
Surf Forecasts:
The Island surf forecast from 10 Sep 2026:
- Best quality surf: Thursday 10 Sep, 3PM (local time) - 6ft (1.8m), 16s period, SW swell with offshore winds.
- Most powerful swell: Thursday 10 Sep, 12PM (local time) - 6ft (1.8m), 16s period, SW swell with 1,664 kJ wave energy.
- Next surfable swell (1★+): Thursday 10 Sep, 3PM (local time) - 6ft (1.8m), 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 (Sep 10) at 3PM. The primary swell is predicted to be 1.8m and 16s period with a secondary swell of 0.1m and 26s. 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 1.8m 16s and forecast to arrive on Thursday (Sep 10) at 12PM. Winds are predicted to be 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+) | 3PM (Thu 10th Sep) | 6ft (1.8m) 16s |
| Best Surf | 3PM (Thu 10th Sep) | 6ft (1.8m) 16s |
| Most Powerful | 12PM (Thu 10th Sep) | 6ft (1.8m) 16s |
Table - best surf conditions forecast for The Island over the next 16 days.
The Lowdown
Alright, let's talk The Island. It's the only break on the cards, and it's a proper reef, so when it's on, it's on. The water's sitting right at the seasonal norm at 60°, so nothing weird there. Got a long window here, with some flat spells and a big one brewing at the end.
Don't bother paddling out Thursday morning. There's 6ft on offer, but the wind's a bit fresh, even if it is offshore. Wait for Thursday afternoon. Same 6ft, but that wind eases to a moderate offshore, the energy is pumping at 1703, and it's going to be clean and lined up. This is your first good session for the experienced crew. A genuine standout.
Friday's a letdown. The swell drops to just over 4ft, the energy is weak, and the winds are cross-offshore but not helping. Saturday’s not much better, small and crossed up. Sunday is a complete write-off with cross-onshore winds chopping up the 4-5ft of swell. Forget it.
Monday and Tuesday are poor. Small waves, weak energy, and onshore winds. But Tuesday afternoon is where the turn comes. The swell builds back to 6ft, the energy is climbing, and it's starting to clean up. Wednesday morning is another standout. 6ft of SW swell, a gentle offshore wind, and clean conditions. Get out there early.
The rest of that week is small and messy. Saturday morning is tiny, but Saturday afternoon is a sneaky one. The wind goes glassy, the swell is only 4ft but from the west, and the period is a long 16 seconds. The energy is over 1100, so it'll have some push. That's a fun one.
Now the big one. Starting Sunday the 20th, the energy starts to build. It's lumpy and crossed-up at first, but then Monday the 21st through Wednesday the 23rd, it's game on. The swell is consistently in the 7-8ft range, and Wednesday afternoon it jumps to a solid 10ft. The wind stays cross-offshore and clean, and the energy reading hits a massive 6185. This is a serious, groundswell-powered, heavy day on the reef. Advanced and expert surfers only. It's a long way off, so keep an eye on it, but this is the one to plan for.
After that, it fades. Thursday the 24th is 6ft and glassy in the afternoon, and Friday shows a 7ft pulse with a very long 19-second period, but the cross winds will mess it up. So, you've got two clear days to circle: Thursday arvo at the start, and that heavy Wednesday a week and a half later. The rest is a waiting game.
Rusty out.
Short Range ForecastMostly dry. Warm (max 25°C on Sat afternoon, min 9°C on Thu morning). Winds increasing (light winds from the NE on Fri morning, fresh winds from the N by Sat night). | Days 4-6 Weather SummaryMostly dry. Very mild (max 19°C on Sun morning, min 12°C on Mon night). Winds increasing (light winds from the SW on Sun night, fresh winds from the ESE by Tue night). | ||||||||||||||||||||
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 11 | SW 13 | SW 15 | SW 14 | SW 14 | SW 15 | SW 15 | SW 15 |
Wave Graph | |||||||||||||||||||||
1675 | 1513 | 1074 | 767 | 930 | 920 | 525 | 701 | 360 | 574 | 906 | 318 | 440 | 187 | 299 | 1308 | 1484 | 1363 | 1381 | 1456 | 936 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | off | off | off | cross-off | cross-off | cross-off | cross-off | cross | cross-off | cross-on | cross-on | cross-on | cross-on | cross-on | 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 | 18 | 16 | 18 | 19 | 20 | 22 | 25 | 25 | 19 | 15 | 14 | 15 | 15 | 15 | 14 | 15 | 13 | 17 | 18 | 19 |
Feels °C | 7 | 13 | 10 | 15 | 16 | 15 | 16 | 21 | 20 | 15 | 12 | 12 | 13 | 13 | 13 | 10 | 9 | 6 | 16 | 14 | 14 |
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 11 | SW 13 | SW 15 | SW 14 | SW 14 | SW 15 | SW 15 | SW 15 |
1675 | 1513 | 1074 | 767 | 930 | 920 | 525 | 701 | 360 | 574 | 906 | 318 | 440 | 187 | 299 | 1308 | 1484 | 1363 | 1381 | 1456 | 936 | |
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 | NW 4 | — | S 16 | SW 19 | SW 14 | SW 16 | S 5 | — | SSE 5 | S 17 | SSE 17 | S 15 |
28 | 26 | 25 | 22 | 28 | 23 | 318 | 6 | 258 | 14 | — | 5 | 125 | 160 | 211 | 4 | — | 7 | 23 | 28 | 17 | |
Swell 3 Height (m) Direction Period (s) | — | SW 26 | SW 25 | — | — | — | — | — | S 18 | — | — | — | — | SW 18 | S 17 | — | — | S 15 | — | — | — |
— | 26 | 24 | — | — | — | — | — | 6 | — | — | — | — | 154 | 6 | — | — | 4 | — | — | — | |
Wind waves Height (m) Direction Period (s) | E 4 | ESE 4 | ESE 5 | E 4 | — | SE 4 | NNE 4 | — | N 4 | — | SW 16 | WSW 4 | — | — | — | SE 4 | S 15 | E 4 | — | — | — |
16 | 12 | 52 | 17 | — | 5 | 11 | — | 18 | — | 573 | 13 | — | — | — | 8 | 19 | 11 | — | — | — | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 337 | 0 | 51 | 13 | 0 | 0 | 24 | 13 | 249 | 496 | 495 | 479 | 154 | 479 | 29 | 29 | 337 | 0 | 0 | 89 | 0 |
Best forecast wave conditions in Eyre Peninsula | |||||||||||||||||||||
Best forecast wave conditions in Australia | |||||||||||||||||||||
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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.










