
Surf Forecasts:
The Island surf forecast from 17 Jul 2026:
- Best quality surf: Thursday 23 Jul, 9PM (local time) - 6.5ft (2.0m), 16s period, SW swell with cross-offshore winds.
- Most powerful swell: Thursday 23 Jul, 12AM (local time) - 10ft (3.0m), 15s period, SW swell with 3,377 kJ wave energy.
- Next surfable swell (1★+): Saturday 18 Jul, 6PM (local time) - 2.5ft (0.8m), 13s 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 Saturday (Jul 18) at 6PM. The primary swell is predicted to be 0.8m and 13s period with a secondary swell of 0.3m and 4s. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at The Island in the next 16 days are 3.0m 15s and forecast to arrive on Thursday (Jul 23) at 12AM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.4m 3s period and expected on Sunday (Jul 19) at 12AM.
| Wave Type | Time (ACST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 6PM (Sat 18th Jul) | 2.5ft (0.8m) 13s |
| Best Surf | 9PM (Thu 23rd Jul) | 6.5ft (2.0m) 16s |
| Most Powerful | 12AM (Thu 23rd Jul) | 10ft (3.0m) 15s |
Table - best surf conditions forecast for The Island over the next 16 days.
The Lowdown
Alright, grab your board and listen up – it's Rusty here with the outlook for The Island. We've got a slow start, but a solid run of swell is building for the end of the month and into August.
The coming week is a bit of a write-off, to be honest. We’ve got small, junky swells and cross-shore or cross-onshore winds that are just chopping everything up. The water temp is sitting at 61°, which is bang on average for this time of year. Nothing to get excited about until the 23rd of July.
That Thursday morning, the 23rd, things start to shift. We’ll see a 7ft SW groundswell (14-second period) roll in, with a moderate cross-offshore breeze from the SSE keeping things clean. The combined energy is pumping at 1733, but it’s a solid size for The Island, and the comments say it’s for experienced surfers. It’s a marginal call, but at least you’ll get some waves.
The first real standout comes on Friday the 24th. The morning session is looking clean with a 5ft SW swell (14-second period) and a light NNE cross-offshore breeze. The energy is still strong at 1019 and the conditions are rated excellent for experienced surfers. Then, the afternoon glass-off is a special treat. The wind drops to 3 mph from the SW, going glassy, with a 5ft SW swell. That’s as clean as it gets for a reef break. Crowds are possible here, so get out there early.
The next big window is the 28th of July, Tuesday. The morning has a 6ft SW swell (16-second period) with a light ESE cross-offshore breeze, and the energy is solid at 1616. The afternoon looks even better with a 6ft SW swell and a moderate offshore breeze from the ENE, keeping it clean. Both sessions are rated excellent for experienced surfers.
The real standout of the whole forecast, though, is the 31st of July, Friday. The morning session is the pick of the bunch. We’re looking at an 8ft SW groundswell (18-second period) with a moderate offshore breeze from the ENE. The combined energy is a massive 4348 – that’s a lot of power. It’s rated excellent for experienced surfers, and for good reason. This is a serious, long-period groundswell with clean, offshore winds. It’s going to be a proper session for the crew who know what they’re doing. The afternoon holds similar size but with a cross-offshore breeze.
We’ve also got a Sunday morning, the 2nd of August, that looks promising with a 7ft SW swell (16-second period) and glassy conditions. That’s a good way to finish the run.
So, to sum it up: the first week is a dud. Get your gear ready for the 24th of July for a clean afternoon, and definitely circle the 31st of July in red. That Friday morning is the one to aim for.
Rusty.
