Valnäs - Nord Koster surfForecast / Kattegat and Skagerrack / Sweden

information circle16 Day Weather and Surf, issued 7 am Thursday 23 Apr 2026 CEST
Forecast update in hr  min  s Forecast update imminent
Valnäs - Nord Koster surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Valnäs - Nord Koster sea temperature is
7.6° C
(Which is normal for this time of year)

Best Forecast Surf Conditions for Valnäs - Nord Koster this week:

The most powerful waves expected at Valnäs - Nord Koster in the next 16 days are 1.1m 5s and forecast to arrive on Sunday (Apr 26) at 11PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.5m 4s period and expected on Monday (Apr 27) at 8AM.

Wave TypeTime (CEST) & Date Wave Height & Period
Next good surf (1 star+)--
Best Surf--
Most Powerful11PM (Sun 26th Apr)3.5ft (1.1m) 5s

Table - best surf conditions forecast for Valnäs - Nord Koster over the next 16 days.


Updates in  hr  min  s Forecast update imminent

Short Range Forecast

Mostly dry. Very mild (max 11°C on Fri morning, min 5°C on Sat night). Winds increasing (calm on Thu morning, strong winds from the N by Sat night).

Days 4-6 Weather Summary

Mostly dry. Very mild (max 14°C on Tue night, min 5°C on Sun morning). Winds decreasing (fresh winds from the N on Sun morning, calm by Sun night).

