The Island Surf Break

Lat Long: 33.05° S 134.17° E

The Island Surf Forecast and Surf Report

Issued: 8 am 06 Aug 2026 (local time)

Forecast update in  hr  min

Today's The Island sea temperature is
15.1° 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 6 Aug 2026:

  • Best quality surf: Thursday 6 Aug, 3PM (local time) - 5ft (1.6m), 16s period, SW swell with cross-offshore winds.
  • Most powerful swell: Monday 10 Aug, 3AM (local time) - 11ft (3.5m), 18s period, SW swell with 7,956 kJ wave energy.
  • Next surfable swell (1★+): Thursday 6 Aug, 3PM (local time) - 5ft (1.6m), 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 Thursday (Aug 06) at 3PM. The primary swell is predicted to be 1.6m 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 3.5m 18s and forecast to arrive on Monday (Aug 10) at 3AM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.7m 4s period and expected on Friday (Aug 07) at 6AM.

Wave TypeTime (ACST) & Date Wave Height & Period
Next good surf (1 star+) 3PM (Thu 6th Aug)5ft (1.6m) 16s
Best Surf 3PM (Thu 6th Aug)5ft (1.6m) 16s
Most Powerful 3AM (Mon 10th Aug)11ft (3.5m) 18s

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


The Lowdown

Alright, lads, Rusty here. Let's have a squiz at the next couple of weeks for The Island.

We've got some cracking waves straight away, but then the ocean's going to turn into a washing machine for a while before it cleans back up. The first two days are rippers, then a big SW groundswell meets some serious wind, and it's game over for a bit. We'll ride out the storm and the second week has a couple of quality windows.

Right now, on Thursday morning, it's already cooking. A clean 4ft of SW groundswell, with a very long 16-second period, and light cross-off winds. The water's at 59°F, which is about average for this time of year. The wave energy is moderate at 924. A clean, classic start. The afternoon swell bumps to 5ft, still with that clean cross-off breeze, and the energy goes up to 1230. This is the time to be out if you're experienced; it's going to be firing.

Friday morning, the swell kicks up to 6ft, but the wind swings around to a fresh northerly cross-shore at 19 mph. It's going to get lumpy and confused (energy 1679), not the one. The afternoon stays blown-out with a 6ft south-west swell and a moderate cross-shore (1703). Not worth the paddle.

Saturday, more of the same—5ft of swell but that fresh cross-shore wind keeps it messy (1178). The afternoon looks poor with rain showers moving in. The swell holds at 5ft but the wind goes onshore, making it a write-off. Sunday, it gets serious. A 10ft SW swell rolls in, but with near-gale force cross-onshore winds at 34 mph. That's a hard no, total close-out territory (energy 3650). All that power, just blown to bits. Monday and Tuesday are still grim, with strong onshore winds and sloppy, big surf in the 8–10ft range. Energy readings are high, over 3000, but it’s all for nothing. Wednesday stays in that same vein—strong winds, big, messy surf (energy up around 4865). All power, no polish.

We get a bit of relief on Thursday, the 14th. The winds drop right out, leaving the 8-8ft SW groundswell (17s period) with just a light onshore puff. The energy is still significant (3155), but the morning looks like it might have some shape, despite the marginal call.

Friday, the 15th, hold onto your boards, this is the standout. The wind goes light cross-off, it's clear, and we've got a clean 6ft of SW groundswell (16s) with energy at 1784. These are the best conditions we've seen since the start. The late afternoon still looks clean with 6ft waves. This is your session if you're experienced and want proper waves without the storm. The Island is a consistent reef break, so it handles this kind of swell well.

Saturday the 16th, there's still a fun 5ft SW groundswell with light cross-off winds in the morning. Good waves, but a bit smaller (energy 980). The afternoon drops off quickly as the wind turns onshore.

After that, the next week weakens out. Sunday the 17th turns to junk—a fresh cross-shore and smaller swell, write it off. Monday the 18th is a light cross-onshore with 5-6ft of SW swell. Just marginal, onshore and a bit lumpy. We get another cleaner window on Tuesday the 19th morning, a clean 6ft cross-off with a moderate breeze. It's surfable but not as crisp. Wednesday the 20th, the swell dips a bit but there's still some energy there.

Now, for the real long-range gem. Thursday the 21st of August, the conditions line up again. We get a gentle offshore ESE wind, and clean 5ft of SW groundswell (16s) with energy at 1369. This looks like another proper standout morning. It's a week and a half out, so call it promising rather than locked in, but all the signs point to clean lines.

So, to cut the chase: Thursday morning and that Friday the 15th look the absolute best. That first Friday is your heavy-swell day with clean lines. And the 21st is the one to keep an eye on, but it’s long range.

Keep it salty.

Rusty

Short Range Forecast

Moderate rain (total 14mm), heaviest on Sat night. Very mild (max 18°C on Sat afternoon, min 12°C on Sat night). Winds increasing (light winds from the SSE on Thu morning, strong winds from the WSW by Sat night).

Days 4-6 Weather Summary

Moderate rain (total 15mm), heaviest on Sun morning. Very mild (max 15°C on Mon afternoon, min 11°C on Tue afternoon). Winds decreasing (near gales from the WSW on Sun morning, light winds from the NNW by Mon afternoon).

Thursday
6
Friday
7
Saturday
8
Sunday
9
Monday
10
Tuesday
11
Wednesday
12
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
1
2
0
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
1.2
SW
16
1.6
SW
16
2
SW
16
1.8
SW
16
1.7
SW
17
1.6
SW
16
1.6
SW
16
1.6
SW
15
1.4
SW
14
3
SW
15
3
SW
14
2.5
SW
18
2.5
SW
17
2.4
SW
16
1.9
SW
15
2.4
W
14
3
WSW
13
3
SW
18
3
WSW
18
3
SW
17
3
SW
17
Wave Graph
Metric surfscale
Energy kJ
728
1225
1904
1651
1697
1256
1164
1034
821
3650
3324
4434
3674
2992
1716
2229
2682
5489
4865
4579
4518
Wind (km/h)
10
SSE
10
SSE
15
ENE
30
N
20
N
35
NNW
30
N
25
WNW
30
WNW
55
WSW
55
WSW
25
W
40
NW
30
NW
40
N
40
NW
55
WNW
50
WSW
55
W
50
SW
35
SSW
Wind State
cross-off
cross-off
cross-off
cross
cross
cross
cross
on
cross-on
cross-on
cross-on
on
cross-on
cross-on
cross
cross-on
on
cross-on
on
cross-on
cross-on
High Tide
11:43PM0.00m
1:32AM0.00m
3:11AM0.00m
4:48AM0.00m
6:33AM0.00m
8:31AM0.00m
Low Tide
10:45AM-0.00m
12:40PM-0.00m
2:23PM-0.00m
4:00PM-0.00m
5:39PM-0.00m
7:32PM-0.00m
9:31PM-0.00m
clear
clear
part cloud
part cloud
rain showers
rain showers
rain showers
rain showers
rain showers
thunderstorm
rain showers
part cloud
rain showers
clear
clear
rain showers
rain showers
rain showers
clear
part cloud
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
7:20
7:18
7:18
7:18
7:16
7:16
7:15
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
5:58
5:58
5:59
6:00
6:00
6:00
6:01
 mm
2
1
1
1
9
3
2
1
1
3
5
Temp °C
14
14
15
16
17
17
17
18
16
12
13
14
14
15
15
14
13
13
14
13
13
Feels °C
12
12
10
10
13
10
12
13
12
0
1
8
7
11
8
5
1
2
4
2
4
  • 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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