Castles Surf Break

Lat Long: 32.09° S 132.98° E

Castles Surf Forecast and Surf Report

Issued: 2 am 09 Jul 2026 (local time)

Forecast update in  hr  min

Today's Castles sea temperature is
15.9° C
0.7° 

Castles surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.


Castles surf forecast from 8 Jul 2026:

  • Best quality surf: Tuesday 14 Jul, 9PM (local time) - 7ft (2.1m), 16s period, SW swell with cross-offshore winds.
  • Most powerful swell: Tuesday 14 Jul, 9AM (local time) - 8ft (2.4m), 17s period, SW swell with 3,325 kJ wave energy.
  • Next surfable swell (1★+): Thursday 9 Jul, 9AM (local time) - 3.5ft (1.1m), 15s period with SW swell.

Best Forecast Surf Conditions for Castles this week:

The surf forecast for Castles over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Thursday (Jul 09) at 9AM. The primary swell is predicted to be 1.1m and 15s period with a secondary swell of 0.4m and 20s. The wind is predicted to be cross-offshore as the swell arrives.

The most powerful waves expected at Castles in the next 16 days are 2.4m 17s and forecast to arrive on Tuesday (Jul 14) at 9AM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.4m 3s period and expected on Thursday (Jul 16) at 9AM.

Wave TypeTime (ACST) & Date Wave Height & Period
Next good surf (1 star+) 9AM (Thu 9th Jul)3.5ft (1.1m) 15s
Best Surf 9PM (Tue 14th Jul)7ft (2.1m) 16s
Most Powerful 9AM (Tue 14th Jul)8ft (2.4m) 17s

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


G’day, Rusty here.

Alright, let’s have a squiz at what’s cookin’ for Castles over the next couple of weeks. It’s a bit of a mixed bag, but we’ve got a couple of real gems hiding in there if you’re patient.

The forecast starts with a tidy little window. Thursday morning, the 9th of July, we’re looking at a clean 4ft SW swell with a very long period of 15 seconds. That’s proper groundswell energy, and the light NNW breeze is blowin’ cross-off, so the faces will be nice and clean. The water’s sitting at 61°, which is about normal for this time of year, so no surprises there. The combined energy is moderate (606), but it’s a reef break, so those long-period lines will wrap in nicely. This is a standout for the whole period – good for a beginner to intermediate surfer, but the long period might make it a bit more powerful than it looks.

Thursday afternoon gets a bit dodgy with onshore wind, so I’d be in the water early. Friday morning is still rideable with a cross-shore breeze, but it’s a bit choppier. From Saturday, the 11th, through to Tuesday, the 14th, we’ve got a real run of poor conditions. The swell gets messy with strong onshore winds, and the energy spikes up but the quality drops. Not worth paddling out for a surf. Wednesday morning, the 15th of July, is where it gets interesting again. We’ve got a 6ft SW swell at 15 seconds, and a gentle offshore from the ENE. That’s a magic combo for Castles – clean, lined-up waves. The combined energy is strong (1381), but it’s in the sweet spot for experienced surfers. This is another standout session.

The rest of the week stays small and clean, but nothing to write home about. Then we hit a long gap of average to poor conditions from the 18th through to the 23rd. A few mornings look clean, but the swell is small or the wind swings onshore. There’s a big gap of about five days with no real recommendations.

Then, on Friday the 24th of July, we get a late shout. That morning we’ve got a 10ft SW swell with a 13-second period. That’s a solid, powerful swell, but it’s only for experts – over 8ft and it’ll be a handful. The wind is offshore from the SE, so the waves will be clean, but the energy is extreme (5330). This is a big, powerful, expert-only session. The afternoon holds similar size with a slight shift to SSW. It’s promising, but it’s a long way out, so keep an eye on it.

So, the two true standouts are Thursday morning the 9th, and Wednesday morning the 15th. Both have clean conditions, good swell direction, and that long-period groundswell making for some proper waves. Get in early.

Rusty.

Short Range Forecast

Mostly dry. Very mild (max 17°C on Fri afternoon, min 13°C on Thu night). Winds increasing (calm on Thu morning, fresh winds from the WSW by Sat morning).

Days 4-6 Weather Summary

Some drizzle, heaviest during Mon afternoon. Very mild (max 16°C on Tue morning, min 13°C on Tue night). Winds decreasing (fresh winds from the W on Mon morning, light winds from the S by Tue afternoon).

Thursday
9
Friday
10
Saturday
11
Sunday
12
Monday
13
Tuesday
14
Wednesday
15
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
3
2
2
2
0
0
0
0
0
3
0
1
0
0
1
3
1
4
4
3
3
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
1.1
SW
15
1.3
SW
17
1.3
SW
15
1.1
SW
15
1.1
SW
14
0.9
SW
14
1.9
SW
7
2.1
SW
8
2.1
SW
12
2.5
SW
13
1.9
SW
13
2
SW
14
2.1
SW
16
2.5
SW
14
1.7
SW
13
2.4
SW
17
2.3
SW
16
2.1
SW
16
1.8
SW
15
1.6
SW
15
1.4
SW
14
Wave Graph
Metric surfscale
Energy kJ
472
1050
763
558
459
331
322
625
1169
2207
1136
1507
1983
2944
1014
3325
2645
2009
1381
1123
813
Wind (km/h)
10
NNW
10
SW
10
NNW
15
NNW
15
W
20
NNW
35
WSW
35
SW
25
SW
15
W
25
W
20
WNW
25
WNW
30
WSW
20
W
15
WSW
20
SW
10
E
15
ENE
15
ESE
15
ENE
Wind State
cross-off
on
cross
cross
cross-on
cross
on
cross-on
on
cross-on
on
cross-on
cross-on
on
on
on
on
cross-off
off
cross-off
off
High Tide
10:15AM0.97m
11:53PM0.50m
11:07AM1.15m
00:15AM0.53m
11:48AM1.29m
00:34AM0.55m
12:23PM1.38m
00:49AM0.58m
12:54PM1.41m
1:01AM0.62m
1:19PM1.39m
1:14AM0.68m
Low Tide
11:37PM0.46m
6:31PM0.33m
6:49PM0.21m
4:29AM0.36m
7:15PM0.15m
5:12AM0.27m
7:39PM0.14m
5:46AM0.18m
7:58PM0.18m
6:17AM0.12m
8:10PM0.22m
clear
clear
part cloud
clear
clear
clear
part cloud
part cloud
cloud
part cloud
part cloud
part cloud
part cloud
rain showers
clear
clear
clear
clear
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
7:37
7:37
7:37
7:37
7:37
7:37
7:37
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
5:46
5:47
5:47
5:49
5:49
5:50
5:50
 mm
1
Temp °C
15
16
15
16
17
16
15
14
14
15
15
15
15
15
15
16
15
14
15
17
16
Feels °C
14
13
13
12
13
12
8
7
9
10
10
11
8
9
12
12
12
12
12
13
11
  • Map Icons:
  • Break
  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
Map placeholder
How to use the Wavefinder 
submit an eyeball surf report

Quick surf report for Castles:

join our community of surf reporters

FREE! Surf-Forecast.com widget for your website

The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Castles surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.


Information about the Castles Surf forecast

The above surf forecast table for Castles provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Castles can be found by selecting the local surf guide option on the grey menu. Our Castles 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 (Castles) 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 Castles 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 Nullarbor? If you are looking for accommodation near Castles, camping, hotels and holiday cottages in Nullarbor, consider staying in Thevenard which is 64 km (40 miles) away.

Nearest locationNearest