Surf Forecasts:
The Island surf forecast from 25 Jul 2026:
- Best quality surf: Wednesday 29 Jul, 9PM (local time) - 6ft (1.8m), 14s period, SW swell with cross-offshore winds.
- Most powerful swell: Wednesday 29 Jul, 3AM (local time) - 11ft (3.5m), 16s period, SW swell with 6,522 kJ wave energy.
- Next surfable swell (1★+): Sunday 26 Jul, 6AM (local time) - 3.5ft (1.1m), 12s 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 (Jul 26) at 6AM. The primary swell is predicted to be 1.1m and 12s period with a secondary swell of 0.2m and 16s. 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 3.5m 16s and forecast to arrive on Wednesday (Jul 29) at 3AM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.5m 3s period and expected on Friday (Jul 31) at 9AM.
| Wave Type | Time (ACST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 6AM (Sun 26th Jul) | 3.5ft (1.1m) 12s |
| Best Surf | 9PM (Wed 29th Jul) | 6ft (1.8m) 14s |
| Most Powerful | 3AM (Wed 29th Jul) | 11ft (3.5m) 16s |
Table - best surf conditions forecast for The Island over the next 16 days.
The Lowdown
Alright, let’s get into it. It’s Rusty here.
First up, a bit of a slow start. The Island isn’t really showing us much until mid-week, and even then, it’s a waiting game. The first few days are a write-off for decent waves, with choppy winds and poor conditions. We’ve got a bit of a gap there from now until around Wednesday, so don’t rush out just yet.
Things start to look a little more interesting on the 29th of July. A solid 8ft SW swell rolls in with a long 16-second period, putting a lot of energy into the water (2818). The wind is clean and cross-off, so The Island reef should be holding some nice lines. This is a bit of a standout for the first week, but make no mistake – at 8ft, this is for the advanced crew. The water is about 60°, which is pretty normal for this time of year, maybe a touch on the cool side.
Just to keep an eye on the wind through the week, the 30th of July has a smaller 5ft SW swell with a clean cross-off breeze again, making for a solid morning session. But the real treat, the one that’s worth circling on the calendar, is the 5th of August. Wednesday morning, we’ve got a 6ft SW groundswell, and get this – a 20-second period. That’s some serious deep-water energy rolling in, with a combined energy of 2342. Conditions are clean with a gentle offshore breeze. This is prime for The Island, a reef break that will handle that long-period swell beautifully. It’s a bit of a long-range call, so keep an eye on the updates, but it’s looking like the best of the whole window.
The 9th of August also has a nice little window, with a 4ft SW swell and glassy, offshore winds. That’s a morning for the loggers or a fun mid-length board, and not too crowded.
The Island can get a bit busy sometimes, and with the good windows, expect a few heads out. But the reef handles the crowd better than a beach break. For the bigger days, especially the 8ft+ days around the 3rd of August, that’s expert territory only. The shorter period (8-11 seconds) on some days means less grunt, but the long-period stuff is quality.
Rusty out.
Short Range ForecastLight rain (total 2mm), mostly falling on Sat night. Very mild (max 15°C on Mon morning, min 12°C on Tue afternoon). Winds increasing (calm on Sat night, strong winds from the NW by Mon morning). | Days 5-7 Weather SummaryMostly dry. Very mild (max 15°C on Fri afternoon, min 11°C on Tue night). Winds decreasing (fresh winds from the SSW on Tue night, calm by Fri afternoon). | ||||||||||||||||||
Sunday 26 | Monday 27 | Tuesday 28 | Wednesday 29 | Thursday 30 | Friday 31 | ||||||||||||||
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 12 | SW 12 | SW 12 | SW 12 | SW 14 | W 8 | WSW 12 | SW 15 | SW 14 | SW 15 | SW 16 | SW 14 | SW 13 | SW 13 | SW 13 | SW 13 | SW 13 | SW 14 | SW 18 |
Wave Graph  | |||||||||||||||||||
 kJ | 416 | 298 | 396 | 303 | 149 | 295 | 816 | 1446 | 1624 | 2741 | 2963 | 1983 | 1102 | 744 | 609 | 431 | 335 | 322 | 442 |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross | on | cross-off | cross | cross-on | on | cross-on | cross-on | cross | cross | cross | cross-off | off | cross | off | cross-off | cross | cross-off |
High Tide | 3:48AM0.00m | 5:13AM0.00m | 6:44AM0.00m | 8:34AM0.00m | 10:46AM0.00m | 12:55PM0.00m | |||||||||||||
Low Tide | 4:31PM-0.00m | 5:56PM-0.00m | 7:36PM-0.00m | 9:38PM-0.00m | 11:52PM-0.00m | 1:52AM-0.00m | |||||||||||||
 |  | |  |  | | |  | |  | | | | | | | | |  | |
 | — | 7:28 | — | — | 7:28 | — | — | 7:26 | — | — | 7:26 | — | — | 7:26 | — | — | 7:24 | — | — |
 | — | — | 5:50 | — | — | 5:51 | — | — | 5:52 | — | — | 5:52 | — | — | 5:52 | — | — | 5:53 | — |
mm | 1 | — | — | — | — | — | 1 | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 14 | 14 | 14 | 14 | 15 | 15 | 15 | 14 | 13 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 13 | 15 | 14 |
Feels °C | 11 | 11 | 10 | 11 | 5 | 7 | 11 | 6 | 6 | 6 | 8 | 8 | 8 | 9 | 9 | 8 | 7 | 13 | 9 |
Swell 1 Height (m) Direction Period (s) | SW 12 | SW 12 | SW 12 | SW 12 | SW 14 | SW 14 | S 14 | — | S 16 | — | SW 16 | SW 14 | SW 13 | SW 13 | SW 13 | SW 13 | SW 13 | SW 14 | SW 18 |
| kJ | 416 | 298 | 396 | 303 | 149 | 149 | 4 | — | 5 | — | 2963 | 1983 | 1102 | 744 | 609 | 431 | 335 | 322 | 442 |
Swell 2 Height (m) Direction Period (s) | SW 16 | S 11 | SW 15 | SW 15 | SW 10 | SW 11 | — | — | — | — | SSE 16 | SSE 15 | SSE 14 | S 13 | SW 24 | SW 23 | SW 21 | SW 20 | SW 13 |
| kJ | 10 | 3 | 107 | 145 | 50 | 43 | — | — | — | — | 25 | 21 | 19 | 4 | 22 | 20 | 71 | 306 | 166 |
Swell 3 Height (m) Direction Period (s) | SW 16 | — | S 11 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | S 20 | S 18 |
| kJ | 10 | — | 3 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 7 | 6 |
Wind waves Height (m) Direction Period (s) | — | — | — | N 3 | NW 5 | W 8 | WSW 12 | SW 15 | SW 14 | SW 15 | — | — | — | — | — | E 3 | NNE 3 | — | N 3 |
| kJ | — | — | — | 2 | 113 | 295 | 816 | 1446 | 1624 | 2741 | — | — | — | — | — | 1 | 6 | — | 5 |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 897 | 154 | 5 | 250 | 24 | 496 | 995 | 356 | 1073 | 1367 | 1026 | 398 | 398 | 29 | 0 | 13 | 0 | 51 | 24 |
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.
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