Asa surfForecast / Kattegat and Skagerrack / Sweden

information circle12 Day Weather and Surf, issued 6 pm Wednesday 10 Dec 2025 CET
Forecast update in hr  min  s Forecast update imminent
Asa surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Asa sea temperature is
7.1° C
(Which is 2.4°C warmer than normal for this time of year)


Best Forecast Surf Conditions for Asa this week:

The most powerful waves expected at Asa in the next 12 days are 2.3m 7s and forecast to arrive on Sunday (Dec 14) at 7AM. Winds are predicted to be cross-onshore at the time the swell arrives.

Wave TypeTime (CET) & Date Wave Height & Period
Next good surf (1 star+)--
Best Surf--
Most Powerful 7AM (Sun 14th Dec)7.5ft (2.3m) 7s

Table - best surf conditions forecast for Asa over the next 12 days.

Updates in  hr  min  s Forecast update imminent

Short Range Forecast Light rain (total 5mm), mostly falling on Sat morning. Mild temperatures (max 9°C on Wed night, min 5°C on Fri night). Winds decreasing (fresh winds from the WSW on Wed night, light winds from the WSW by Thu night).

Days 3-6 Weather Summary Moderate rain (total 12mm), heaviest on Sat night. Mild temperatures (max 9°C on Mon afternoon, min 6°C on Sat afternoon). Winds decreasing (strong winds from the S on Sat night, light winds from the SSW by Mon afternoon).

Wed
10
Thursday
11
Friday
12
Saturday
13
Sunday
14
Monday
15
Tuesday
16
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 (?)
1.1
SW
1.4
SW
1.4
WSW
1.5
W
1.4
W
0.4
NW
0.3
SSW
0.5
S
0.6
SSW
0.6
SW
1.1
SSW
1.6
SW
1.1
SW
1.3
SSW
0.9
SSW
0.9
SSW
1.6
SSW
1.1
SSW
0.6
SSW
0.4
SSW
1.2
S
Period(s) (?)565565334446655566545
Wave
Graph
(?)Metric surfscale
Energy kJ (?)57120110126117725151246190679141371717720767
Wind
(km/h)
25
SSW
30
WSW
30
WSW
30
W
20
WSW
15
SSW
20
SSE
25
SSE
15
W
20
WSW
30
S
35
W
30
WSW
30
SSW
20
SW
10
SSW
10
S
10
S
15
S
25
S
20
W
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
ononcross-
on
cross-
on
cross-
on
cross-
on
cross-
on
crosscross-
on
oncross-
on
cross-
on
oncross-
on
ononcross-
on
cross-
on
cross-
on
cross-
on
cross-
on
High Tide
/ height (m)
12:23AM
0.11
12:39PM
0.13
1:22AM
0.10
1:38PM
0.13
2:15AM
0.09
2:32PM
0.13
3:02AM
0.09
3:22PM
0.13
3:43AM
0.08
4:08PM
0.13
4:20AM
0.09
4:51PM
0.13
4:53AM
0.10
Low Tide
/ height (m)
6:15PM
0.01
6:25AM
0.03
7:22PM
0.01
7:18AM
0.02
8:19PM
0.00
8:04AM
0.01
9:10PM
-0.00
8:47AM
0.00
9:54PM
0.00
9:26AM
0.00
10:34PM
0.01
10:04AM
0.01
11:10PM
0.03
10:42AM
0.02
Wed
10
Thursday
11
Friday
12
Saturday
13
Sunday
14
Monday
15
Tuesday
16
Sunrise--8:41--8:41--8:42--8:44--8:45--8:45--8:47
Sunset3:27--3:26--3:26--3:26--3:26--3:26--3:26--
part cloud
rain showers
cloud
part cloud
part cloud
part cloud
cloud
cloud
light rain
clear
rain showers
rain showers
part cloud
light rain
light rain
cloud
cloud
cloud
cloud
part cloud
light rain
Rain (mm)
-1------4-51-51-----5
Temp. °C898887657778888987666
Feels °C (?)3221143032-1101265421-1
  • 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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The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Asa surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.


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Information about the Asa Surf forecast

The above surf forecast table for Asa provides essential information for determining whether the surfing conditions will be good over the next 12 days. A general guide to surfing at Asa can be found by selecting the local surf guide option on the grey menu. Our Asa 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 (Asa) 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 Asa 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.

Asa is 17 km (11 miles) from Kungsbacka. If you plan a holiday in Kattegat and Skagerrack, look for hotels and other accommodation in Kungsbacka. Kungsbacka has rooms for a wide range of budgets as well as car hire and transport links.

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