The Island Surf Break

Lat Long: 33.05° S 134.17° E

The Island Surf Forecast and Surf Report

Issued: 2 am 02 Sep 2026 (local time)

Forecast update in  hr  min

Today's The Island sea temperature is
15.4°C
0.1° 

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 2 Sep 2026:

  • Best quality surf: Thursday 3 Sep, 9PM (local time) - 7ft (2.2m), 15s period, SW swell with offshore winds.
  • Most powerful swell: Wednesday 9 Sep, 9AM (local time) - 8ft (2.5m), 17s period, SSW swell with 4,273 kJ wave energy.
  • Next surfable swell (1★+): Thursday 3 Sep, 9PM (local time) - 7ft (2.2m), 15s 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 (Sep 03) at 9PM. The primary swell is predicted to be 2.2m and 15s period with a secondary swell of 0.2m and 16s. The wind is predicted to be offshore as the swell arrives.

The most powerful waves expected at The Island in the next 16 days are 2.5m 17s and forecast to arrive on Wednesday (Sep 09) 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 1.5m 5s period and expected on Monday (Sep 07) at 12AM.

Wave TypeTime (ACST) & Date Wave Height & Period
Next good surf (1 star+) 9PM (Thu 3rd Sep)7ft (2.2m) 15s
Best Surf 9PM (Thu 3rd Sep)7ft (2.2m) 15s
Most Powerful 9AM (Wed 9th Sep)8ft (2.5m) 17s

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


The Lowdown

G’day, I’m Rusty. Let’s have a look at what’s coming down the line.

Alright, the next couple of weeks at The Island (reef break) are a bit of a mixed bag, but there are a couple of absolute gems to get excited about. The water temp is sitting at 60°F – right on the money for this time of year, nothing unusual there.

We’ve got a solid SW groundswell running through the first week, but the wind is going to mess with it a lot. Wednesday the 2nd kicks off with a clean-ish morning – 5ft of SW swell with a very long 16-second period, and a light breeze. The combined energy is strong (1270). It’s not perfect, but it’s a start. By the afternoon, the wind swings onshore and picks up, so that session is out.

Thursday the 3rd is a write-off – cross-onshore wind and lumpy conditions on a 6ft to 7ft SW swell. Friday the 4th and Saturday the 5th look even worse with fresh cross-shore and cross-onshore winds making a mess of a decent-sized 7ft to 8ft SW swell. That’s a lot of energy (2265 and 2290) but not for paddling – more like kite surfing conditions if you’re into that.

We get a window on Sunday the 6th. The morning sees a clean 6ft SW swell with a 14-second period and a cross-offshore breeze. The afternoon cleans up even more – 5ft SW swell, 14-second period, light breeze, and a ‘very good’ call. The energy drops to a moderate 982, but it’ll be fun and clean. That’s a solid option.

Monday the 7th drops right off – tiny 2ft SW swell, not worth the paddle. Tuesday the 8th sees the swell return to 6ft with a long 17-second period, but it’s a fresh cross-offshore breeze. It’s clean but the score isn’t high. Still, a 6ft groundswell at a reef is worth a look if you’re keen.

Now, the standout for the first half is Wednesday the 9th. The afternoon session is the pick: 8ft SSW swell with a very long 17-second period, a fresh offshore wind, and the combined energy is pumping at 4222. That’s a proper groundswell – the reef will love it, and the offshore wind will keep it glassy. This is for experienced surfers only – 8ft is getting up there. The morning is also solid but the afternoon is cleaner.

Thursday the 10th still has a good 7ft SW swell with a 16-second period and offshore winds in the morning. It’s clean and solid, but not quite the peak of Wednesday.

Then we hit a flat spell. Friday the 11th through to Saturday the 12th is poor – dropping swell and onshore or cross-onshore winds. A couple of days of nothing much.

