
Surf Forecasts:
The Island surf forecast from 25 Jul 2026:
- Best quality surf: Wednesday 29 Jul, 6PM (local time) - 6ft (1.8m), 14s period, SW swell with cross-offshore winds.
- Most powerful swell: Wednesday 29 Jul, 6AM (local time) - 7ft (2.2m), 16s period, SW swell with 2,314 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 2.2m 16s and forecast to arrive on Wednesday (Jul 29) at 6AM. Winds are predicted to be cross-offshore 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 3AM.
| Wave Type | Time (ACST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 6AM (Sun 26th Jul) | 3.5ft (1.1m) 12s |
| Best Surf | 6PM (Wed 29th Jul) | 6ft (1.8m) 14s |
| Most Powerful | 6AM (Wed 29th Jul) | 7ft (2.2m) 16s |
Table - best surf conditions forecast for The Island over the next 16 days.
The Lowdown
Alright, Rusty here. Let’s have a proper look at what the next couple of weeks are serving up. We’re focusing on one spot: The Island. It’s a consistent, exposed reef break that loves a good SW groundswell, and it’s set to be the main event for the whole stretch.
First up, water temps are sitting right on the mark for this time of year at 60°F, so nothing unusual there – a solid, predictable start.
The forecast period begins on Saturday the 25th of July, but honestly, it’s a write-off. The morning has a bit of waist-high swell at 4ft from the SW with a decent 13-second period, but that cross-on wind (10 km/h) just messes it up. The afternoon gets worse: bigger at 5ft but with onshore wind at 20 km/h. Not worth paddling out. Sunday the 26th is similar – a little drop in size and messy conditions. The trend continues through Monday the 27th: on Tuesday the 28th we get another bump in swell (7ft SW, 14 sec), but the wind is cross-shore all day, leaving it lumpy. Nobody’s going to be smiling.
Then we see the first real glimmer. Wednesday morning, July 29th – the swell pushes up to 7ft from the SW with a very long 15-second period. That’s proper groundswell energy, with a combined energy reading of 2160 – solid. And the wind… it goes cross-offshore (SSE, 20 km/h), cleaning it right up. This is where The Island shows its class. The sets will have real punch, though the long period at a reef setup means you need to be on your game. Thursday the 30th morning is also clean, with a light NE offshore at 15 km/h and a still solid 5ft SW swell. The sessions on Wednesday morning and Thursday morning are the standout picks of the first week.
Now, into the second week, things get interesting again. After a drop-off and some messy days, we’re looking at Monday morning, August 3rd. The wind goes offshore from the ENE at 25 km/h, the swell is 4ft from the SW with a 14-second period, and it’s clean. It’s smaller, but it’ll be glassy and fun.
The big one that’s worth circling on your calendar is Friday morning, August 7th. It’s more than a week out, so treat it as promising but not locked in. The swell pumps up to 8ft from the SW, period of 16 seconds (that's very long period), and the combined energy is a massive 2944 – that’s serious power. The wind is a light NNE cross-offshore at 15 km/h. For advanced surfers who know The Island, this is the session of the forecast. It’s going to be big, clean, and powerful. Beginners should sit this one out – that’s expert territory.
After that, it trails off into onshore winds and smaller, weaker swells toward the end of the run. The gap from the 7th to the end has a couple of marginal days, but nothing that beats that Friday morning.
So, to sum it up: Wednesday morning July 29th and Friday morning August 7th are your true standouts. The water’s average temp, the crowds can pop up at The Island sometimes, but the quality on those days will be worth it. Stick to the SW groundswell windows and the offshore winds, and you’ll be laughing.
Rusty.
