
Surf Forecasts:
The Island surf forecast from 17 Jul 2026:
- Best quality surf: Friday 17 Jul, 6PM (local time) - 3.5ft (1.1m), 15s period, SW swell with glassy winds.
- Most powerful swell: Thursday 23 Jul, 6AM (local time) - 6ft (1.8m), 14s period, SW swell with 1,355 kJ wave energy.
- Next surfable swell (1★+): Friday 17 Jul, 6PM (local time) - 3.5ft (1.1m), 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 Friday (Jul 17) at 6PM. The primary swell is predicted to be 1.1m and 15s period with a secondary swell of 0.1m 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 1.8m 14s and forecast to arrive on Thursday (Jul 23) at 6AM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.6m 3s period and expected on Sunday (Jul 19) at 3AM.
| Wave Type | Time (ACST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 6PM (Fri 17th Jul) | 3.5ft (1.1m) 15s |
| Best Surf | 6PM (Fri 17th Jul) | 3.5ft (1.1m) 15s |
| Most Powerful | 6AM (Thu 23rd Jul) | 6ft (1.8m) 14s |
Table - best surf conditions forecast for The Island over the next 16 days.
The Lowdown
Alright, Rusty here. Let's talk about what's on the menu for the next couple of weeks.
Straight up, it’s a bit of a slow start and a mixed bag through the period. The Island is a consistent reef break that really needs a clean SW swell to line up, and we’re getting pulses of that all through, but the wind is going to be the main character in this story, and sometimes not in a good way.
We kick off on Friday, 17th July, but it’s not what you’d call firing. The swell is a clean 4ft from the SW with a long 16-second period, which means there’s some good energy in the water (combined energy of 895). The problem is the wind is getting messy on the first day, making it choppy. Water temp is sitting at 60°, which is about normal for this time of year, so nothing wild there.
The standout window is actually the following week. The best looking day is definitely Thursday, 23rd July. We’ve got the biggest swell of the run building to 6ft from the SW, with a solid 14-second period. That’s proper groundswell. The combined energy jumps up to 1,334, which is a strong, powerful push. The wind is a gentle cross-shore, keeping it clean and lined up. This is the one for the experienced crew. For the advanced surfers, the size and power will be a treat, but the wave direction is bang on the optimum for The Island, so it should be well-shaped.
Friday, 24th July is also a beauty. The swell drops a touch to 5ft, still from the SW, but the wind goes light and cross-offshore. That’s glassy, clean conditions. The energy is still strong (806), and it will be a welcome change from the windier days. Keep in mind, this spot can get crowded sometimes, so get there early.
The rest of the month is a bit of a write-off after that. The wind gets strong and onshore from the 25th through the 30th of July, with a few days of fresh breezes creating lumpy, messy conditions. There’s a decent size swell (5ft) on the 28th, but the cross-onshore wind just ruins it. The 31st of July sees a big bump in energy (1,597) but again, it’s paired with a fresh cross-onshore wind, making it a messy prospect.
We do see a bit of light at the end of the tunnel on Saturday, 1st August. The swell is a solid 4ft from the SW, period is 16 seconds, and the wind finally swings clean cross-offshore. The energy is still strong (1,091). It’s a bit far out to call it a guarantee, but it’s a promising sign after a long stretch of howling wind.
So, to wrap it up, don't bother with the first few days. Wait for the 23rd and 24th of July – that’s where the magic is. The rest of the time, it’s either too small, too windy, or just plain messy. The Island is a wave that can handle a bit of size, but it needs the wind to play ball.
Rusty.
