Surf Forecasts:
The Island surf forecast from 31 Jul 2026:
- Best quality surf: Monday 3 Aug, 6PM (local time) - 5ft (1.6m), 13s period, SW swell with cross-offshore winds.
- Most powerful swell: Sunday 2 Aug, 9PM (local time) - 7ft (2.2m), 16s period, SW swell with 2,314 kJ wave energy.
- Next surfable swell (1★+): Friday 31 Jul, 9PM (local time) - 2ft (0.6m), 18s 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 Friday (Jul 31) at 9PM. The primary swell is predicted to be 0.8m and 13s period with a secondary swell of 0.6m and 18s. 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 2.2m 16s and forecast to arrive on Sunday (Aug 02) at 9PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.8m 4s period and expected on Wednesday (Aug 05) at 6AM.
| Wave Type | Time (ACST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 9PM (Fri 31st Jul) | 2ft (0.6m) 18s |
| Best Surf | 6PM (Mon 3rd Aug) | 5ft (1.6m) 13s |
| Most Powerful | 9PM (Sun 2nd Aug) | 7ft (2.2m) 16s |
Table - best surf conditions forecast for The Island over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let’s break down what’s looking like for The Island. It’s a bit of a mixed bag, but we’ve got a couple of windows that’ll get your heart pumping.
We’re starting off with a bit of a wait. The first few days are pretty rough. From Friday the 31st of July all the way through the weekend, the wind is a mess. The Island is copping a lot of cross or cross-onshore breeze, and the conditions are just choppy and lumpy. The swell is there, but it’s not worth paddling out for. There’s a bit of a cross-off chance on the Tuesday morning (4th of August) with a clean 4ft, but the energy is only moderate (615) and the period is short, so it’s not a standout.
The first real glimmer of hope comes on Wednesday the 5th of August, in the afternoon. The wind swings to a cross-off from the NNE at 15 mph, cleaning up the 4ft, 18-second SW groundswell. The energy is solid (1021), and that long period means the waves will have some real shape and power. The Island is a reef break, so it’ll handle that long period nicely. It’s a good one, but keep in mind this spot is for advanced surfers only.
The absolute best of the bunch, though, is Thursday morning, the 6th of August. The wind is light and cross-off from the NNE at only 6 mph, which is about as good as it gets for clean conditions. The swell is 4ft from the SW, with a 16-second period, and the energy is moderate (936). This is going to be glassy, well-shaped, and a real treat. The water temperature is 59°, which is about normal for this time of year, so a wetsuit is the go.
After that, it gets messy again. The wind starts howling from the 7th and 8th, with a near gale on the 7th afternoon. Then we get a run of really poor conditions from the 9th through the 11th of August. The swell gets massive – up to 10ft on the 10th – but it’s being hammered by strong cross-onshore winds. The energy is huge (over 5000 on the 10th), but it’s a complete washout for a paddle. For a spot like The Island, that kind of size and wind is more for the kite crew than us.
There’s a slight improvement on the 12th of August with a 8ft swell and light winds, but it’s still cross-on and choppy. A couple of sessions on the 14th and 15th of August show some promise with solid 7ft to 10ft SW groundswells, but the wind is never truly clean. The 15th of August has a huge 10ft, 18-second swell (energy 4714), but the cross-on wind will ruin it.
So, to sum it up: the best bet is Thursday morning, 6th of August. That’s your standout. Wednesday afternoon, 5th of August, is your backup. The rest of the two weeks is a battle with the wind, and while the swell is pumping, you’ll be fighting the chop.
Rusty.
