Valnäs - Nord Koster surfForecast / Kattegat and Skagerrack / Sweden

information circle16 Day Weather and Surf, issued 6 pm Saturday 28 Mar 2026 CET
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
3.9° 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 2.1m 6s and forecast to arrive on Sunday (Mar 29) at 8PM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 2.2m 7s period and expected on Sunday (Mar 29) at 11PM.

Wave TypeTime (CET) & Date Wave Height & Period
Next good surf (1 star+)--
Best Surf--
Most Powerful 8PM (Sun 29th Mar)7ft (2.1m) 6s

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 Light rain (total 3mm), mostly falling on Sun night. Mild temperatures (max 7°C on Tue morning, min 3°C on Sat night). Winds decreasing (strong winds from the S on Sun night, light winds from the WSW by Mon morning).

Days 3-6 Weather Summary Light rain (total 2mm) at first, then becoming colder with a dusting of snow on Thu morning. Mild temperatures (max 9°C on Tue afternoon, min 1°C on Thu morning). Winds increasing (light winds from the WSW on Tue night, strong winds from the NNE by Thu morning).

Sat
28
Sunday
29
Monday
30
Tuesday
31
Wednesday
01
Thursday
02
Friday
03
PMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAM
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
Wave Height (m) & direction (?)
1.3
SW
1.1
SW
0.2
WSW
2.1
SW
2.2
SSW
0.8
SW
1.2
SW
1.5
WSW
0.4
SW
0.3
SW
0.3
SW
1.1
SSW
1.9
SW
1.5
SSW
1.2
NNE
0.8
NNE
1
NNE
0.6
N
0.4
N
0.2
N
0.1
W
Period(s) (?)568678866665665444438
Wave
Graph
(?)Metric surfscale
Energy kJ (?)0847352090164181156600063163610001
Wind
(km/h)
30
SW
25
SW
30
SSW
40
SSW
40
S
5
WSW
10
WSW
20
W
15
NW
10
W
15
S
35
SW
40
SW
35
SSW
50
NE
20
NE
15
ENE
10
S
15
ESE
20
SE
10
WNW
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
crosscross-
off
cross-
off
cross-
off
cross-
off
cross-
on
crosscross-
on
oncross-
on
cross-
off
crosscrosscross-
off
crosscrosscross-
off
cross-
off
offoffon
High Tide
/ height (m)
1:50AM
0.32
2:20PM
0.32
2:33AM
0.32
3:01PM
0.30
3:15AM
0.31
3:41PM
0.28
3:56AM
0.30
4:21PM
0.26
4:39AM
0.28
5:02PM
0.24
5:26AM
0.27
5:49PM
0.23
6:22AM
0.26
Low Tide
/ height (m)
7:20PM
0.03
7:40AM
-0.00
8:00PM
0.02
8:23AM
-0.01
8:38PM
0.00
9:04AM
-0.02
9:15PM
-0.00
9:43AM
-0.01
9:52PM
0.00
10:22AM
0.01
10:30PM
0.02
11:02AM
0.03
11:10PM
0.04
11:44AM
0.07
Sat
28
Sunday
29
Monday
30
Tuesday
31
Wednesday
01
Thursday
02
Friday
03
Sunrise--5:52--5:50--5:47--5:43--5:41--5:37--5:35
Sunset6:46--6:49--6:52--6:53--6:55--6:59--7:00--
clear
clear
clear
cloud
light rain
part cloud
clear
clear
clear
clear
clear
cloud
clear
part cloud
light snow
clear
part cloud
cloud
cloud
light snow
part cloud
Rain (mm)
----3---------2------
Temp. °C554543667988762434334
Feels °C (?)-2-2-4-4-3-1212440-2-2-9-4-3-1-1-31
  • 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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