The Island Surf Break

Lat Long: 33.05° S 134.17° E

The Island Surf Forecast and Surf Report

Issued: 8 am 08 Sep 2026 (local time)

Forecast update in  hr  min

Today's The Island sea temperature is
15.1°C
0.4° 

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 8 Sep 2026:

  • Best quality surf: Thursday 10 Sep, 12PM (local time) - 6ft (1.9m), 16s period, SW swell with offshore winds.
  • Most powerful swell: Wednesday 9 Sep, 12PM (local time) - 8ft (2.5m), 18s period, SW swell with 3,927 kJ wave energy.
  • Next surfable swell (1★+): Thursday 10 Sep, 12PM (local time) - 6ft (1.9m), 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 (Sep 10) at 12PM. The primary swell is predicted to be 1.9m and 16s period. 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 18s and forecast to arrive on Wednesday (Sep 09) at 12PM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.3m 6s period and expected on Wednesday (Sep 09) at 6AM.

Wave TypeTime (ACST) & Date Wave Height & Period
Next good surf (1 star+)12PM (Thu 10th Sep)6ft (1.9m) 16s
Best Surf12PM (Thu 10th Sep)6ft (1.9m) 16s
Most Powerful12PM (Wed 9th Sep)8ft (2.5m) 18s

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


The Lowdown

Alright folks, Rusty here with a look at what we’ve got coming down the pike. It’s a solid run, but you’ve gotta be patient and pick your moments. The Island is the only game in town this stretch, and it’s got the goods for those who can handle it, but the wind’s gonna be a joker in the pack.

First up, Tuesday the 8th. We’re looking at a decent start. Morning session is the go: a clean 6-foot SW swell with a very long 17-second period. That’s a proper groundswell, loads of energy (1801) and the ESE breeze is light, holding it clean. This is prime for experienced surfers only – the reef will be working, but with that period, expect long, lined-up waves. The water temp is 59°, which is about bang on average for this time of year. The afternoon gets messy though – wind swings to the SSE and howls to 25 km/h, turning conditions marginal. It’s a Tuesday, so fewer people, but this break can get crowds.

Wednesday the 9th is a write-off for quality. That strong breeze (25 mph) from the SE is going to chop things up badly, even with the swell pushing 7 to 8 feet. The energy is massive (3027 to 3753), but it’s a battle, not a surf. Leave it.

Things clean up Thursday the 10th morning. A crisp offshore breeze from the East at 19 mph and a solid 6-foot SW swell (16 seconds, 1838 energy). That’s fresh-offshore and clean. The waves will have some punch, but it’s still a reef break and 6 feet is on the bigger side for all but the advanced crew. The afternoon goes cross-off, but still workable.

Friday the 11th is a sweet little highlight. The swell drops a bit to 4 feet, but the period stays at a very long 15 seconds. The big story is the morning: Sunday? No, Friday afternoon – glassy as a mirror. SE wind at only 3 mph. That’s just you and the ocean. The energy (753) is moderate, but for a clean, glassy 4-foot wave on a long-period SW swell, The Island will be offering up quality rights. This is one of the true standout sessions.

From Saturday the 12th through Monday the 14th, we get a big lull. Swell drops to 4 feet or even 3 feet, and the wind gets ugly – cross-shore and cross-on, lumpy and choppy. The energy drops into the low hundreds. Not worth paddling for, honestly. There’s a clean-ish window Monday morning with only 3 feet and gentle breeze, but it’s small.

Tuesday the 15th sees the swell start to rebuild, but the wind is still fresh and cross-off, keeping it messy. The 4 to 5-foot range with 14-second period is okay, but not a standout.

Now, here’s where it gets good again. Wednesday the 16th morning. A fresh offshore breeze from the East, 6-foot SW groundswell with a 16-second period, and strong energy (1577). That’s excellent surf for experienced surfers. The lineup will be powerful. This is a serious stand-out for the second week.