Short Range ForecastMostly dry. Very mild (max 18°C on Sat night, min 12°C on Fri morning). Wind will be generally light. | Days 4-6 Weather SummaryMostly dry. Very mild (max 17°C on Mon afternoon, min 13°C on Wed night). Wind will be generally light. | ||||||||||||||||||||
Friday 17 | Saturday 18 | Sunday 19 | Monday 20 | Tuesday 21 | Wednesday 22 | Thursday 23 | |||||||||||||||
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 16 | SW 16 | SW 14 | SW 13 | SW 13 | SW 13 | SW 19 | SW 18 | SW 16 | SW 15 | SW 14 | SW 14 | SW 13 | SW 13 | SW 12 | SW 14 | SW 13 | SW 15 | SW 14 | SW 14 | SW 14 |
Wave Graph | |||||||||||||||||||||
886 | 773 | 412 | 261 | 253 | 170 | 133 | 607 | 748 | 566 | 536 | 752 | 632 | 527 | 319 | 125 | 299 | 1025 | 1318 | 1044 | 961 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross-on | cross-off | cross-off | cross | cross-off | cross | cross-on | cross-off | cross | cross-on | cross-off | cross | on | glassy | glassy | cross | cross-off | cross | cross | cross-off |
High Tide | 12:56PM0.00m | 2:40PM0.00m | 4:16PM0.00m | 5:55PM0.00m | 7:51PM0.00m | 10:07PM0.00m | |||||||||||||||
Low Tide | 1:50AM-0.00m | 3:28AM-0.00m | 5:04AM-0.00m | 6:50AM-0.00m | 8:56AM-0.00m | 11:16AM-0.00m | |||||||||||||||
7:33 | — | — | 7:33 | — | — | 7:33 | — | — | 7:31 | — | — | 7:31 | — | — | 7:31 | — | — | 7:30 | — | — | |
— | 5:45 | — | — | 5:45 | — | — | 5:45 | — | — | 5:46 | — | — | 5:46 | — | — | 5:47 | — | — | 5:47 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 13 | 17 | 16 | 14 | 17 | 18 | 14 | 18 | 18 | 15 | 17 | 17 | 16 | 16 | 16 | 15 | 15 | 14 | 14 | 13 | 13 |
Feels °C | 7 | 14 | 11 | 8 | 13 | 13 | 8 | 14 | 13 | 10 | 15 | 15 | 12 | 13 | 14 | 14 | 13 | 9 | 11 | 10 | 9 |
Swell 1 Height (m) Direction Period (s) | SW 16 | SW 16 | SW 14 | SW 13 | SW 13 | SW 13 | SW 12 | SW 18 | SW 16 | SW 15 | SW 14 | SW 14 | SW 13 | SW 13 | SW 12 | SW 11 | SW 13 | SW 15 | SW 14 | SW 14 | SW 14 |
886 | 773 | 412 | 261 | 253 | 170 | 69 | 607 | 748 | 566 | 536 | 752 | 632 | 527 | 319 | 119 | 299 | 1025 | 1318 | 1044 | 961 | |
Swell 2 Height (m) Direction Period (s) | S 16 | S 16 | S 15 | — | — | SW 21 | SW 19 | — | — | SSW 10 | S 10 | — | S 14 | S 14 | S 14 | SW 14 | — | S 16 | S 14 | S 14 | S 16 |
5 | 5 | 4 | — | — | 18 | 133 | — | — | 9 | 2 | — | 4 | 4 | 4 | 125 | — | 5 | 16 | 4 | 5 | |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | WSW 21 | SW 15 | — | — | — | — | — | — | — | — | S 14 | — | — | — | — | — |
— | — | — | — | — | 45 | 55 | — | — | — | — | — | — | — | — | 4 | — | — | — | — | — | |
Wind waves Height (m) Direction Period (s) | NNW 3 | NNW 4 | — | N 3 | NNW 4 | N 3 | NNW 4 | NNW 4 | NW 6 | NNW 4 | NW 4 | — | — | — | — | — | S 4 | — | — | — | — |
4 | 11 | — | 5 | 5 | 2 | 20 | 12 | 8 | 9 | 5 | — | — | — | — | — | 21 | — | — | — | — | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 24 | 24 | 24 | 24 | 13 | 133 | 154 | 250 | 24 | 24 | 24 | 0 | 13 | 346 | 0 | 0 | 337 | 335 | 89 | 154 | 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.










