
Surf Forecasts:
The Island surf forecast from 10 Sep 2026:
- Best quality surf: Friday 11 Sep, 9PM (local time) - 4.5ft (1.4m), 16s period, SW swell with offshore winds.
- Most powerful swell: Tuesday 15 Sep, 12PM (local time) - 7ft (2.1m), 15s period, SW swell with 1,760 kJ wave energy.
- Next surfable swell (1★+): Friday 11 Sep, 12PM (local time) - 4.5ft (1.4m), 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 12PM. The primary swell is predicted to be 1.4m and 15s period with a secondary swell of 0.2m and 14s. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at The Island in the next 16 days are 2.1m 15s and forecast to arrive on Tuesday (Sep 15) at 12PM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.0m 5s period and expected on Tuesday (Sep 15) at 9PM.
| Wave Type | Time (ACST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 12PM (Fri 11th Sep) | 4.5ft (1.4m) 15s |
| Best Surf | 9PM (Fri 11th Sep) | 4.5ft (1.4m) 16s |
| Most Powerful | 12PM (Tue 15th Sep) | 7ft (2.1m) 15s |
Table - best surf conditions forecast for The Island over the next 16 days.
The Lowdown
Alright, crew, Rusty here again, but this time in the old school numbers. Let's talk about The Island. This is a solid reef break that loves a good southwest swell. Water temp is right on the seasonal mark, about 60°, so pretty standard.
We start with a window on Friday the 11th. The morning has a moderate breeze, waves around 4ft from the SW. Not bad, but Friday afternoon is where it's at. The wind goes glassy, zero wind, and the swell sits at 5ft with a long 15-second period. The wave energy is moderate at 958. That afternoon is your first real chance for clean, beautiful waves.
Saturday the 12th gets windier and messier, not worth the paddle. Sunday the 13th is a complete wash with strong onshore winds and choppy conditions, despite the energy jumping up.
Monday the 14th morning sees a return to glassy conditions, but the swell is tiny at only 3ft. It's clean, but you'll be waiting for sets.
Now, for the big boys. Tuesday the 15th sees the swell jump to 7ft in the morning and 7ft in the afternoon, with strong energy readings around 1700+. This is powerful groundswell.
The best bet of the first week is Wednesday morning the 16th. We get a 6ft SW swell, a clean offshore breeze, and strong energy at 1364. This is a call for anyone with experience on a reef. The drop-off pattern is solid and the wind is perfect.
Thursday the 17th is smaller, and then we have a quiet, poor spell until things go off again.
The next big pulse is on Sunday the 20th of September. The morning sees a 7ft swell with a light offshore breeze and energy at 1349 (strong). It's going to be big and clean. The afternoon is even bigger, hitting 8ft and a massive energy reading of 3066. That's a very strong, powerful ocean.
Monday the 21st might be the peak of the entire run. We're looking at 8ft swell, a very long 17-second period, and energy at a huge 4090. At that size, The Island is a serious expert-only wave. The morning looks clean, but the wind turns onshore in the afternoon.
Tuesday the 22nd is still big and clean in the morning, then the final bit of the run gets messy. There is a note of a 5ft swell on Friday the 25th with a 19-second period, but the wind is onshore, so it's a miss.
So, my two standouts: Wednesday the 16th of September is your safest bet for a great session with clean 6ft waves. For the crew who want a serious challenge, Monday the 21st of September is the big, raw, powerful swell. The spot is consistent, so the waves will show up.
Rusty.
