Surf Forecasts:
The Island surf forecast from 24 Aug 2026:
- Best quality surf: Thursday 27 Aug, 6PM (local time) - 5.5ft (1.7m), 18s period, SW swell with cross-offshore winds.
- Most powerful swell: Monday 31 Aug, 12AM (local time) - 6ft (1.9m), 18s period, SW swell with 2,397 kJ wave energy.
- Next surfable swell (1★+): Wednesday 26 Aug, 12AM (local time) - 5ft (1.5m), 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 Wednesday (Aug 26) at 12AM. The primary swell is predicted to be 1.5m and 14s period with a secondary swell of 0.1m and 14s. The wind is predicted to be glassy as the swell arrives.
The most powerful waves expected at The Island in the next 16 days are 1.9m 18s and forecast to arrive on Monday (Aug 31) at 12AM. Winds are predicted to be offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.6m 4s period and expected on Friday (Aug 28) at 9AM.
| Wave Type | Time (ACST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 12AM (Wed 26th Aug) | 5ft (1.5m) 14s |
| Best Surf | 6PM (Thu 27th Aug) | 5.5ft (1.7m) 18s |
| Most Powerful | 12AM (Mon 31st Aug) | 6ft (1.9m) 18s |
Table - best surf conditions forecast for The Island over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let's have a look at what The Island is serving up over the next couple of weeks.
It’s a bit of a slow burner this time. The first few days don't look like they're offering much to get excited about, just some messy, lumpy conditions. The real window starts to open up towards the end of August and into the start of September.
The main story is a solid, long-period groundswell from the southwest, with a lot of energy behind it. The Island is an exposed reef break that handles this direction well. It’s a consistent, advanced wave, and given the quality of the swell, it’s going to be a proper challenge even for the good surfers.
We kick off on Tuesday the 25th with a fresh cross-shore breeze and a sizeable 7ft SW swell, but it's just too chopped up. The water temp is about average for the time of year, nothing unusual. Not one for the photo album.
The first faint glimmer shows up on Wednesday the 27th of August, with a clean morning and a cross-off shore breeze, but the swell is small at 4ft. The real standout is shaping up for Monday the 31st of August. We’re looking at a solid 6ft SW swell with a long 17 second period and a gentle cross-shore breeze. The combined swell energy is strong (2171). That’s going to push through the lineup with serious power. Expect long, walling lines, but the sets will be few and far between. This is an expert-only wave at that size, and with an exposed reef, you need to know what you're doing. The wave is also known to get crowded sometimes, so be prepared to share the peak.
On Tuesday the 1st of September, the wind swings offshore from the ESE, cleaning up a 4ft SW swell. The period is still a solid 15 seconds, and the energy is moderate (820). This will offer a more manageable but still high-quality wave, perfect for the advanced surfer looking for clean, peeling lines. This is likely your best bet if the Monday swell is too heavy.
Conditions hold into Wednesday the 2nd of September with a clean, gentle offshore breeze from the East and a 4ft SW groundswell. Sweet, lined-up surf with moderate energy (685). That’s a beautiful morning session right there.
Further out, around Saturday the 6th of September, the swell builds back up to 8ft, but the onshore wind is a major downer. Then on Monday the 8th, we see the biggest pulse of the window at 8ft from the SW with a 16-17 second period. The combined swell energy gets up to very strong (3536). That is massive, raw power. But honestly, with the cross-shore wind and chop, it'll be a dangerous, messy beast. Only for the absolute experts, and even then, it might be more of a survival mission than a joy ride. The season’s first real winter swell is coming, but the timing on the wind is off.
So, if you're looking for the pick of the run, my focus is on the clean, offshore days. I’d say Tuesday morning the 1st of September and Wednesday morning the 2nd of September are the standouts. The swell is a solid size, the period is long for real quality, and the offshore winds will have those waves standing up tall and clean. Get on it.
Rusty.
