Surf Forecasts:
The Island surf forecast from 10 Sep 2026:
- Best quality surf: Tuesday 15 Sep, 3AM (local time) - 5ft (1.6m), 16s period, SW swell with cross-offshore winds.
- Most powerful swell: Tuesday 15 Sep, 6PM (local time) - 7ft (2.1m), 14s period, SW swell with 1,752 kJ wave energy.
- Next surfable swell (1★+): Friday 11 Sep, 3AM (local time) - 5ft (1.5m), 15s 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 Friday (Sep 11) at 3AM. The primary swell is predicted to be 1.5m and 15s period with a secondary swell of 0.1m and 24s. The wind is predicted to be offshore as the swell arrives.
The most powerful waves expected at The Island in the next 16 days are 2.1m 14s and forecast to arrive on Tuesday (Sep 15) at 6PM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.1m 5s period and expected on Friday (Sep 11) at 12AM.
| Wave Type | Time (ACST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 3AM (Fri 11th Sep) | 5ft (1.5m) 15s |
| Best Surf | 3AM (Tue 15th Sep) | 5ft (1.6m) 16s |
| Most Powerful | 6PM (Tue 15th Sep) | 7ft (2.1m) 14s |
Table - best surf conditions forecast for The Island over the next 16 days.
The Lowdown
Alright, this is Rusty, and I'm looking at what's on the table for The Island over the next couple of weeks.
Straight up, the first few days are a bit of a mixed bag. We've got some solid SW groundswell pushing in, but the conditions are a little finicky. The water temp is sitting right about average for the time of year, so no surprises there.
The best of the early action looks to be from Tuesday the 15th onward. Tuesday morning is a standout: we're looking at clean 6 ft swell, a strong 16-second period from the SW, and an offshore wind. The combined wave energy is a hefty 1703, so there's some real power in the water. At that size, this is definitely one for the advanced crew – it's going to be a proper session.
That pattern continues into Wednesday the 16th morning: another 6 ft SW groundswell with a 16-second period and a gentler offshore breeze. The energy is still high at 1765, and the conditions will be clean and lined up. The Island is consistent, so you know it's going to be working.
Now, looking further out, things get a bit more interesting – and a lot bigger. On the 22nd of September (that's about a week and a half away), Tuesday morning brings a 7 ft SW groundswell with a 17-second period. The combined energy jumps right up to 4599, which is proper strong. The wind is cross-off, so it'll be clean, but at that size and with that long period, it's going to be a heavy, powerful wave that breaks straight. This is expert territory only. The afternoon is a write-off with onshore chop.
The day after, Wednesday the 23rd, the early session is a bit messy with a cross-shore wind, but by the afternoon it turns golden: the same 7 ft SW swell meets a light cross-off breeze, and the conditions are clean. The energy is still very strong at 1862. This afternoon window on the 23rd is your long-range standout – a promising but not 100% certain bet for the experienced surfer.
There's a bit of a lull in between, with dropping swell and poor winds from the 18th through the 20th. Nothing worth paddling out for there.
So, to sum it up: the early best windows are Tuesday 15th and Wednesday 16th mornings for clean, overhead groundswell. The big, powerful standout to keep an eye on is the afternoon of Wednesday 23rd September.
