The Island Surf Break

Lat Long: 33.05° S 134.17° E

The Island Surf Forecast and Surf Report

Issued: 8 am 03 Aug 2026 (local time)

Forecast update in  hr  min

Today's The Island sea temperature is
15.2° 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 3 Aug 2026:

  • Best quality surf: Monday 3 Aug, 9PM (local time) - 5ft (1.6m), 13s period, SW swell with cross-offshore winds.
  • Most powerful swell: Sunday 9 Aug, 6PM (local time) - 10ft (3.0m), 17s period, SW swell with 4,589 kJ wave energy.
  • Next surfable swell (1★+): Monday 3 Aug, 9PM (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 9PM. 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 3.0m 17s and forecast to arrive on Sunday (Aug 09) at 6PM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.9m 4s period and expected on Friday (Aug 07) at 3AM.

Wave TypeTime (ACST) & Date Wave Height & Period
Next good surf (1 star+) 9PM (Mon 3rd Aug)5ft (1.6m) 13s
Best Surf 9PM (Mon 3rd Aug)5ft (1.6m) 13s
Most Powerful 6PM (Sun 9th Aug)10ft (3.0m) 17s

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


The Lowdown

Alright folks, Rusty here. Let’s get into it.

The Island is the only spot on the radar for this 16-day run, and it’s a classic reef setup that’s exposed to the SW. The water’s sitting at 59°, which is pretty much where you’d expect it for this time of year, nothing wild there.

Right off the bat, Monday the 3rd of August isn’t a total write-off, but it’s not firing. We’ve got a 7ft SW swell with a long 14-second period, so there’s plenty of energy in the water (1606), but the wind is a cross-shore mess. It’s cleanable, but not the best. The afternoon drops to 6ft with the same long period, but the wind goes cross-onshore, so it’s a bit choppy.

Tuesday the 4th is where things start to look better. The morning has a 4ft SW swell, period drops to 12 seconds, but the wind is a nice cross-offshore, and the energy is moderate (611). It’s clean. But the real standout is Tuesday afternoon: glassy conditions, 4ft SW swell, and a 14-second period. The energy is still moderate (601), but with zero wind, this is going to be silky smooth. This is the best window of the first week. Small but perfect.

Wednesday the 5th is a write-off. Strong northerly winds and a messy cross-chop ruin the 3ft to 4ft swell. Not worth paddling out.

Thursday the 6th morning is a solid call. Clean offshore wind, 4ft SW swell with a 16-second period, and the energy is building (905). Good shape, good conditions. The afternoon goes cross-shore, but still rideable.

Friday the 7th morning has a bit more size at 6ft, but the wind is a fresh cross-offshore, so it’s clean but a bit lumpy. The afternoon gets blown out by strong NNW winds.

The weekend and into the start of the next week is a write-off. From Saturday the 8th through to Monday the 10th, we’ve got strong to gale-force winds from the north and west, with messy cross-onshore chop. The swell pumps up to 8ft, but it’s a total mess. The energy is huge (over 3000), but it’s not for surfing. For a reef setup with this much wind and swell, this looks more like a kite session than a paddle session.

Tuesday the 11th is still blown out, and by Wednesday the 12th, the swell hits 10ft with a massive 18-second period and energy at 4646. That’s a lot of water moving, but the cross-onshore wind ruins it. Only for the hardcore, and even then, it’s sketchy.

The second week starts to clean up around Thursday the 15th of August. The morning is clean with a cross-offshore wind, but the swell is only 3ft with a long 18-second period. Low energy (921), but clean. The afternoon jumps to 6ft, but the wind gets strong and lumpy.

Now, the true standout of the whole forecast comes on Sunday the 16th of August. Morning session: clean cross-offshore wind, 5ft SW swell with a 15-second period, and moderate energy (1053). The conditions are described as excellent for experienced surfers. This is the one to circle on your calendar. The afternoon is also clean but a bit more wind.

Monday the 17th of August morning is another belter. Offshore wind, 8ft SW swell, 16-second period, and energy is strong (2734). This is big, powerful, and clean. Only for experienced surfers, but it’s going to be pumping.

Finally, Tuesday the 18th of August morning is a great way to finish the run. Very light wind, clean, 6ft SW swell with a 16-second period, and solid energy (1777). Excellent conditions for experienced surfers.

So, to sum it up: the first week is a slow start with a few clean windows, but the real standout is Sunday the 16th and Monday the 17th of August. That’s the best surf on offer. The Island is a consistent reef, but it can get crowded sometimes, so get in early on those good days.

Rusty.

Short Range Forecast

Mostly dry. Very mild (max 16°C on Wed morning, min 10°C on Tue morning). Wind will be generally light.

Days 4-6 Weather Summary

Moderate rain (total 19mm), heaviest on Sat morning. Very mild (max 19°C on Fri morning, min 11°C on Sat night). Winds increasing (calm on Thu morning, gales from the WSW by Sat night).

Monday
3
Tuesday
4
Wednesday
5
Thursday
6
Friday
7
Saturday
8
Sunday
9
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
2
3
2
3
2
0
0
3
3
3
4
2
0
2
0
0
0
0
0
2
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
2
SW
14
1.8
SW
14
1.4
SW
13
1.1
SW
12
1.1
SW
14
0.9
SW
14
0.8
SW
19
1.1
SW
18
1.2
SW
16
1.2
SW
16
1.4
SW
16
1.9
SW
16
1.8
SW
16
1.6
SW
17
1.6
SW
16
1.5
SW
16
2
WSW
15
2.5
WSW
15
2.5
WSW
14
2.5
SW
16
2.5
SW
17
Wave Graph
Metric surfscale
Energy kJ
1602
1152
673
380
528
346
441
786
746
719
1027
1761
1651
1542
1287
1068
1682
2917
3023
3855
4137
Wind (km/h)
15
SSW
10
SSW
10
ESE
15
NE
5
WNW
20
NE
25
N
20
NW
0
N
10
ENE
10
SSW
15
ENE
30
NNE
35
NNW
35
N
45
N
45
WNW
65
WSW
40
WSW
25
WSW
20
W
Wind State
cross
cross-on
off
cross-off
glassy
cross-off
cross
cross-on
glassy
off
cross
off
cross-off
cross-on
cross-off
cross
cross-on
cross-on
cross-on
cross-on
on
High Tide
5:59PM0.00m
7:46PM0.00m
9:44PM0.00m
11:43PM0.00m
1:32AM0.00m
3:11AM0.00m
Low Tide
6:51AM-0.00m
8:44AM-0.00m
10:45AM-0.00m
12:40PM-0.00m
2:23PM-0.00m
4:00PM-0.00m
clear
clear
clear
clear
clear
part cloud
part cloud
part cloud
clear
clear
clear
clear
part cloud
cloud
light rain
mod rain
rain showers
rain showers
part cloud
cloud
rain showers
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
7:22
7:22
7:20
7:20
7:18
7:18
7:18
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
5:55
5:55
5:57
5:58
5:58
5:59
6:00
 mm
2
8
6
3
1
Temp °C
13
13
12
13
14
15
16
16
15
16
16
17
19
19
18
13
17
13
13
14
14
Feels °C
10
10
9
10
12
10
9
10
13
14
13
11
11
11
9
5
9
2
4
9
9
  • Map Icons:
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  • 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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