Surf Forecasts:
A-Bay (Willyama Bay) surf forecast from 15 Oct 2026:
- Best quality surf: Thursday 22 Oct, 1AM (local time) - 5ft (1.5m), 16s period, SSW swell with cross-offshore winds.
- Most powerful swell: Thursday 22 Oct, 10PM (local time) - 7.5ft (2.3m), 15s period, SW swell with 2,208 kJ wave energy.
- Next surfable swell (1★+): Wednesday 21 Oct, 4PM (local time) - 3ft (0.9m), 17s period with SW swell.
Best Forecast Surf Conditions for A-Bay (Willyama Bay) this week:
The surf forecast for A-Bay (Willyama Bay) over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Wednesday (Oct 21) at 4PM. The primary swell is predicted to be 0.9m and 17s period with a secondary swell of 0.6m and 12s. The wind is predicted to be glassy as the swell arrives.
The most powerful waves expected at A-Bay (Willyama Bay) in the next 16 days are 2.3m 15s and forecast to arrive on Thursday (Oct 22) at 10PM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.0m 4s period and expected on Monday (Oct 19) at 4AM.
| Wave Type | Time (ACDT) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 4PM (Wed 21st Oct) | 3ft (0.9m) 17s |
| Best Surf | 1AM (Thu 22nd Oct) | 5ft (1.5m) 16s |
| Most Powerful | 10PM (Thu 22nd Oct) | 7.5ft (2.3m) 15s |
Table - best surf conditions forecast for A-Bay (Willyama Bay) over the next 16 days.
Short Range ForecastMostly dry. Warm (max 24°C on Sun morning, min 15°C on Thu night). Wind will be generally light. | Days 5-7 Weather SummaryMostly dry. Warm (max 26°C on Mon afternoon, min 13°C on Tue night). Winds decreasing (fresh winds from the N on Mon night, light winds from the ESE by Wed morning). | |||||||||||||||||||
Thu 15 | Friday 16 | Saturday 17 | Sunday 18 | Monday 19 | Tuesday 20 | Wednesday 21 | ||||||||||||||
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) | SSW 12 | SSW 11 | SW 13 | SSW 13 | SW 12 | SW 16 | SW 16 | SW 15 | SSW 15 | SW 14 | SW 17 | SW 15 | SW 15 | SW 14 | SW 14 | SW 13 | SW 13 | SW 13 | SW 17 | SSW 16 |
Wave Graph  | ||||||||||||||||||||
 kJ | 125 | 85 | 44 | 66 | 38 | 69 | 65 | 57 | 146 | 248 | 728 | 581 | 558 | 507 | 357 | 245 | 205 | 205 | 439 | 1141 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | cross-on | cross | on | cross-on | cross-on | cross-on | cross | cross | cross | cross-off | cross-off | cross-off | cross-off | cross-off | cross | on | cross-on | glassy | cross-off |
High Tide | 4:52AM0.93m | 4:11PM0.40m | 5:15AM0.86m | 3:56PM0.38m | 5:39AM0.78m | 3:02PM0.39m | 6:02AM0.69m | 6:26AM0.58m | 5:23AM0.48m | 2:57AM0.47m | ||||||||||
Low Tide | 9:43PM0.02m | 11:44AM0.21m | 9:52PM0.03m | 12:13PM0.30m | 9:58PM0.06m | 12:54PM0.38m | 9:55PM0.09m | 9:37PM0.13m | 8:59PM0.16m | 7:02AM0.48m | 8:21PM0.18m | |||||||||
 |  |  | |  | | | | | | | | | |  | | | | | | |
 | — | — | 6:39 | — | — | 6:37 | — | — | 6:35 | — | — | 6:35 | — | — | 6:33 | — | — | 6:31 | — | — |
 | 7:36 | — | — | 7:36 | — | — | 7:37 | — | — | 7:37 | — | — | 7:38 | — | — | 7:39 | — | — | 7:40 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 17 | 17 | 21 | 21 | 19 | 22 | 23 | 21 | 24 | 25 | 23 | 23 | 26 | 25 | 17 | 15 | 14 | 20 | 20 | 20 |
Feels °C | 13 | 13 | 19 | 17 | 15 | 19 | 20 | 18 | 22 | 23 | 18 | 19 | 22 | 21 | 15 | 13 | 12 | 18 | 18 | 17 |
Swell 1 Height (m) Direction Period (s) | SSW 12 | SSW 11 | SW 13 | SSW 13 | SW 12 | SW 16 | SW 16 | SW 15 | SSW 15 | SW 14 | SW 17 | SW 15 | SW 15 | SW 14 | SW 14 | SW 13 | SW 13 | SW 13 | SW 17 | SSW 16 |
| kJ | 125 | 85 | 44 | 66 | 38 | 69 | 65 | 57 | 146 | 248 | 728 | 581 | 558 | 507 | 357 | 245 | 205 | 205 | 439 | 1141 |
Swell 2 Height (m) Direction Period (s) | S 6 | — | SW 10 | SW 19 | SSW 18 | SW 12 | SSW 12 | SW 12 | WSW 10 | SW 20 | — | W 6 | NW 5 | ENE 3 | WSW 4 | SW 24 | SW 5 | SSW 19 | SW 12 | — |
| kJ | 1 | — | 26 | 15 | 31 | 37 | 14 | 22 | 11 | 15 | — | 1 | 1 | 1 | 7 | 22 | 5 | 148 | 118 | — |
Swell 3 Height (m) Direction Period (s) | — | — | S 20 | SW 19 | — | — | — | — | — | NNW 5 | — | — | — | NNW 4 | ENE 4 | — | SSW 21 | WSW 5 | — | — |
| kJ | — | — | 8 | 15 | — | — | — | — | — | 2 | — | — | — | 1 | 1 | — | 45 | 2 | — | — |
Wind waves Height (m) Direction Period (s) | ESE 4 | ESE 4 | ESE 4 | E 3 | ESE 3 | E 3 | E 3 | E 3 | NE 4 | ENE 4 | NE 4 | NNE 4 | NNE 4 | — | — | WSW 4 | SE 3 | — | — | ENE 3 |
| kJ | 2 | 13 | 5 | 1 | 5 | 3 | 3 | 5 | 6 | 2 | 16 | 34 | 17 | — | — | 12 | 2 | — | — | 2 |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 13 | 13 | 11 | 87 | 87 | 13 | 155 | 152 | 535 | 11 | 11 | 0 | 0 |
Best forecast wave conditions in Yorke Peninsula | ||||||||||||||||||||
Best forecast wave conditions in Australia | ||||||||||||||||||||
Header Global | ||||||||||||||||||||
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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 16 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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