Surf Forecasts:
The Island surf forecast from 4 Sep 2026:
- Best quality surf: Sunday 6 Sep, 6AM (local time) - 7ft (2.1m), 14s period, SW swell with glassy winds.
- Most powerful swell: Wednesday 9 Sep, 3PM (local time) - 8ft (2.5m), 18s period, SW swell with 4,330 kJ wave energy.
- Next surfable swell (1★+): Sunday 6 Sep, 6AM (local time) - 7ft (2.1m), 14s 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 Sunday (Sep 06) at 6AM. The primary swell is predicted to be 2.1m and 14s period with a secondary swell of 0.1m and 15s. 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 2.5m 18s and forecast to arrive on Wednesday (Sep 09) at 3PM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.3m 6s period and expected on Wednesday (Sep 09) at 9PM.
| Wave Type | Time (ACST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 6AM (Sun 6th Sep) | 7ft (2.1m) 14s |
| Best Surf | 6AM (Sun 6th Sep) | 7ft (2.1m) 14s |
| Most Powerful | 3PM (Wed 9th Sep) | 8ft (2.5m) 18s |
Table - best surf conditions forecast for The Island over the next 16 days.
The Lowdown
Alright surfers, Rusty here, and I’ve got the skinny on the next couple of weeks at The Island. The forecast is a bit of a mixed bag, but there are a couple of absolute gems tucked in there for those who are keen and patient.
The pattern starts off rough with a strong, messy cross-onshore wind and a big, ugly 8ft SW swell (combined energy of 2237) on Saturday the 5th. That’s a write-off. But hang tight, because things flip dramatically.
Sunday the 6th is where it gets interesting. The early morning session is the standout. We’ve got a solid 7ft SW groundswell pulsing, but the wind is a light 3 mph easterly, dead offshore. That’s glassy, clean perfection. The wave energy is strong (2144), and this is a consistent reef break, so it’ll be handling that power well. Just be aware, this is an advanced wave—over 7ft is getting serious. The water temp is about average for this time of year, so no surprises there.
That sweet spot carries into Tuesday the 8th. The morning is looking unreal: 6ft of SW groundswell (combined energy 1801) with glassy conditions from a light easterly breeze. The period is a very long 17 seconds, which means deep, powerful lines that will wrap beautifully around this reef. The afternoon stays clean with a 6ft SW swell, but it’s a bit smaller. Tuesday morning is the real highlight of the whole outlook.
The swell drops off a bit mid-week, but we get a stretch of clean, offshore winds from Wednesday the 9th through to the 12th. The swell is anywhere from 4ft to 7ft, but the wind is fresh and clean. The wave energy is moderate to strong (891 to 5024), so the power is there. It’s not the standout, but it’s solid, ridable surf.
After the 12th, the swell fades and the winds get messy. The last two weeks of the period are a write-off with onshore winds and weak, poor-quality surf. From around the 14th, there’s a gap of several days with no good recommendations.
The absolute best of the lot is Sunday the 6th morning, with Tuesday the 8th morning as a very close second. The Island is a consistent advanced reef, so crowds are possible, but for that quality, it’s worth the paddle. Do not sleep on the 6th.
Rusty.