Short Range ForecastMostly dry. Very mild (max 16°C on Sat afternoon, min 11°C on Sat morning). Winds increasing (calm on Fri afternoon, fresh winds from the N by Sat morning). | Days 5-7 Weather SummaryMostly dry. Very mild (max 17°C on Wed afternoon, min 9°C on Tue morning). Winds decreasing (fresh winds from the N on Wed morning, calm by Wed night). | |||||||||||||||||||
Fri 31 | Saturday 1 | Sunday 2 | Monday 3 | Tuesday 4 | Wednesday 5 | Thursday 6 | ||||||||||||||
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 18 | SW 17 | SW 17 | SW 16 | WSW 15 | SW 15 | SW 16 | SW 14 | SW 14 | SW 13 | SW 12 | SW 14 | SW 15 | SW 19 | SW 18 | SW 16 | SW 16 | SW 16 | SW 15 |
Wave Graph  | ||||||||||||||||||||
 kJ | 327 | 307 | 962 | 1308 | 1137 | 1423 | 1361 | 2314 | 1382 | 1099 | 673 | 386 | 528 | 385 | 515 | 996 | 737 | 931 | 1225 | 1187 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-off | cross | cross | cross | cross-on | cross-on | cross-on | cross | cross | off | cross-off | cross | cross-off | cross | cross-off | cross-on | cross-off | cross-on | cross-off |
High Tide | 2:45PM0.00m | 4:22PM0.00m | 5:59PM0.00m | 7:46PM0.00m | 9:44PM0.00m | 11:43PM0.00m | ||||||||||||||
Low Tide | 1:52AM-0.00m | 3:34AM-0.00m | 5:10AM-0.00m | 6:51AM-0.00m | 8:44AM-0.00m | 10:45AM-0.00m | ||||||||||||||
 |  | | |  |  | | |  | | | | |  | | | | | | | |
 | — | — | 7:24 | — | — | 7:24 | — | — | 7:22 | — | — | 7:22 | — | — | 7:20 | — | — | 7:20 | — | — |
 | 5:53 | — | — | 5:53 | — | — | 5:54 | — | — | 5:55 | — | — | 5:55 | — | — | 5:57 | — | — | 5:58 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 15 | 14 | 13 | 16 | 16 | 14 | 14 | 14 | 14 | 14 | 13 | 13 | 15 | 15 | 13 | 17 | 17 | 17 | 18 | 18 |
Feels °C | 13 | 10 | 5 | 10 | 9 | 9 | 7 | 9 | 10 | 10 | 9 | 9 | 12 | 10 | 5 | 13 | 13 | 14 | 15 | 14 |
Swell 1 Height (m) Direction Period (s) | SW 14 | SW 14 | SW 17 | SW 17 | SW 16 | S 16 | S 15 | SW 16 | SW 14 | SW 14 | SW 13 | SW 12 | SW 14 | SW 15 | SW 19 | SW 18 | SW 16 | SW 16 | SW 16 | SW 15 |
| kJ | 327 | 257 | 962 | 1308 | 1137 | 5 | 5 | 2314 | 1382 | 1099 | 673 | 386 | 528 | 385 | 515 | 996 | 737 | 931 | 1225 | 1187 |
Swell 2 Height (m) Direction Period (s) | SW 20 | SW 18 | S 18 | S 18 | S 16 | — | — | S 16 | S 15 | SW 18 | SW 17 | SW 15 | SW 22 | SW 21 | SW 14 | S 18 | S 8 | S 16 | S 16 | SW 20 |
| kJ | 239 | 307 | 6 | 24 | 21 | — | — | 5 | 4 | 49 | 227 | 229 | 73 | 269 | 248 | 6 | 5 | 5 | 5 | 459 |
Swell 3 Height (m) Direction Period (s) | S 19 | — | — | — | — | — | — | — | — | — | S 13 | — | — | — | S 19 | — | S 17 | — | — | S 16 |
| kJ | 7 | — | — | — | — | — | — | — | — | — | 3 | — | — | — | 7 | — | 6 | — | — | 5 |
Wind waves Height (m) Direction Period (s) | — | — | NNW 4 | NNW 4 | N 4 | WSW 15 | SW 15 | — | — | — | — | NE 3 | — | E 3 | N 4 | NNW 5 | — | — | — | — |
| kJ | — | — | 32 | 25 | 30 | 1423 | 1361 | — | — | — | — | 3 | — | 1 | 28 | 19 | — | — | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 24 | 24 | 249 | 346 | 412 | 995 | 1073 | 891 | 29 | 154 | 0 | 13 | 13 | 133 | 133 | 24 | 5 | 0 | 29 | 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.
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