
Surf Forecasts:
The Island surf forecast from 7 Sep 2026:
- Best quality surf: Tuesday 8 Sep, 12AM (local time) - 6ft (1.8m), 18s period, SW swell with offshore winds.
- Most powerful swell: Wednesday 9 Sep, 9AM (local time) - 8ft (2.5m), 19s period, SW swell with 4,462 kJ wave energy.
- Next surfable swell (1★+): Tuesday 8 Sep, 12AM (local time) - 6ft (1.8m), 18s 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 Tuesday (Sep 08) at 12AM. The primary swell is predicted to be 1.8m and 18s period with a secondary swell of 0.1m and 19s. Another secondary swell of 1.5m and 13s is also forecast. 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 2.5m 19s and forecast to arrive on Wednesday (Sep 09) at 9AM. 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 5s period and expected on Thursday (Sep 10) at 12AM.
| Wave Type | Time (ACST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 12AM (Tue 8th Sep) | 6ft (1.8m) 18s |
| Best Surf | 12AM (Tue 8th Sep) | 6ft (1.8m) 18s |
| Most Powerful | 9AM (Wed 9th Sep) | 8ft (2.5m) 19s |
Table - best surf conditions forecast for The Island over the next 16 days.
The Lowdown
Alright, surfers, Rusty here. Let’s have a look at what’s coming our way.
The Island is not messing around for the next couple of weeks. We’ve got a solid run of SW groundswell and mostly clean conditions, but the wind is the real story here. It’s a bit of a slow start, but the quality builds nicely.
Monday September 7th kicks things off with a clean 4ft SW swell at 13 seconds from the ESE. The offshore wind keeps it tidy, but the energy is moderate (453). It’s a decent start, but the real juice is still a day away.
Tuesday September 8th is where it gets interesting. The morning brings a clean 6ft SW groundswell with a very long period of 17 seconds. The wind is light offshore from the ESE, making for some exceptional shape. The combined energy jumps to strong (1801). This is a standout window for experienced surfers – the wave quality is going to be top-notch. The water temp is 60°, which is about average for this time of year.
Wednesday September 9th pushes up to 8ft SW, but the wind switches to a strong cross-offshore from the SE at 28 mph. The energy is very strong (4745), but that wind is going to put a bit of a lump on the face. It’s still surfable and powerful, but it’s not as clean as Tuesday. This is expert territory.
Thursday September 10th is a great call. The swell drops slightly to 6ft, but the wind is a clean offshore from the E at 19 mph. The energy is still strong (1838), and the period is a solid 16 seconds. This is another clean, punchy day for the experienced crew.
There’s a bit of a lull from Friday September 11th through Sunday September 14th. The swell drops back to 3ft to 4ft, and the wind goes all over the place – cross-shore, onshore, and even a strong onshore on Sunday the 13th. The wave energy drops to moderate (around 500-700). Not your best days, but Friday afternoon the 11th has a light breeze and a clean 4ft swell that might be worth a cheeky session.
Tuesday September 15th and Wednesday September 16th are the absolute standouts of the whole run. Tuesday morning delivers a clean 5ft SW swell at 15 seconds with a moderate offshore wind from the E. The energy is strong (1039). Wednesday morning is even better: a clean 6ft SW swell at 14 seconds with a light offshore wind from the E. The energy is strong (1153). Both mornings are going to be glassy, clean, and powerful. This is the best on offer.
The end of the run gets messy again. Thursday September 17th and Friday September 18th are blown out with strong cross-onshore winds and poor surf. Avoid those.
Saturday September 19th throws a massive 8ft SW groundswell at us with a very long period of 17 seconds. The wind is light cross-offshore from the NNE. The energy is very strong (3997). This is a big, powerful, clean day for experts only. The afternoon is even cleaner with a gentle breeze and a 5/10 score – that’s the best raw score of the whole forecast. That long-period swell will be aiming to break straight at the beach, so The Island, being a reef break, will handle it beautifully.
The final few days, Sunday September 20th through Tuesday September 22nd, are a mess. Strong onshore winds and rain, then a massive 7ft SW swell with a 22-second period on Monday the 21st, but it’s got a lumpy cross-chop. The energy is extreme (6405), but the conditions are poor. Not worth it.
Overall, the best windows are Tuesday morning September 8th, Thursday morning September 10th, and the absolute standouts: Tuesday morning September 15th and Wednesday morning September 16th. The big swell on Saturday September 19th is also a special one for the experts. Keep an eye on that.
Stay stoked.
Rusty.
