The Island Surf Break

Lat Long: 33.05° S 134.17° E

The Island Surf Forecast and Surf Report

Issued: 8 pm 03 Sep 2026 (local time)

Forecast update in  hr  min

Today's The Island sea temperature is
15.6°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 3 Sep 2026:

  • Best quality surf: Sunday 6 Sep, 3AM (local time) - 7ft (2.2m), 14s period, SW swell with glassy winds.
  • Most powerful swell: Wednesday 9 Sep, 12PM (local time) - 8ft (2.5m), 19s period, SW swell with 4,742 kJ wave energy.
  • Next surfable swell (1★+): Sunday 6 Sep, 3AM (local time) - 7ft (2.2m), 14s 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 Sunday (Sep 06) at 3AM. The primary swell is predicted to be 2.2m and 14s period with a secondary swell of 0.2m and 14s. 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 2.5m 19s 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 5s period and expected on Tuesday (Sep 08) at 6PM.

Wave TypeTime (ACST) & Date Wave Height & Period
Next good surf (1 star+) 3AM (Sun 6th Sep)7ft (2.2m) 14s
Best Surf 3AM (Sun 6th Sep)7ft (2.2m) 14s
Most Powerful12PM (Wed 9th Sep)8ft (2.5m) 19s

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


The Lowdown

Alright folks, Rusty here. Let’s chew the fat on the 16-day window for The Island. This is a solid reef break that needs a proper SW groundswell to fire, and we’ve got a real mixed bag on the cards.

We start off with a bit of a waiting game. The first few days are a total washout thanks to strong, nasty winds. Friday the 4th and Saturday the 5th show some size – around 7ft to 8ft from the SW – but the wind is howling cross-on and onshore, making it a lumpy, choppy mess. Not worth paddling out for.

Our first real glimmer comes on Sunday the 6th. The morning looks magic with clean conditions, a light cross-off breeze, and a solid 7ft SW groundswell (combined energy of 2066). This is a sweet spot for experienced surfers. The water is about average for this time of year, so no surprises. The afternoon is a bit smaller at 6ft and still clean, but the energy drops off (1151), so the morning is the pick of the day.

Monday the 7th is a transition day with smaller, cleaner waves around 3ft to 4ft, but the energy is low (360-751). It’s glassy but not much punch.

The standout of the entire forecast is Tuesday the 8th. The morning delivers a beautiful 7ft of SW groundswell with a very long 17-second period, combined with clean, moderate offshore winds from the east. The combined energy is pumping at 2299. This is a classic reef-swell setup – long-period groundswell will wrap in perfectly, offering powerful, well-shaped lines. This is the one to circle on the calendar. The afternoon is still clean but smaller and less consistent.

After that, things get messy again. Wednesday the 9th and Thursday the 10th have solid size (7ft to 8ft) and strong offshore winds, but the wind is blowing a near-gale (31 mph), making it hard to even paddle out, despite the clean look. Not ideal for a relaxing session.

The second week is a tale of two halves. The weekend of the 13th and 14th is completely blown out by strong onshore and cross-onshore winds – just forget it. The Island will be a washing machine. Monday the 15th is also a no-go with choppy, cross-on conditions.

But then, we get another promising window. Thursday the 17th and Friday the 18th are standouts. The 17th has a large 8ft SW groundswell (energy 4472) with clean, cross-off winds. It’s big, but for experts, it’s a beast. The 18th is even better for a top-end session: morning winds are light easterly offshore, the swell is 8ft from the SW with a 15-second period, and the energy is 2584. This will be a classic, clean, powerful reef day. The crowds are "sometimes" here, so you might have a few others out, but the quality will be worth it.

The final day, Saturday the 19th, is a nice smaller finisher at 5ft with glassy offshore conditions and very clean surf – a perfect end to the run.

So, to sum it up: the best bets are Tuesday the 8th and Friday the 18th for the big, clean, powerful groundswell sessions. Sunday the 6th morning is a solid runner-up.

Rusty out.

Short Range Forecast

Mostly dry. Warm (max 21°C on Fri morning, min 11°C on Sat night). Winds decreasing (strong winds from the W on Fri night, calm by Sat night).

Days 5-7 Weather Summary

Mostly dry. Very mild (max 14°C on Mon afternoon, min 11°C on Sun night). Winds increasing (light winds from the ESE on Tue morning, near gales from the SE by Wed afternoon).

Friday
4
Saturday
5
Sunday
6
Monday
7
Tuesday
8
Wednesday
9
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
4
1
0
0
0
0
3
4
3
1
2
2
4
4
3
1
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)
2.3
SW
15
2.2
SW
16
2.1
SW
15
1.9
SW
15
2.5
SW
14
2.3
SW
13
2.3
SW
14
2
SW
14
1.7
SW
14
1.2
SW
13
0.9
SW
13
1.2
SSW
13
1.5
SW
18
2
SW
17
1.6
SW
16
1.5
SW
16
2.1
SW
19
2.4
SW
19
2.5
SW
18
Wave Graph
Metric surfscale
Energy kJ
2259
2266
2075
1641
2670
1904
1919
1471
1147
503
286
482
1483
2293
1364
1082
3152
4091
3984
Wind (km/h)
20
ENE
40
NNE
25
WNW
30
W
40
WSW
25
SW
10
SSW
10
NE
20
SSE
35
SE
25
ESE
25
E
25
E
20
E
25
SSE
40
SSE
50
SE
50
SE
40
ESE
Wind State
off
cross-off
cross-on
on
cross-on
cross-on
cross-on
cross-off
cross-off
cross-off
off
off
off
off
cross-off
cross-off
cross-off
cross-off
cross-off
High Tide
11:01PM0.00m
00:45AM0.00m
2:23AM0.00m
4:06AM0.00m
6:00AM0.00m
8:01AM0.00m
Low Tide
11:54AM-0.00m
1:33PM-0.00m
3:13PM-0.00m
5:01PM-0.00m
7:01PM-0.00m
9:00PM-0.00m
part cloud
part cloud
cloud
clear
part cloud
part cloud
part cloud
clear
part cloud
cloud
cloud
cloud
cloud
cloud
cloud
cloud
cloud
part cloud
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:48
6:47
6:45
6:43
6:43
6:41
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:15
6:16
6:17
6:17
6:19
6:19
6:20
 mm
Temp °C
15
21
19
17
14
13
13
14
15
13
11
14
14
13
14
13
13
14
11
Feels °C
13
14
15
12
6
7
9
12
11
7
6
9
9
9
10
6
2
2
1
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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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