The Island Surf Break

Lat Long: 33.05° S 134.17° E

The Island Surf Forecast and Surf Report

Issued: 8 am 09 Aug 2026 (local time)

Forecast update in  hr  min

Today's The Island sea temperature is
15.3° C
0.3° 

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 9 Aug 2026:

  • Best quality surf: Friday 14 Aug, 6AM (local time) - 7ft (2.1m), 16s period, SW swell with glassy winds.
  • Most powerful swell: Sunday 9 Aug, 9PM (local time) - 10ft (3.0m), 19s period, SW swell with 5,732 kJ wave energy.
  • Next surfable swell (1★+): Friday 14 Aug, 6AM (local time) - 7ft (2.1m), 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 14) at 6AM. The primary swell is predicted to be 2.1m and 16s period with a secondary swell of 0.2m and 17s. The wind is predicted to be glassy as the swell arrives.

The most powerful waves expected at The Island in the next 16 days are 3.0m 19s and forecast to arrive on Sunday (Aug 09) at 9PM. Winds are predicted to be cross-onshore at the time the swell arrives.

Wave TypeTime (ACST) & Date Wave Height & Period
Next good surf (1 star+) 6AM (Fri 14th Aug)7ft (2.1m) 16s
Best Surf 6AM (Fri 14th Aug)7ft (2.1m) 16s
Most Powerful 9PM (Sun 9th Aug)10ft (3.0m) 19s

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


The Lowdown

Alright, Rusty here. Let’s talk about what’s coming up at The Island over the next couple of weeks. It’s a reef break that’s consistent and exposed to the southwest, so it picks up a lot of the ocean’s energy.

We’ve got a rough start, unfortunately. The first few days are pretty cooked. From Sunday the 9th through to Wednesday the 13th, you’re looking at poor, lumpy conditions with strong cross-onshore winds. The swell is there – Sunday morning has a solid 7.9ft SW groundswell with a very long 16-second period and combined energy of 2716 – but that 35 km/h cross-on wind is just ruining it. It's messy and blown out. This pattern holds for a few days, with the swell even peaking on Monday morning at 8.2ft from the SW with a massive 17-second period and energy of 3866, but again, the wind is bad. This is not for beginners anyway – over 8ft on a reef is strictly expert territory – but the conditions are just junk.

Things finally start to turn the corner on Thursday morning the 14th. The wind drops way down to a light breeze, and by the afternoon we get a proper glassy morning with zero wind. That’s the moment. The swell is a solid 6.9ft from the SW with a 16-second period and energy of 2196. This is where it gets interesting for experienced surfers. The morning of Friday the 15th is even cleaner – a light 10 km/h offshore wind from the east, clean waves at 5.9ft from the SW and 16-second swell. That’s a proper window.

The main standout here is the morning of Friday the 15th. Clean conditions, light offshore wind, 5.9ft groundswell with a long period, and excellent shape. The east wind is blowing offshore here, which is the optimum for this break. Crowds can be a thing, but on a Friday morning you might get a bit of a break. The water temp is right around 59.5°F, which is about normal for the time of year.

After that, the surf eases off but stays fun through the weekend and into the next week. Sunday the 16th has a moderate offshore breeze from the east and 4.3ft swell – clean but smaller. Monday the 17th is similar with light winds. The pick of the second week looks like Tuesday the 18th morning – clean, light offshore winds, and a very long 18-second period groundswell at 4.3ft, though the energy is moderate. That long period means the waves will have great shape and power for a point or reef like this, but you'll have to wait between sets. Crowds are possible here.

You’ll hit a few rough days again around Wednesday the 19th with fresh winds, but then look at Friday the 21st – a glassy morning with light east winds and a 5.6ft SW swell. That’s another clean session. The real bombshell comes at the very end of the outlook. The morning of Sunday the 23rd is glassy clean with offshore breeze and a solid 6.2ft SW groundswell at 16 seconds. Then Monday the 24th morning packs a punch – 8.2ft from the SW with a 16-second period and massive combined energy of 4626. But the wind is light and cross-offshore, so it’s clean. That Monday the 24th is the standout of the second week, but being over 8ft, it's for experts only. It’s a long way out, so keep an eye on the forecasts.

So, to wrap up: the first week is pretty grim until Friday the 15th. That Friday morning is your best bet early on. The second week has a few fun, clean mornings, but the big one to watch is Monday the 24th. Take it easy out there.

Short Range Forecast

Heavy rain (total 20mm), heaviest during Sun morning. Very mild (max 16°C on Tue afternoon, min 12°C on Sun morning). Winds decreasing (gales from the WSW on Sun afternoon, moderate winds from the WNW by Mon afternoon).

Days 4-6 Weather Summary

Mostly dry. Very mild (max 15°C on Thu morning, min 14°C on Wed morning). Winds decreasing (fresh winds from the SW on Wed afternoon, calm by Thu night).

Sunday
9
Monday
10
Tuesday
11
Wednesday
12
Thursday
13
Friday
14
Saturday
15
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
0
0
0
0
0
0
0
0
0
0
0
1
3
2
3
4
3
4
4
4
4
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
2.4
WSW
16
3
SW
11
3
SW
18
2.5
SW
17
2.3
SW
16
1.9
SW
16
1.6
SW
14
1.8
WSW
15
2.5
SW
17
2.5
SW
17
2.5
SW
17
2.3
SW
16
2.1
SW
15
2.1
SW
15
2
SW
15
2.1
SW
16
2
SW
16
1.9
SW
16
1.8
SW
16
1.8
SW
15
1.6
SW
14
Wave Graph
Metric surfscale
Energy kJ
2716
2248
5554
3859
2790
1776
1016
1581
4103
3727
3512
2516
2012
1808
1706
2166
2017
1787
1494
1456
998
Wind (km/h)
35
WSW
65
WSW
55
SW
30
WSW
25
W
30
NNW
35
NNW
35
NW
40
SW
30
WSW
30
SW
20
SW
10
SSW
15
WSW
10
S
0
SSE
10
S
10
ESE
10
E
10
SE
20
ESE
Wind State
cross-on
on
cross-on
cross-on
on
cross-on
cross
cross-on
cross-on
cross-on
cross-on
cross-on
cross
cross-on
cross
glassy
cross
cross-off
off
cross-off
off
High Tide
4:48AM0.00m
6:33AM0.00m
8:31AM0.00m
10:29AM0.00m
12:16PM0.00m
1:53PM0.00m
Low Tide
4:00PM-0.00m
5:39PM-0.00m
7:32PM-0.00m
9:31PM-0.00m
11:25PM-0.00m
1:05AM-0.00m
2:40AM-0.00m
mod rain
cloud
thunderstorm
cloud
cloud
cloud
cloud
light rain
rain showers
part cloud
part cloud
part cloud
cloud
cloud
part cloud
cloud
cloud
cloud
cloud
cloud
cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
7:18
7:16
7:16
7:15
7:13
7:13
7:11
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:00
6:00
6:00
6:01
6:01
6:02
6:04
 mm
10
4
2
4
Temp °C
13
13
14
13
13
14
15
16
13
14
14
14
15
14
15
15
15
15
14
14
14
Feels °C
1
0
5
7
7
9
6
9
5
7
8
10
13
11
12
13
13
11
11
11
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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