Valnäs - Nord Koster Surf Break

Lat Long: 58.91° N 10.99° E

Valnäs - Nord Koster 48 hour detailed Surf Forecast

Issued: 1 am 20 Jul 2026 (local time)

Forecast update in  hr  min

Today's Valnäs - Nord Koster sea temperature is
20.9° C
3.9° 

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 (20 Jul):

  • Morning surf: Morning surf (20 Jul, local time) - 0.5ft (0.1m), 6s period with W swell.
  • Afternoon surf: Afternoon surf (20 Jul, local time) - 0.5ft (0.1m), 5s period with W swell.

The current surf forecast for Valnäs - Nord Koster at 10AM is: 0.1m 6s primary swell from a West direction and 0.3m 2s secondary swell from a North direction (forecast issued at 01:00am July 20). The wind direction is predicted to be cross-onshore.

Time (CEST) & DateWave HeightWave Period
Morning (20 Jul)0.5ft (0.1m)6s
Afternoon (20 Jul)0.5ft (0.1m)5s
Evening (20 Jul)--

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


Short Range Forecast

Some drizzle, heaviest during Tue night. Warm (max 21°C on Mon afternoon, min 13°C on Wed night). Winds increasing (calm on Tue morning, strong winds from the NE by Wed morning).

Monday
20
Tuesday
21
Wednesday
22
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
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
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
6
0.3
N
2
0.1
W
5
0.3
W
3
0.4
SW
4
0.4
SW
4
0.3
SW
4
0.3
SW
4
0.3
SW
4
0.5
SW
3
0.9
SW
4
0.7
WSW
5
0.3
WSW
9
0.4
NNE
3
0.7
N
4
0.7
N
4
0.5
NNE
3
0.1
W
9
0.3
NE
3
0.1
SW
5
Wave Graph
Metric surfscale
Energy kJ
0
0
1
1
1
0
0
1
3
4
3
3
3
0
0
23
15
3
12
13
6
1
1
1
Wind (km/h)
15
NE
20
NE
20
NNE
20
N
20
NW
20
NW
30
WNW
25
WNW
5
N
5
E
5
SE
10
SSW
20
SSW
25
SSW
30
S
35
S
20
SE
20
NE
35
NNE
40
NE
35
ENE
25
ENE
15
ENE
20
WNW
Wind State
cross
cross
cross
cross-on
on
on
cross-on
on
cross-on
glassy
glassy
cross-off
cross-off
cross-off
cross-off
cross-off
off
cross
cross
cross
cross-off
cross-off
cross-off
on
High Tide
11:05AM0.23m
11:35PM0.27m
12:05PM0.22m
00:33AM0.28m
1:01PM0.23m
Low Tide
4:10AM0.04m
4:17PM0.04m
5:33AM0.05m
5:27PM0.05m
6:55AM0.06m
6:38PM0.06m
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
clear
clear
part cloud
cloud
cloud
cloud
rain showers
part cloud
part cloud
clear
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
4:37
4:39
4:41
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
10:05
10:04
10:01
 mm
1
Temp °C
14
13
14
17
20
21
19
20
18
17
16
17
18
18
18
17
17
15
15
16
17
17
18
18
Feels °C
10
8
9
12
14
15
13
14
16
16
15
15
15
14
13
12
15
12
9
8
10
12
14
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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