Surf Forecasts:
The Island surf forecast from 1 Aug 2026:
- Best quality surf: Monday 3 Aug, 6PM (local time) - 5ft (1.6m), 13s period, SW swell with cross-offshore winds.
- Most powerful swell: Friday 7 Aug, 6AM (local time) - 6.5ft (2.0m), 19s period, SW swell with 2,673 kJ wave energy.
- Next surfable swell (1★+): Monday 3 Aug, 6PM (local time) - 5ft (1.6m), 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 Monday (Aug 03) at 6PM. The primary swell is predicted to be 1.6m and 13s period with a secondary swell of 0.4m and 18s. 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 2.0m 19s and forecast to arrive on Friday (Aug 07) 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 0.8m 4s period and expected on Friday (Aug 07) at 9AM.
| Wave Type | Time (ACST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 6PM (Mon 3rd Aug) | 5ft (1.6m) 13s |
| Best Surf | 6PM (Mon 3rd Aug) | 5ft (1.6m) 13s |
| Most Powerful | 6AM (Fri 7th Aug) | 6.5ft (2.0m) 19s |
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 table for The Island.
Right off the bat, we’ve got a stretch of mostly messy, blown-out conditions for the first week and a half. The Island is a consistent reef break that handles a SW swell, but the winds are just not playing ball for most of this period. The water temperature is sitting at 59°, which is about average for this time of year, so nothing wild there.
The first real glimmer of hope comes on Saturday, August 15th. That morning, we’re looking at the standout of the entire forecast. The winds go glassy, dead calm, with a solid 7 ft SW groundswell rolling in with a 17-second period. That’s proper energy (combined energy of 2363), and with that long period, The Island will really line up and offer some powerful, well-shaped waves. It’s a reef break, so it’s only for advanced surfers, but this is the morning to be out there. The afternoon takes a nosedive as the wind swings onshore, so get it while it’s good.
Before that, the rest of the outlook is a write-off. From August 1st through to the morning of the 14th, it’s a constant battle with onshore and cross-shore winds, with the swell ranging from 4 ft to well over 10 ft. A lot of that bigger stuff is wrapped up in stormy winds, so it’s just one big lumpy mess. The few morning windows with cross-off winds on the 4th, 5th, 6th, and 7th offer clean conditions but with very small swell – around 3 ft to 4 ft – which is marginal at best for this setup. The swell direction is right for The Island, but the size just isn't there, and the wind is never quite right.
The period from the 9th up to the 14th gets a bit heavy, with a lot of swell in the 8 ft to 12 ft range, but it’s all accompanied by screaming onshore winds from the WSW. For a reef break, that’s a total no-go. It’s way too big for beginners and the conditions are just ugly for anyone.
So, to sum it up: save your energy for the morning of Saturday, August 15th. That glassy, long-period SW groundswell is the only true standout in a sea of otherwise average to poor conditions. The rest of the time, it’s a waiting game.
Rusty.
Short Range ForecastMostly dry. Very mild (max 15°C on Sat afternoon, min 9°C on Tue morning). Winds decreasing (fresh winds from the N on Sat night, light winds from the ESE by Mon night). | Days 5-7 Weather SummaryMostly dry. Very mild (max 18°C on Fri morning, min 13°C on Tue night). Winds increasing (light winds from the NNW on Tue afternoon, fresh winds from the N by Fri morning). | |||||||||||||||||||
Sat 1 | Sunday 2 | Monday 3 | Tuesday 4 | Wednesday 5 | Thursday 6 | Friday 7 | ||||||||||||||
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 17 | SW 16 | WSW 15 | SW 15 | SW 16 | SW 14 | SW 14 | SW 13 | SW 12 | SW 15 | SW 14 | SW 19 | SW 18 | SW 16 | SW 16 | SW 17 | SW 16 | SW 17 | SW 17 | SW 16 |
Wave Graph  | ||||||||||||||||||||
 kJ | 1308 | 1137 | 1344 | 1361 | 2314 | 1382 | 1169 | 732 | 380 | 535 | 346 | 441 | 786 | 755 | 546 | 1118 | 1852 | 2191 | 1682 | 1109 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross | on | cross-on | cross-on | cross | cross | off | cross-off | cross-on | cross-off | cross-off | cross | cross | cross-off | on | off | cross-off | cross | cross |
High Tide | 4:22PM0.00m | 5:59PM0.00m | 7:46PM0.00m | 9:44PM0.00m | 11:43PM0.00m | 1:32AM0.00m | ||||||||||||||
Low Tide | 3:34AM-0.00m | 5:10AM-0.00m | 6:51AM-0.00m | 8:44AM-0.00m | 10:45AM-0.00m | 12:40PM-0.00m | ||||||||||||||
 |  |  | |  |  | | | | | | | | | | | | | |  | |
 | — | — | 7:24 | — | — | 7:22 | — | — | 7:22 | — | — | 7:20 | — | — | 7:20 | — | — | 7:18 | — | — |
 | 5:53 | — | — | 5:54 | — | — | 5:55 | — | — | 5:55 | — | — | 5:57 | — | — | 5:58 | — | — | 5:58 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 |
Temp °C | 15 | 15 | 14 | 14 | 14 | 14 | 14 | 12 | 12 | 14 | 14 | 15 | 16 | 15 | 16 | 16 | 16 | 18 | 21 | 19 |
Feels °C | 10 | 8 | 10 | 7 | 9 | 11 | 9 | 9 | 9 | 12 | 10 | 8 | 9 | 11 | 13 | 13 | 14 | 10 | 14 | 9 |
Swell 1 Height (m) Direction Period (s) | SW 17 | SW 16 | S 16 | S 15 | SW 16 | SW 14 | SW 14 | SW 13 | SW 12 | SW 15 | SW 14 | SW 19 | SW 18 | SW 16 | SW 16 | SW 17 | SW 16 | SW 17 | SW 17 | SW 16 |
| kJ | 1308 | 1137 | 5 | 5 | 2314 | 1382 | 1169 | 732 | 380 | 535 | 346 | 441 | 786 | 755 | 546 | 1118 | 1852 | 2191 | 1682 | 1109 |
Swell 2 Height (m) Direction Period (s) | S 18 | S 16 | — | — | S 16 | S 15 | SW 18 | SW 17 | SW 15 | SW 21 | SW 21 | SW 14 | S 18 | SW 8 | SW 20 | S 16 | S 17 | S 19 | S 18 | S 17 |
| kJ | 24 | 21 | — | — | 5 | 4 | 49 | 230 | 229 | 72 | 208 | 203 | 6 | 9 | 138 | 5 | 6 | 7 | 6 | 6 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | S 12 | — | — | S 21 | SSW 9 | — | S 17 | S 16 | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | 3 | — | — | 8 | 27 | — | 6 | 5 | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | NNW 4 | N 4 | WSW 15 | SW 15 | — | — | — | — | — | — | ENE 3 | N 4 | N 4 | NNW 4 | — | — | — | N 4 | N 4 | NNW 5 |
| kJ | 26 | 21 | 1344 | 1361 | — | — | — | — | — | — | 1 | 20 | 11 | 7 | — | — | — | 22 | 22 | 69 |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 346 | 155 | 995 | 995 | 891 | 154 | 1065 | 0 | 13 | 13 | 133 | 51 | 24 | 13 | 0 | 133 | 0 | 349 | 154 | 498 |
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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