Thirroul Surf Break

Lat Long: 34.32° S 150.93° E

Thirroul Surf Forecast and Surf Report

Issued: 3 am 14 Jul 2026 (local time)

Forecast update in  hr  min

Today's Thirroul sea temperature is
18.2° 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 14 Jul 2026:

  • Best quality surf: Wednesday 15 Jul, 7AM (local time) - 8ft (2.5m), 9s period, S swell with cross-offshore winds.
  • Most powerful swell: Wednesday 15 Jul, 10AM (local time) - 8ft (2.5m), 10s period, S swell with 1,327 kJ wave energy.
  • Next surfable swell (1★+): Wednesday 15 Jul, 4AM (local time) - 2.5ft (0.7m), 10s 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 Wednesday (Jul 15) at 4AM. The primary swell is predicted to be 0.7m and 10s period with a secondary swell of 0.1m 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 2.5m 10s and forecast to arrive on Wednesday (Jul 15) at 10AM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.9m 4s period and expected on Tuesday (Jul 14) at 7PM.

Wave TypeTime (AEST) & Date Wave Height & Period
Next good surf (1 star+) 4AM (Wed 15th Jul)2.5ft (0.7m) 10s
Best Surf 7AM (Wed 15th Jul)8ft (2.5m) 9s
Most Powerful10AM (Wed 15th Jul)8ft (2.5m) 10s

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


The Lowdown

G'day, Rusty here, and I've been staring at the charts for the South Coast region, specifically Thirroul. Honestly, it's a bit of a slow burn for the next week, but there's a proper run of clean swell coming through in the second week that's got me excited. The water temp is sitting at about 65°, which is pretty standard for this time of year.

Let's start with what's on offer. The first few days are a write-off. Tuesday the 14th has tiny waves, barely a ripple. Wednesday and Thursday the 15th and 16th see a pulse of 8ft to 7ft south swell, but the wind is all wrong – cross-shore and cross-onshore, making it a choppy mess. The energy is moderate to strong, with readings of 2174 and 866, but it's not doing us any favours. Friday through to Sunday the 17th to 19th are all poor, with small, weak waves and messy winds. There's a four-day gap here with nothing worth paddling out for.

Things start to turn around on Monday the 20th. The morning brings a clean 5ft swell from the east-northeast with a 10-second period and glassy conditions. The energy is moderate at 558. This is a solid, fun option for a paddle. The glassy conditions carry into Tuesday morning the 21st as well, with a similar 5ft ENE swell, but the afternoon gets blown out.

Now, here's the standout. The real action kicks off on Thursday the 23rd. Thirroul is the spot. We've got a 6ft swell from the east with a 12-second period, generating strong wave energy (851). The morning is clean with a light cross-offshore breeze from the southwest. This is offering excellent shape and power. The crowd factor is listed as "sometimes," so you might have a few others out, but it's worth it. This is a solid intermediate level, pushing 6ft, so it's a bit too much for beginners.

Friday the 24th and Saturday the 25th are also looking prime. Friday morning has a similar 6ft east swell with a 12-second period and clean conditions. Saturday morning delivers 5ft from the east, again 12-second period, and a clean offshore wind from the west-northwest, giving us 742 of moderate to strong energy. This is a fantastic run of surf.

The quality holds through Sunday the 26th into Monday the 27th with 5ft to 4ft east swells, long periods, and clean conditions, though the energy drops to moderate. By Tuesday the 28th and Wednesday the 29th, the swell is fading to around 4ft and then 2ft, but the winds stay favorable, cleaning up what's left.

So, to wrap it up: the first week is a write-off with a few days of poor, choppy surf. The absolute best on offer is the Thursday 23rd through Saturday 25th window, with clean, powerful east swells and solid energy. That's your window. If you can wait, it'll be worth it.

Rusty.

Short Range Forecast

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

Days 4-6 Weather Summary

Mostly dry. Very mild (max 16°C on Fri morning, min 11°C on Fri night). Wind will be generally light.

Tuesday
14
Wednesday
15
Thursday
16
Friday
17
Saturday
18
Sunday
19
Monday
20
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
0
0
0
3
0
3
1
0
0
0
0
1
0
0
0
0
1
2
3
3
2
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
0.1
S
16
0.2
S
11
0.3
S
11
2.5
S
10
2
S
9
1.8
S
8
2
S
8
1.5
S
8
1.4
SSE
7
1.1
S
5
0.8
S
8
0.7
S
10
0.9
S
10
0.5
S
9
1
E
8
1.4
ENE
10
1.6
ENE
11
1.6
ENE
10
1.5
ENE
10
1.5
ENE
10
1.4
ENE
10
Wave Graph
Metric surfscale
Energy kJ
5
10
20
1327
580
381
542
258
158
71
78
90
148
41
114
334
551
511
451
424
373
Wind (km/h)
15
WNW
25
W
15
W
15
SSW
15
S
10
SW
20
S
25
S
15
SSW
20
S
15
SSE
15
SSW
20
S
15
S
15
SSW
15
S
15
SSE
5
S
5
SSE
5
E
5
WNW
Wind State
off
off
cross-off
cross
cross-on
cross-off
cross
cross-on
cross
cross
cross-on
cross-off
cross
cross-on
cross
cross
cross-on
cross
glassy
glassy
off
High Tide
8:05PM1.81m
8:57AM1.15m
8:55PM1.80m
9:47AM1.18m
9:44PM1.74m
10:35AM1.20m
10:31PM1.62m
11:23AM1.22m
11:18PM1.47m
12:12PM1.24m
00:06AM1.30m
1:01PM1.26m
00:57AM1.14m
Low Tide
1:31PM0.24m
2:57AM-0.07m
2:25PM0.23m
3:45AM-0.07m
3:17PM0.24m
4:30AM-0.03m
4:10PM0.28m
5:13AM0.04m
5:05PM0.33m
5:54AM0.13m
6:03PM0.40m
6:34AM0.22m
7:05PM0.46m
part cloud
part cloud
clear
clear
clear
clear
clear
part cloud
part cloud
part cloud
clear
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
7:00
7:00
7:00
6:58
6:58
6:58
6:58
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
5:02
5:04
5:04
5:05
5:05
5:06
5:07
 mm
Temp °C
18
17
13
15
14
11
16
15
14
16
15
13
15
15
13
15
15
14
16
16
14
Feels °C
13
11
8
10
10
8
11
10
11
13
13
11
12
12
10
12
12
13
15
15
13
  • 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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