Stay frothing,
Rusty
Short Range ForecastMostly dry. Warm (max 25°C on Sat afternoon, min 9°C on Thu morning). Winds decreasing (fresh winds from the E on Thu morning, light winds from the NNE by Fri morning). | Days 4-6 Weather SummaryMostly dry. Very mild (max 19°C on Sun morning, min 12°C on Tue morning). Wind will be generally light. | ||||||||||||||||||||
Thursday 10 | Friday 11 | Saturday 12 | Sunday 13 | Monday 14 | Tuesday 15 | Wednesday 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 |  |  |  |  |  |  |  | ||||||||||||||
Wave Height (m) Direction Period (s) | SW 16 | SW 16 | SW 15 | SW 15 | SW 15 | SW 16 | SW 15 | SW 16 | SW 15 | SW 16 | SW 16 | SW 15 | SW 14 | SW 18 | SW 16 | SW 15 | SW 15 | SW 15 | SW 16 | SW 15 | SW 15 |
Wave Graph  | |||||||||||||||||||||
 kJ | 1675 | 1513 | 1074 | 767 | 930 | 920 | 525 | 701 | 360 | 574 | 553 | 365 | 327 | 160 | 728 | 1610 | 1421 | 1647 | 1742 | 1551 | 1039 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | off | cross-off | off | cross-off | cross-off | off | cross-off | cross | cross-off | cross-on | cross | cross | cross-off | cross | cross-off | off | cross-off | off | off | cross | off |
High Tide | 9:54AM0.00m | 11:33AM0.00m | 1:05PM0.00m | 2:42PM0.00m | 4:38PM0.00m | 6:53PM0.00m | 9:04PM0.00m | ||||||||||||||
Low Tide | 10:44PM-0.00m | 00:19AM-0.00m | 1:52AM-0.00m | 3:38AM-0.00m | 5:44AM-0.00m | 8:00AM-0.00m | |||||||||||||||
 |  |  | | | |  | |  | | | | | | | | | | | | | |
 | 6:39 | — | — | 6:39 | — | — | 6:37 | — | — | 6:35 | — | — | 6:35 | — | — | 6:33 | — | — | 6:31 | — | — |
 | — | 6:21 | — | — | 6:21 | — | — | 6:22 | — | — | 6:22 | — | — | 6:22 | — | — | 6:23 | — | — | 6:24 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 13 | 19 | 17 | 18 | 19 | 19 | 23 | 25 | 25 | 19 | 16 | 15 | 16 | 15 | 14 | 15 | 15 | 15 | 17 | 17 | 19 |
Feels °C | 7 | 14 | 10 | 15 | 15 | 14 | 16 | 21 | 20 | 18 | 12 | 12 | 13 | 12 | 11 | 11 | 10 | 11 | 15 | 13 | 15 |
Swell 1 Height (m) Direction Period (s) | SW 16 | SW 16 | SW 15 | SW 15 | SW 15 | SW 16 | SW 15 | SW 16 | SW 15 | SW 16 | SW 16 | SW 15 | SW 14 | SW 10 | SW 16 | SW 15 | SW 15 | SW 15 | SW 16 | SW 15 | SW 15 |
| kJ | 1675 | 1513 | 1074 | 767 | 930 | 920 | 525 | 701 | 360 | 574 | 553 | 365 | 327 | 132 | 728 | 1610 | 1421 | 1647 | 1742 | 1551 | 1039 |
Swell 2 Height (m) Direction Period (s) | SSE 17 | SW 26 | SW 26 | SW 24 | SSE 17 | S 17 | SW 18 | S 18 | SW 18 | S 17 | WNW 4 | SW 4 | SW 19 | SW 14 | S 17 | S 16 | — | S 15 | S 17 | SSE 17 | S 15 |
| kJ | 28 | 26 | 25 | 22 | 28 | 23 | 318 | 6 | 258 | 6 | 6 | 2 | 125 | 160 | 6 | 20 | — | 4 | 23 | 28 | 18 |
Swell 3 Height (m) Direction Period (s) | — | SW 26 | SW 25 | — | — | — | — | — | S 18 | — | — | S 16 | WSW 4 | SW 18 | — | — | — | — | — | — | — |
| kJ | — | 26 | 24 | — | — | — | — | — | 6 | — | — | 5 | 1 | 154 | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | ESE 4 | ESE 4 | ESE 5 | E 4 | — | SE 4 | NNE 4 | N 3 | N 4 | NNW 4 | W 5 | — | — | — | SSE 3 | SE 4 | SSE 4 | ESE 5 | — | — | — |
| kJ | 17 | 12 | 50 | 18 | — | 4 | 7 | 4 | 9 | 11 | 4 | — | — | — | 6 | 13 | 19 | 42 | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 148 | 5 | 51 | 13 | 0 | 0 | 24 | 24 | 24 | 154 | 995 | 154 | 0 | 479 | 0 | 0 | 337 | 0 | 0 | 154 | 0 |
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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