Surf Forecasts:
Vivonne Bay surf forecast from 18 Sep 2026:
- Best quality surf: Friday 18 Sep, 9PM (local time) - 4.5ft (1.4m), 14s period, SW swell with offshore winds.
- Most powerful swell: Monday 21 Sep, 6PM (local time) - 13ft (4.0m), 15s period, SW swell with 6,687 kJ wave energy.
- Next surfable swell (1★+): Friday 18 Sep, 9PM (local time) - 4.5ft (1.4m), 14s period with SW swell.
Best Forecast Surf Conditions for Vivonne Bay this week:
The surf forecast for Vivonne Bay over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Friday (Sep 18) at 9PM. The primary swell is predicted to be 1.4m and 14s period with a secondary swell of 0.9m and 6s. The wind is predicted to be offshore as the swell arrives.
The most powerful waves expected at Vivonne Bay in the next 16 days are 4.0m 15s and forecast to arrive on Monday (Sep 21) at 6PM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.1m 5s period and expected on Sunday (Sep 20) at 9AM.
| Wave Type | Time (ACST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 9PM (Fri 18th Sep) | 4.5ft (1.4m) 14s |
| Best Surf | 9PM (Fri 18th Sep) | 4.5ft (1.4m) 14s |
| Most Powerful | 6PM (Mon 21st Sep) | 13ft (4.0m) 15s |
Table - best surf conditions forecast for Vivonne Bay over the next 16 days.
Short Range ForecastMostly dry. Warm (max 23°C on Sat morning, min 10°C on Sun night). Mainly strong winds. | Days 4-6 Weather SummaryLight rain (total 3mm), mostly falling on Wed afternoon. Very mild (max 18°C on Wed morning, min 8°C on Mon night). Wind will be generally light. | ||||||||||||||||||||
Friday 18 | Saturday 19 | Sunday 20 | Monday 21 | Tuesday 22 | Wednesday 23 | Thursday 24 | |||||||||||||||
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) | SW 17 | SW 16 | SW 14 | SW 13 | SW 12 | SW 12 | SW 16 | WSW 14 | SW 14 | SW 14 | SW 14 | SW 15 | SW 15 | SW 15 | SW 15 | SW 14 | SW 14 | SW 14 | SW 13 | SW 13 | SW 13 |
Wave Graph  | |||||||||||||||||||||
 kJ | 2162 | 1394 | 799 | 495 | 392 | 335 | 1630 | 2692 | 3208 | 5116 | 6326 | 5785 | 4394 | 4353 | 3573 | 2095 | 1408 | 1073 | 947 | 991 | 777 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-off | cross-off | cross-off | cross-off | cross | off | cross-off | cross | cross-on | cross-on | on | cross-on | cross | cross | cross-off | glassy | on | on | cross-on | cross-on |
High Tide | 1:15PM0.71m | 3:24AM0.89m | 12:32PM0.70m | 4:04AM0.81m | 10:11AM0.82m | 10:34AM0.89m | 00:07AM0.61m | 10:58AM0.94m | 11:46PM0.68m | 11:22AM0.98m | 11:48PM0.77m | ||||||||||
Low Tide | 7:52PM0.21m | 9:16AM0.66m | 7:51PM0.26m | 9:01AM0.74m | 7:30PM0.31m | 6:49PM0.34m | 6:17PM0.33m | 4:14AM0.51m | 6:04PM0.32m | 4:53AM0.42m | 6:03PM0.30m | ||||||||||
 | |  | | | | |  |  | | | | | | |  |  | | | | | |
 | 6:18 | — | — | 6:16 | — | — | 6:15 | — | — | 6:13 | — | — | 6:11 | — | — | 6:09 | — | — | 6:09 | — | — |
 | — | 6:13 | — | — | 6:14 | — | — | 6:15 | — | — | 6:15 | — | — | 6:15 | — | — | 6:16 | — | — | 6:17 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 3 | — | — | — | — |
Temp °C | 19 | 19 | 18 | 23 | 22 | 20 | 20 | 17 | 13 | 12 | 12 | 10 | 14 | 15 | 16 | 18 | 14 | 14 | 14 | 14 | 22 |
Feels °C | 12 | 13 | 13 | 17 | 17 | 16 | 15 | 11 | 6 | 7 | 6 | 5 | 9 | 10 | 11 | 13 | 14 | 12 | 11 | 11 | 17 |
Swell 1 Height (m) Direction Period (s) | SW 17 | SW 16 | SW 14 | SW 13 | SW 12 | SW 12 | SW 16 | SSW 15 | SW 14 | SW 14 | SW 14 | SW 15 | SW 15 | SW 15 | SW 15 | SW 14 | SW 14 | SW 14 | SW 13 | SW 13 | SW 13 |
| kJ | 2162 | 1394 | 799 | 495 | 392 | 335 | 1630 | 1275 | 902 | 5116 | 6326 | 5785 | 4394 | 4353 | 3573 | 2095 | 1408 | 1073 | 947 | 991 | 777 |
Swell 2 Height (m) Direction Period (s) | — | SSW 16 | — | SW 19 | SW 19 | SSW 15 | — | — | SSW 18 | — | — | — | — | S 16 | — | — | ENE 5 | ENE 4 | — | — | SW 16 |
| kJ | — | 582 | — | 94 | 122 | 283 | — | — | 131 | — | — | — | — | 2178 | — | — | 8 | 3 | — | — | 68 |
Swell 3 Height (m) Direction Period (s) | — | — | — | SSW 20 | NE 4 | W 6 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | SSE 9 |
| kJ | — | — | — | 38 | 1 | 29 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 16 |
Wind waves Height (m) Direction Period (s) | NNW 4 | WNW 5 | W 7 | W 8 | W 7 | NNE 3 | WNW 5 | WSW 14 | SW 14 | — | — | — | E 5 | E 5 | ENE 4 | NE 4 | — | — | — | — | E 3 |
| kJ | 11 | 33 | 89 | 111 | 102 | 6 | 74 | 2692 | 3208 | — | — | — | 42 | 39 | 19 | 19 | — | — | — | — | 5 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 85 | 83 | 83 | 83 | 82 | 3 | 665 | 651 | 685 | 40 | 90 | 94 | 144 | 30 | 30 | 3 | 3 | 90 | 90 | 40 | 3 |
Best forecast wave conditions in Kangaroo Island | |||||||||||||||||||||
Best forecast wave conditions in Australia | |||||||||||||||||||||
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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 Vivonne 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 Vivonne Bay Surf forecast
The above surf forecast table for Vivonne Bay provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Vivonne Bay can be found by selecting the local surf guide option on the grey menu. Our Vivonne 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 (Vivonne 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 Vivonne 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 Kangaroo Island? If you are looking for accommodation near Vivonne Bay, camping, hotels and holiday cottages in Kangaroo Island, consider staying in Kingscote which is 55 km (34 miles) away.
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