After that, the wind turns cranky again from Thursday the 17th to Saturday the 19th. Cross-shore winds and lumpy conditions ruin what could be good swell pulses. The swell hits 7 feet again on Saturday the 19th afternoon, but it’s light cross-shore, so it might be okay, but not the best.

Then we roll into Monday the 21st. This is the big one. The morning is clean with a gentle cross-off, 6-foot SW swell, 16-second period, and 1924 energy. But it’s the afternoon that’s the true standout: gentle SSE breeze, clean, 7-foot SW swell, 16 seconds, and 2081 energy. That is a phenomenal combination. This is advanced territory, but the quality will be as good as it gets. Mark Monday the 21st afternoon on your calendar.

Wednesday the 23rd morning also looks cracking on paper: rain showers clearing to light SE cross-off, a solid 8 feet of SW groundswell (16 seconds) and massive energy (3141). That’s big for the experts, and the conditions are clean. If you’re charging, get on it.

So, bottom line: Friday the 11th afternoon for the glassy, smaller session, Wednesday the 16th morning for offshore power, and Monday the 21st afternoon for the best all-round quality of the forecast. The rest is either windy or a bit too small.

Rusty.

Short Range Forecast

Some drizzle, heaviest during Tue night. Very mild (max 19°C on Thu afternoon, min 9°C on Wed night). Winds increasing (light winds from the ESE on Tue morning, strong winds from the SE by Wed morning).

Days 4-6 Weather Summary

Mostly dry. Warm (max 25°C on Sat afternoon, min 14°C on Fri morning). Winds increasing (calm on Fri afternoon, fresh winds from the N by Sun morning).

Tuesday
8
Wednesday
9
Thursday
10
Friday
11
Saturday
12
Sunday
13
Monday
14
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
4
2
2
2
2
2
3
3
2
2
3
2
1
1
2
0
0
1
2
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)
1.8
SW
17
1.8
SW
16
1.8
SW
16
2.1
SW
19
2.5
SW
18
2.1
SW
16
1.9
SW
16
1.8
SW
16
1.4
SW
15
1.3
SW
15
1.3
SW
15
1.3
SW
16
1.1
SW
15
1.1
SW
16
1.2
SW
18
1.1
SW
16
1.1
SW
16
0.9
SW
15
0.8
SW
14
0.8
SW
14
0.6
SW
16
Wave Graph
Metric surfscale
Energy kJ
1795
1611
1552
2949
3753
2316
1809
1513
859
686
753
909
512
532
871
661
565
360
241
231
208
Wind (km/h)
5
ESE
25
SSE
30
SE
40
SE
40
SE
35
ESE
30
E
15
ESE
30
E
20
NE
5
SE
20
NE
30
NNE
20
N
25
NNE
30
N
15
SSW
15
SE
15
SSE
25
SSE
30
SE
Wind State
cross-off
cross-off
cross-off
cross-off
cross-off
off
off
cross-off
off
cross-off
glassy
cross-off
cross-off
cross
cross-off
cross
cross-on
cross-off
cross-off
cross-off
cross-off
High Tide
8:01AM0.00m
9:54AM0.00m
11:33AM0.00m
1:05PM0.00m
2:42PM0.00m
4:38PM0.00m
Low Tide
7:01PM-0.00m
9:00PM-0.00m
10:44PM-0.00m
00:19AM-0.00m
1:52AM-0.00m
3:38AM-0.00m
cloud
cloud
light rain
part cloud
part cloud
clear
part cloud
cloud
part cloud
part cloud
part cloud
clear
clear
clear
part cloud
clear
clear
part cloud
part cloud
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:43
6:41
6:39
6:39
6:37
6:35
6:35
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:19
6:20
6:21
6:21
6:22
6:22
6:22
 mm
1
Temp °C
14
13
13
14
15
11
14
19
17
18
20
21
22
25
25
23
20
18
18
16
13
Feels °C
12
8
7
6
6
3
8
14
11
14
17
15
15
20
20
18
17
16
14
11
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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