Thirroul Surf Break

Lat Long: 34.32° S 150.93° E

Thirroul Surf Forecast and Surf Report

Issued: 9 pm 06 Sep 2026 (local time)

Forecast update in  hr  min

Today's Thirroul sea temperature is
17.9°C
0.4° 

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


Thirroul surf forecast from 6 Sep 2026:

  • Best quality surf: Thursday 10 Sep, 10PM (local time) - 8ft (2.5m), 10s period, SSE swell with cross-offshore winds.
  • Most powerful swell: Wednesday 9 Sep, 10PM (local time) - 13ft (4.0m), 9s period, S swell with 2,457 kJ wave energy.
  • Next surfable swell (1★+): Monday 7 Sep, 4AM (local time) - 4.5ft (1.4m), 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 (Sep 07) at 4AM. The primary swell is predicted to be 1.4m and 8s period with a secondary swell of 0.2m 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 4.0m 9s and forecast to arrive on Wednesday (Sep 09) at 10PM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.4m 3s period and expected on Saturday (Sep 12) at 10PM.

Wave TypeTime (AEST) & Date Wave Height & Period
Next good surf (1 star+) 4AM (Mon 7th Sep)4.5ft (1.4m) 8s
Best Surf10PM (Thu 10th Sep)8ft (2.5m) 10s
Most Powerful10PM (Wed 9th Sep)13ft (4.0m) 9s

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


Short Range Forecast

Some drizzle, heaviest during Mon night. Warm (max 21°C on Mon morning, min 9°C on Tue night). Winds increasing (light winds from the WNW on Sun night, fresh winds from the S by Wed afternoon).

Days 5-7 Weather Summary

Mostly dry. Very mild (max 17°C on Fri morning, min 8°C on Wed night). Winds decreasing (fresh winds from the S on Wed night, light winds from the SSE by Fri morning).

Monday
7
Tuesday
8
Wednesday
9
Thursday
10
Friday
11
Saturday
12
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
2
2
0
1
1
2
2
0
0
2
1
0
4
2
0
3
2
0
2
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
1.6
S
8
1.4
SSE
8
1.5
SSE
9
3
S
9
2.2
SSE
8
1.9
SSE
9
1.5
SSE
9
0.9
S
8
2.5
SSE
7
3.5
S
10
2.5
S
9
2.5
SSE
9
3
S
10
2.1
SSE
9
1.9
SSE
9
1.7
SSE
10
1.6
SSE
11
1.4
SSE
10
1.2
SSE
9
Wave Graph
Metric surfscale
Energy kJ
349
238
336
1619
660
572
336
108
710
2162
1041
1097
1514
705
592
574
622
380
232
Wind (km/h)
10
WSW
10
NNW
20
SSE
30
SSW
20
S
10
ESE
10
NW
25
SSW
35
S
25
SSW
25
S
20
S
10
WSW
5
SSE
20
SE
10
SW
10
SSE
15
ENE
10
NW
Wind State
cross-off
cross-off
cross-on
cross
cross
on
off
cross
cross-on
cross-off
cross
cross-on
cross-off
cross-on
cross-on
cross-off
cross-on
cross-on
off
High Tide
5:00AM1.00m
4:59PM1.53m
5:58AM1.09m
5:56PM1.59m
6:46AM1.18m
6:46PM1.62m
7:28AM1.27m
7:32PM1.61m
8:08AM1.35m
8:15PM1.56m
8:46AM1.41m
8:57PM1.46m
Low Tide
10:57PM0.22m
10:24AM0.42m
11:54PM0.14m
11:28AM0.35m
00:42AM0.07m
12:24PM0.27m
1:23AM0.03m
1:15PM0.21m
2:01AM0.03m
2:02PM0.17m
2:37AM0.06m
2:48PM0.16m
3:10AM0.12m
clear
clear
part cloud
rain showers
part cloud
clear
clear
cloud
part cloud
part cloud
clear
clear
clear
clear
clear
part cloud
part cloud
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:07
6:05
6:05
6:03
6:01
6:01
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
5:40
5:42
5:42
5:43
5:44
5:45
 mm
1
Temp °C
14
21
17
14
15
15
11
15
14
13
14
15
12
17
15
11
17
16
12
Feels °C
12
19
13
8
12
13
9
10
6
5
8
10
10
15
11
8
15
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)
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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.

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