Short Range ForecastMostly dry. Very mild (max 16°C on Fri night, min 10°C on Sun night). Winds decreasing (strong winds from the WSW on Fri night, calm by Sat night). | Days 5-7 Weather SummaryLight rain (total 5mm), mostly falling on Tue afternoon. Very mild (max 16°C on Mon night, min 9°C on Wed night). Winds increasing (calm on Tue morning, strong winds from the SE by Wed morning). | ||||||||||||||||||
Saturday 5 | Sunday 6 | Monday 7 | Tuesday 8 | Wednesday 9 | Thursday 10 | ||||||||||||||
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 15 | SW 12 | SW 14 | SW 14 | SW 14 | SW 14 | SW 13 | SW 13 | SW 13 | SW 18 | SW 17 | SW 16 | SW 16 | SW 17 | SW 18 | SW 17 | SW 16 | SW 16 | SW 15 |
Wave Graph  | |||||||||||||||||||
 kJ | 1500 | 2231 | 2205 | 2229 | 1549 | 1238 | 628 | 330 | 398 | 1925 | 1795 | 1511 | 1552 | 2823 | 4330 | 3377 | 2475 | 2241 | 1453 |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | on | cross-on | cross-on | cross-on | off | cross-off | cross-off | off | cross-off | off | glassy | cross-off | cross-off | cross-off | cross-off | cross-off | off | cross-off | off |
High Tide | 00:45AM0.00m | 2:23AM0.00m | 4:06AM0.00m | 6:00AM0.00m | 8:01AM0.00m | 9:54AM0.00m | |||||||||||||
Low Tide | 1:33PM-0.00m | 3:13PM-0.00m | 5:01PM-0.00m | 7:01PM-0.00m | 9:00PM-0.00m | 10:44PM-0.00m | |||||||||||||
 |  | |  |  | | |  | |  |  | |  | | | | | | | |
 | — | 6:47 | — | — | 6:45 | — | — | 6:43 | — | — | 6:43 | — | — | 6:41 | — | — | 6:39 | — | — |
 | 6:16 | — | 6:17 | — | — | 6:17 | — | — | 6:19 | — | — | 6:19 | — | — | 6:20 | — | — | 6:21 | — |
mm | — | — | — | — | — | — | — | — | — | — | 1 | 3 | 1 | — | — | — | — | — | — |
Temp °C | 16 | 13 | 13 | 13 | 13 | 13 | 13 | 14 | 15 | 16 | 13 | 12 | 13 | 13 | 14 | 11 | 13 | 16 | 11 |
Feels °C | 13 | 4 | 6 | 9 | 11 | 9 | 8 | 9 | 12 | 12 | 12 | 10 | 7 | 3 | 5 | 3 | 7 | 9 | 4 |
Swell 1 Height (m) Direction Period (s) | SW 15 | S 17 | S 14 | SW 14 | SW 14 | SW 14 | SW 13 | SW 13 | SW 13 | SW 18 | SW 17 | SW 16 | SW 16 | SW 17 | SW 18 | SW 17 | SW 16 | SW 16 | SW 15 |
| kJ | 1500 | 6 | 15 | 2229 | 1549 | 1238 | 628 | 330 | 398 | 1925 | 1795 | 1511 | 1552 | 2823 | 4330 | 3377 | 2475 | 2241 | 1453 |
Swell 2 Height (m) Direction Period (s) | S 16 | — | — | S 15 | SW 16 | S 14 | SW 23 | SW 21 | SW 20 | SSW 13 | S 18 | S 17 | — | SW 20 | — | — | SSE 18 | SW 26 | SW 25 |
| kJ | 19 | — | — | 18 | 595 | 4 | 21 | 71 | 264 | 721 | 6 | 6 | — | 2058 | — | — | 31 | 26 | 24 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | S 21 | — | — | — | — | — | — | — | — | — | SW 25 |
| kJ | — | — | — | — | — | — | — | — | 8 | — | — | — | — | — | — | — | — | — | 25 |
Wind waves Height (m) Direction Period (s) | — | SW 12 | SW 14 | — | — | — | SSE 4 | ESE 4 | SE 4 | SE 4 | — | — | SSE 5 | SSE 6 | SE 6 | ENE 4 | E 4 | SE 4 | ESE 5 |
| kJ | — | 2231 | 2205 | — | — | — | 29 | 17 | 5 | 29 | — | — | 38 | 143 | 88 | 5 | 16 | 20 | 57 |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 1073 | 1123 | 1287 | 154 | 0 | 89 | 89 | 0 | 0 | 0 | 0 | 0 | 1089 | 1515 | 1660 | 1075 | 337 | 337 | 5 |
Best forecast wave conditions in Eyre Peninsula | |||||||||||||||||||
Best forecast wave conditions in Australia | |||||||||||||||||||
Header Global | |||||||||||||||||||
- Map Icons:
Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
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 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.
Nearest