Valnäs - Nord Koster Surf Break

Lat Long: 58.91° N 10.99° E

Valnäs - Nord Koster 48 hour detailed Surf Forecast

Issued: 1 pm 17 Sep 2026 (local time)

Forecast update in  hr  min

Today's Valnäs - Nord Koster sea temperature is
15.7°C
1.3° 

Valnäs - Nord Koster surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.


Time (CEST) & DateWave HeightWave Period
Morning (17 Sep)4.5ft (1.4m)7s
Afternoon (17 Sep)--
Evening (17 Sep)--

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


Short Range Forecast

Moderate rain (total 10mm), heaviest on Thu night. Very mild (max 16°C on Sat afternoon, min 13°C on Sun morning). Winds increasing (fresh winds from the SW on Thu afternoon, near gales from the SW by Sat afternoon).

Thu
17
Friday
18
Saturday
19
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
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
0.9
SW
7
1.3
SW
6
1.2
SW
6
1.1
SSW
5
1.4
SSW
6
1.7
SW
6
1.8
SW
6
1.7
SW
6
1.9
SW
7
1.9
SW
7
2.2
SW
7
2.2
SW
7
2.3
SW
7
2.1
SW
7
1.8
SW
7
1.6
SW
6
1.9
SW
6
2.1
SW
7
3
SW
7
3
SW
8
2.5
SW
8
Wave Graph
Metric surfscale
Energy kJ
73
122
0
0
0
0
273
240
321
331
462
503
494
393
298
196
0
0
868
1006
731
Wind (km/h)
30
WSW
35
SW
35
SW
35
SSW
40
SSW
40
SW
40
SW
40
WSW
45
WSW
45
WSW
50
WSW
45
WSW
45
WSW
40
WSW
40
WSW
35
SW
50
SSW
45
SW
55
SW
50
WSW
45
WSW
Wind State
cross
cross
cross
cross-off
cross-off
cross
cross
cross
cross
cross
cross
cross-on
cross-on
cross
cross
cross-off
cross-off
cross-off
cross
cross
cross
High Tide
11:09AM0.24m
11:50PM0.28m
12:05PM0.25m
00:43AM0.30m
12:54PM0.27m
Low Tide
4:24PM0.10m
6:36AM0.13m
5:59PM0.10m
7:28AM0.13m
7:02PM0.10m
clear
part cloud
light rain
light rain
light rain
rain showers
cloud
rain showers
cloud
part cloud
clear
clear
part cloud
part cloud
part cloud
cloud
light rain
rain showers
rain showers
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:50
6:52
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
7:31
7:29
7:25
 mm
1
2
2
1
1
1
1
1
Temp °C
13
14
14
14
14
14
14
14
14
15
15
15
14
14
14
14
14
16
16
15
14
Feels °C
7
7
8
8
7
7
7
6
5
6
5
6
5
6
6
7
6
8
6
5
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
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