Surf Forecasts:
The Island surf forecast from 12 Aug 2026:
- Best quality surf: Thursday 13 Aug, 9AM (local time) - 7.5ft (2.3m), 16s period, SW swell with glassy winds.
- Most powerful swell: Wednesday 12 Aug, 6PM (local time) - 11ft (3.5m), 16s period, SW swell with 5,485 kJ wave energy.
- Next surfable swell (1★+): Thursday 13 Aug, 9AM (local time) - 7.5ft (2.3m), 16s period with SW swell.
Best Forecast Surf Conditions for The Island this week:
The surf forecast for The Island over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Thursday (Aug 13) at 9AM. The primary swell is predicted to be 2.3m and 16s period with a secondary swell of 0.2m and 16s. The wind is predicted to be glassy as the swell arrives.
The most powerful waves expected at The Island in the next 16 days are 3.5m 16s and forecast to arrive on Wednesday (Aug 12) at 6PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.8m 4s period and expected on Tuesday (Aug 18) at 9AM.
| Wave Type | Time (ACST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 9AM (Thu 13th Aug) | 7.5ft (2.3m) 16s |
| Best Surf | 9AM (Thu 13th Aug) | 7.5ft (2.3m) 16s |
| Most Powerful | 6PM (Wed 12th Aug) | 11ft (3.5m) 16s |
Table - best surf conditions forecast for The Island over the next 16 days.
Short Range ForecastMostly dry. Very mild (max 15°C on Thu night, min 13°C on Wed night). Wind will be generally light. | Days 4-6 Weather SummaryMostly dry. Very mild (max 17°C on Mon afternoon, min 10°C on Mon morning). Winds decreasing (fresh winds from the ESE on Sun night, light winds from the SE by Mon afternoon). | ||||||||||||||||||||
Wednesday 12 | Thursday 13 | Friday 14 | Saturday 15 | Sunday 16 | Monday 17 | Tuesday 18 | |||||||||||||||
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 16 | SW 16 | SW 15 | SW 16 | SW 16 | SW 16 | SW 16 | SW 16 | SW 16 | SW 15 | SW 14 | SW 14 | SW 14 | SW 16 | SW 15 | SW 15 | SW 18 | SW 17 | SW 16 |
Wave Graph  | |||||||||||||||||||||
 kJ | 3904 | 3294 | 2875 | 2668 | 2208 | 2266 | 2537 | 2344 | 1968 | 1634 | 1494 | 1025 | 825 | 726 | 565 | 813 | 842 | 543 | 781 | 482 | 310 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | cross-on | glassy | on | glassy | glassy | cross-off | cross-off | off | off | off | off | cross-off | off | off | cross-off | off | cross-off | cross | cross-on |
High Tide | 10:29AM0.00m | 12:16PM0.00m | 1:53PM0.00m | 3:27PM0.00m | 5:12PM0.00m | ||||||||||||||||
Low Tide | 9:31PM-0.00m | 11:25PM-0.00m | 1:05AM-0.00m | 2:40AM-0.00m | 4:17AM-0.00m | 6:13AM-0.00m | |||||||||||||||
 | |  |  | |  |  | |  | | | | | | | | | | | | | |
 | 7:15 | — | — | 7:13 | — | — | 7:13 | — | — | 7:11 | — | — | 7:11 | — | — | 7:09 | — | — | 7:07 | — | — |
 | — | 6:01 | — | — | 6:01 | — | — | 6:02 | — | — | 6:04 | — | — | 6:04 | — | — | 6:05 | — | — | 6:06 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 14 | 14 | 14 | 14 | 14 | 15 | 14 | 14 | 14 | 14 | 15 | 15 | 14 | 14 | 12 | 15 | 17 | 17 | 18 | 20 | 18 |
Feels °C | 9 | 9 | 11 | 12 | 11 | 14 | 12 | 11 | 10 | 9 | 11 | 11 | 9 | 8 | 5 | 12 | 14 | 13 | 10 | 14 | 12 |
Swell 1 Height (m) Direction Period (s) | S 17 | S 17 | SW 16 | SW 16 | SW 15 | SW 16 | SW 16 | SW 16 | SW 16 | SW 16 | SW 16 | SW 15 | SW 14 | SW 14 | SW 14 | SW 16 | SW 15 | SW 15 | SW 18 | SW 17 | SW 16 |
| kJ | 22 | 23 | 2875 | 2668 | 2208 | 2266 | 2537 | 2344 | 1968 | 1634 | 1494 | 1025 | 825 | 726 | 565 | 813 | 842 | 543 | 781 | 482 | 310 |
Swell 2 Height (m) Direction Period (s) | — | — | SSE 16 | SSE 16 | SSE 16 | SSE 16 | SSE 17 | SSE 16 | SSE 16 | SSE 16 | S 16 | S 15 | S 15 | — | — | SW 23 | SW 22 | SW 19 | S 18 | S 18 | WNW 6 |
| kJ | — | — | 27 | 26 | 25 | 26 | 27 | 26 | 26 | 25 | 5 | 4 | 4 | — | — | 85 | 166 | 369 | 6 | 6 | 11 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | S 16 | S 16 | S 20 | — | — | S 17 |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 5 | 5 | 7 | — | — | 5 |
Wind waves Height (m) Direction Period (s) | SW 17 | SW 16 | — | — | — | — | — | — | — | — | — | E 4 | — | S 14 | SE 4 | ESE 4 | — | — | NNE 4 | N 4 | N 4 |
| kJ | 3904 | 3294 | — | — | — | — | — | — | — | — | — | 9 | — | 4 | 16 | 5 | — | — | 20 | 15 | 9 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 1083 | 1075 | 498 | 0 | 154 | 0 | 0 | 0 | 89 | 0 | 0 | 0 | 0 | 210 | 0 | 0 | 0 | 0 | 498 | 412 | 133 |
Best forecast wave conditions in Eyre Peninsula | |||||||||||||||||||||
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 The Island 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 The Island Surf forecast
The above surf forecast table for The Island provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at The Island can be found by selecting the local surf guide option on the grey menu. Our The Island 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 (The Island) 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 The Island 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 Eyre Peninsula? If you are looking for accommodation near The Island, camping, hotels and holiday cottages in Eyre Peninsula, consider staying in Thevenard which is 111 km (69 miles) away.
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