Short Range ForecastMostly dry. Warm (max 22°C on Thu afternoon, min 10°C on Wed morning). Winds decreasing (strong winds from the SSW on Mon night, calm by Wed afternoon). | Days 5-7 Weather SummaryMostly dry. Warm (max 22°C on Thu night, min 17°C on Fri morning). Wind will be generally light. | ||||||||||||||||||
Tuesday 25 | Wednesday 26 | Thursday 27 | Friday 28 | Saturday 29 | Sunday 30 | ||||||||||||||
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 16 | SW 14 | SW 14 | SW 13 | SW 13 | SW 14 | SW 14 | SW 19 | SW 18 | SW 16 | SW 16 | SW 14 | SW 14 | SW 13 | SW 13 | SW 19 | SW 19 | SW 18 |
Wave Graph | |||||||||||||||||||
1144 | 2009 | 1273 | 813 | 552 | 363 | 350 | 459 | 940 | 2264 | 1474 | 1101 | 614 | 447 | 295 | 196 | 303 | 1159 | 2397 | |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross | cross | glassy | cross-off | cross-on | cross-off | cross-off | cross | cross-off | cross-off | cross | off | cross-off | cross-off | off | cross-off | on | off |
High Tide | 10:24AM0.00m | 12:18PM0.00m | 1:57PM0.00m | 3:31PM0.00m | |||||||||||||||
Low Tide | 7:08PM-0.00m | 9:19PM-0.00m | 1:09AM-0.00m | 2:44AM-0.00m | |||||||||||||||
— | 7:00 | — | — | 6:58 | — | — | 6:58 | — | — | 6:56 | — | — | 6:54 | — | — | 6:54 | — | — | |
6:09 | — | 6:09 | — | — | 6:10 | — | — | 6:12 | — | — | 6:12 | — | — | 6:13 | — | — | 6:14 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 14 | 13 | 13 | 13 | 13 | 16 | 17 | 18 | 22 | 22 | 18 | 21 | 20 | 20 | 20 | 19 | 19 | 19 | 18 |
Feels °C | 7 | 7 | 9 | 11 | 9 | 15 | 13 | 11 | 18 | 16 | 13 | 17 | 16 | 15 | 16 | 14 | 15 | 15 | 14 |
Swell 1 Height (m) Direction Period (s) | — | — | SW 14 | SW 14 | SW 13 | SW 13 | SW 14 | SW 14 | SW 19 | SW 18 | SW 16 | SW 16 | SW 14 | SW 14 | SW 13 | SW 13 | SW 12 | SW 19 | SW 18 |
— | — | 1273 | 813 | 552 | 363 | 350 | 459 | 940 | 2264 | 1474 | 1101 | 614 | 447 | 295 | 196 | 141 | 1159 | 2397 | |
Swell 2 Height (m) Direction Period (s) | — | — | S 14 | S 14 | S 13 | SW 16 | SW 23 | SW 20 | WSW 14 | — | S 17 | S 16 | SE 4 | SW 23 | SW 23 | SW 21 | SW 19 | SW 12 | SSE 19 |
— | — | 4 | 4 | 4 | 42 | 21 | 264 | 538 | — | 6 | 5 | 4 | 21 | 21 | 160 | 303 | 193 | 35 | |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | S 16 | S 16 | S 15 | — | — | — | — | S 16 | S 14 | SW 20 | — | S 20 | — | — |
— | — | — | — | — | 5 | 5 | 4 | — | — | — | — | 5 | 4 | 15 | — | 7 | — | — | |
Wind waves Height (m) Direction Period (s) | SW 13 | SW 16 | — | — | — | NNW 3 | NE 3 | N 4 | — | — | N 4 | — | — | — | — | — | NE 3 | — | — |
1144 | 2009 | — | — | — | 2 | 2 | 27 | — | — | 11 | — | — | — | — | — | 3 | — | — | |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 479 | 878 | 398 | 0 | 24 | 24 | 13 | 249 | 24 | 133 | 24 | 5 | 0 | 13 | 0 | 0 | 0 | 133 | 0 |
Best forecast wave conditions in Eyre Peninsula | |||||||||||||||||||
Best forecast wave conditions in Australia | |||||||||||||||||||
Header Global | |||||||||||||||||||
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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.











