
Surf Forecasts:
The Island surf forecast from 13 Sep 2026:
- Best quality surf: Wednesday 16 Sep, 9AM (local time) - 6ft (1.9m), 15s period, SW swell with offshore winds.
- Most powerful swell: Wednesday 16 Sep, 6PM (local time) - 6.5ft (2.0m), 15s period, SW swell with 1,812 kJ wave energy.
- Next surfable swell (1★+): Wednesday 16 Sep, 9AM (local time) - 6ft (1.9m), 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 Wednesday (Sep 16) at 9AM. The primary swell is predicted to be 1.9m and 15s period with a secondary swell of 0.2m and 16s. 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 2.0m 15s and forecast to arrive on Wednesday (Sep 16) at 6PM. 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 5s period and expected on Tuesday (Sep 15) at 9PM.
| Wave Type | Time (ACST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 9AM (Wed 16th Sep) | 6ft (1.9m) 15s |
| Best Surf | 9AM (Wed 16th Sep) | 6ft (1.9m) 15s |
| Most Powerful | 6PM (Wed 16th Sep) | 6.5ft (2.0m) 15s |
Table - best surf conditions forecast for The Island over the next 16 days.
The Lowdown
Alright, this is Rusty here, looking at what we've got on the cards for The Island. It’s a powerful, exposed reef break that needs the right conditions to really fire. The water’s sitting at 59°, which is bang on average for this time of year—no surprises there.
Right now, don’t even bother paddling out. Sunday the 13th is a total write-off with a strong cross-onshore wind smashing a 4ft WSW swell into a choppy mess. The energy is weak, sitting around (870), and the period is long at 16 seconds, but the wind just ruins it. Monday the 14th is near enough the same story, just smaller and messier.
Tuesday the 15th is a bit of a tease. The swell bumps up to 6-6ft from the SW, and the wind goes cross-offshore, cleaning it up nicely. The energy picks up to a moderate (1196-1273), but the conditions are still only marginal. It’s surfable, but nothing to write home about.
Now, Wednesday the 16th is the first standout. You’re looking at a clean 6ft SW groundswell with a period of 15 seconds. That’s long-period energy with plenty of punch—moderate wave energy (1609). Early morning has moderate offshore wind from the ESE, which will groom this reef beautifully. This is excellent surf for experienced surfers; the size and power make it a bit heavy for beginners. This is where the quality shines.
After that, Thursday and Friday drop off fast. By Saturday the 19th, the swell is tiny at 2-2ft and the wind is a strong, messy cross-shore from the north. The energy is weak (196-264). Not worth a look.
We hit a big dry spell from Saturday afternoon through to Sunday the 20th, with nothing but poor, choppy conditions.
Things start looking promising again on Monday the 21st. The wind goes offshore from the ENE in the morning on a 5ft SW swell, and the energy is moderate (814). But the real gem is Monday afternoon: the wind drops to glassy, with a 6ft SSW swell. The energy climbs (918), and it's clean as a whistle. That's a very good session brewing.
Tuesday the 22nd is another double-header. Morning is okay, but the afternoon is a standout winner. Glassy conditions again, with a 6ft SW groundswell (16-second period) and strong, very good wave energy (1439). Excellent conditions for experienced surfers. This is the other top call of the outlook.
Wednesday the 23rd is back to onshore slop—big swell but choppy and lumpy.
Friday the 25th is another excellent day. A steady 6ft SW groundswell with a long 16-second period, and the wind is offshore from the ENE. The energy is strong (1417). This is clean, powerful, and lined up perfectly for the reef. Crowds are possible at this spot, so get in early.
The final call for the weekend of the 27th-28th: Sunday the 27th has some size, with a 7ft SSW swell—that's expert territory—but the wind is messy. Monday the 28th, however, is a barnstormer. Offshore wind from the east, a solid 6ft SSW groundswell, and excellent conditions for experienced surfers. The energy is strong (1592). A perfect way to wrap up the period.
So, to sum it up: the absolute best windows are going to be Wednesday the 16th, Monday the 21st afternoon, Tuesday the 22nd afternoon, Friday the 25th, and Monday the 28th. The long-period SW groundswells will love this reef, delivering long, powerful walls. Get on it.
Rusty.
