Surf Forecasts:
The Island surf forecast from 21 Aug 2026:
- Best quality surf: Saturday 22 Aug, 9AM (local time) - 6ft (1.8m), 15s period, SW swell with cross-offshore winds.
- Most powerful swell: Thursday 27 Aug, 3PM (local time) - 7.5ft (2.3m), 19s period, SW swell with 3,712 kJ wave energy.
- Next surfable swell (1★+): Saturday 22 Aug, 9AM (local time) - 6ft (1.8m), 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 Saturday (Aug 22) at 9AM. The primary swell is predicted to be 1.8m and 15s period with a secondary swell of 0.3m and 24s. 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 2.3m 19s and forecast to arrive on Thursday (Aug 27) at 3PM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.0m 4s period and expected on Monday (Aug 24) at 9AM.
| Wave Type | Time (ACST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 9AM (Sat 22nd Aug) | 6ft (1.8m) 15s |
| Best Surf | 9AM (Sat 22nd Aug) | 6ft (1.8m) 15s |
| Most Powerful | 3PM (Thu 27th Aug) | 7.5ft (2.3m) 19s |
Table - best surf conditions forecast for The Island over the next 16 days.
The Lowdown
Alright, let's take a look at the waves for The Island. It's a reef break, so it's a spot for the guys and gals who know what they're doing. It's a consistent spot, which is a good sign.
First chance to get a surf in is Saturday morning, August 22nd. The swell is a solid 6ft from the SW, with a long period of 15 seconds. That's proper groundswell, and the energy is strong. The wind is glassy from the ENE at just 3 mph, so the water's gonna be like a lake. This is a top-quality session for the advanced surfers. The crowd can be around sometimes, but it's worth it.
Sunday morning the 23rd still has a 6ft SW swell, but the wind is a cross-offshore NNE at 16 mph. It's clean, but you'll be working harder. The energy is still high.
Then there's a bit of a slump. Monday the 24th drops right off to 3ft and poor conditions, and Tuesday the 25th brings a bigger 8ft swell but with a nasty 22 mph cross-shore wind. That's going to be a lumpy, unsurfable mess, and that size is for experts only.
The real standout, the one to plan for, is Friday morning, September 4th. The wind is dead calm, flat glass, and the swell is a clean 5ft from the SW with a 14-second period. The conditions are spot on, and the swell direction is perfect for the break. That's the session you want to be in the water for.
A few days before that, Wednesday morning the 2nd of September is also a good one. We've got a 4ft SW swell, but the wind is offshore from the ENE at 9 mph, giving you clean, peeling waves. It's a bit smaller, but it'll be a much more relaxing paddle.
The rest of the run is a bit of a mixed bag. We get some clean cross-offshore winds on the 29th, 30th, and 31st, but the swell is smaller and the wind is a fresh 19 mph, which makes it a harder session.
So, to put it simply: the best waves are on that glassy Friday morning on the 4th of September. The Saturday morning on the 22nd is a strong second option. The rest is a bit of a gamble with the wind.
Rusty.
