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 (2.4m), 19s period, SW swell with 4,174 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 2.4m 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 1.2m 6s period and expected on Wednesday (Sep 09) at 9AM.
| 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 (2.4m) 19s |
Table - best surf conditions forecast for The Island over the next 16 days.
The Lowdown
Alright, let's break down the upcoming surf at The Island. This reef break is our only option, and it's wide open to the southwest. We've got some waves coming, but you'll need to play the wind right.
The first window that's worth your time is Tuesday, September 8th, in the morning. We're looking at a solid 6ft of southwest groundswell with a long 17-second period. The energy is strong, and with a light offshore breeze from the east, it'll be clean. This is excellent for experienced surfers. The water temp is about normal for this time of year.
Things go downhill fast after that. Wednesday and Thursday have the swell building to 8ft, but with the wind screaming at 25 mph or more, it'll be choppy and hard to manage. Thursday morning, September 10th, has a cleaner offshore wind, but the waves are still a chunky 6ft and the quality is just marginal due to the fresh breeze.
You're then looking at a big gap from Friday, the 11th, right through Monday, the 14th. The swell drops to under 3ft, and the wind turns onshore or messy. That's a solid 3-4 day lull with nothing good on offer.
A glimmer of hope comes Tuesday morning, September 15th. A clean 3ft swell, a 16-second period, and a moderate offshore wind from the east-southeast make for a very good, clean session.
But the real standout, the one to circle on your calendar, is Wednesday morning, September 16th. The Island will be firing with a 6ft southwest swell and a long 16-second period. The wind will be a light cross-off from the southeast, keeping it clean. The energy is strong, and it's excellent for experienced surfers. This is the best of the whole run.
The next morning, Thursday the 17th, could also be a treat. The swell drops to about 4ft, but the forecast is for glassy conditions. No wind at all. That's a rare chance for perfection.
The second week is mostly a write-off. The wind turns onshore or howling cross-shore from the 18th onwards, blowing out some decent-sized 8ft swell. Monday the 21st and Tuesday the 22nd have some 5ft swell, but the winds are cross-shore and the conditions are only marginal. Nothing to get excited about.
To keep it simple: Tuesday the 8th morning, Tuesday the 15th morning, and without a doubt, Wednesday the 16th morning are your moments. The 16th is the one.
Rusty
Short Range ForecastMostly dry. Warm (max 20°C on Thu afternoon, min 9°C on Wed night). Winds increasing (light winds from the ESE on Tue morning, strong winds from the SE by Wed morning). | Days 5-7 Weather SummaryMostly dry. Warm (max 26°C on Sun afternoon, min 14°C on Fri morning). Winds increasing (light winds from the SSW on Fri afternoon, strong winds from the N by Sat night). | ||||||||||||||||||
Tuesday 8 | Wednesday 9 | Thursday 10 | Friday 11 | Saturday 12 | Sunday 13 | ||||||||||||||
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 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 16 | SW 18 | SW 16 | SW 16 | SW 15 |
Wave Graph  | |||||||||||||||||||
 kJ | 2104 | 1795 | 1611 | 1552 | 4174 | 3753 | 2344 | 1809 | 1513 | 859 | 677 | 753 | 823 | 444 | 636 | 510 | 581 | 553 | 360 |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | off | cross-off | cross-off | cross-off | cross-off | cross-off | off | off | cross-off | off | cross-off | cross | cross-off | cross-off | cross | cross-off | cross | 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 | 7:01PM-0.00m | 9:00PM-0.00m | 10:44PM-0.00m | 00:19AM-0.00m | 1:52AM-0.00m | ||||||||||||||
 |  | |  |  |  |  | | | | | | | | | | | | | |
 | — | 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 | 14 | 13 | 13 | 13 | 14 | 10 | 14 | 20 | 16 | 18 | 19 | 20 | 21 | 24 | 25 | 24 | 26 | 23 |
Feels °C | 8 | 12 | 8 | 7 | 5 | 5 | 2 | 8 | 15 | 9 | 14 | 16 | 15 | 15 | 18 | 19 | 17 | 22 | 22 |
Swell 1 Height (m) Direction Period (s) | 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 16 | SW 18 | SW 16 | SW 16 | SW 15 |
| kJ | 2104 | 1795 | 1611 | 1552 | 4174 | 3753 | 2344 | 1809 | 1513 | 859 | 677 | 753 | 823 | 444 | 636 | 510 | 581 | 553 | 360 |
Swell 2 Height (m) Direction Period (s) | S 19 | S 18 | — | — | — | — | — | SSE 17 | SW 26 | SW 25 | SW 24 | SSE 13 | S 17 | SW 18 | S 18 | SW 14 | S 17 | S 16 | — |
| kJ | 7 | 6 | — | — | — | — | — | 29 | 26 | 25 | 22 | 17 | 23 | 325 | 6 | 158 | 6 | 5 | — |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | SW 25 | SW 24 | — | — | S 19 | — | S 17 | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | 25 | 22 | — | — | 7 | — | 6 | — | — | — |
Wind waves Height (m) Direction Period (s) | S 13 | — | SSE 4 | SSE 5 | SE 6 | SE 5 | SE 5 | E 4 | SSE 16 | ESE 5 | NE 4 | — | — | N 4 | N 4 | N 3 | NNW 4 | NW 4 | W 4 |
| kJ | 752 | — | 11 | 46 | 88 | 85 | 64 | 11 | 24 | 31 | 6 | — | — | 15 | 9 | 6 | 29 | 14 | 11 |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 0 | 0 | 897 | 337 | 1515 | 1660 | 337 | 335 | 5 | 154 | 51 | 13 | 13 | 24 | 249 | 154 | 824 | 346 | 5 |
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.
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