Thirroul Surf Break

Lat Long: 34.32° S 150.93° E

Thirroul Surf Forecast and Surf Report

Issued: 9 pm 08 Jul 2026 (local time)

Forecast update in  hr  min

Today's Thirroul sea temperature is
18.3° C
0.7° 

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


Thirroul surf forecast from 8 Jul 2026:

  • Best quality surf: Thursday 9 Jul, 7AM (local time) - 5ft (1.6m), 10s period, SE swell with cross-offshore winds.
  • Most powerful swell: Wednesday 15 Jul, 7PM (local time) - 10ft (3.0m), 11s period, S swell with 1,944 kJ wave energy.
  • Next surfable swell (1★+): Thursday 9 Jul, 7AM (local time) - 5ft (1.6m), 10s period with SE 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 Thursday (Jul 09) at 7AM. The primary swell is predicted to be 1.6m and 10s period with a secondary swell of 1.1m and 10s. 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 3.0m 11s and forecast to arrive on Wednesday (Jul 15) at 7PM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.7m 4s period and expected on Saturday (Jul 11) at 7PM.

Wave TypeTime (AEST) & Date Wave Height & Period
Next good surf (1 star+) 7AM (Thu 9th Jul)5ft (1.6m) 10s
Best Surf 7AM (Thu 9th Jul)5ft (1.6m) 10s
Most Powerful 7PM (Wed 15th Jul)10ft (3.0m) 11s

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


Alright, Rusty here. Let’s have a look at what’s on the menu for the coming weeks.

First up, the water temp is sitting about average for this time of year, nothing out of the ordinary there. The south-east swell direction at Thirroul is right on the money for this spot, which is a good sign.

We’ve got a bit of a slow start, but things get going properly on Friday morning, 11 July. That Saturday morning, July 11th, is where the real highlight sits. The swell is a nice 4ft from the south-east, running on a 9-second period, and we’ve got a clean offshore breeze from the north-west. The combined swell energy is sitting at 328, which is a good, punchy feel for the beach and reef setup here. It’s not too big for most surfers and the conditions should be tidy. That afternoon holds a clean 3ft from the east-south-east with a longer 11-second period and light cross-off wind – good for a longer session if you want a change of pace. Crowds can be a bit of a thing here sometimes, so get in early.

Friday afternoon, July 10th, also looks tidy – 5ft south-east swell with a glassy surface, which is hard to beat. The combined swell energy for that afternoon is 474, so plenty of push, but the wind is dead calm. That’s a solid call for a late arvo paddle.

The rest of the first week is pretty ordinary. We get a few small clean mornings on Sunday and Monday (July 12 and 13), but the swell drops right away – down to 2ft or less. Not really worth getting wet for unless you’re on a log.

The second week gets a bit ugly. By Wednesday afternoon, July 15, the swell jumps to 8ft from the south, but with a nasty 25 mph cross-shore wind and energy reading of 1642 – that’s a washing machine. Thursday 16th is even bigger at 10ft and 34 mph winds. That’s expert-only territory, and even then, it’s gonna be a mess. Honestly, this setup looks more interesting for kite surfing than a proper paddle.

Things start to clean up again late in the run. Sunday morning, July 19, brings a clean 4ft south swell with a light cross-off breeze and combined energy of 243 – not huge, but workable and clean. Then Monday afternoon, July 20, looks promising too: 3ft south swell, 12-second period, clean conditions, and combined energy of 268. That’s a long-period groundswell, which at a beach and reef setup like Thirroul can be a bit straight, but still better than what we’ve had in between.

The last few days taper off to almost nothing, with just tiny 1.0ft or 0.7ft waves for the remainder. A couple of glassy mornings on July 23 and 24, but really just flat.

So, the standout window: Saturday morning July 11. Don’t sleep on Friday arvo July 10 either if you like clean conditions with a bit more size.

Rusty.

Short Range Forecast

Light rain (total 3mm), mostly falling on Wed night. Very mild (max 17°C on Sat morning, min 9°C on Fri night). Wind will be generally light.

Days 5-7 Weather Summary

Mostly dry. Very mild (max 18°C on Tue morning, min 10°C on Sun night). Wind will be generally light.

Thursday
9
Friday
10
Saturday
11
Sunday
12
Monday
13
Tuesday
14
Wed
15
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Rating
(10 max)
3
2
1
2
1
2
2
2
2
1
0
1
0
1
1
0
0
0
1
0
0
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)
1.7
SE
9
1.6
SE
10
1.6
SE
10
1.6
SE
9
1.6
SE
9
1.6
SE
10
1.3
SE
9
1.1
SE
9
0.8
ESE
11
0.9
ESE
10
0.5
ESE
10
0.4
ESE
10
0.4
SSW
7
0.5
S
11
0.6
S
8
0.4
S
7
0.4
S
10
0.4
S
10
0.2
SSE
19
0.4
S
9
2.5
S
11
Wave Graph
Metric surfscale
Energy kJ
513
489
489
393
449
456
275
168
161
143
60
33
18
59
44
15
32
34
36
28
1642
Wind (km/h)
15
SW
15
SSW
10
S
10
SW
5
SSW
5
ESE
10
WNW
10
NW
10
N
15
NW
30
W
25
W
20
W
15
WNW
20
W
10
WNW
25
W
25
W
15
WNW
30
SW
40
SSW
Wind State
cross-off
cross
cross-on
cross-off
cross
glassy
off
off
cross-off
off
off
off
off
off
off
off
cross-off
cross-off
off
cross-off
cross
High Tide
2:30AM1.09m
3:26PM1.40m
3:45AM1.05m
4:24PM1.50m
5:00AM1.03m
5:22PM1.60m
6:09AM1.05m
6:18PM1.70m
7:10AM1.09m
7:12PM1.77m
8:06AM1.12m
8:05PM1.81m
8:57AM1.15m
Low Tide
8:41AM0.28m
10:01PM0.38m
9:39AM0.30m
11:11PM0.27m
10:39AM0.31m
00:15AM0.15m
11:39AM0.29m
1:13AM0.04m
12:36PM0.27m
2:07AM-0.03m
1:31PM0.24m
2:57AM-0.07m
2:25PM0.23m
rain showers
rain showers
part cloud
clear
part cloud
cloud
part cloud
cloud
part cloud
part cloud
clear
clear
clear
clear
clear
clear
part cloud
part cloud
part cloud
cloud
cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
7:01
7:01
7:01
7:01
7:01
7:00
7:00
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
5:00
5:00
5:00
5:01
5:01
5:02
5:04
 mm
1
2
Temp °C
12
15
15
12
15
14
11
17
17
12
14
14
12
17
16
13
18
16
13
14
12
Feels °C
9
12
12
10
13
13
9
14
14
8
7
8
7
12
10
8
12
10
8
5
3
  • 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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