Thursday
23
Friday
24
Saturday
25
Sunday
26
Monday
27
Tuesday
28
Wednesday
29
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
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
<span class="translation_missing" title="translation missing: en.components.forecast-table.maps.snow_map">Snow Map</span>
<span class="translation_missing" title="translation missing: en.components.forecast-table.maps.snow_map">Snow Map</span>
<span class="translation_missing" title="translation missing: en.components.forecast-table.maps.snow_map">Snow Map</span>
<span class="translation_missing" title="translation missing: en.components.forecast-table.maps.snow_map">Snow Map</span>
<span class="translation_missing" title="translation missing: en.components.forecast-table.maps.snow_map">Snow Map</span>
<span class="translation_missing" title="translation missing: en.components.forecast-table.maps.snow_map">Snow Map</span>
<span class="translation_missing" title="translation missing: en.components.forecast-table.maps.snow_map">Snow Map</span>
Wave
Height (m)
Direction
Period (s)
0.3
SW
5
0.1
SW
5
0.1
W
9
0.1
SW
6
0.1
SW
5
0.4
SW
3
0.7
SW
6
0.6
SW
7
0.8
N
4
0.7
N
4
0.2
N
3
0.8
SW
5
0.5
SW
4
0.3
SW
4
0.1
SW
4
0.1
SW
4
0.3
NNE
2
0.3
NNE
3
Wave Graph
Metric surfscale
Energy kJ
3
1
2
1
1
3
40
36
18
14
0
31
0
2
1
1
0
1
2
0
0
Wind (km/h)
5
NNE
10
W
5
SW
10
ENE
10
W
25
WNW
30
NNW
30
N
40
N
35
N
20
W
15
WSW
15
ESE
10
SW
20
S
15
ENE
25
NW
25
ENE
25
NNE
20
NW
5
E
glassy
cross-on
glassy
cross-off
cross-on
cross-on
on
cross-on
cross-on
cross-on
cross-on
cross-on
off
cross
cross-off
cross-off
on
cross-off
cross-on
on
cross-off
High Tide
11:39AM0.31m
11:58PM0.30m
12:35PM0.31m
00:52AM0.31m
1:26PM0.31m
1:42AM0.31m
2:14PM0.30m
2:28AM0.31m
2:58PM0.28m
3:12AM0.30m
3:40PM0.27m
3:54AM0.29m
4:20PM0.25m
4:35AM0.29m
Low Tide
5:03PM0.08m
5:36AM0.04m
6:13PM0.06m
6:44AM0.02m
7:09PM0.04m
7:40AM0.01m
7:55PM0.02m
8:27AM-0.00m
8:36PM0.01m
9:09AM-0.01m
9:14PM0.01m
9:47AM-0.00m
9:50PM0.01m
clear
clear
clear
clear
clear
part cloud
part cloud
cloud
clear
clear
clear
clear
part cloud
part cloud
cloud
cloud
part cloud
clear
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:41
5:39
5:35
5:33
5:31
5:28
5:26
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
8:47
8:50
8:52
8:54
8:57
8:59
9:01
Temp °C
8
9
10
11
11
11
9
9
7
7
7
7
6
7
7
8
13
14
8
12
13
5
5
8
9
8
4
1
0
-4
0
0
-1
3
3
2
3
7
9
1
6
7
Swell 1
Height (m)
Direction
Period (s)
0.3
SW
5
0.1
SW
5
0.3
SW
3
0.1
SW
5
0.4
SW
3
0.7
SW
6
0.6
SW
7
0.1
SW
5
0.1
SW
6
0.2
N
3
0.5
SW
4
0.2
SSW
3
0.1
SW
4
0.1
SW
4
0.1
SW
5
Energy kJ
3
1
1
1
3
40
36
1
1
1
8
1
1
1
1
Swell 2
Height (m)
Direction
Period (s)
0.1
W
9
0.1
SW
6
0.1
W
9
0.1
W
5
Energy kJ
2
1
2
1
Swell 3
Height (m)
Direction
Period (s)
0.1
W
8
Energy kJ
1
Wind waves
Height (m)
Direction
Period (s)
0.3
WSW
3
0.4
NW
3
0.4
N
3
0.8
N
4
0.7
N
4
0.8
SW
5
0.3
SW
4
0.3
NNE
2
0.3
NNE
3
Energy kJ
2
2
3
18
14
31
2
1
2
Nearest Offshore or Glassy
Rating
(10 max)
1
1
1
1
1
1
1
1
2
1
2
2
1
1
1
1
1
1
3
1
1
Distance (km)
254
1180
860
886
904
845
824
827
265
250
769
479
494
765
845
494
824
313
800
494
312
Best forecast wave conditions in Kattegat and Skagerrack
Rating
(10 max)
Best forecast wave conditions in Sweden
Rating
(10 max)
Header Global
Rating
(10 max)
5
5
5
5
4
4
4
4
5
8
6
8
4
5
5
6
5
9
5
6
5
  • Map Icons:
  • Break
  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
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Information about the Valnäs - Nord Koster Surf forecast

The above surf forecast table for Valnäs - Nord Koster provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Valnäs - Nord Koster can be found by selecting the local surf guide option on the grey menu. Our Valnäs - Nord Koster surf forecast is unique since it includes wave energy (power) that defines the real feel of the surf rather than just the height or the period. If you surf the same spot (Valnäs - Nord Koster) regularly then make a mental note of the wave energy from the surf forecast table each time you go. Very soon you may start to choose your surf days based on the wave energy alone combined with our forecast of favourable offshore wind conditions. Our star ratings will help here and of course you will also find the usual wave height and period predictions on our surf forecasts as well as a full break down of the swell components under our advanced users option (to reveal that, click the little Einstein character under the tide times).

Further information to help with frequently asked questions about our surf forecast for Valnäs - Nord Koster may be found under the help tab on the top menu and also by moving your mouse over the question marks on the surf forecast table itself. Please always bear in mind that the forecast is for near-shore open water and local factors at each surf break influence the actual breaking wave height, such as the beach / reef profile, water depths offshore and shelter.

Valnäs - Nord Koster is 32 km (20 miles) from Fredrikstad. If you plan a holiday in Kattegat and Skagerrack, look for hotels and other accommodation in Fredrikstad. Fredrikstad has rooms for a wide range of budgets as well as car hire and transport links.

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