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Surf Forecasts:

Asa surfForecast / Kattegat and Skagerrack / Sweden

information circle12 Day Weather and Surf, issued 1 am Sunday 14 Sep 2025 CEST
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
18.0° C
 (Which is 3.2°C warmer than normal for this time of year)

Best Forecast Surf Conditions for Asa this week:

The surf forecast for Asa over the next 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Friday (Sep 19) at 8PM. The primary swell is predicted to be 2.4m and 6s period. The wind is predicted to be cross-offshore as the swell arrives.

The most powerful waves expected at Asa in the next 12 days are 2.5m 7s and forecast to arrive on Saturday (Sep 20) at 5AM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.6m 6s period and expected on Monday (Sep 15) at 2PM.

Wave TypeTime (CEST) & Date Wave Height & Period
Next good surf (1 star+) 8PM (Fri 19th Sep)8ft (2.4m) 6s
Best Surf 8PM (Fri 19th Sep)8ft (2.4m) 6s
Most Powerful 5AM (Sat 20th Sep)8ft (2.5m) 7s

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

Updates in  hr  min  s Forecast update imminent 
12 DaysHourly
Print Table

Short Range Forecast Heavy rain (total 39mm), heaviest during Sun afternoon. Very mild (max 17°C on Mon afternoon, min 13°C on Sun morning). Winds increasing (light winds from the SSW on Sun night, strong winds from the WNW by Tue night).

Days 3-6 Weather Summary Heavy rain (total 21mm), heaviest during Fri afternoon. Very mild (max 16°C on Wed afternoon, min 12°C on Fri night). Winds decreasing (strong winds from the W on Fri afternoon, light winds from the W by Fri night).

Sunday
14
Monday
15
Tuesday
16
Wednesday
17
Thursday
18
Friday
19
Saturday
20
AMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNight
Rating
(10 max)
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
2
1
0
0
Swell
Height Map
See all maps
Wave Height (m) & direction (?)
0.7
S
0.6
S
0.3
SSW
1.2
S
1.6
S
2.4
SSW
2.1
SSW
2.4
SW
2.4
W
1.8
W
1.6
W
1
WNW
1.6
SW
1.1
SW
1.8
SW
1.9
WSW
2
WSW
2.5
WNW
2.2
WNW
1.8
WNW
1
W
Period(s) (?)553567777666656667765
Wave
Graph
(?)Metric surfscale
Energy kJ (?)2002600512407531515236163731506224721928271745726146
Wind
(km/h)
20
SE
15
SSE
10
W
35
S
40
SSW
40
SSW
35
SSW
30
WSW
45
W
35
WSW
30
W
20
SSW
40
WSW
40
WSW
45
WSW
45
WSW
50
W
10
NNW
10
W
15
W
10
SW
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
crosscrosscross-
on		cross-
on		cross-
on		oncross-
on		oncross-
on		cross-
on		cross-
on		ononcross-
on		cross-
on		oncross-
on		cross-
off		cross-
on		cross-
on		on
High Tide
/ height (m)
1:41PM
0.10
2:57AM
0.14
2:44PM
0.12
3:49AM
0.15
3:38PM
0.13
4:35AM
0.15
4:26PM
0.14
5:16AM
0.15
5:11PM
0.14
5:55AM
0.14
5:52PM
0.14
6:31AM
0.13
6:34PM
0.13
Low Tide
/ height (m)
8:22AM
0.04
8:07PM
0.01
9:14AM
0.04
9:07PM
0.01
9:59AM
0.04
9:59PM
0.00
10:39AM
0.04
10:46PM
0.00
11:14AM
0.03
11:30PM
0.00
11:48AM
0.03
12:11AM
-0.00
12:20PM
0.02
12:52AM
0.00
Sunday
14
Monday
15
Tuesday
16
Wednesday
17
Thursday
18
Friday
19
Saturday
20
Sunrise6:37--6:39--6:41--6:43--6:46--6:48--6:50--
Sunset-7:35--7:31--7:29--7:25--7:22--7:21--7:17-
light rain
light rain
rain showers
light rain
thunderstorm
thunderstorm
light rain
thunderstorm
thunderstorm
rain showers
rain showers
rain showers
rain showers
rain showers
rain showers
rain showers
rain showers
clear
clear
part cloud
light rain
Rain (mm)
15435843612432333---1
Temp. °C151414141715151615151616161615151514131313
Feels °C (?)131112811881199111299876111099
  • 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

Eyeball surf reportRecent Eyeball Surf Reports for Kattegat and Skagerrack

  1. weather stationWind Update The wind is still cross-off at Asa (light winds from the E at TTVK Surfing 11 km from Asa). No surfable waves

    1 hour 16 minutes ago Asa
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1 h 16 min ago

17 km/h
E
Cross-Off
Please reload the page to see if there are any updates.

FREE! Surf-Forecast.com widget for your website

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.

View detailed surf forecast for Asa at:
surf-forecast.com

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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