
Surf Forecasts:
The Island surf forecast from 5 Sep 2026:
- Best quality surf: Sunday 6 Sep, 9AM (local time) - 7ft (2.1m), 14s period, SW swell with cross-offshore winds.
- Most powerful swell: Wednesday 9 Sep, 3PM (local time) - 8ft (2.5m), 18s period, SW swell with 3,796 kJ wave energy.
- Next surfable swell (1★+): Sunday 6 Sep, 9AM (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 9AM. The primary swell is predicted to be 2.1m and 14s period with a secondary swell of 1.1m and 16s. 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 2.5m 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 5s period and expected on Wednesday (Sep 09) at 9PM.
| Wave Type | Time (ACST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 9AM (Sun 6th Sep) | 7ft (2.1m) 14s |
| Best Surf | 9AM (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
G'day, Rusty here. We've got a real mixed bag coming up for The Island over the next couple of weeks. It's a solid, exposed reef break that handles a good SW swell, but the wind is going to be the main character in this story. The water is sitting at 60°, which is bang on average for this time of year, so no surprises there.
The real standout is Sunday the 6th of September. That morning, we're looking at a clean 7ft SW swell with a 14-second period. The combined energy is pumping at 2144 (strong). The wind is a light cross-off from the SE, which will keep the face nice and tidy. This is proper advanced-level stuff, so leave the foamies at home. The afternoon drops a touch to 6ft, but still clean and solid.
Monday the 7th eases back a bit. The morning has a 4ft SW swell with a 13-second period and a moderate offshore breeze from the ESE, keeping it clean. The energy is moderate (453). It's a good, smaller option for a session.
Tuesday the 8th is another cracker. The morning brings a 6ft SW swell, but the period jumps to a very long 17 seconds, giving it serious grunt. The energy is strong again at 1801. The wind is a light cross-off from the ESE, so it'll be clean. Just remember, that long period can make a reef break like this a bit more challenging, with longer waits between sets.
Wednesday the 9th is a write-off. The swell is 7ft in the morning, but the wind is screaming from the SE at 25 mph. The energy is massive (3950), but it's going to be a washing machine. Only for the hardcore, and even then, it's a tough ask.
Thursday the 10th looks better. The morning has a 7ft SW swell and a 16-second period, with a fresh offshore from the E at 19 mph. The energy is strong (2170). It'll be clean and powerful, but the wind is stiff.
Friday the 11th is a bit of a sleeper. The afternoon session has a 4ft SW swell, but the wind goes glassy from the E. That's about as good as it gets for conditions. The period is 15 seconds, so it's a proper groundswell. The energy is moderate (704).
From Saturday the 12th through to Monday the 14th, the swell drops and the wind goes junk. It's a quiet spell, with nothing really worth paddling out for.
Tuesday the 15th sees a pulse return. The morning has a 7ft SW swell with a 16-second period and a moderate cross-off from the NNE. The energy is strong (2061). It's a good clean option for experienced surfers.
Wednesday the 16th and Thursday the 17th are okay. Thursday morning is the best of that little run, with a 4ft SW swell, a 16-second period, and a moderate offshore from the ENE. The energy is moderate (902). It'll be clean.
Friday the 18th and Saturday the 19th are back to onshore slop. The wind is howling from the WNW, and the conditions are poor. The energy is high on the 19th (over 3600), but it's all wind and chop.
We get a small window on Sunday the 20th of September. The swell is 8ft from the SW, but the wind is a light cross-on from the SW. The energy is strong (2541), but it's going to be a bit lumpy. Not ideal.
The real long-range promise comes on Monday the 21st of September. The morning has a solid 8ft SW swell with a very long 18-second period, and a clean cross-off from the NNE. The energy is massive at 4549. This is as good as it gets on paper for the whole forecast, but it's a week and a half away, so keep an eye on it. The afternoon holds similar size and energy, with a light cross-shore wind.
So, to sum it up: the best bet is Sunday the 6th of September morning for the best combo of size and clean conditions. For a smaller, glassy session, Friday the 11th of September afternoon is your spot. Keep an eye on Monday the 21st of September, but it's a long way off.
Rusty.
