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Cape Kersaint Surf Forecast
/ SA – Kangaroo Island (8 breaks) / South Australia (91 breaks) /
Surf Forecasts:
Cape Kersaint surfForecast / SA – Kangaroo Island / Australia
16 Day Weather and Surf, issued 8 am Sunday 10 May 2026 ACSTForecast update in hr min s Forecast update imminent
Cape Kersaint surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Cape Kersaint sea temperature is
17.4° C
(Which is slightly warmer than usual)Best Forecast Surf Conditions for Cape Kersaint this week:
The surf forecast for Cape Kersaint over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Tuesday (May 12) at 3AM. The primary swell is predicted to be 1.3m and 14s period with a secondary swell of 0.4m and 22s. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Cape Kersaint in the next 16 days are 2.4m 18s and forecast to arrive on Thursday (May 14) at 3PM. Winds are predicted to be offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.8m 4s period and expected on Friday (May 15) at 9AM.
| Wave Type | Time (ACST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 3AM (Tue 12th May) | 4.5ft (1.3m) 14s |
| Best Surf | 9PM (Sat 16th May) | 10ft (3.0m) 15s |
| Most Powerful | 3PM (Thu 14th May) | 8ft (2.4m) 18s |
Table - best surf conditions forecast for Cape Kersaint over the next 16 days.
Updates in hr min s Forecast update imminent
Short Range ForecastMostly dry. Very mild (max 17°C on Tue afternoon, min 14°C on Sun morning). Wind will be generally light. | Days 4-6 Weather SummaryLight rain (total 5mm), mostly falling on Fri afternoon. Warm (max 21°C on Wed morning, min 15°C on Fri night). Wind will be generally light. | ||||||||||||||||||||
Sunday 10 | Monday 11 | Tuesday 12 | Wednesday 13 | Thursday 14 | Friday 15 | Saturday 16 | |||||||||||||||
AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | |
Swell Height Map |  |  |  |  |  |  |  | ||||||||||||||
SSW 12 | SSW 12 | SSW 14 | SSW 14 | SSW 13 | SSW 12 | SSW 14 | SSW 18 | SSW 16 | SW 14 | SW 13 | SW 13 | SW 16 | SW 18 | SW 16 | SW 15 | SW 14 | SW 14 | SW 14 | SW 13 | SW 15 | |
997 | 980 | 638 | 1226 | 950 | 444 | 537 | 399 | 604 | 317 | 295 | 235 | 628 | 3523 | 2905 | 2089 | 1836 | 1837 | 2191 | 2158 | 3197 | |
Wind (km/h) | |||||||||||||||||||||
cross-on | cross-on | cross-on | cross | cross-on | cross | cross | cross-on | cross | glassy | cross-off | cross-off | off | off | off | off | cross-off | cross-off | glassy | on | cross-off | |
High Tide | 4:47PM0.79m | 8:22PM0.73m | 10:37AM0.70m | 9:40PM0.72m | 10:39AM0.82m | 10:25PM0.70m | 10:59AM0.95m | 11:00PM0.66m | 11:25AM1.06m | 11:28PM0.61m | 11:54AM1.14m | 11:48PM0.55m | |||||||||
Low Tide | 4:34AM0.45m | 3:52AM0.43m | 3:58PM0.55m | 3:56AM0.41m | 4:57PM0.46m | 4:09AM0.37m | 5:42PM0.38m | 4:25AM0.34m | 6:25PM0.34m | 4:41AM0.29m | 7:07PM0.33m | ||||||||||
 | |  |  | | | | | | | | | |  |  | |  |  | | |  | |
 | 7:05 | — | — | 7:07 | — | — | 7:07 | — | — | 7:07 | — | — | 7:09 | — | — | 7:09 | — | — | 7:11 | — | — |
 | — | 5:29 | — | — | 5:28 | — | — | 5:27 | — | — | 5:25 | — | — | 5:24 | — | — | 5:24 | — | — | 5:23 | — |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 | — | 3 | 1 | — | — | — | |
Temp °C | 14 | 14 | 15 | 15 | 15 | 15 | 16 | 17 | 17 | 21 | 20 | 18 | 20 | 19 | 18 | 20 | 19 | 17 | 17 | 17 | 16 |
12 | 11 | 13 | 12 | 12 | 13 | 14 | 14 | 17 | 19 | 16 | 16 | 17 | 17 | 17 | 18 | 17 | 16 | 16 | 15 | 15 | |
Swell 1 Height (m) Direction Period (s) | SSW 12 | SSW 12 | SSW 11 | SSW 14 | SSW 13 | SSW 12 | SSW 14 | SSW 13 | SSW 16 | SW 14 | SW 13 | SW 13 | SW 16 | SW 18 | SW 16 | SW 15 | SW 14 | SW 14 | SW 14 | SW 13 | SW 15 |
 kJ | 997 | 980 | 460 | 1226 | 950 | 444 | 537 | 326 | 604 | 317 | 295 | 235 | 628 | 3523 | 2905 | 2089 | 1836 | 1837 | 2191 | 2158 | 3197 |
Swell 2 Height (m) Direction Period (s) | — | S 15 | SSW 14 | — | — | SW 15 | SSW 20 | SSW 18 | SSE 8 | S 7 | S 6 | SE 6 | SW 20 | — | — | — | — | — | — | — | — |
| kJ | — | 224 | 638 | — | — | 217 | 256 | 399 | 54 | 36 | 19 | 13 | 576 | — | — | — | — | — | — | — | — |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | SSW 23 | SSW 19 | SSE 9 | SW 9 | S 12 | SW 20 | SW 17 | SSW 12 | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | 54 | 332 | 58 | 20 | 3 | 15 | 106 | 56 | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | — | — | SE 4 | — | ESE 5 | SE 4 | — | — | E 3 | — | — | — | NE 3 | NE 4 | — | N 4 | — | — | — | — | — |
| kJ | — | — | 16 | — | 19 | 14 | — | — | 1 | — | — | — | 3 | 16 | — | 21 | — | — | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 43 | 45 | 43 | 43 | 45 | 43 | 5 | 43 | 43 | 5 | 24 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 5 | 24 | 5 |
Best forecast wave conditions in Kangaroo Island | |||||||||||||||||||||
Best forecast wave conditions in Australia | |||||||||||||||||||||
Header Global | |||||||||||||||||||||
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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 Cape Kersaint 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 Cape Kersaint Surf forecast
The above surf forecast table for Cape Kersaint provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Cape Kersaint can be found by selecting the local surf guide option on the grey menu. Our Cape Kersaint 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 (Cape Kersaint) 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 Cape Kersaint 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 Cape Kersaint, camping, hotels and holiday cottages in Kangaroo Island, consider staying in Kingscote which is 62 km (39 miles) away.
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