Short Range ForecastMostly dry. Warm (max 25°C on Sat afternoon, min 13°C on Sun night). Winds increasing (calm on Fri afternoon, fresh winds from the NNE by Sat night). | Days 4-6 Weather SummaryMostly dry. Very mild (max 15°C on Mon afternoon, min 8°C on Tue night). Winds increasing (calm on Mon morning, strong winds from the SE by Tue afternoon). | ||||||||||||||||||||
Friday 11 | Saturday 12 | Sunday 13 | Monday 14 | Tuesday 15 | Wednesday 16 | Thursday 17 | |||||||||||||||
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 15 | SW 15 | SW 16 | SW 15 | SW 16 | SW 15 | SW 16 | SW 16 | SW 15 | SW 11 | SW 14 | SW 16 | SW 15 | SW 14 | SW 14 | SW 15 | SW 15 | SW 15 | SW 14 | SW 14 | SW 14 |
Wave Graph | |||||||||||||||||||||
767 | 930 | 920 | 525 | 701 | 360 | 574 | 906 | 424 | 163 | 390 | 737 | 1684 | 1736 | 1273 | 1344 | 1326 | 1140 | 650 | 499 | 350 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | glassy | cross-off | cross-off | cross | cross-off | cross-on | cross-on | cross-on | glassy | cross-on | cross | cross-off | cross-off | off | off | cross-off | off | cross-off | cross-off | cross-off |
High Tide | 11:33AM0.00m | 1:05PM0.00m | 2:42PM0.00m | 4:38PM0.00m | 6:53PM0.00m | 9:04PM0.00m | 10:53PM0.00m | ||||||||||||||
Low Tide | 00:19AM-0.00m | 1:52AM-0.00m | 3:38AM-0.00m | 5:44AM-0.00m | 8:00AM-0.00m | 10:01AM-0.00m | |||||||||||||||
6:39 | — | — | 6:37 | — | — | 6:35 | — | — | 6:35 | — | — | 6:33 | — | — | 6:31 | — | — | 6:31 | — | — | |
— | 6:21 | — | — | 6:22 | — | — | 6:22 | — | — | 6:22 | — | — | 6:23 | — | — | 6:24 | — | — | 6:24 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 18 | 20 | 20 | 22 | 25 | 25 | 16 | 14 | 13 | 14 | 15 | 15 | 13 | 13 | 11 | 14 | 15 | 15 | 19 | 22 | 22 |
Feels °C | 14 | 18 | 14 | 15 | 21 | 20 | 13 | 11 | 12 | 12 | 12 | 13 | 7 | 7 | 3 | 11 | 11 | 9 | 14 | 18 | 16 |
Swell 1 Height (m) Direction Period (s) | SW 15 | SW 15 | SW 16 | SW 15 | SW 16 | SW 15 | SW 16 | SW 16 | SW 15 | SW 11 | SW 14 | SW 16 | SW 15 | SW 14 | SW 14 | SW 15 | SW 15 | SW 15 | SW 14 | SW 14 | SW 14 |
767 | 930 | 920 | 525 | 701 | 360 | 574 | 906 | 424 | 163 | 390 | 737 | 1684 | 1736 | 1273 | 1344 | 1326 | 1140 | 650 | 499 | 350 | |
Swell 2 Height (m) Direction Period (s) | SW 24 | SSE 17 | SE 4 | SW 18 | S 18 | SW 18 | WNW 4 | S 16 | WSW 6 | SW 14 | SW 18 | S 17 | S 16 | — | — | S 16 | — | SSE 17 | SSE 16 | S 14 | SSE 3 |
22 | 28 | 5 | 318 | 6 | 258 | 12 | 5 | 23 | 158 | 154 | 6 | 20 | — | — | 20 | — | 29 | 24 | 4 | 1 | |
Swell 3 Height (m) Direction Period (s) | — | — | S 17 | — | — | S 18 | — | — | — | SW 19 | — | — | — | — | — | — | — | — | — | — | — |
— | — | 23 | — | — | 6 | — | — | — | 125 | — | — | — | — | — | — | — | — | — | — | — | |
Wind waves Height (m) Direction Period (s) | NE 3 | — | — | NNE 4 | NNW 3 | N 4 | W 4 | SW 16 | — | — | — | — | ESE 4 | SE 4 | SE 5 | ESE 4 | SSE 16 | ESE 4 | — | — | ENE 2 |
4 | — | — | 11 | 4 | 19 | 7 | 636 | — | — | — | — | 10 | 14 | 33 | 11 | 24 | 21 | — | — | 1 | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 51 | 0 | 13 | 24 | 24 | 249 | 346 | 815 | 154 | 0 | 479 | 29 | 337 | 337 | 89 | 0 | 154 | 0 | 349 | 0 | 349 |
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)
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.