Short Range ForecastMostly dry. Very mild (max 14°C on Sun morning, min 10°C on Sun night). Winds increasing (light winds from the SE on Sun morning, strong winds from the SSE by Tue night). | Days 4-6 Weather SummaryMostly dry. Warm (max 21°C on Fri night, min 8°C on Wed night). Winds decreasing (strong winds from the SE on Wed morning, calm by Fri afternoon). | ||||||||||||||||||||
Sunday 6 | Monday 7 | Tuesday 8 | Wednesday 9 | Thursday 10 | Friday 11 | Saturday 12 | |||||||||||||||
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 14 | SW 14 | SW 13 | SW 13 | SW 13 | SW 18 | SW 17 | SW 16 | SW 16 | SW 17 | SW 18 | SW 16 | SW 16 | SW 16 | SSW 15 | SW 15 | SW 15 | SW 16 | SW 15 | SW 14 | SW 18 |
Wave Graph | |||||||||||||||||||||
1549 | 1238 | 780 | 380 | 525 | 2104 | 1795 | 1611 | 1438 | 2330 | 3796 | 2931 | 2140 | 1654 | 1206 | 757 | 686 | 813 | 492 | 350 | 607 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-off | cross-off | off | cross-off | off | cross-off | cross | cross-off | cross-off | cross-off | off | off | cross-off | off | cross-off | glassy | cross-off | cross-off | cross-on | cross |
High Tide | 4:06AM0.00m | 6:00AM0.00m | 8:01AM0.00m | 9:54AM0.00m | 11:33AM0.00m | 1:05PM0.00m | |||||||||||||||
Low Tide | 3:13PM-0.00m | 5:01PM-0.00m | 7:01PM-0.00m | 9:00PM-0.00m | 10:44PM-0.00m | 00:19AM-0.00m | 1:52AM-0.00m | ||||||||||||||
6:45 | — | — | 6:43 | — | — | 6:43 | — | — | 6:41 | — | — | 6:39 | — | — | 6:39 | — | — | 6:37 | — | — | |
— | 6:17 | — | — | 6:19 | — | — | 6:19 | — | — | 6:20 | — | — | 6:21 | — | — | 6:21 | — | — | 6:22 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 14 | 13 | 13 | 14 | 14 | 13 | 12 | 13 | 13 | 12 | 13 | 11 | 14 | 17 | 14 | 17 | 20 | 21 | 21 | 25 | 25 |
Feels °C | 12 | 9 | 8 | 10 | 8 | 7 | 9 | 9 | 8 | 4 | 5 | 5 | 8 | 11 | 7 | 13 | 15 | 15 | 13 | 20 | 19 |
Swell 1 Height (m) Direction Period (s) | SW 14 | SW 14 | SW 13 | SW 13 | SW 13 | SW 18 | SW 17 | SW 16 | SW 16 | SW 17 | SW 18 | SW 16 | SW 16 | SW 16 | SSW 15 | SW 15 | SW 15 | SW 16 | SW 15 | SW 14 | SW 18 |
1549 | 1238 | 780 | 380 | 525 | 2104 | 1795 | 1611 | 1438 | 2330 | 3796 | 2931 | 2140 | 1654 | 1206 | 757 | 686 | 813 | 492 | 350 | 607 | |
Swell 2 Height (m) Direction Period (s) | SW 16 | S 14 | SW 23 | SW 21 | SW 20 | SW 13 | S 18 | — | — | SW 20 | — | SSE 18 | SSE 18 | SW 26 | SW 25 | WSW 23 | SSE 13 | S 17 | SW 20 | SW 19 | SW 18 |
595 | 4 | 21 | 71 | 264 | 418 | 6 | — | — | 1522 | — | 32 | 30 | 26 | 25 | 53 | 18 | 23 | 61 | 123 | 528 | |
Swell 3 Height (m) Direction Period (s) | — | — | — | S 10 | — | — | — | — | — | — | — | — | — | SW 26 | SW 25 | SW 24 | — | — | S 16 | S 18 | S 17 |
— | — | — | 2 | — | — | — | — | — | — | — | — | — | 26 | 24 | 22 | — | — | 5 | 6 | 6 | |
Wind waves Height (m) Direction Period (s) | — | — | SSE 4 | ESE 4 | SSE 4 | SE 5 | — | S 17 | S 5 | SSE 6 | SSE 5 | E 4 | E 4 | — | ESE 5 | E 4 | — | — | N 4 | NNW 4 | — |
— | — | 16 | 7 | 17 | 53 | — | 6 | 52 | 98 | 71 | 6 | 10 | — | 62 | 7 | — | — | 14 | 4 | — | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 0 | 89 | 133 | 0 | 154 | 0 | 0 | 897 | 337 | 1515 | 1538 | 89 | 89 | 29 | 5 | 13 | 0 | 133 | 352 | 250 | 24 |
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.










