
Surf Forecasts:
The Island surf forecast from 31 Jul 2026:
- Best quality surf: Monday 3 Aug, 6PM (local time) - 6ft (1.8m), 13s period, SW swell with cross-offshore winds.
- Most powerful swell: Monday 3 Aug, 3AM (local time) - 10ft (3.0m), 15s period, SW swell with 3,517 kJ wave energy.
- Next surfable swell (1★+): Monday 3 Aug, 6PM (local time) - 6ft (1.8m), 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 Monday (Aug 03) at 6PM. The primary swell is predicted to be 1.8m 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 3.0m 15s and forecast to arrive on Monday (Aug 03) at 3AM. 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+) | 6PM (Mon 3rd Aug) | 6ft (1.8m) 13s |
| Best Surf | 6PM (Mon 3rd Aug) | 6ft (1.8m) 13s |
| Most Powerful | 3AM (Mon 3rd Aug) | 10ft (3.0m) 15s |
Table - best surf conditions forecast for The Island over the next 16 days.
The Lowdown
Alright, Rusty here. Let's have a look at what's on the cards for The Island.
It's a bit of a slow start, to be honest. We've got a solid, long-period SW groundswell on the way, but the wind is going to mess it up for the first few days. The Island is exposed to the SW, so that's the right direction, but that initial energy is going to be fighting a messy cross-shore wind. The water temp is sitting at 59°, which is about average for this time of year, nothing unusual there.
The opening weekend (1st and 2nd of August) is a write-off. It's clean but the wind is wrong, making it choppy and horrible. Don't even bother. The start of the new week (3rd August) is only slightly better, with a light wind but still cross-onshore, leaving the waves a bit bumpy. The island is a consistent reef break, so it'll hold the swell, but the conditions just aren't there.
We get a bit of a lull in the swell on the 4th and 5th, with the energy dropping right off. The 4th Tuesday morning actually goes clean with a cross-offshore NE wind, but the swell is down to 4 ft. It's a little weak, only 605 (moderate energy) and the period is a solid 15 seconds, so it might be a bit fickle for the size. A surfer could get a few but it's not a standout.
The wind gets messy again through the 5th and 6th, but by the 7th of August, Friday morning, the wind switches to a clean cross-offshore from the N. The swell is back up to 6 ft from the SW, with a 18-second period and a huge energy reading of 2289 (strong). That's a serious amount of water moving. The problem is that at 6 ft and a period that long, on a reef break, it will be throwing out some heavy, hollow waves. It's a solid call for advanced surfers only, but it could be a ripper of a session if you've got the skills.
Then we get smashed by a storm on the 8th and 9th of August. A near-gale force onshore wind of 31 mph on the Saturday is going to be a total disaster. This is a kitesurfer's dream, not a paddle surfer's. The swell is there but it's blown out completely. Sunday is hardly any better with a strong cross-onshore. Avoid the water.
The second week is where the real promise lies. Monday the 10th of August sees a massive jump in size, with 10 ft of SW swell. That's a lot of juice, with the energy reading hitting 4877 (very strong). The wind is cross-shore, so it's not perfect, but at that size it's going to be heavy and powerful for experts only. The wind cleans up on Tuesday the 11th, with a cross-offshore NNE breeze. The swell holds at 8 ft to 8 ft, and it's still very strong (3056 energy). This is a big, powerful, clean swell for the brave.
Now, the absolute standout of the whole 16-day stretch is Wednesday the 12th of August. The wind swings to a light offshore from the ENE, and the swell is a very manageable 6 ft. The energy is still solid at 1083 (moderate to strong), but it's a nice size for a well-set reef. The period is 13 seconds, so it's a proper groundswell. The morning is described as "excellent surf conditions for experienced surfers." This is the one to circle on the calendar. It's a glassy, clean, offshore day at a classic reef break. The crowds are listed as "sometimes" so you might have some company, but it's a quality session on offer.
We get a bit of a drop-off towards the end of the week, but Friday the 14th of August is another cracker. A clean offshore wind from the E with a 7 ft SW swell and a 16-second period. That's a pumping, long-period groundswell with clean conditions. The energy is 2597 (strong). This is a heavy, powerful wave for advanced surfers, but it's a gem.
