Valnäs - Nord Koster Surf Break

Lat Long: 58.91° N 10.99° E

Valnäs - Nord Koster 48 hour detailed Surf Forecast

Issued: 7 am 03 Sep 2026 (local time)

Forecast update in  hr  min

Today's Valnäs - Nord Koster sea temperature is
17.4°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 (03 Sep):

  • Morning surf: Morning surf (03 Sep, local time) - 4.5ft (1.4m), 6s period with WSW swell.
  • Afternoon surf: Afternoon surf (03 Sep, local time) - 2.5ft (0.7m), 6s period with SW swell.
  • Evening surf: Evening surf (03 Sep, local time) - 0.5ft (0.1m), 6s period with SW swell.

The current surf forecast for Valnäs - Nord Koster at 2PM is: 0.8m 6s primary swell from a Southwest direction (forecast issued at 07:00am September 03). An open ocean swell of 0.6m 6s is not directed at the surf break. The wind direction is predicted to be cross-shore.

Time (CEST) & DateWave HeightWave Period
Morning (03 Sep)4.5ft (1.4m)6s
Afternoon (03 Sep)2.5ft (0.7m)6s
Evening (03 Sep)0.5ft (0.1m)6s

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


Short Range Forecast

Light rain (total 7mm), mostly falling on Fri morning. Very mild (max 18°C on Sat night, min 13°C on Thu morning). Wind will be generally light.

Thursday
3
Friday
4
Saturday
5
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
1
1
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)
1.4
SW
7
1.5
WSW
6
1.2
SW
6
0.8
SW
6
0.3
SW
6
0.1
SW
6
0.1
SW
6
0.3
SW
5
0.1
W
7
0.4
SW
7
0.7
SW
7
0.8
SW
7
0.7
SW
7
0.6
SW
7
0.8
SW
7
1
SW
7
1.1
SW
7
1.1
SW
7
1
SW
7
1
SW
8
0.8
SW
8
0.7
SW
8
0.7
SW
7
Wave Graph
Metric surfscale
Energy kJ
178
176
98
44
5
1
1
4
1
19
52
62
48
37
52
0
121
112
97
111
95
66
54
Wind (km/h)
30
W
25
WSW
15
WSW
20
SW
15
SW
5
WNW
5
W
10
WNW
0
SSE
10
E
10
ENE
10
N
5
WSW
10
E
10
ENE
15
N
10
NNE
0
NE
5
NNE
15
NW
20
NW
15
NW
15
WNW
Wind State
cross-on
cross-on
cross
cross
cross
glassy
cross-on
cross-on
glassy
cross-off
cross-off
cross-on
glassy
cross-off
cross-off
cross-on
cross-on
glassy
glassy
on
on
on
cross-on
High Tide
11:13AM0.21m
11:57PM0.27m
12:12PM0.24m
00:51AM0.29m
1:04PM0.26m
Low Tide
3:38AM0.10m
3:56PM0.06m
4:54AM0.11m
5:11PM0.06m
6:10AM0.10m
6:23PM0.05m
clear
clear
part cloud
clear
part cloud
cloud
part cloud
cloud
light rain
light rain
rain showers
cloud
cloud
cloud
rain showers
light rain
light rain
part cloud
part cloud
clear
part cloud
cloud
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:16
6:18
6:20
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
8:12
8:09
8:07
 mm
1
2
1
1
1
1
Temp °C
13
13
13
14
15
15
15
15
14
13
14
14
14
15
14
14
13
13
14
14
16
18
18
Feels °C
6
7
9
9
12
15
14
13
14
12
13
13
13
13
12
10
12
13
13
11
12
15
15
  • 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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