Thirroul Surf Break

Lat Long: 34.32° S 150.93° E

Thirroul Surf Forecast and Surf Report

Issued: 9 am 27 Jul 2026 (local time)

Forecast update in  hr  min

Today's Thirroul sea temperature is
18.5° C
1.0° 

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


Thirroul surf forecast from 27 Jul 2026:

  • Best quality surf: Thursday 30 Jul, 4AM (local time) - 7.5ft (2.3m), 11s period, S swell with cross-offshore winds.
  • Most powerful swell: Thursday 30 Jul, 4AM (local time) - 7.5ft (2.3m), 11s period, S swell with 1,223 kJ wave energy.
  • Next surfable swell (1★+): Monday 27 Jul, 7PM (local time) - 2.5ft (0.8m), 8s period with SSE 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 Monday (Jul 27) at 7PM. The primary swell is predicted to be 0.8m and 8s period with a secondary swell of 0.1m and 15s. Another secondary swell of 0.3m and 2s is also forecast. The wind is predicted to be cross-offshore as the swell arrives.

The most powerful waves expected at Thirroul in the next 16 days are 2.3m 11s and forecast to arrive on Thursday (Jul 30) at 4AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.8m 4s period and expected on Wednesday (Jul 29) at 7PM.

Wave TypeTime (AEST) & Date Wave Height & Period
Next good surf (1 star+) 7PM (Mon 27th Jul)2.5ft (0.8m) 8s
Best Surf 4AM (Thu 30th Jul)7.5ft (2.3m) 11s
Most Powerful 4AM (Thu 30th Jul)7.5ft (2.3m) 11s

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


The Lowdown

Alright folks, Rusty here. Let’s have a look at what’s on offer for Thirroul over the next couple of weeks.

We’ve got a bit of a slow start, but there’s a glassy window early on, and then things really fire up later. The water temp is sitting at 65°, which is a tick above average for this time of year, so that’s a nice little bonus.

Monday 27th kicks off with a real tease. The morning is absolutely glassy, with a clean 3ft swell from the south, but it’s pretty weak energy (172). It’s surfable, but nothing to write home about. The afternoon turns ugly with a cross-shore wind, so that’s a write-off.

Tuesday 28th and Wednesday 29th are flat spells. The swell drops right off and the wind is all over the place, even if it’s offshore. There’s just no power in the water. A couple of days to chill.

Now, Thursday 30th is where it gets interesting. The morning is a standout. We’ve got clean, glassy conditions and a solid 7ft southerly swell rolling in. The energy is pumping (985) – that’s a proper boost. The only thing is, at that size, it starts getting a bit much for the groms, but for the experienced crew, it’s going to be a fun morning. The afternoon gets a bit wind-affected, so get it early.

Friday 31st holds size, with 5ft to 7ft southerly swell, but the wind is cross-shore or cross-on, so it’s going to be a bit lumpy. The energy is still high (514 to 1254), but it’s not the cleanest.

Saturday 1st August morning has a nice little window. Glassy again, with a 4ft south-southeast swell. The energy is moderate (288). It’s not huge, but it’ll be clean and fun for a paddle.

Sunday 2nd morning is clean with a cross-offshore breeze and a 4ft south-easterly. It’s a small, clean option for a longboard or a groveler.

Then we hit a bit of a lull from Monday 3rd through Wednesday 5th. The swell is either tiny or short-period and choppy. Not worth the wetsuit hassle.

Thursday 6th and Friday 7th see a rise in size again, but it’s all cross-shore wind and messy. 5ft to 8ft of southerly swell, but it’s lumpy and hard to love.

Now, here’s the big one. Saturday 8th August morning. This is the true standout of the entire outlook. The swell is a solid 12ft from the southeast with a long 11-second period. The energy is massive (5077). The wind is dead calm, glassy. This is only for the experts – that’s big, powerful surf. It’s going to be a sight to see. The afternoon turns onshore, so the morning is the only window.

Sunday 9th morning is still a good option, with a clean 7ft east-southeast swell and a cross-offshore breeze. The energy is still strong (912). A solid follow-up session for the more experienced.

Monday 10th and Tuesday 11th drop off significantly in size and quality, with the wind being too strong or the swell fading out. The last few days of the forecast are a write-off.

So, if you’re keen, the best bet is the Thursday 30th July morning for a solid, clean session, and the absolute gem is the Saturday 8th August morning – but that’s a big one, so only for the brave.

Rusty.

Short Range Forecast

Mostly dry. Warm (max 20°C on Tue afternoon, min 7°C on Wed night). Wind will be generally light.

Days 4-6 Weather Summary

Mostly dry. Very mild (max 15°C on Sat morning, min 9°C on Thu night). Wind will be generally light.

Monday
27
Tuesday
28
Wednesday
29
Thursday
30
Friday
31
Saturday
1
Sunday
2
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
1
0
1
0
0
0
0
0
1
3
1
3
2
2
2
2
1
2
2
0
1
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
1
S
9
0.9
SSE
8
0.6
S
8
0.4
S
8
0.3
S
9
0.2
S
8
0.1
SE
13
0.1
S
16
1.3
S
10
2.1
S
9
1.7
S
9
1.8
S
11
1.6
S
10
2
S
10
1.5
S
9
1.3
SSE
9
1.2
SSE
9
1.1
SSE
9
1.1
SE
10
0.9
SSE
10
0.8
SSE
11
Wave Graph
Metric surfscale
Energy kJ
158
118
43
18
14
8
7
7
325
699
440
734
509
710
397
283
237
197
225
154
143
Wind (km/h)
5
N
15
NE
10
NW
10
WNW
5
NNW
10
NW
20
W
25
WSW
15
WSW
5
WSW
15
SE
10
W
10
S
10
SSE
10
WSW
5
NW
10
E
10
NW
15
NNW
15
NNE
10
NW
Wind State
glassy
cross
cross-off
off
cross-off
cross-off
off
cross-off
cross-off
glassy
cross-on
off
cross
cross-on
cross-off
glassy
cross-on
off
cross-off
cross
cross-off
High Tide
6:53PM1.48m
7:36AM0.99m
7:32PM1.52m
8:13AM1.04m
8:08PM1.55m
8:49AM1.08m
8:44PM1.56m
9:25AM1.12m
9:19PM1.53m
10:01AM1.17m
9:54PM1.48m
10:38AM1.21m
10:31PM1.41m
Low Tide
12:15PM0.43m
1:45AM0.24m
12:58PM0.40m
2:20AM0.20m
1:39PM0.36m
2:54AM0.16m
2:18PM0.34m
3:26AM0.14m
2:57PM0.34m
3:57AM0.13m
3:38PM0.35m
4:29AM0.14m
4:22PM0.36m
clear
clear
part cloud
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
clear
clear
clear
cloud
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:54
6:52
6:52
6:50
6:50
6:50
6:48
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
5:10
5:12
5:13
5:13
5:14
5:15
5:15
 mm
Temp °C
16
16
12
19
20
12
16
14
10
14
13
10
14
14
11
15
15
11
19
19
14
Feels °C
13
13
10
15
17
8
9
7
4
10
9
7
10
10
9
13
13
9
15
16
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 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