The following Saturday morning (15th August) is also looking good, with a moderate offshore wind and a clean 5 ft swell. It's a step down in size but still a very good wave. The run finishes on Sunday the 16th of August with a glassy afternoon session, where the wind drops to nothing. The swell is a nice 5 ft, and the energy is 1139. The conditions are described as "excellent" for experienced surfers. A perfect way to end the forecast period.
So, the call is this: ignore the first week. The standout is Wednesday the 12th of August for a perfect, clean, offshore day at a solid but not too big size. The second best bet is the Friday the 14th if you want a bigger, more powerful, clean wave. The Island is a consistent reef, and when it's clean, it's a classic.
Rusty.
Short Range ForecastMostly dry. Very mild (max 16°C on Sat afternoon, min 10°C on Sat morning). Winds decreasing (fresh winds from the N on Sat morning, light winds from the SE by Mon night). | Days 4-6 Weather SummarySome drizzle, heaviest during Wed morning. Very mild (max 15°C on Tue afternoon, min 9°C on Tue morning). Wind will be generally light. | ||||||||||||||||||||
Saturday 1 | Sunday 2 | Monday 3 | Tuesday 4 | Wednesday 5 | Thursday 6 | Friday 7 | |||||||||||||||
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 17 | 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 18 | SW 17 | SW 16 |
Wave Graph | |||||||||||||||||||||
962 | 1308 | 1137 | 1288 | 1361 | 2314 | 1602 | 1169 | 732 | 374 | 535 | 341 | 441 | 786 | 746 | 636 | 1366 | 1707 | 2267 | 1663 | 823 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross | cross | cross-on | cross-on | cross-on | cross-on | cross | off | cross-off | cross | cross-off | cross | cross | cross-on | cross | cross-on | cross-off | cross-off | cross | cross |
High Tide | 2:45PM0.00m | 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 | — | — | 7:24 | — | — | 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 | — | — | — | — | — | — | — | 18 |
Temp °C | 13 | 16 | 16 | 14 | 15 | 14 | 14 | 14 | 12 | 12 | 15 | 15 | 13 | 15 | 15 | 14 | 14 | 14 | 18 | 21 | 20 |
Feels °C | 5 | 10 | 9 | 8 | 8 | 9 | 10 | 10 | 9 | 8 | 12 | 11 | 7 | 11 | 12 | 12 | 12 | 12 | 11 | 15 | 9 |
Swell 1 Height (m) Direction Period (s) | SW 17 | SW 17 | SW 16 | S 16 | S 15 | S 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 18 | SW 17 | SW 16 |
962 | 1308 | 1137 | 5 | 5 | 5 | 1602 | 1169 | 732 | 374 | 535 | 341 | 441 | 786 | 746 | 636 | 1366 | 1707 | 2267 | 1663 | 823 | |
Swell 2 Height (m) Direction Period (s) | S 18 | S 18 | S 16 | — | — | — | S 15 | SW 18 | SW 17 | SW 15 | SW 21 | SW 21 | SW 14 | S 18 | S 17 | SW 20 | S 17 | S 16 | S 19 | S 18 | S 17 |
6 | 24 | 21 | — | — | — | 4 | 49 | 230 | 229 | 72 | 208 | 203 | 6 | 6 | 306 | 6 | 5 | 7 | 6 | 5 | |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | S 11 | S 11 | — | S 19 | — | — | S 16 | — | — | — | — | — |
— | — | — | — | — | — | — | — | — | 2 | 2 | — | 7 | — | — | 5 | — | — | — | — | — | |
Wind waves Height (m) Direction Period (s) | NNW 4 | NNW 4 | NNW 4 | WSW 15 | SW 15 | SW 16 | — | — | — | NE 3 | — | ENE 3 | N 4 | N 4 | N 3 | — | — | — | N 4 | N 4 | N 5 |
34 | 26 | 31 | 1288 | 1361 | 2314 | — | — | — | 2 | — | 2 | 22 | 14 | 6 | — | — | — | 15 | 15 | 80 | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 249 | 346 | 412 | 995 | 499 | 891 | 154 | 1028 | 0 | 13 | 13 | 133 | 154 | 24 | 249 | 29 | 154 | 0 | 24 | 412 | 496 |
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.











