The Island Surf Break

Lat Long: 33.05° S 134.17° E

The Island Surf Forecast and Surf Report

Issued: 8 am 28 Aug 2026 (local time)

Forecast update in  hr  min

Today's The Island sea temperature is
14.9°C
0.6° 

The Island surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.


The Island surf forecast from 28 Aug 2026:

  • Best quality surf: Friday 28 Aug, 3PM (local time) - 5ft (1.5m), 16s period, SW swell with cross-offshore winds.
  • Most powerful swell: Monday 31 Aug, 9AM (local time) - 6ft (1.8m), 19s period, SW swell with 2,146 kJ wave energy.
  • Next surfable swell (1★+): Friday 28 Aug, 3PM (local time) - 5ft (1.5m), 16s 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 (Aug 28) at 3PM. The primary swell is predicted to be 1.5m and 16s period with a secondary swell of 0.1m and 16s. 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 1.8m 19s and forecast to arrive on Monday (Aug 31) at 9AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.6m 4s period and expected on Saturday (Aug 29) at 9PM.

Wave TypeTime (ACST) & Date Wave Height & Period
Next good surf (1 star+) 3PM (Fri 28th Aug)5ft (1.5m) 16s
Best Surf 3PM (Fri 28th Aug)5ft (1.5m) 16s
Most Powerful 9AM (Mon 31st Aug)6ft (1.8m) 19s

Table - best surf conditions forecast for The Island over the next 16 days.


The Lowdown

Alright, Rusty here. Let's get into it.

Alright folks, we've got a mixed bag coming up for The Island. This is a consistent, exposed reef break that handles a SW swell perfectly, and over the next couple of weeks, the swell energy is going to fluctuate something fierce.

The water temp is sitting at 58.8°, which is pretty much average for this time of year, so no wetsuit dramas on that front.

Let’s kick off with Friday the 28th of August. We’ve got a solid 5.6 ft SW groundswell rolling in with a very long 16-second period. The combined energy is strong at 1510. The wind is a cross-off from the NE at 12 mph, keeping it clean. This is a solid day for experienced surfers, but for the average punter, the size and power might be a bit of a handful. Friday afternoon the swell eases slightly to 4.9 ft, but the wind drops to 9 mph, still cross-off. A good day, but not the standout.

Saturday the 29th sees the swell drop to 3.6 ft in the morning with a clean offshore E wind at 9 mph. The energy is moderate at 465. It's clean but lacking that punch. Saturday afternoon gets smaller to 3.0 ft.

Sunday the 30th continues with the smaller trend, 3.0 ft in the morning but with a moderate offshore breeze from the E at 12 mph. The energy is moderate at 491. However, Sunday afternoon picks up again to 3.9 ft from the SW with a *very* long 19-second period. That’s some serious groundswell energy at 1005. This long period stuff will be lining up beautifully at this reef.

Monday the 31st brings a step up in size, with 5.9 ft SW swell and a long 19-second period. The energy is strong at 2175. The wind is a cross-off from the NNE at 12 mph. It stays solid all day, with Monday afternoon seeing similar 5.9 ft swell but the wind switches to a light cross-shore from the N at 6 mph. It will be a bit lumpy with that cross-shore ripple but still rideable.

Tuesday the 1st of September is a write-off. The wind is a fresh 22 mph cross-shore from the N in the morning, making a mess of the 4.3 ft swell. Then it goes onshore from the WNW in the afternoon. This is a day to stay home. Wednesday the 2nd and Thursday the 3rd are also poor, with onshore and fresh cross-onshore winds ruining the chest to head-high swell. The setup looks more interesting for kite surfing than paddle surfing during these days.

Now, here’s our first real standout. The Island on Friday the 4th of September. Morning will see a clean 6.6 ft SW swell with a 14-second period. The energy is strong at 1510. But the key is the wind: a glassy offshore breeze from the E at only 6 mph. It will be absolutely clean. This is a proper session for advanced surfers.

Saturday the 5th of September gets messy again with fresh onshore wind and rain spoiling a solid 7.2 ft swell. Sunday the 6th of September is a full-on washout with 9.8 ft SW swell, but it’s getting thrashed by a strong breeze from the W at 22 mph, gusting to 28 mph. That’s for extreme experts only, if anyone.

