The Island Surf Break

Lat Long: 33.05° S 134.17° E

The Island Surf Forecast and Surf Report

Issued: 8 pm 04 Aug 2026 (local time)

Forecast update in  hr  min

Today's The Island sea temperature is
15.2° C
0.5° 

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 4 Aug 2026:

  • Best quality surf: Thursday 6 Aug, 3PM (local time) - 5ft (1.5m), 16s period, SW swell with cross-offshore winds.
  • Most powerful swell: Tuesday 11 Aug, 12PM (local time) - 10ft (3.0m), 21s period, SW swell with 6,854 kJ wave energy.
  • Next surfable swell (1★+): Thursday 6 Aug, 9AM (local time) - 4ft (1.2m), 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 9AM. The primary swell is predicted to be 1.2m and 16s period with a secondary swell of 0.2m and 5s. 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 21s and forecast to arrive on Tuesday (Aug 11) at 12PM. Winds are predicted to be 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 3AM.

Wave TypeTime (ACST) & Date Wave Height & Period
Next good surf (1 star+) 9AM (Thu 6th Aug)4ft (1.2m) 16s
Best Surf 3PM (Thu 6th Aug)5ft (1.5m) 16s
Most Powerful12PM (Tue 11th Aug)10ft (3.0m) 21s

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


The Lowdown

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

Straight off the bat, we're looking at a solid run of swell for The Island, but it's not all clean sailing. The early part of the week is a write-off thanks to nasty winds, but once we hit Thursday the 6th, things start to turn on.

The Island's a reef break, so it handles a good swell direction, and it's getting fed by a consistent SW groundswell. The water temp is sitting about average for this time of year, so nothing unusual to report there.

Thursday the 6th is where it first gets interesting. The morning brings a clean 4ft of SW swell with a 16-second period, and a light offshore breeze. That's a lovely combo. The afternoon on Thursday is even better – the swell steps up to 5ft, the period holds at 16 seconds, and the combined energy is strong (1114). The wind is light and cross-offshore, so you're looking at clean, lined-up waves. This is a proper standout for experienced surfers. The Island can get busy though, so be prepared for a crowd.

Friday the 7th morning has a bigger 6ft swell, but a fresh cross-offshore breeze is going to keep it clean. The energy is up (1776), but the quality might be a bit more challenging. Friday afternoon goes downhill quick with the wind shifting onshore, so bag the morning session.

The weekend is a total mess. From Saturday the 8th through to Monday the 10th, we've got strong onshore winds and massive, blown-out swell. This is kite-surfing territory, not paddle surfing. The swell is over 8ft, and the wind is going to make it a washing machine. Save your energy.

The pattern starts to clean up again from Thursday the 13th. The morning shows a cross-shore breeze and a solid 8ft SW swell with an 18-second period. The energy is very high (4194), but the wind is light, so you'll get some decent but slightly lumpy waves. This is for the experienced crew only.

Now, the real highlight of the whole forecast. Friday the 14th morning. This is the one. We've got a 7ft SW groundswell, a 16-second period, and absolute glassy conditions. Zero wind. The energy is pumping (2112), and the waves will be clean, steep, and powerful. This is a dream session for advanced surfers at The Island. The crowd will be there, but it'll be worth it.

Saturday the 15th morning is also excellent, with a clean 7ft swell and a cross-offshore breeze. Another top-tier session.

The final week sees a lot of marginal conditions with onshore or cross-shore winds, but the swell hangs around. Thursday the 20th morning is a late standout, with a clean 8ft SW groundswell, a 17-second period, and a light offshore breeze. The energy is strong (2988), and it'll be worth a paddle if you're around.

So, to wrap it up: The clear winners are Thursday the 6th afternoon, Friday the 14th morning, and Saturday the 15th morning. The Island is on, but it's for the experienced crew once the swell picks up. Be patient, wait for the clean windows, and you'll score.

Rusty.

Short Range Forecast

Light rain (total 5mm), mostly falling on Fri afternoon. Very mild (max 18°C on Fri morning, min 12°C on Wed morning). Winds increasing (light winds from the SE on Thu morning, fresh winds from the NNE by Fri morning).

Days 5-7 Weather Summary

Heavy rain (total 24mm), heaviest during Sat morning. Very mild (max 17°C on Fri night, min 11°C on Sat night). Winds increasing (moderate winds from the NNE on Fri night, gales from the WSW by Sun morning).

Wednesday
5
Thursday
6
Friday
7
Saturday
8
Sunday
9
Monday
10
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
2
0
0
2
3
4
3
2
0
3
0
1
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)
0.9
SW
14
0.8
SW
19
1.1
SW
18
1.2
SW
16
1.2
SW
16
1.5
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
WSW
10
3
WSW
13
2.5
WSW
18
2.5
WSW
17
3.5
SW
16
3
WSW
15
Wave Graph
Metric surfscale
Energy kJ
346
441
786
746
728
1109
1904
1750
1663
1256
1164
1034
833
1657
3010
4737
4273
5334
3427
Wind (km/h)
25
NE
20
NNW
15
NNW
10
SW
15
ESE
10
SSE
15
ENE
30
NNE
25
NW
25
NNE
45
NNW
35
N
45
W
60
WSW
50
WSW
35
W
40
WNW
45
WNW
40
WSW
Wind State
cross-off
cross-on
cross-on
cross-on
cross-off
cross-off
cross-off
cross-off
cross-on
cross-off
cross-on
cross
on
cross-on
cross-on
on
cross-on
cross-on
cross-on
High Tide
9:44PM0.00m
11:43PM0.00m
1:32AM0.00m
3:11AM0.00m
4:48AM0.00m
Low Tide
8:44AM-0.00m
10:45AM-0.00m
12:40PM-0.00m
2:23PM-0.00m
4:00PM-0.00m
5:39PM-0.00m
part cloud
light rain
part cloud
clear
part cloud
clear
clear
part cloud
light rain
light rain
light rain
light rain
mod rain
thunderstorm
light rain
rain showers
rain showers
clear
rain showers
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
7:20
7:20
7:18
7:18
7:18
7:16
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
5:57
5:58
5:58
5:59
6:00
6:00
 mm
2
3
3
4
4
7
2
1
1
2
3
Temp °C
16
13
16
16
15
15
16
18
15
17
15
15
15
12
13
14
14
14
14
Feels °C
11
9
14
14
15
13
12
11
9
10
7
9
8
-1
1
6
6
5
5
  • 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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