Short Range ForecastMostly dry. Very mild (max 15°C on Mon afternoon, min 8°C on Wed night). Winds increasing (light winds from the ESE on Tue morning, strong winds from the SE by Wed morning). | Days 4-6 Weather SummaryMostly dry. Warm (max 24°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). | ||||||||||||||||||||
Monday 7 | Tuesday 8 | Wednesday 9 | Thursday 10 | Friday 11 | Saturday 12 | Sunday 13 | |||||||||||||||
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 13 | SW 13 | SW 18 | SW 17 | SW 16 | SW 16 | SW 19 | SW 18 | SW 16 | SW 16 | SW 16 | SW 15 | SW 15 | SW 15 | SW 16 | SW 15 | SW 15 | SW 18 | SW 16 | WSW 16 | SW 15 |
Wave Graph | |||||||||||||||||||||
380 | 525 | 2104 | 1795 | 1492 | 1552 | 4462 | 3753 | 3105 | 1809 | 1513 | 859 | 677 | 753 | 823 | 512 | 370 | 679 | 581 | 715 | 370 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | off | cross-off | off | off | cross-off | cross-off | cross-off | cross-off | off | off | cross-off | off | cross-off | cross-off | cross-off | cross-off | cross | cross-off | cross | on | cross |
High Tide | 6:00AM0.00m | 8:01AM0.00m | 9:54AM0.00m | 11:33AM0.00m | 1:05PM0.00m | 2:42PM0.00m | |||||||||||||||
Low Tide | 5:01PM-0.00m | 7:01PM-0.00m | 9:00PM-0.00m | 10:44PM-0.00m | 00:19AM-0.00m | 1:52AM-0.00m | |||||||||||||||
6:43 | — | — | 6:43 | — | — | 6:41 | — | — | 6:39 | — | — | 6:39 | — | — | 6:37 | — | — | 6:35 | — | — | |
— | 6:19 | — | — | 6:19 | — | — | 6:20 | — | — | 6:21 | — | — | 6:21 | — | — | 6:22 | — | — | 6:22 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 14 | 15 | 13 | 13 | 13 | 13 | 12 | 14 | 11 | 14 | 19 | 15 | 17 | 18 | 20 | 21 | 24 | 24 | 24 | 21 | 17 |
Feels °C | 10 | 9 | 6 | 10 | 7 | 6 | 4 | 6 | 4 | 8 | 13 | 7 | 14 | 15 | 15 | 16 | 20 | 18 | 16 | 16 | 15 |
Swell 1 Height (m) Direction Period (s) | SW 13 | SW 13 | SW 18 | SW 17 | SW 16 | SW 16 | SW 19 | SW 18 | SW 16 | SW 16 | SW 16 | SW 15 | SW 15 | SW 15 | SW 16 | SW 15 | SW 15 | SW 18 | SW 16 | N 4 | SW 15 |
380 | 525 | 2104 | 1795 | 1492 | 1552 | 4462 | 3753 | 3105 | 1809 | 1513 | 859 | 677 | 753 | 823 | 512 | 370 | 679 | 581 | 5 | 370 | |
Swell 2 Height (m) Direction Period (s) | SW 21 | SW 20 | S 19 | S 18 | — | — | SSW 8 | — | — | SSE 17 | SW 26 | SW 25 | SW 24 | — | — | SW 20 | SW 18 | WSW 14 | — | N 4 | W 4 |
71 | 264 | 7 | 6 | — | — | 41 | — | — | 29 | 26 | 25 | 22 | — | — | 137 | 208 | 394 | — | 6 | 6 | |
Swell 3 Height (m) Direction Period (s) | S 10 | — | — | — | — | — | — | — | — | — | — | SW 25 | SW 24 | — | — | S 19 | S 18 | — | S 17 | S 16 | S 16 |
2 | — | — | — | — | — | — | — | — | — | — | 25 | 22 | — | — | 7 | 6 | — | 6 | 5 | 5 | |
Wind waves Height (m) Direction Period (s) | ESE 4 | SSE 4 | S 13 | — | S 4 | S 5 | SSE 6 | SSE 5 | ESE 5 | E 4 | SSE 16 | ESE 5 | NE 3 | — | ESE 3 | N 4 | NNW 4 | N 3 | NNW 5 | WSW 16 | — |
11 | 12 | 752 | — | 16 | 55 | 242 | 75 | 90 | 10 | 24 | 27 | 3 | — | 4 | 9 | 5 | 5 | 54 | 715 | — | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 0 | 154 | 0 | 0 | 897 | 1497 | 1503 | 1660 | 337 | 335 | 29 | 51 | 13 | 0 | 5 | 24 | 24 | 24 | 496 | 346 | 154 |
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.










