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A-Bay (Willyama Bay) Surf Forecast
/ SA – Yorke Peninsula (14 breaks) / South Australia (91 breaks) /
Surf Forecasts:
A-Bay (Willyama Bay) surfForecast / SA – Yorke Peninsula / Australia
12 Day Weather and Surf, issued 8 pm Tuesday 26 Aug 2025 ACST
Best Forecast Surf Conditions for A-Bay (Willyama Bay) this week:
The surf forecast for A-Bay (Willyama Bay) over the next 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Sunday (Aug 31) at 12AM. The primary swell is predicted to be 1.2m and 12s period with a secondary swell of 0.1m and 18s. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at A-Bay (Willyama Bay) in the next 12 days are 3.5m 13s and forecast to arrive on Friday (Aug 29) at 9PM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.6m 4s period and expected on Tuesday (Sep 02) at 3PM.
| Wave Type | Time (ACST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 12AM (Sun 31st Aug) | 4ft (1.2m) 12s |
| Best Surf | 3PM (Mon 1st Sep) | 4.5ft (1.3m) 18s |
| Most Powerful | 9PM (Fri 29th Aug) | 11ft (3.5m) 13s |
Table - best surf conditions forecast for A-Bay (Willyama Bay) over the next 12 days.
Short Range Forecast Heavy rain (total 26mm), heaviest during Tue night. Very mild (max 13°C on Tue night, min 9°C on Fri morning). Winds increasing (fresh winds from the WSW on Wed morning, near gales from the SW by Fri afternoon). | Days 3-6 Weather Summary Some drizzle, heaviest during Fri night. Very mild (max 13°C on Sun afternoon, min 9°C on Fri night). Winds decreasing (strong winds from the SSW on Fri night, light winds from the WNW by Mon afternoon). | |||||||||||||||||||||
Wednesday 27 | Thursday 28 | Friday 29 | Saturday 30 | Sunday 31 | Monday 01 | Tue 02 | ||||||||||||||||
| Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | ||
Rating (10 max) | ||||||||||||||||||||||
Swell Height Map |  |  |  |  |  |  |  |  | ||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||
| Period(s) (?) | 11 | 12 | 12 | 12 | 11 | 11 | 9 | 11 | 12 | 13 | 13 | 13 | 12 | 11 | 11 | 22 | 20 | 18 | 17 | 16 | 15 | |
Wave (?)Graph  | ||||||||||||||||||||||
| Energy (?) | 1489 | 1474 | 1448 | 1600 | 1106 | 1168 | 846 | 2536 | 3260 | 3233 | 3436 | 1102 | 429 | 220 | 274 | 338 | 522 | 1092 | 1179 | 822 | 525 | |
Wind (km/h) | ||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross | cross- on | cross- on | cross | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | off | cross- off | |
High Tide / height (m) | 3:47AM 0.77 | 3:45PM 0.76 | 4:09AM 0.81 | 3:57PM 0.68 | 4:31AM 0.82 | 4:04PM 0.60 | 4:54AM 0.81 | 4:00PM 0.53 | 5:19AM 0.78 | 3:33PM 0.49 | 5:51AM 0.72 | 2:10PM 0.50 | 6:46AM 0.66 | |||||||||
Low Tide / height (m) | 9:42PM 0.09 | 9:46AM 0.13 | 9:51PM 0.09 | 10:16AM 0.18 | 9:59PM 0.09 | 10:44AM 0.24 | 10:05PM 0.09 | 11:11AM 0.31 | 10:08PM 0.10 | 11:39AM 0.40 | 10:09PM 0.10 | 12:18PM 0.50 | 10:03PM 0.11 | |||||||||
Wednesday 27 | Thursday 28 | Friday 29 | Saturday 30 | Sunday 31 | Monday 01 | Tue 02 | ||||||||||||||||
| Sunrise | - | 6:48 | - | - | 6:48 | - | - | 6:46 | - | - | 6:45 | - | - | 6:43 | - | - | 6:41 | - | - | 6:41 | - | |
| Sunset | - | - | 5:58 | - | - | 5:59 | - | - | 6:00 | - | - | 6:00 | - | - | 6:00 | - | - | 6:01 | - | - | 6:02 | |
 |  | | | | | |  | | |  | |  |  | | | |  |  | | | ||
Rain (mm) | 7 | 1 | 1 | 5 | 3 | 1 | 4 | 2 | 2 | 1 | - | - | - | - | - | - | - | - | - | - | - | |
| Temp. °C | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 10 | 10 | 10 | 12 | 12 | 12 | 12 | 13 | 13 | 13 | 13 | 12 | 13 | 14 | |
| Feels °C (?) | 4 | 5 | 5 | 5 | 5 | 5 | 5 | -2 | -2 | 0 | 6 | 6 | 8 | 8 | 8 | 9 | 8 | 9 | 10 | 9 | 11 | |
- Map Icons:
Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
Recent Eyeball Surf Reports for SA - Yorke Peninsula
Offshore wind has become very light (light winds from the SE at Stenhouse Bay 6 km from A-Bay (Willyama Bay)). Surf should be turning clean at A-Bay (Willyama Bay). 2.2m 4s local chop from the W to make surfable waves.
1 h 16 min ago
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 A-Bay (Willyama Bay) 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.
Information about the A-Bay (Willyama Bay) Surf forecast
The above surf forecast table for A-Bay (Willyama Bay) provides essential information for determining whether the surfing conditions will be good over the next 12 days. A general guide to surfing at A-Bay (Willyama Bay) can be found by selecting the local surf guide option on the grey menu. Our A-Bay (Willyama Bay) 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 (A-Bay (Willyama Bay)) 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 A-Bay (Willyama Bay) 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.
Are you planning a holiday in Yorke Peninsula? If you are looking for accommodation near A-Bay, camping, hotels and holiday cottages in Yorke Peninsula, consider staying in Kingscote which is 74 km (46 miles) away.
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