Thirroul Surf Break

Lat Long: 34.32° S 150.93° E

Thirroul Surf Forecast and Surf Report

Issued: 9 pm 27 Aug 2026 (local time)

Forecast update in  hr  min

Today's Thirroul sea temperature is
18.0°C
0.6° 

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


Thirroul surf forecast from 27 Aug 2026:

  • Best quality surf: Friday 28 Aug, 4AM (local time) - 5ft (1.6m), 11s period, SSE swell with offshore winds.
  • Most powerful swell: Friday 28 Aug, 4AM (local time) - 5ft (1.6m), 11s period, SSE swell with 631 kJ wave energy.
  • Next surfable swell (1★+): Friday 28 Aug, 4AM (local time) - 5ft (1.6m), 11s 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 Friday (Aug 28) at 4AM. The primary swell is predicted to be 1.6m and 11s period with a secondary swell of 0.4m and 9s. The wind is predicted to be offshore as the swell arrives.

The most powerful waves expected at Thirroul in the next 16 days are 1.6m 11s and forecast to arrive on Friday (Aug 28) at 4AM. Winds are predicted to be offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.5m 6s period and expected on Wednesday (Sep 02) at 10AM.

Wave TypeTime (AEST) & Date Wave Height & Period
Next good surf (1 star+) 4AM (Fri 28th Aug)5ft (1.6m) 11s
Best Surf 4AM (Fri 28th Aug)5ft (1.6m) 11s
Most Powerful 4AM (Fri 28th Aug)5ft (1.6m) 11s

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


The Lowdown

G’day, I’m Rusty. Let’s talk about what’s on offer for Thirroul over the next couple of weeks.

We kick off with a bit of a quiet start. Friday the 28th has some waves but the wind is messy—cross on the morning and cross-on in the afternoon, so it’s not really worth suiting up for. Saturday morning 29th is the first real standout: glassy conditions with a clean 4ft SSE swell. The combined swell energy is moderate (404), the wind is glass, and you’ll get clean, lined-up surf on the beach and reef setup. That’s the pick of the early run. Saturday afternoon drops off with onshore wind.

Sunday 30th and Monday 31st have small swell around 3ft, but Sunday’s wind is cross-on, while Monday morning shapes up nicely with a light cross-off breeze and clean surf from a 3ft S swell. The energy is moderate (260) and conditions are clean. Tuesday 1st September has a small 3ft S swell with an 11-second period—decent shape, but the wind is cross-off on the morning, making it surfable but ordinary. By Wednesday 2nd the swell drops to 2ft, and it stays tiny through Thursday 3rd and Friday 4th, with combined energy in the low double digits. That’s a solid gap of weak waves.

Now, the good news: Sunday 6th September afternoon fires up. The wind turns offshore from the west at 15 mph, and the swell bumps to 4ft from the south with an 8-second period. The combined energy jumps to 316 (moderate), and it’s clean, offshore, and punchy. That’s another standout session.

Into the second week, Monday 7th September morning brings a solid 7ft S swell with an 11-second period. The energy is strong (1053) but at that size it’s best for experienced surfers. Wind is cross-off from the southwest, so it’s clean but the swell might be a bit much for the beach and reef setup. A point break would handle it better. Tuesday 8th September morning goes glassy with a 4ft S swell, combined energy 296, and clean conditions—worth a look. After that, the surf fades again into small, weak waves through to Saturday 12th September, with only the odd ordinary session.

Overall, Saturday 29th morning and Sunday 6th afternoon are your best bets. For the rest, pick your moments carefully.

Rusty.

Short Range Forecast

Mostly dry. Very mild (max 18°C on Sun morning, min 11°C on Thu night). Wind will be generally light.

Days 5-7 Weather Summary

Mostly dry. Warm (max 26°C on Wed morning, min 11°C on Sun night). Wind will be generally light.

Friday
28
Saturday
29
Sunday
30
Monday
31
Tuesday
1
Wednesday
2
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
2
2
1
2
1
0
2
2
0
1
1
0
1
0
1
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
SSE
12
1.5
SSE
11
1.5
SSE
10
1.3
SSE
9
1.3
SSE
10
1.1
SE
10
0.9
SE
10
1
S
9
1.1
S
9
1.2
S
9
1
S
9
0.9
SSE
9
0.7
S
9
0.8
S
11
0.8
S
11
0.7
S
10
0.6
S
10
0.5
S
10
0.4
SSE
10
Wave Graph
Metric surfscale
Energy kJ
285
511
446
261
290
211
134
152
207
230
151
141
76
151
146
100
70
48
32
Wind (km/h)
5
NW
10
SSW
20
SSE
10
WSW
5
SSE
10
ESE
5
WNW
10
SSE
10
ESE
5
W
5
N
20
NE
10
NW
15
N
10
NNE
10
NW
15
NNW
15
NW
10
WNW
Wind State
off
cross
cross-on
cross-off
glassy
on
off
cross-on
on
off
cross-off
cross
cross-off
cross-off
cross
cross-off
cross-off
off
off
High Tide
8:16AM1.21m
8:16PM1.53m
8:51AM1.27m
8:52PM1.50m
9:26AM1.33m
9:30PM1.43m
10:03AM1.38m
10:11PM1.34m
10:43AM1.41m
10:56PM1.23m
11:28AM1.41m
11:50PM1.11m
Low Tide
2:15AM0.13m
1:59PM0.28m
2:45AM0.11m
2:40PM0.25m
3:16AM0.11m
3:22PM0.25m
3:48AM0.13m
4:08PM0.25m
4:22AM0.18m
4:58PM0.28m
5:01AM0.25m
5:55PM0.31m
clear
clear
part cloud
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
part cloud
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:20
6:20
6:18
6:16
6:16
6:13
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
5:34
5:35
5:35
5:36
5:37
5:37
 mm
Temp °C
12
17
15
13
16
15
12
18
16
12
20
19
14
24
23
17
26
26
19
Feels °C
10
14
11
12
14
14
11
16
14
11
17
15
13
20
20
15
22
23
17
  • 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