Asa surfForecast / Kattegat and Skagerrack / Sweden

information circle12 Day Weather and Surf, issued 12 pm Friday 12 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
7.2° C
(Which is 2.7°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 1.6m 6s and forecast to arrive on Thursday (Dec 18) at 7PM. Winds are predicted to be onshore at the time the swell arrives.

Wave TypeTime (CET) & Date Wave Height & Period
Next good surf (1 star+)--
Best Surf--
Most Powerful 7PM (Thu 18th Dec)5ft (1.6m) 6s

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 4mm), mostly falling on Sat morning. Mild temperatures (max 8°C on Sun afternoon, min 5°C on Fri night). Winds increasing (light winds from the SSW on Fri afternoon, fresh winds from the SW by Sat night).

Days 3-6 Weather Summary Light rain (total 6mm), mostly falling on Tue night. Mild temperatures (max 7°C on Mon night, min 5°C on Mon morning). Wind will be generally light.

Friday
12
Saturday
13
Sunday
14
Monday
15
Tuesday
16
Wednesday
17
Thursday
18
AMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNight
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 (?)
0.4
WNW
0.2
WNW
0.4
SW
0.6
SSW
0.9
W
0.9
WSW
1.3
SSW
1.4
SSW
1.4
SSW
1.3
SSW
1.1
SSW
0.9
SSW
0.8
SSW
0.6
SSW
0.6
SSW
0.4
SW
0.2
WNW
0.4
SW
1.3
SSW
1.6
SSW
1
SSW
Period(s) (?)553445566655444443565
Wave
Graph
(?)Metric surfscale
Energy kJ (?)11221430359011913610057322413115228017161
Wind
(km/h)
10
SW
15
S
20
S
15
WSW
25
W
25
SW
30
SW
30
SW
30
SW
30
SSW
25
S
25
SSW
20
S
20
S
20
S
20
WSW
15
WSW
20
SSW
30
SSW
10
SSW
20
SSE
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
oncross-
on
cross-
on
cross-
on
cross-
on
ononononcross-
on
cross-
on
cross-
on
cross-
on
cross-
on
cross-
on
cross-
on
cross-
on
onononcross-
on
High Tide
/ height (m)
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
5:34PM
0.14
5:27AM
0.10
6:16PM
0.14
Low Tide
/ height (m)
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
11:47PM
0.04
11:21AM
0.02
12:24AM
0.06
Friday
12
Saturday
13
Sunday
14
Monday
15
Tuesday
16
Wednesday
17
Thursday
18
Sunrise8:41--8:42--8:44--8:45--8:45--8:47--8:48--
Sunset-3:26--3:26--3:26--3:26--3:26--3:26--3:26-
part cloud
part cloud
cloud
rain showers
clear
part cloud
light rain
cloud
part cloud
part cloud
part cloud
part cloud
part cloud
cloud
light rain
rain showers
part cloud
cloud
light rain
part cloud
cloud
Rain (mm)
---3--1-------51--2--
Temp. °C676677788567767777666
Feels °C (?)23122-1-111-201103332-202
  • 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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