Valnäs - Nord Koster Surf Break

Lat Long: 58.91° N 10.99° E

Valnäs - Nord Koster 48 hour detailed Surf Forecast

Issued: 1 pm 10 Jul 2026 (local time)

Forecast update in  hr  min

Today's Valnäs - Nord Koster sea temperature is
17.4° 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 (10 Jul):

  • Morning surf: Morning surf (10 Jul, local time) - 0.5ft (0.1m), 4s period with SW swell.
  • Afternoon surf: Afternoon surf (10 Jul, local time) - 0.5ft (0.1m), 7s period with W swell.
  • Evening surf: Evening surf (10 Jul, local time) - 0.5ft (0.1m), 4s period with SW swell.

The current surf forecast for Valnäs - Nord Koster at 5PM is: 0.2m 5s primary swell from a West-southwest direction and 0.1m 5s secondary swell from a Southwest direction (forecast issued at 01:00pm July 10). The wind direction is predicted to be cross-onshore.

Time (CEST) & DateWave HeightWave Period
Morning (10 Jul)0.5ft (0.1m)4s
Afternoon (10 Jul)0.5ft (0.1m)7s
Evening (10 Jul)0.5ft (0.1m)4s

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


Short Range Forecast

Mostly dry. Warm (max 25°C on Sun night, min 16°C on Sat night). Winds increasing (calm on Fri night, fresh winds from the NNE by Sat night).

Fri
10
Saturday
11
Sunday
12
Mon
13
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
2 AM
5 AM
8 AM
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
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)
0.1
W
7
0.1
W
7
0.2
WSW
5
0.1
SW
4
0.1
SW
4
0.1
SW
4
0.1
SW
4
0.2
SSW
2
0.2
SSW
3
0.4
NNE
3
0.7
N
4
0.7
N
4
0.5
N
4
0.3
N
3
0.3
NNW
3
0.3
NNW
2
Wave Graph
Metric surfscale
Energy kJ
1
1
2
1
1
1
0
1
0
0
0
0
0
3
12
14
6
1
1
1
0
0
0
0
Wind (km/h)
10
WNW
15
W
20
W
10
SW
5
SSE
10
SSE
5
S
5
SSW
10
SSW
15
SW
15
SSW
5
SSW
20
NNE
30
NNE
30
NNE
30
NE
15
NE
15
N
15
NW
5
N
5
NE
10
NNE
15
NNE
15
NNE
Wind State
cross-on
cross-on
cross-on
cross
glassy
cross-off
cross-off
cross-off
cross-off
cross
cross-off
glassy
cross
cross-on
cross-on
cross
cross
cross-on
on
cross-on
glassy
cross-on
cross
cross-on
High Tide
2:18PM0.23m
2:50AM0.30m
3:04PM0.26m
3:37AM0.32m
3:52PM0.29m
4:26AM0.33m
Low Tide
7:34PM0.03m
8:22AM0.05m
8:31PM0.02m
9:13AM0.04m
9:26PM0.01m
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
clear
clear
part cloud
cloud
cloud
cloud
cloud
part cloud
clear
clear
part cloud
clear
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
4:20
4:22
4:24
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
10:21
10:20
10:17
10:16
 mm
Temp °C
20
23
23
21
22
22
20
19
21
22
22
20
20
17
16
16
20
23
24
25
24
23
20
19
Feels °C
18
20
19
19
21
20
19
18
19
19
20
20
18
13
11
12
18
20
21
23
23
21
18
16
  • 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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