Thirroul Surf Break

Lat Long: 34.32° S 150.93° E

Thirroul Surf Forecast and Surf Report

Issued: 9 pm 10 Aug 2026 (local time)

Forecast update in  hr  min

Today's Thirroul sea temperature is
17.8° C
0.3° 

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


Thirroul surf forecast from 10 Aug 2026:

  • Best quality surf: Tuesday 11 Aug, 7PM (local time) - 4.5ft (1.4m), 11s period, S swell with offshore winds.
  • Most powerful swell: Sunday 16 Aug, 10PM (local time) - 7.5ft (2.3m), 8s period, SE swell with 616 kJ wave energy.
  • Next surfable swell (1★+): Tuesday 11 Aug, 7PM (local time) - 4.5ft (1.4m), 11s period with S swell.

Best Forecast Surf Conditions for Thirroul this week:

The surf forecast for Thirroul over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Tuesday (Aug 11) at 7PM. The primary swell is predicted to be 1.4m and 11s period with a secondary swell of 0.6m and 10s. The wind is predicted to be offshore as the swell arrives.

The most powerful waves expected at Thirroul in the next 16 days are 2.3m 8s and forecast to arrive on Sunday (Aug 16) at 10PM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.9m 4s period and expected on Tuesday (Aug 11) at 1AM.

Wave TypeTime (AEST) & Date Wave Height & Period
Next good surf (1 star+) 7PM (Tue 11th Aug)4.5ft (1.4m) 11s
Best Surf 7PM (Tue 11th Aug)4.5ft (1.4m) 11s
Most Powerful10PM (Sun 16th Aug)7.5ft (2.3m) 8s

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


The Lowdown

G'day, it's Rusty.

Alright, look, the next couple of weeks at Thirroul are a bit of a mixed bag, but there are a couple of standout sessions if you're willing to be patient. The water's sitting at 64°, which is pretty much bang on average for this time of year, so no need to worry about any weird currents.

We kick off on Monday the 10th, but it's nothing to write home about. There's a 1.5m ENE swell running, but the wind is a fresh offshore from the NW at 19 mph, which would normally be good, but the wave comment says it's marginal. The combined energy is moderate (407), so don't go cancelling your plans yet.

Now, Tuesday the 11th is a bit of a write-off. The morning has a weak 0.9m south swell, and while the wind is clean, it's a cross-off. The afternoon pushes up to 1.6m, but the conditions are still poor. Not worth rushing down.

Wednesday the 12th is a bit better. The morning shows a 1.0m south swell with a gentle offshore from the WNW, and the combined energy is moderate (227). The call is for good surf, so a sneaky dawn session could be okay.

But the real highlight, the one you’ve been waiting for, is Thursday the 13th. The morning is pumping. We’re looking at a solid 2.3m south swell, which is getting up there, so it's definitely for the experienced crew only. The wind is light and cross-off from the SW, and the combined energy is a massive 1268 (strong). This is the best on offer – expect excellent, powerful waves. It’s a beach and reef setup, and with those sizes, it’ll be a proper challenge. The afternoon goes to crap, so get it while you can.

Friday the 14th morning is a beauty for the everyday surfer. The swell drops to a clean 1.2m from the south, but the wind goes glassy – dead flat. That’s a major positive. The combined energy is moderate (249), and the call is for good surf. It’ll be clean as a whistle. The afternoon turns choppy, so make it a morning mission.

After that, we hit a long dry spell. From Saturday the 15th right through to Wednesday the 19th, it's a week of near-constant onshore winds and weak, short-period junk. The swell is mostly small and messy, with periods of 6-7 seconds. It’s a full blank run. There's a tiny window on Thursday the 20th morning with a glassy 0.9m wave, but it's very ordinary. Friday the 21st morning is also glassy but with a tiny 0.4m swell – not enough to get excited about.

