäs - Nord Koster sea temperature is
17.6°C
1.6° 

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 Sep):

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

The current surf forecast for Valnäs - Nord Koster at 1PM is: 1.6m 6s primary swell from a Southwest direction (forecast issued at 07:00am September 02). The wind direction is predicted to be cross-shore.

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

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


Short Range Forecast

Moderate rain (total 11mm), heaviest on Thu night. Very mild (max 17°C on Wed afternoon, min 13°C on Wed night). Winds decreasing (strong winds from the W on Wed morning, calm by Fri afternoon).

Wednesday
2
Thursday
3
Friday
4
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
1
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)
1.7
SW
7
1.6
SW
6
1.6
SW
6
1.6
SW
6
1.7
SW
6
1.6
SW
7
1.6
SW
7
1.5
SW
6
1.8
WSW
7
1.6
SW
7
0.9
SW
6
0.7
SW
6
0.5
SW
5
0.3
SW
6
0.1
SW
6
0.1
SW
5
0.1
SW
7
0.4
SW
7
0.7
SW
7
0.8
SW
7
0.8
SW
7
1
SW
6
1.6
SW
7
Wave Graph
Metric surfscale
Energy kJ
246
171
178
177
219
226
208
183
297
214
66
0
0
5
1
1
2
0
54
71
59
66
244
Wind (km/h)
35
SW
45
WSW
50
W
40
WSW
45
SW
40
W
40
W
35
W
30
W
20
WSW
15
SW
15
SW
20
SW
10
SW
10
S
5
W
5
NNE
10
NNW
15
NNE
0
W
5
SW
5
NW
5
NE
Wind State
cross
cross
cross-on
cross
cross
cross-on
cross-on
cross-on
cross-on
cross-on
cross
cross
cross
cross
cross-off
cross-on
cross
cross-on
cross-on
glassy
glassy
on
cross
High Tide
10:06AM0.19m
10:55PM0.25m
11:13AM0.21m
11:57PM0.27m
12:12PM0.24m
Low Tide
2:31AM0.08m
2:47PM0.05m
3:38AM0.10m
3:56PM0.06m
4:54AM0.11m
5:11PM0.06m
part cloud
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
cloud
part cloud
cloud
light rain
light rain
light rain
light rain
cloud
part cloud
cloud
cloud
cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:13
6:16
6:18
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
8:15
8:12
8:09
 mm
2
5
3
1
Temp °C
16
15
15
16
17
17
14
13
14
13
14
14
15
15
14
15
14
14
13
13
14
15
15
Feels °C
10
6
5
8
8
8
5
5
7
8
10
10
11
13
13
15
13
13
10
12
13
13
14
  • 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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