Short Range ForecastMostly dry. Very mild (max 18°C on Sat afternoon, min 13°C on Sat morning). Wind will be generally light. | Days 4-6 Weather SummarySome drizzle, heaviest during Wed morning. Very mild (max 17°C on Tue afternoon, min 10°C on Thu night). Winds increasing (light winds from the NW on Tue night, fresh winds from the SSW by Wed morning). | ||||||||||||||||||||
Saturday 18 | Sunday 19 | Monday 20 | Tuesday 21 | Wednesday 22 | Thursday 23 | Friday 24 | |||||||||||||||
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 13 | SW 19 | SW 18 | SW 16 | SW 15 | WSW 14 | SW 14 | SW 13 | SW 13 | SW 12 | SW 11 | SW 13 | SW 15 | SW 14 | SW 14 | SW 16 | SW 14 | SW 14 | SW 14 |
Wave Graph | |||||||||||||||||||||
261 | 253 | 170 | 133 | 607 | 748 | 640 | 701 | 765 | 552 | 459 | 319 | 363 | 892 | 3377 | 1712 | 1616 | 1764 | 998 | 791 | 676 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross-on | cross-off | cross | cross-on | cross-off | cross | cross-on | cross-off | cross | cross-on | cross-on | cross-on | cross-on | cross | cross-off | cross-off | off | cross-off | glassy | off |
High Tide | 2:40PM0.00m | 4:16PM0.00m | 5:55PM0.00m | 7:51PM0.00m | 10:07PM0.00m | 2:17AM0.00m | |||||||||||||||
Low Tide | 3:28AM-0.00m | 5:04AM-0.00m | 6:50AM-0.00m | 8:56AM-0.00m | 11:16AM-0.00m | 1:23PM-0.00m | |||||||||||||||
7:33 | — | — | 7:33 | — | — | 7:31 | — | — | 7:31 | — | — | 7:31 | — | — | 7:30 | — | — | 7:30 | — | — | |
— | 5:45 | — | — | 5:45 | — | — | 5:46 | — | — | 5:46 | — | — | 5:47 | — | — | 5:47 | — | — | 5:49 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | 1 | — | — | — | — | — | — | — | — |
Temp °C | 14 | 18 | 18 | 15 | 18 | 18 | 15 | 17 | 17 | 15 | 17 | 17 | 15 | 14 | 14 | 12 | 12 | 12 | 11 | 11 | 11 |
Feels °C | 8 | 15 | 13 | 9 | 14 | 13 | 10 | 15 | 15 | 10 | 14 | 15 | 11 | 7 | 7 | 6 | 6 | 8 | 8 | 8 | 8 |
Swell 1 Height (m) Direction Period (s) | SW 13 | SW 13 | SW 13 | SW 12 | SW 18 | SW 16 | SW 15 | WSW 14 | SW 14 | SW 13 | SW 13 | SW 12 | S 14 | — | SW 15 | SW 14 | SW 14 | SW 16 | SW 14 | SW 14 | SW 14 |
261 | 253 | 170 | 69 | 607 | 748 | 640 | 701 | 765 | 552 | 459 | 319 | 4 | — | 3377 | 1712 | 1616 | 1764 | 998 | 791 | 676 | |
Swell 2 Height (m) Direction Period (s) | — | — | SW 21 | SW 19 | — | — | SSW 10 | W 6 | S 15 | S 14 | S 14 | S 14 | — | — | — | SSE 15 | SSE 18 | SSE 16 | SSE 15 | S 14 | SSE 14 |
— | — | 18 | 133 | — | — | 9 | 3 | 4 | 4 | 4 | 4 | — | — | — | 21 | 30 | 25 | 21 | 16 | 20 | |
Swell 3 Height (m) Direction Period (s) | — | — | — | SW 15 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
— | — | — | 55 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Wind waves Height (m) Direction Period (s) | N 3 | NW 4 | NNE 3 | NNW 4 | NNW 4 | NW 6 | NNW 4 | NW 4 | — | N 3 | NW 3 | — | SW 11 | SW 13 | SW 15 | — | — | — | — | — | — |
6 | 3 | 3 | 21 | 11 | 8 | 11 | 11 | — | 3 | 3 | — | 363 | 892 | 1914 | — | — | — | — | — | — | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 24 | 24 | 24 | 154 | 250 | 24 | 24 | 24 | 0 | 24 | 346 | 24 | 1074 | 1065 | 337 | 337 | 398 | 0 | 0 | 0 | 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.