The next real glimmer of hope comes from further out. On Sunday the 23rd, the morning brings a 0.9m ENE swell with a clean offshore from the WNW. It's a long way off, so it's a promise, not a guarantee. Then, looking at the tail end, Monday the 24th afternoon has a pulse of 1.8m south swell, and Tuesday the 25th morning looks very promising with a 1.8m south swell and a clean offshore from the NW, with a combined energy of 709 (strong). That’s another one for the early birds who can read the charts.

So, to wrap it up: the best surf is Thursday the 13th morning for the big-wave chargers, and Friday the 14th morning for the rest of us wanting clean, fun waves. The rest of the week is a bust, and the long-range stuff on the 25th is worth keeping an eye on.

Rusty.

Short Range Forecast

Mostly dry. Very mild (max 19°C on Tue morning, min 9°C on Tue night). Winds decreasing (fresh winds from the W on Mon night, light winds from the SW by Thu afternoon).

Days 5-7 Weather Summary

Light rain (total 8mm), mostly falling on Sat night. Very mild (max 16°C on Fri morning, min 9°C on Thu night). Wind will be generally light.

Tuesday
11
Wednesday
12
Thursday
13
Friday
14
Saturday
15
Sunday
16
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
0
0
2
2
2
0
0
2
1
1
1
0
1
0
0
0
0
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)
0.9
NE
10
0.6
S
12
1.5
S
10
1.3
S
10
1
S
9
0.8
S
9
0.7
S
8
1.3
S
8
1.8
S
8
1.1
S
7
1
S
8
0.9
SSE
8
1.2
S
7
1.6
S
7
1.6
S
7
1.3
SSE
7
1.5
SSE
7
1.5
SSE
7
2.1
SE
8
Wave Graph
Metric surfscale
Energy kJ
137
96
461
365
170
97
65
230
448
127
134
96
159
255
240
157
181
231
512
Wind (km/h)
35
W
25
W
20
W
15
WNW
15
WNW
20
W
20
WSW
10
SW
15
SE
15
W
0
S
15
SE
15
SSW
25
S
20
S
20
SE
25
SSE
20
SSE
15
SE
Wind State
cross-off
cross-off
cross-off
off
off
cross-off
cross-off
cross-off
cross-on
off
glassy
cross-on
cross
cross
cross-on
on
cross-on
cross-on
on
High Tide
7:01AM1.10m
7:01PM1.73m
7:50AM1.17m
7:50PM1.75m
8:36AM1.23m
8:37PM1.72m
9:19AM1.29m
9:21PM1.63m
10:01AM1.32m
10:04PM1.51m
10:42AM1.34m
10:47PM1.35m
Low Tide
1:02AM0.05m
12:29PM0.28m
1:50AM-0.01m
1:23PM0.23m
2:34AM-0.04m
2:14PM0.20m
3:15AM-0.02m
3:03PM0.20m
3:53AM0.03m
3:52PM0.23m
4:29AM0.10m
4:42PM0.28m
clear
clear
clear
clear
part cloud
part cloud
clear
clear
clear
clear
clear
clear
rain showers
rain showers
clear
rain showers
rain showers
light rain
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
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>
5:22
5:22
5:22
5:23
5:24
5:25
 mm
2
1
3
1
1
Temp °C
14
19
18
12
18
17
13
16
15
11
16
15
13
16
15
14
16
15
14
Feels °C
7
13
13
6
13
12
9
13
11
8
13
12
10
10
10
10
10
10
10
  • 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 Thirroul:

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 Thirroul 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 Thirroul Surf forecast

The above surf forecast table for Thirroul provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Thirroul can be found by selecting the local surf guide option on the grey menu. Our Thirroul 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 (Thirroul) 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 Thirroul 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 Illawarra? If you are looking for accommodation near Thirroul, camping, hotels and holiday cottages in Illawarra, consider staying in Wollongong which is 12 km (7 miles) away. Other places in and around Illawarra where you can find information about places to rent, and car hire include Port Kembla which is 19 km (12 miles) away, Engadine, Cronulla and Caringbah.

Nearest locationNearest