Sunday the 13th and Monday the 14th bring back some hope. Both mornings see 5ft and 4ft SW swells with 16-second and 15-second periods, light offshore breezes, and ‘excellent’ calls. The energy is moderate (1114 and 1084) but clean. These are good sessions for experienced surfers on a reef setup – long period swell can be a bit straight at beach breaks, but here it’ll wrap in nicely.

Tuesday the 15th is a write-off with cross-onshore wind and lumpy conditions. Wednesday the 16th is clean but windy and only 5ft – not bad, but not a standout.

Now, the big one. Thursday the 17th. The morning is exceptional – 10ft SW swell with an 18-second period, light offshore wind, and a massive 5021 combined energy. This is expert-only territory – 10ft is serious size, and the long period will make it powerful. The afternoon drops to 8ft with a cross-shore wind, but still solid. If you’re an experienced surfer, this is the one to aim for. It’s 16 days out, so keep an eye on it – long-range calls are promising but not locked in.

Best of the lot: Wednesday 9th afternoon for the combo of size, wind, and energy, and Sunday 13th morning for cleaner but smaller conditions. The 17th is the wildcard if it holds.

Stay safe, keep an eye on the wind, and I’ll see you in the water.

Rusty.

Short Range Forecast

Light rain (total 4mm), mostly falling on Thu night. Warm (max 20°C on Fri morning, min 12°C on Wed morning). Winds increasing (light winds from the S on Thu afternoon, strong winds from the WSW by Fri night).

Days 4-6 Weather Summary

Heavy rain (total 23mm), heaviest during Mon morning. Very mild (max 18°C on Sun afternoon, min 10°C on Sat night). Winds increasing (calm on Sat night, strong winds from the ESE by Sun night).

Wednesday
2
Thursday
3
Friday
4
Saturday
5
Sunday
6
Monday
7
Tuesday
8
AM
PM
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
2
4
1
0
0
0
1
4
3
3
0
0
2
2
2
1
1
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
1.6
SW
16
1.7
SW
14
1.9
SW
14
1.8
SW
14
2
SW
14
2.3
SW
15
2.2
SW
15
2.1
SW
15
2.3
WSW
15
2.5
SW
13
2.4
SW
14
2.3
SW
14
1.8
SW
14
1.6
SW
14
1.1
SW
13
0.7
SW
13
0.6
SW
21
1.3
SW
18
1.8
SW
17
1.7
SW
16
1.6
SW
16
Wave Graph
Metric surfscale
Energy kJ
1265
1196
1480
1325
1558
2259
2237
1932
2368
2275
2197
1975
1344
978
392
171
271
1215
1949
1492
1297
Wind (km/h)
10
WSW
25
W
20
W
15
WNW
15
WNW
20
ENE
35
N
25
NW
40
W
30
WSW
20
SW
10
NE
20
ENE
15
SSE
40
SE
30
ESE
35
E
30
ESE
35
SE
35
SSE
40
SE
Wind State
on
on
on
cross-on
on
off
cross
cross-on
on
cross-on
cross-on
cross-off
cross-off
cross-off
cross-off
cross-off
off
cross-off
cross-off
cross-off
cross-off
High Tide
9:06PM0.00m
11:01PM0.00m
00:45AM0.00m
2:23AM0.00m
4:06AM0.00m
6:00AM0.00m
Low Tide
10:05AM-0.00m
11:54AM-0.00m
1:33PM-0.00m
3:13PM-0.00m
5:01PM-0.00m
7:01PM-0.00m
clear
cloud
clear
clear
clear
rain showers
light rain
light rain
clear
cloud
clear
clear
clear
part cloud
light rain
heavy rain
light rain
rain showers
rain showers
part cloud
rain showers
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:50
6:48
6:48
6:47
6:45
6:43
6:43
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:15
6:15
6:16
6:17
6:17
6:19
6:19
 mm
1
2
1
3
17
2
1
1
4
Temp °C
13
14
15
15
15
15
20
19
16
13
13
12
17
18
14
12
15
14
17
20
15
Feels °C
8
8
9
13
13
13
15
15
9
7
9
11
14
15
7
6
11
8
12
14
8
  • 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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