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Surf Forecasts:

Thirroul surf break

Thirroul surfForecast / NSW – Illawarra / Australia

information circle16 Day Weather and Surf, issued 10 pm Monday 16 Mar 2026 AEDT
Forecast update in hr  min  s Forecast update imminent
Thirroul surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Thirroul sea temperature is
23.1° C
 (Which is slightly warmer than usual)

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 Tuesday (Mar 17) at 8AM. The primary swell is predicted to be 1.4m and 7s period with a secondary swell of 0.9m and 6s. Another secondary swell of 0.5m and 12s 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 1.5m 6s and forecast to arrive on Sunday (Mar 22) at 8AM. Winds are predicted to be cross-shore at the time the swell arrives.

Wave TypeTime (AEDT) & Date Wave Height & Period
Next good surf (1 star+) 8AM (Tue 17th Mar)4.5ft (1.4m) 7s
Best Surf 8AM (Tue 17th Mar)4.5ft (1.4m) 7s
Most Powerful 8AM (Sun 22nd Mar)5ft (1.5m) 6s

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

Updates in  hr  min  s Forecast update imminent 
16 DaysHourly
Print Table

Short Range Forecast Moderate rain (total 11mm), heaviest on Wed morning. Warm (max 28°C on Tue morning, min 19°C on Wed night). Wind will be generally light.

Days 3-6 Weather Summary Heavy rain (total 39mm), heaviest during Sun afternoon. Warm (max 23°C on Fri afternoon, min 17°C on Sun afternoon). Winds increasing (calm on Sat morning, fresh winds from the SSW by Sat night).

Tuesday
17
Wednesday
18
Thursday
19
Friday
20
Saturday
21
Sunday
22
Mon
23
NightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPM
Rating
(10 max)
2
1
1
0
0
0
1
0
0
1
0
0
1
1
1
0
0
0
0
0
0
Swell
Height Map
See all maps
Wave Height (m) & direction (?)
1.6
NE
0.9
NE
0.5
S
1.1
SSE
1
SSE
0.6
S
0.6
S
0.5
S
0.6
S
1
SE
1
SE
0.8
SE
0.5
ENE
0.5
ENE
0.5
ENE
1.4
S
1.4
SSE
0.6
E
0.5
E
0.6
SSE
0.5
S
Period(s) (?)67116668885668886610966
Wave
Graph
(?)Metric surfscale
Energy kJ (?)184675677682843344453694638353712715068392918
Wind
(km/h)
10
NNW
10
NNW
10
SW
15
S
15
S
15
S
10
SW
10
SSW
10
S
15
SW
15
SSE
15
SE
5
S
5
SE
5
W
30
SSW
25
SSW
25
S
15
E
10
ESE
10
E
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
cross-
off		cross-
off		cross-
off		cross-
on		cross-
on		cross-
on		cross-
off		crosscrosscross-
off		cross-
on		cross-
on		glassglasscross-
off		crosscrosscrossononon
High Tide
/ height (m)
7:49AM
1.50
8:27PM
1.26
8:29AM
1.53
9:03PM
1.37
9:10AM
1.52
9:40PM
1.46
9:53AM
1.47
10:19PM
1.52
10:37AM
1.39
11:00PM
1.55
11:25AM
1.28
11:45PM
1.55
12:19PM
1.15
Low Tide
/ height (m)
1:32AM
0.34
2:21PM
0.12
2:16AM
0.26
2:55PM
0.07
3:00AM
0.19
3:29PM
0.06
3:46AM
0.14
4:04PM
0.08
4:33AM
0.11
4:41PM
0.13
5:24AM
0.12
5:20PM
0.21
6:19AM
0.16
6:04PM
0.30
Tuesday
17
Wednesday
18
Thursday
19
Friday
20
Saturday
21
Sunday
22
Mon
23
Sunrise-6:56--6:56--6:56--6:58--6:58--7:00--7:01-
Sunset--7:12--7:10--7:09--7:07--7:07--7:06--7:04
cloud
cloud
cloud
light rain
mod rain
rain showers
cloud
cloud
cloud
rain showers
rain showers
thunderstorm
thunderstorm
part cloud
mod rain
thunderstorm
light rain
heavy rain
rain showers
rain showers
thunderstorm
Rain (mm)
---461---2342-753132252
Temp. °C232827222021212020202123212323201918212223
Feels °C (?)232725222021222120202123222524211616202325
  • 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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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.

View detailed surf forecast for Thirroul at:
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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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