Surf Forecasts:
Thirroul surf forecast from 2 Aug 2026:
- Best quality surf: Sunday 2 Aug, 7PM (local time) - 4.5ft (1.4m), 12s period, SE swell with cross-offshore winds.
- Most powerful swell: Sunday 2 Aug, 4PM (local time) - 4.5ft (1.4m), 12s period, SE swell with 561 kJ wave energy.
- Next surfable swell (1★+): Sunday 2 Aug, 7PM (local time) - 4.5ft (1.4m), 12s 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 Sunday (Aug 02) at 7PM. The primary swell is predicted to be 1.4m and 12s period with a secondary swell of 0.1m and 8s. Another secondary swell of 0.7m and 4s 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 1.4m 12s and forecast to arrive on Sunday (Aug 02) at 4PM. 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 Tuesday (Aug 04) at 10PM.
| Wave Type | Time (AEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 7PM (Sun 2nd Aug) | 4.5ft (1.4m) 12s |
| Best Surf | 7PM (Sun 2nd Aug) | 4.5ft (1.4m) 12s |
| Most Powerful | 4PM (Sun 2nd Aug) | 4.5ft (1.4m) 12s |
Table - best surf conditions forecast for Thirroul over the next 16 days.
The Lowdown
Alright, Rusty here again, now in feet and miles per hour. Let’s break down what’s in the water for Thirroul over the next couple of weeks. It’s a story of one standout session, then a long, slow fade.
The main one to circle on your calendar is this Sunday, the 2nd of August. We’ve got a proper pulse of SE swell hitting around 5ft, with a long 12-second period giving it some proper push. The combined energy is at 800, which is a decent, solid amount of juice. The wind is set to be a light NNW cross-offshore, so it’ll be clean. Water temp is running at 64°, which is pretty normal for this time of year. Hit Thirroul Sunday morning – it’s a beach and reef setup that handles a solid south-east groundswell. The crowd factor can pop up sometimes, but on a morning like this, the vibes will be good.
The swell drops off quickly after that. Monday the 3rd is still surfable but nothing special, with waves around 3ft. Tuesday the 4th is flat with tiny 0.7ft junk.
Wednesday the 5th through Friday the 7th sees a modest rebound. Wednesday afternoon brings a 3ft S swell (222 energy), and Thursday morning offers 4ft of S swell with light W cross-off winds (205 energy). The real gem in this little stretch is Friday morning, the 7th – glassy conditions, 4ft S swell (208 energy), and absolutely no wind. That’s a clean, fun session for the early birds.
Then it turns into a long, drawn-out drought. From Saturday the 8th all the way to the 17th, expect small, weak surf. Most days have waves under 3ft, often with strong, gusty winds. There’s a gap of more than a week where the energy is just too low, and the wind is either cross or cross-off and too strong to keep it tidy. The numbers don't lie – from the 8th to the 17th, there’s nothing worth paddling out for, unless you just want a float.
So, the clear winner is Sunday morning, August 2nd at Thirroul. That’s your big day. Friday the 7th morning is a solid second option for a glassy session. After that, it’s a long wait. It’s a quiet stretch, but the ocean has a way of turning around when you least expect it.
Rusty.
