The Island Surf Break

Lat Long: 33.05° S 134.17° E

The Island Surf Forecast and Surf Report

Issued: 8 pm 11 Jul 2026 (local time)

Forecast update in  hr  min

Today's The Island sea temperature is
15.5° C
0.9° 

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 11 Jul 2026:

  • Best quality surf: Tuesday 14 Jul, 6PM (local time) - 7ft (2.2m), 16s period, SW swell with cross-offshore winds.
  • Most powerful swell: Tuesday 14 Jul, 6AM (local time) - 11ft (3.5m), 17s period, SW swell with 5,970 kJ wave energy.
  • Next surfable swell (1★+): Tuesday 14 Jul, 6PM (local time) - 7ft (2.2m), 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 Tuesday (Jul 14) at 6PM. The primary swell is predicted to be 2.2m and 16s period with a secondary swell of 0.2m and 16s. 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 3.5m 17s and forecast to arrive on Tuesday (Jul 14) at 6AM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.6m 3s period and expected on Saturday (Jul 18) at 12AM.

Wave TypeTime (ACST) & Date Wave Height & Period
Next good surf (1 star+) 6PM (Tue 14th Jul)7ft (2.2m) 16s
Best Surf 6PM (Tue 14th Jul)7ft (2.2m) 16s
Most Powerful 6AM (Tue 14th Jul)11ft (3.5m) 17s

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


Alright, let’s get into it. This is your local surf outlook from The Island, and I’m Rusty.

Right off the bat, we’ve got some serious size on the way, but the wind is going to be a battle for most of the run. The first few days are a write-off, honestly. We’re looking at Sunday the 12th and Monday the 13th with onshore winds from the west, blowing hard at 19 mph, and the swell is pumping at 7 ft to 8 ft from the SW. The energy is already high, with combined swell energy readings around 1374 to 3292, but it’s all blown out. Just a mess. Don’t bother.

Tuesday the 14th is still a struggle. The morning is cross-onshore with an 12 ft SW groundswell (period of 16 seconds) and a massive 8415 combined energy reading. That’s a lot of juice, but it’s choppy and ugly. The afternoon tries to get a little better with a cross-shore breeze, but it’s still only marginal.

Now, here’s where we get a standout. Wednesday morning the 15th is the first real window. The wind swings around to the east, light offshore at 6 mph, and we’ve got a clean 6 ft SW groundswell with a 15-second period. The combined energy is a solid 1326. The waves are going to be well-shaped, clean, and powerful. This is the best of the early run. The Island is a consistent reef break, exposed to the SW swell, and it’s going to light up. Just be aware that it’s an advanced wave, and it can get crowded – it’s an “sometimes” crowd spot, so expect company. The water temp is about average for the time of year, nothing unusual.

Thursday the 16th drops off a bit. The swell eases back to 4 ft, and it’s just marginal. Friday the 17th is similar, with a 5 ft swell but the wind is cross-off, keeping it clean. Still, it’s only a marginal call.

We hit a real dead zone from Saturday the 18th through to Tuesday the 22nd. The wind becomes a total pain, howling from the north at 22–25 mph on Saturday, with swell dropping to under 3 ft. The energy is weak (256 to 292). It’s a flat, blown-out mess. Sunday the 19th has a long-period 5 ft SW swell (19 seconds), but the wind is terrible. This stretch is a write-off for four days.

Things start to look interesting again on Wednesday the 23rd, especially the afternoon. The wind is light and cross-off from the NNE at 6 mph, and the swell jumps to 8 ft from the SW with a 18-second period. The combined energy hits 3956. This is flagged as excellent for experienced surfers. The Island is a reef, so this long-period groundswell will be perfect here, not breaking too straight. This is your second standout. It’s a big, clean, powerful swell. The morning of the 23rd is also solid but slightly smaller at 7 ft.

Thursday the 24th is a tragedy. The wind goes nuclear from the north at 28 mph, blowing cross-off. The swell is 8 ft, but it’s unsurfable. The same goes for Friday the 25th and Saturday the 26th – strong to near-gale force winds, messy, and dangerous. Sunday the 27th has an 8 ft SW swell with a gentle cross-onshore wind, but it’s only marginal.

So to wrap it up: your two best bets are Wednesday the 15th (clean, chest-to-head-high, offshore) and the afternoon of Thursday the 23rd (solid, powerful, clean). The rest of the window is either blown out, flat, or too wild. If you’re a kite surfer, the days with strong cross-onshore winds and big swell (like the 14th, 24th, 25th, 26th) will look more interesting than paddle surfing.

Rusty.

Short Range Forecast

Light rain (total 3mm), mostly falling on Sun morning. Very mild (max 16°C on Sun night, min 14°C on Sat night). Winds decreasing (fresh winds from the SW on Sat night, light winds from the S by Tue afternoon).

Days 5-7 Weather Summary

Mostly dry. Very mild (max 17°C on Wed afternoon, min 13°C on Wed morning). Wind will be generally light.

Sunday
12
Monday
13
Tuesday
14
Wednesday
15
Thursday
16
Friday
17
Sat
18
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Rating
(10 max)
0
0
0
0
0
0
0
0
2
4
4
4
3
2
2
3
3
2
1
0
0
Swell
Height Map
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
12
2.1
SW
12
2.1
SW
12
2.4
SW
17
2.5
SW
16
2.5
SW
16
2.5
SW
17
3.5
SW
16
2.3
SW
16
2
SW
15
1.8
SW
15
1.6
SW
14
1.4
SW
14
1.2
SW
14
1.2
SW
14
1.5
SW
16
1.5
SW
16
1.3
SW
15
1
SW
14
0.8
SW
13
0.7
SW
13
Wave Graph
Metric surfscale
Energy kJ
1525
1359
1261
3325
3263
3193
3597
5377
2506
1776
1308
1092
825
573
573
1109
1055
685
390
212
180
Wind (km/h)
30
WSW
30
W
25
W
25
W
25
W
30
WSW
25
WSW
20
WSW
15
SSW
10
ESE
10
ENE
10
ESE
15
ENE
20
NNE
10
NNW
20
NE
20
NNE
15
N
25
NNE
35
N
40
N
Wind State
cross-on
on
on
on
on
on
on
cross-on
cross
cross-off
off
cross-off
cross-off
cross-off
cross
cross-off
cross-off
cross
cross-off
cross
cross
High Tide
4:01AM0.00m
5:36AM0.00m
7:14AM0.00m
9:02AM0.00m
11:01AM0.00m
12:56PM0.00m
2:40PM0.00m
Low Tide
4:49PM-0.00m
6:24PM-0.00m
8:06PM-0.00m
10:02PM-0.00m
00:00AM-0.00m
1:50AM-0.00m
cloud
light rain
clear
part cloud
rain showers
clear
part cloud
part cloud
rain showers
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
7:35
7:35
7:35
7:33
7:33
7:33
7:33
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
5:42
5:42
5:43
5:44
5:44
5:45
5:45
 mm
1
1
1
Temp °C
14
15
15
16
16
16
15
15
15
14
15
17
17
15
17
17
14
17
17
16
18
Feels °C
6
9
10
11
11
11
10
11
12
13
12
15
13
11
15
13
9
13
12
8
10
  • 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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