Short Range ForecastLight rain (total 4mm), mostly falling on Sat night. Very mild (max 15°C on Sun night, min 13°C on Sat morning). Winds increasing (calm on Sat night, strong winds from the NNW by Mon morning). | Days 4-6 Weather SummaryMostly dry. Very mild (max 13°C on Tue morning, min 11°C on Tue night). Winds decreasing (fresh winds from the S on Tue night, light winds from the SSW by Thu afternoon). | ||||||||||||||||||||
Saturday 25 | Sunday 26 | Monday 27 | Tuesday 28 | Wednesday 29 | Thursday 30 | Friday 31 | |||||||||||||||
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 13 | SW 13 | SW 12 | SW 12 | SW 12 | SW 12 | WNW 6 | WSW 12 | WSW 13 | SW 14 | SW 14 | SW 14 | SW 15 | SW 14 | SW 13 | SW 13 | SW 13 | SW 13 | SW 14 | SW 19 | SW 18 |
Wave Graph | |||||||||||||||||||||
488 | 851 | 416 | 338 | 407 | 309 | 148 | 890 | 2148 | 1594 | 1280 | 1505 | 2111 | 1602 | 919 | 744 | 545 | 451 | 355 | 369 | 995 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | on | cross-on | cross | cross-on | cross | cross-on | cross-on | on | cross | cross | cross | cross-off | cross-off | off | cross-off | cross | off | cross-off | cross-on | cross-off |
High Tide | 3:48AM0.00m | 5:13AM0.00m | 6:44AM0.00m | 8:34AM0.00m | 10:46AM0.00m | 12:55PM0.00m | |||||||||||||||
Low Tide | 3:04PM-0.00m | 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 | — | — | 7:28 | — | — | 7:26 | — | — | 7:26 | — | — | 7:26 | — | — | 7:24 | — | — | |
— | 5:50 | — | — | 5:50 | — | — | 5:51 | — | — | 5:52 | — | — | 5:52 | — | — | 5:52 | — | — | 5:53 | — | |
mm | — | — | 1 | — | — | — | — | — | 3 | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 13 | 13 | 14 | 14 | 14 | 15 | 14 | 14 | 15 | 13 | 13 | 12 | 12 | 12 | 12 | 12 | 13 | 12 | 12 | 14 | 14 |
Feels °C | 10 | 9 | 12 | 10 | 12 | 10 | 5 | 7 | 11 | 7 | 7 | 6 | 7 | 7 | 8 | 8 | 10 | 7 | 7 | 12 | 11 |
Swell 1 Height (m) Direction Period (s) | SW 13 | SW 13 | SW 12 | SW 12 | SW 12 | SW 12 | SW 14 | S 14 | WSW 13 | — | SW 14 | SW 14 | SW 15 | SW 14 | SW 13 | SW 13 | SW 13 | SW 13 | SW 14 | SW 14 | SW 18 |
488 | 851 | 416 | 338 | 407 | 309 | 116 | 4 | 2148 | — | 1280 | 1505 | 2111 | 1602 | 919 | 744 | 545 | 451 | 355 | 336 | 995 | |
Swell 2 Height (m) Direction Period (s) | SSE 13 | — | SW 16 | S 11 | SW 15 | SW 15 | WSW 11 | — | — | — | — | SSE 15 | — | SW 19 | SSE 13 | W 26 | SW 24 | SW 22 | SW 21 | SW 19 | S 18 |
16 | — | 10 | 3 | 107 | 145 | 75 | — | — | — | — | 22 | — | 59 | 16 | 13 | 22 | 75 | 154 | 369 | 6 | |
Swell 3 Height (m) Direction Period (s) | — | — | SW 16 | — | S 11 | — | — | — | — | — | — | — | — | — | — | — | — | — | ESE 3 | S 20 | — |
— | — | 10 | — | 3 | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 | 7 | — | |
Wind waves Height (m) Direction Period (s) | — | SW 13 | — | — | NW 3 | NW 4 | WNW 6 | WSW 12 | WSW 13 | SW 14 | S 15 | — | SSE 16 | — | — | — | — | — | N 3 | — | — |
— | 466 | — | — | 6 | 12 | 148 | 890 | 1253 | 1594 | 5 | — | 49 | — | — | — | — | — | 6 | — | — | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 398 | 479 | 154 | 24 | 250 | 24 | 499 | 1017 | 356 | 1092 | 1361 | 337 | 337 | 398 | 0 | 0 | 29 | 0 | 24 | 24 | 0 |
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.