Short Range ForecastMostly dry. Warm (max 22°C on Mon morning, min 8°C on Mon night). Wind will be generally light. | Days 4-6 Weather SummaryMostly dry. Very mild (max 16°C on Thu morning, min 7°C on Wed night). Wind will be generally light. | ||||||||||||||||||||
Sunday 2 | Monday 3 | Tuesday 4 | Wednesday 5 | Thursday 6 | Friday 7 | Saturday 8 | |||||||||||||||
AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | |
Swell Height Map |  |  |  |  |  |  |  | ||||||||||||||
Wave Height (m) Direction Period (s) | SE 12 | SE 12 | SE 11 | SE 10 | SE 10 | SE 10 | SSE 10 | SSE 10 | E 8 | S 8 | S 8 | S 8 | S 8 | S 9 | S 9 | S 9 | S 9 | SSE 8 | SSE 8 | SSE 8 | SSE 8 |
Wave Graph  | |||||||||||||||||||||
 kJ | 785 | 561 | 314 | 184 | 104 | 28 | 10 | 10 | 5 | 82 | 124 | 196 | 195 | 311 | 225 | 194 | 186 | 112 | 67 | 50 | 22 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross | off | cross-off | off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross | off | glassy | cross-on | off | cross-off | cross | off |
High Tide | 10:38AM1.21m | 10:31PM1.41m | 11:18AM1.25m | 11:13PM1.31m | 12:03PM1.29m | 00:01AM1.20m | 12:53PM1.32m | 1:01AM1.09m | 1:52PM1.36m | 2:15AM1.00m | 2:58PM1.41m | 3:39AM0.97m | 4:05PM1.49m | ||||||||
Low Tide | 4:22PM0.36m | 5:02AM0.16m | 5:11PM0.39m | 5:38AM0.20m | 6:07PM0.41m | 6:19AM0.25m | 7:13PM0.42m | 7:08AM0.31m | 8:30PM0.40m | 8:07AM0.36m | 9:51PM0.34m | 9:16AM0.39m | 11:05PM0.25m | ||||||||
 | |  |  | |  | | | | | | |  | | | | | | | | | |
 | 6:48 | — | — | 6:48 | — | — | 6:47 | — | — | 6:46 | — | — | 6:46 | — | — | 6:45 | — | — | 6:43 | — | — |
 | — | 5:15 | — | — | 5:15 | — | — | 5:16 | — | — | 5:17 | — | — | 5:17 | — | — | 5:19 | — | — | 5:20 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 18 | 17 | 13 | 22 | 22 | 12 | 16 | 16 | 10 | 15 | 15 | 10 | 16 | 16 | 11 | 16 | 15 | 11 | 17 | 16 | 12 |
Feels °C | 14 | 13 | 10 | 18 | 18 | 8 | 9 | 10 | 5 | 10 | 11 | 5 | 14 | 12 | 8 | 13 | 12 | 9 | 13 | 12 | 11 |
Swell 1 Height (m) Direction Period (s) | SE 12 | SE 12 | SE 11 | SE 10 | SE 10 | SE 10 | SSE 10 | S 7 | SSW 4 | S 8 | S 8 | S 8 | S 8 | S 9 | S 9 | S 9 | S 9 | SSE 8 | SSE 8 | SSE 8 | ENE 5 |
| kJ | 785 | 561 | 314 | 184 | 104 | 28 | 10 | 4 | 4 | 82 | 80 | 196 | 195 | 311 | 225 | 194 | 186 | 112 | 67 | 50 | 18 |
Swell 2 Height (m) Direction Period (s) | E 18 | E 17 | NE 5 | E 16 | NE 5 | NE 5 | ESE 7 | SSE 10 | E 8 | E 10 | E 9 | E 9 | E 9 | E 12 | ENE 8 | ENE 7 | ENE 7 | E 7 | E 8 | ENE 7 | SSE 8 |
| kJ | 6 | 6 | 11 | 5 | 8 | 7 | 5 | 10 | 5 | 18 | 15 | 13 | 7 | 11 | 13 | 9 | 4 | 4 | 19 | 18 | 22 |
Swell 3 Height (m) Direction Period (s) | S 21 | S 21 | E 16 | NE 8 | E 16 | ESE 8 | NE 5 | E 7 | SE 11 | E 13 | E 13 | E 18 | E 12 | NE 8 | E 16 | E 16 | E 8 | ENE 6 | NE 10 | E 8 | E 8 |
| kJ | 9 | 9 | 5 | 2 | 5 | 12 | 1 | 4 | 5 | 14 | 3 | 6 | 3 | 3 | 5 | 5 | 6 | 4 | 4 | 1 | 10 |
Wind waves Height (m) Direction Period (s) | N 3 | NE 3 | NNE 5 | NNE 5 | NE 5 | WSW 3 | W 3 | WSW 3 | W 3 | WSW 3 | S 8 | W 3 | — | — | — | — | — | — | — | NE 2 | — |
| kJ | 4 | 9 | 36 | 13 | 26 | 3 | 1 | 3 | 6 | 2 | 124 | 1 | — | — | — | — | — | — | — | 1 | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 0 | 102 | 0 | 0 | 0 | 0 | 152 | 209 | 82 | 5 | 0 | 0 | 0 | 6 | 0 | 0 | 38 | 0 | 0 | 660 | 0 |
Best forecast wave conditions in Illawarra | |||||||||||||||||||||
Best forecast wave conditions in Australia | |||||||||||||||||||||
Header Global | |||||||||||||||||||||
- Map Icons:
Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
Latest Updates
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