The Island Surf Break

Lat Long: 33.05° S 134.17° E

The Island Surf Forecast and Surf Report

Issued: 2 pm 15 Jul 2026 (local time)

Forecast update in  hr  min

Today's The Island sea temperature is
15.6° C
0.7° 

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 15 Jul 2026:

  • Best quality surf: Thursday 16 Jul, 6PM (local time) - 5ft (1.6m), 16s period, SW swell with cross-offshore winds.
  • Most powerful swell: Thursday 16 Jul, 3PM (local time) - 5ft (1.6m), 17s period, SW swell with 1,502 kJ wave energy.
  • Next surfable swell (1★+): Thursday 16 Jul, 6PM (local time) - 5ft (1.6m), 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 (Jul 16) at 6PM. The primary swell is predicted to be 1.6m 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 1.6m 17s and forecast to arrive on Thursday (Jul 16) at 3PM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.6m 3s period and expected on Sunday (Jul 19) at 3AM.

Wave TypeTime (ACST) & Date Wave Height & Period
Next good surf (1 star+) 6PM (Thu 16th Jul)5ft (1.6m) 16s
Best Surf 6PM (Thu 16th Jul)5ft (1.6m) 16s
Most Powerful 3PM (Thu 16th Jul)5ft (1.6m) 17s

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


The Lowdown

Right then, let’s have a look at what’s coming up for The Island. This is a solid reef setup, exposed to a SW swell, and it’s got a proper pulse of energy headed our way. We’re looking at a real standout window that’ll get the heart racing, but you’ll have to sit through some average days first.

Things kick off proper on Wednesday, July 15th. We’ve got a clean 5 ft SW groundswell rolling in with a very long 15-second period, and the combined energy is strong to very strong (1112). The water temp is sitting at 60°, which is about average for this time of year, so nothing too wild there. The wind is glassy from the north at just 3 mph. That’s as good as it gets for conditions. This is a top-tier window for experienced surfers, but with that size and power, it’s no place for beginners. It’s going to hold a fair bit of water, and with a long period like that, expect big, powerful lines that’ll be best handled by those who know what they’re doing. Crowds are sometimes an issue here, so you might have some company.

Thursday morning the 16th sees a jump in energy (1540) but the wind swings cross-off from the NNE at 12 mph, so it’s a bit less perfect but still clean. The swell hangs around 5 ft to 5 ft on a 15 to 17-second pulse. The afternoons get a bit cross, so the morning is the call if you’re keen.

Friday the 17th drops a touch, with 4 ft SW swell and energy falling to between 785 and 897. The wind is either cross-off or cross, so it’s surfable but not a standout.

Saturday the 18th and Sunday the 19th see the swell drop further, down into the 1 ft to 3 ft range with weak to moderate energy (258 to 618). Winds get cross and a bit choppy. Not much to write home about.

Monday the 20th through Tuesday the 21st sees the swell bounce back to 4 ft to 5 ft, but the winds are cross or onshore, and the energy is still moderate to strong (574 to 684). It’s marginal, and the quality is lacking.

There’s a bit of a lull from Wednesday the 22nd into Thursday the 23rd, with smaller swell and poor to marginal conditions, though Thursday morning shows a 5 ft SW groundswell with a 15-second period and energy pushing 941. Winds are light cross-onshore, so it’s a bit bumpy but there’s some power.

Then, mark your calendar for Saturday, July 25th. This is the real highlight. We’ve got a cracking 7 ft to 7 ft SW groundswell, period hitting 18 seconds, and the combined energy is huge (2473 on the morning). The wind is offshore from the ENE at 9 mph on Saturday morning. That is an absolute treat. Clean, powerful, and lined up. This is for experienced surfers only—over 8 ft later in the day, it’ll be chunky and expert-only. Saturday morning is the standout, no question. Long period groundswell of that size loves a reef like The Island.

Sunday the 26th goes a bit messy with onshore wind, and the swell drops to 5 ft to 5 ft.

Monday, July 27th is another strong pulse, with a 5 ft to 8 ft SW swell, period 16 to 17 seconds, and massive energy (2597 to 4384). The winds are cross-off or cross, and clean, but that size (8 ft) is heavy. Definitely for the advanced crew. Tuesday the 28th settles down with 4 ft to 4 ft, clean cross-off winds, a nice easy option for the less hectic days.

From Wednesday the 29th through Thursday the 30th, the swell fades back down to smaller, weaker waves (2 ft to 3 ft) and short to very long periods, but the winds and chop make it a poor bet. It’s not worth the trip.

So, the best on offer: Wednesday, July 15th afternoon is a top-tier runner, clean and powerful. But the absolute gem is Saturday, July 25th morning—offshore wind, strong SW groundswell, long period. That’s the one to aim for. The Island is a consistent reef, so it doesn’t stay flat for long.

Rusty

Short Range Forecast

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

Days 5-7 Weather Summary

Mostly dry. Very mild (max 18°C on Sat afternoon, min 14°C on Sun morning). Wind will be generally light.

Wed
15
Thursday
16
Friday
17
Saturday
18
Sunday
19
Monday
20
Tuesday
21
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
Rating
(10 max)
4
2
3
3
3
2
2
1
1
1
1
0
1
2
0
1
1
1
0
0
1
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)
1.6
SW
15
1.5
SW
14
1.5
SW
15
1.6
SW
17
1.5
SW
16
1.3
SW
16
1.3
SW
16
1.1
SW
14
0.9
SW
13
0.9
SW
13
0.7
SW
13
0.4
SW
19
1
SW
18
1.1
SW
16
1.1
SW
15
1.1
SW
14
0.9
SW
14
1.3
SW
14
1.4
SW
13
1.1
SW
12
0.9
SW
12
Wave Graph
Metric surfscale
Energy kJ
1108
899
924
1502
1041
886
773
482
299
253
170
133
607
653
566
536
268
586
680
379
236
Wind (km/h)
5
N
20
NE
20
NNE
10
N
20
NNE
20
N
15
NNW
20
NNE
25
N
15
NNW
20
NNE
25
N
20
NNW
20
NNE
25
N
15
NNW
20
NNE
20
N
15
WNW
15
S
10
S
Wind State
glassy
cross-off
cross-off
cross
cross-off
cross-off
cross
cross-off
cross-off
cross
cross-off
cross
cross
cross-off
cross
cross-on
cross-off
cross
on
cross
cross
High Tide
11:01AM0.00m
12:56PM0.00m
2:40PM0.00m
4:16PM0.00m
5:55PM0.00m
7:51PM0.00m
Low Tide
10:02PM-0.00m
00:00AM-0.00m
1:50AM-0.00m
3:28AM-0.00m
5:04AM-0.00m
6:50AM-0.00m
8:56AM-0.00m
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
cloud
cloud
cloud
cloud
cloud
part cloud
clear
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
7:33
7:33
7:33
7:33
7:31
7:31
7:31
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
5:44
5:44
5:45
5:45
5:45
5:46
5:46
5:47
 mm
Temp °C
16
16
14
16
16
14
17
17
14
18
18
15
18
18
15
18
18
16
16
15
14
Feels °C
15
12
10
13
11
9
14
12
8
15
13
9
14
14
10
15
14
11
13
12
13
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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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