Short Range ForecastMostly dry. Very mild (max 15°C on Sun morning, min 8°C on Tue night). Winds increasing (light winds from the SSW on Mon morning, fresh winds from the SSE by Tue afternoon). | Days 4-6 Weather SummaryMostly dry. Warm (max 24°C on Fri afternoon, min 8°C on Wed morning). Winds decreasing (fresh winds from the ESE on Wed night, calm by Fri afternoon). | ||||||||||||||||||||
Sunday 13 | Monday 14 | Tuesday 15 | Wednesday 16 | Thursday 17 | Friday 18 | Saturday 19 | |||||||||||||||
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) | WSW 16 | WSW 16 | SW 15 | SW 14 | SW 14 | SW 16 | SW 14 | SW 14 | SW 14 | SW 15 | SW 15 | SW 15 | SW 14 | SW 14 | SW 13 | SW 17 | SW 15 | SW 14 | SW 13 | SW 17 | SW 15 |
Wave Graph | |||||||||||||||||||||
864 | 832 | 418 | 573 | 390 | 728 | 1196 | 1273 | 1554 | 1589 | 1654 | 1415 | 716 | 464 | 335 | 530 | 335 | 251 | 144 | 142 | 276 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | on | cross-on | cross-on | cross-on | cross | cross-off | cross-off | cross-off | off | cross-off | off | cross-off | cross | cross-off | cross | cross-on | cross-off | cross | cross | on |
High Tide | 2:42PM0.00m | 4:38PM0.00m | 6:53PM0.00m | 9:04PM0.00m | 10:53PM0.00m | 00:26AM0.00m | 1:55AM0.00m | ||||||||||||||
Low Tide | 3:38AM-0.00m | 5:44AM-0.00m | 8:00AM-0.00m | 10:01AM-0.00m | 11:41AM-0.00m | 1:10PM-0.00m | |||||||||||||||
6:35 | — | — | 6:35 | — | — | 6:33 | — | — | 6:31 | — | — | 6:31 | — | — | 6:28 | — | — | 6:28 | — | — | |
— | 6:22 | — | — | 6:22 | — | — | 6:23 | — | — | 6:24 | — | — | 6:24 | — | — | 6:25 | — | — | 6:27 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 15 | 15 | 14 | 14 | 14 | 14 | 12 | 12 | 10 | 12 | 15 | 11 | 15 | 16 | 17 | 20 | 24 | 24 | 24 | 28 | 25 |
Feels °C | 11 | 11 | 11 | 12 | 11 | 12 | 6 | 5 | 2 | 7 | 9 | 4 | 13 | 12 | 12 | 14 | 21 | 19 | 14 | 21 | 16 |
Swell 1 Height (m) Direction Period (s) | S 17 | S 16 | SW 15 | SW 14 | SW 14 | SW 16 | SW 14 | SW 14 | SW 14 | SW 15 | SW 15 | SW 15 | SW 14 | SW 14 | SW 13 | SW 17 | SW 15 | SW 14 | SW 13 | SW 13 | SW 15 |
6 | 5 | 418 | 573 | 390 | 728 | 1196 | 1273 | 1554 | 1589 | 1654 | 1415 | 716 | 464 | 335 | 530 | 335 | 251 | 144 | 87 | 276 | |
Swell 2 Height (m) Direction Period (s) | — | — | WSW 7 | SW 19 | SW 18 | — | — | — | — | S 16 | — | SSE 15 | — | SW 22 | SW 18 | S 11 | NNW 3 | S 16 | — | SW 17 | SW 12 |
— | — | 93 | 125 | 154 | — | — | — | — | 20 | — | 23 | — | 18 | 321 | 3 | 1 | 5 | — | 142 | 52 | |
Swell 3 Height (m) Direction Period (s) | — | — | — | S 14 | — | — | — | — | — | — | — | — | S 14 | SW 22 | S 12 | S 19 | — | — | — | — | — |
— | — | — | 4 | — | — | — | — | — | — | — | — | 16 | 20 | 3 | 7 | — | — | — | — | — | |
Wind waves Height (m) Direction Period (s) | WSW 16 | WSW 16 | WSW 7 | — | — | — | S 5 | SSE 5 | SE 5 | ENE 3 | SSE 4 | ESE 5 | E 4 | — | SE 3 | N 3 | NNW 4 | N 3 | N 5 | NNW 4 | WSW 5 |
864 | 832 | 56 | — | — | — | 37 | 24 | 66 | 4 | 13 | 56 | 12 | — | 3 | 6 | 5 | 7 | 52 | 35 | 34 | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 356 | 724 | 495 | 154 | 479 | 29 | 337 | 337 | 337 | 0 | 337 | 5 | 13 | 154 | 5 | 249 | 24 | 133 | 412 | 278 | 1017 |
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.