Short Range ForecastModerate rain (total 17mm), heaviest on Sun night. Warm (max 20°C on Sun afternoon, min 13°C on Sat night). Winds increasing (calm on Sat morning, strong winds from the SSW by Mon night). | Days 4-6 Weather SummaryMostly dry. Very mild (max 17°C on Wed night, min 12°C on Wed morning). Winds increasing (calm on Wed afternoon, fresh winds from the SW by Thu night). | ||||||||||||||||||||
Saturday 22 | Sunday 23 | Monday 24 | Tuesday 25 | Wednesday 26 | Thursday 27 | Friday 28 | |||||||||||||||
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 15 | SW 15 | SW 15 | SW 17 | SW 16 | SW 15 | SW 14 | SW 14 | SW 13 | SW 16 | SW 14 | SW 14 | SW 13 | SW 12 | SW 14 | SW 20 | SW 19 | SW 17 | SW 16 | SW 16 | SW 14 |
Wave Graph  | |||||||||||||||||||||
 kJ | 1520 | 1212 | 1108 | 1643 | 1194 | 614 | 393 | 322 | 1346 | 2157 | 1484 | 801 | 488 | 306 | 466 | 1149 | 3712 | 3016 | 2548 | 3001 | 1728 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross | off | cross-off | cross | cross-off | cross-off | cross-on | cross-on | cross | cross-on | cross-on | cross | cross-on | cross-off | cross | on | cross-on | cross-on | cross-on | cross |
High Tide | 2:52AM0.00m | 4:23AM0.00m | 10:24AM0.00m | 12:18PM0.00m | |||||||||||||||||
Low Tide | 2:09PM-0.00m | 3:36PM-0.00m | 5:13PM-0.00m | 7:08PM-0.00m | 9:19PM-0.00m | 1:09AM-0.00m | |||||||||||||||
 | |  |  |  |  |  |  |  | | | | | | | | | | | | | |
 | 7:03 | — | — | 7:03 | — | — | 7:01 | — | — | 7:00 | — | — | 6:58 | — | — | 6:58 | — | — | 6:56 | — | — |
 | — | 6:07 | — | — | 6:08 | — | — | 6:09 | — | — | 6:09 | — | — | 6:10 | — | — | 6:12 | — | — | 6:12 | — |
mm | — | — | — | — | — | 10 | 5 | 2 | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 15 | 15 | 14 | 17 | 20 | 16 | 15 | 15 | 14 | 14 | 14 | 14 | 13 | 16 | 17 | 16 | 16 | 14 | 13 | 13 | 13 |
Feels °C | 13 | 13 | 11 | 12 | 16 | 10 | 11 | 12 | 7 | 8 | 9 | 11 | 9 | 14 | 12 | 12 | 12 | 8 | 4 | 2 | 3 |
Swell 1 Height (m) Direction Period (s) | SW 15 | SW 15 | SW 15 | SW 17 | SW 16 | SW 15 | SW 14 | SW 14 | — | — | — | SW 14 | SW 13 | SW 12 | SW 14 | SW 20 | S 19 | S 18 | — | — | — |
| kJ | 1520 | 1212 | 1108 | 1643 | 1194 | 614 | 393 | 322 | — | — | — | 801 | 488 | 306 | 466 | 1149 | 7 | 6 | — | — | — |
Swell 2 Height (m) Direction Period (s) | SW 24 | SW 21 | SW 20 | SSE 18 | S 16 | NNW 4 | SW 20 | SW 18 | — | — | — | S 14 | SW 18 | SW 16 | SW 24 | SW 15 | — | — | — | — | — |
| kJ | 87 | 285 | 373 | 30 | 5 | 5 | 15 | 83 | — | — | — | 4 | 50 | 127 | 22 | 492 | — | — | — | — | — |
Swell 3 Height (m) Direction Period (s) | S 16 | S 15 | S 19 | — | — | S 16 | S 14 | — | — | — | — | — | S 13 | S 16 | — | S 22 | — | — | — | — | — |
| kJ | 5 | 5 | 29 | — | — | 5 | 4 | — | — | — | — | — | 3 | 5 | — | 9 | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | — | — | — | NNE 4 | — | — | N 4 | NW 4 | SW 13 | SW 16 | SW 14 | — | — | — | — | NNW 5 | SW 19 | SW 17 | SW 16 | SW 16 | SW 14 |
| kJ | — | — | — | 5 | — | — | 35 | 12 | 1346 | 2157 | 1484 | — | — | — | — | 37 | 3712 | 3016 | 2548 | 3001 | 1728 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 0 | 154 | 0 | 154 | 24 | 13 | 335 | 133 | 337 | 398 | 398 | 337 | 13 | 154 | 154 | 488 | 356 | 891 | 891 | 810 | 1026 |
Best forecast wave conditions in Eyre Peninsula | |||||||||||||||||||||
Best forecast wave conditions in Australia | |||||||||||||||||||||
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The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our The Island surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.
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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