Surf Forecasts:
Asa surf forecast from 13 Nov 2026:
- Best quality surf: Wednesday 18 Nov, 7PM (local time) - 4.5ft (1.3m), 6s period, S swell with glassy winds.
- Most powerful swell: Monday 16 Nov, 4AM (local time) - 8ft (2.4m), 7s period, SSW swell with 512 kJ wave energy.
- Next surfable swell (1★+): Wednesday 18 Nov, 7PM (local time) - 4.5ft (1.3m), 6s period with S swell.
Best Forecast Surf Conditions for Asa this week:
The surf forecast for Asa over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Wednesday (Nov 18) at 7PM. The primary swell is predicted to be 1.3m and 6s period with a secondary swell of 0.1m and 8s. The wind is predicted to be glassy as the swell arrives.
The most powerful waves expected at Asa in the next 16 days are 2.4m 7s and forecast to arrive on Monday (Nov 16) at 4AM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.2m 6s period and expected on Friday (Nov 13) at 4PM.
| Wave Type | Time (CET) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 7PM (Wed 18th Nov) | 4.5ft (1.3m) 6s |
| Best Surf | 7PM (Wed 18th Nov) | 4.5ft (1.3m) 6s |
| Most Powerful | 4AM (Mon 16th Nov) | 8ft (2.4m) 7s |
Table - best surf conditions forecast for Asa over the next 16 days.
Short Range ForecastLight rain (total 2mm), mostly falling on Thu night. Mild temperatures (max 9°C on Sat morning, min 3°C on Thu night). Winds increasing (light winds from the NNW on Fri night, strong winds from the S by Sun afternoon). | Days 4-6 Weather SummaryModerate rain (total 15mm), heaviest on Sun night. Very mild (max 10°C on Sun night, min 4°C on Tue night). Winds decreasing (strong winds from the S on Sun night, calm by Wed morning). | ||||||||||||||||||||
Friday 13 | Saturday 14 | Sunday 15 | Monday 16 | Tuesday 17 | Wednesday 18 | Thursday 19 | |||||||||||||||
AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | |
Swell Height Map |  |  |  |  |  |  |  | ||||||||||||||
Wave Height (m) Direction Period (s) | NW 6 | NW 5 | WNW 9 | W 5 | WSW 5 | SW 6 | SSW 6 | SSW 6 | SSW 7 | SSW 6 | SSW 6 | SSW 5 | SW 6 | WSW 6 | SW 5 | S 4 | S 6 | S 6 | NW 5 | NW 3 | WNW 4 |
Wave Graph  | |||||||||||||||||||||
 kJ | 147 | 0 | 7 | 109 | 94 | 154 | 122 | 255 | 458 | 184 | 81 | 19 | 455 | 148 | 44 | 16 | 105 | 0 | 3 | 0 | 8 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-off | cross-on | cross-on | on | on | cross-on | cross-on | cross-on | on | on | cross-on | on | cross-on | cross-off | cross | glassy | off | cross | cross-on | glassy |
High Tide | 9:48AM0.12m | 11:10PM0.13m | 10:57AM0.12m | 00:11AM0.13m | 11:59AM0.12m | 1:04AM0.12m | 12:53PM0.13m | 1:48AM0.11m | 1:40PM0.12m | 2:24AM0.10m | 2:22PM0.12m | 2:54AM0.09m | 3:00PM0.12m | 3:18AM0.08m | |||||||
Low Tide | 4:20AM0.08m | 4:22PM0.06m | 5:31AM0.08m | 5:41PM0.05m | 6:27AM0.07m | 6:44PM0.05m | 7:10AM0.06m | 7:40PM0.04m | 7:46AM0.05m | 8:28PM0.03m | 8:15AM0.04m | 9:10PM0.02m | 8:40AM0.03m | 9:45PM0.01m | |||||||
 |  |  | | |  | |  |  | |  | | |  |  | | | | | |  | |
 | 7:48 | — | — | 7:50 | — | — | 7:52 | — | — | 7:54 | — | — | 7:56 | — | — | 7:58 | — | — | 8:02 | — | — |
 | — | 4:01 | — | — | 4:00 | — | — | 3:57 | — | — | 3:56 | — | — | 3:53 | — | — | 3:52 | — | — | 3:51 | — |
mm | — | — | — | — | — | — | — | 1 | 5 | 2 | — | 3 | — | 1 | — | 3 | 1 | — | — | — | 1 |
Temp °C | 5 | 6 | 7 | 9 | 9 | 9 | 7 | 7 | 10 | 10 | 9 | 7 | 7 | 7 | 6 | 4 | 4 | 4 | 5 | 6 | 6 |
Feels °C | -5 | -3 | 1 | 1 | 2 | 1 | -1 | -2 | 2 | 2 | 3 | 4 | 2 | 2 | 2 | 2 | 2 | 1 | 0 | 0 | 3 |
Swell 1 Height (m) Direction Period (s) | — | — | WNW 9 | — | — | NW 8 | NW 9 | WNW 9 | NW 9 | NW 9 | W 9 | SSW 5 | — | WNW 6 | WNW 5 | W 8 | S 6 | S 6 | NW 5 | — | — |
| kJ | — | — | 7 | — | — | 16 | 19 | 8 | 3 | 3 | 2 | 19 | — | 4 | 6 | 1 | 64 | 30 | 3 | — | — |
Swell 2 Height (m) Direction Period (s) | — | — | SW 4 | — | — | — | — | — | — | — | — | WNW 3 | — | — | NW 9 | NW 4 | W 8 | — | — | — | — |
| kJ | — | — | 1 | — | — | — | — | — | — | — | — | 1 | — | — | 3 | 1 | 1 | — | — | — | — |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | W 9 | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | 2 | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | NW 6 | NW 5 | WNW 4 | W 5 | WSW 5 | SW 6 | SSW 6 | SSW 6 | SSW 7 | SSW 6 | SSW 6 | — | SW 6 | WSW 6 | SW 5 | S 4 | S 6 | NE 2 | — | NW 3 | WNW 4 |
| kJ | 147 | 35 | 6 | 109 | 94 | 154 | 122 | 255 | 458 | 184 | 81 | — | 455 | 148 | 44 | 16 | 105 | 1 | — | 3 | 8 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 684 | 846 | 834 | 835 | 767 | 721 | 902 | 662 | 684 | 658 | 662 | 186 | 660 | 218 | 362 | 215 | 0 | 335 | 281 | 345 | 852 |
Best forecast wave conditions in Kattegat and Skagerrack | |||||||||||||||||||||
Best forecast wave conditions in Sweden | |||||||||||||||||||||
Header Global | |||||||||||||||||||||
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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 16 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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