Things clean up a bit by Tuesday the 8th of September with a smaller 4.9 ft swell and a cross-off wind from the SSE at 9 mph. The energy is moderate at 758. It’s marginal but clean.

Now for the second standout, and it’s a beauty. The Island on Wednesday the 9th of September. Morning brings a clean 4.3 ft SW groundswell with a 16-second period. The energy is moderate at 793. But the wind is a gentle offshore from the E at 9 mph, making it a truly fantastic morning for the experienced surfer. It's glassy and clean.

Thursday the 10th of September morning is also excellent for experienced surfers, with 4.9 ft SW swell and a 16-second period. The energy is strong at 1131, and the wind is a gentle cross-off from the ENE at 9 mph. Clean waves.

Finally, we round out with Friday the 11th of September. The afternoon is where it’s at. We have a 6.9 ft SW swell, a 16-second period, and the combined energy is strong at 2247. The wind? Dead calm. Glassy as a lake. This is an epic setup, but the size means it’s for the experts only.

Saturday the 12th of September sees a massive 8.2 ft SW swell with a long 17-second period and the combined energy roaring up to 3751. The wind is a cross-off from the NNE at 16 mph in the morning, keeping it clean. This is a huge, powerful swell, only for the most experienced. The afternoon sees it drop slightly to 7.9 ft with a light cross-on from the NW.

So, if you’re an experienced surfer, mark your calendar for the morning of Friday the 4th of September and the morning of Wednesday the 9th of September. Those are the two true standouts with clean conditions and solid energy.

Rust

Short Range Forecast

Mostly dry. Warm (max 23°C on Fri afternoon, min 15°C on Sun morning). Wind will be generally light.

Days 4-6 Weather Summary

Mostly dry. Warm (max 21°C on Mon afternoon, min 12°C on Tue night). Winds increasing (light winds from the N on Mon afternoon, fresh winds from the N by Tue morning).

Friday
28
Saturday
29
Sunday
30
Monday
31
Tuesday
1
Wednesday
2
Thursday
3
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
3
4
3
2
2
2
2
3
4
3
3
3
0
0
0
0
0
3
0
0
3
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
1.7
SW
16
1.5
SW
16
1.3
SW
14
1.1
SW
14
0.9
SW
13
0.8
SW
13
0.6
SW
19
1.2
SW
19
1.3
SW
17
1.8
SW
19
1.8
SW
18
1.6
SW
16
1.3
SW
16
0.9
SW
17
1.3
SW
16
1.5
SW
16
1.6
SW
14
1.6
SW
14
1.5
SW
14
1.6
SW
14
1.8
SW
14
Wave Graph
Metric surfscale
Energy kJ
1504
1101
676
440
290
196
248
1005
1038
2146
1880
1225
886
482
813
1055
1063
938
874
938
1169
Wind (km/h)
20
NE
15
NE
15
E
15
E
15
SE
20
E
20
E
20
SSE
20
E
20
NNE
10
N
20
NNE
35
N
25
WNW
20
SSW
20
WSW
20
W
10
NNE
35
NNW
25
WNW
15
S
Wind State
cross-off
cross-off
off
off
cross-off
off
off
cross-off
off
cross-off
cross
cross-off
cross
on
cross-on
on
on
cross-off
cross-on
on
cross
High Tide
12:18PM0.00m
1:57PM0.00m
3:31PM0.00m
5:12PM0.00m
7:05PM0.00m
9:06PM0.00m
11:01PM0.00m
Low Tide
1:09AM-0.00m
2:44AM-0.00m
4:20AM-0.00m
6:07AM-0.00m
8:05AM-0.00m
10:05AM-0.00m
cloud
part cloud
part cloud
clear
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
part cloud
part cloud
part cloud
clear
part cloud
light rain
clear
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:56
6:54
6:54
6:52
6:52
6:50
6:48
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:12
6:13
6:14
6:14
6:15
6:15
6:15
 mm
1
Temp °C
20
23
22
20
22
19
19
19
19
19
21
21
21
21
14
13
13
13
17
17
15
Feels °C
16
20
18
17
18
14
17
15
13
14
17
16
15
15
11
9
8
10
10
14
13
  • Map Icons:
  • Break
  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
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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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