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, 1PM (local time) - 5ft (1.5m), 12s period, SE swell with 646 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 1.5m 12s and forecast to arrive on Sunday (Aug 02) at 1PM. 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 5s period and expected on Monday (Aug 03) at 1AM.
| 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 | 1PM (Sun 2nd Aug) | 5ft (1.5m) 12s |
Table - best surf conditions forecast for Thirroul over the next 16 days.
The Lowdown
G’day, this is Rusty. Let’s break down what’s coming for Thirroul.
The water temp is sitting at 64°, which is about average for the time of year here. First few days are a bit slow, but the second week has a big payoff.
The first decent window is Sunday morning, 2nd August. We’ve got 5ft of SE swell running on a 12-second period. The wave energy is moderate at 800. Wind is light cross-off from the NNW at 9 mph, keeping it clean. This is a beach and reef setup, exposed to that SE direction, so it’ll wrap in nicely. Crowds are possible, so expect some company. This is the best of the first week.
Monday, 3rd August, drops to 3ft with a 10-second period and weak energy at 191. Surfable but ordinary. Wind is cross-off from the NW at 9 mph.
Tuesday, 4th August, is flat at 0.7ft. Leave the board at home.
Wednesday afternoon, 5th August, shows a pulse: 4ft of S swell, but with a short 6-second period. Energy is moderate at 226. The wind goes glassy from the SW at 3 mph. Clean, but the short period makes the waves a bit crumbly.
Thursday morning, 6th August, has 5ft of S swell, 8-second period, 274 energy, with a light offshore from the W. Clean.
Friday morning, 7th August, is glassy again: 5ft of S swell, 9-second period, 347 energy, and dead calm wind from the NNW. Get in early.
From Saturday, 8th August, through Wednesday, 12th August, it’s mostly small and messy. A gap of several days with no recommendations.
Now, the standout. Friday morning, 14th August, hits hard. 10ft of S swell, 10-second period, and very strong energy at 2949. The wind is glassy. This is for experienced surfers only. It’s big, powerful, and clean. Saturday morning, 15th August, is similar: 10ft from the SSE, 12-second period, very strong energy at 2681, with a light cross-off from the WSW at 3 mph. Saturday afternoon is glassy. These two days are the absolute best of the outlook. That 12-second period is a long groundswell, so it’ll shape up well on the reef.
Sunday, 16th August, backs off to 6ft of SSE swell, 11-second period, 891 energy. Still fun and clean enough.
Monday, 17th August, ends the run at 4ft of SE swell, 10-second period, 266 energy.
Bottom line: this week, hit Sunday morning the 2nd. But if you want the real deal, it’s Friday the 14th and Saturday the 15th – big, glassy, and for experts only.
This is Rusty, signing off.
Short Range ForecastMostly dry. Warm (max 22°C on Mon afternoon, min 9°C on Mon night). Wind will be generally light. | Days 4-6 Weather SummaryMostly dry. Very mild (max 17°C on Fri morning, min 8°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 | S 7 | S 8 | S 6 | S 8 | S 8 | S 9 | S 9 | S 9 | SSE 8 | SSE 8 | SSE 9 | SSE 9 | SSE 8 |
Wave Graph  | |||||||||||||||||||||
 kJ | 785 | 514 | 314 | 184 | 104 | 54 | 10 | 10 | 44 | 71 | 139 | 253 | 264 | 347 | 484 | 339 | 240 | 140 | 130 | 157 | 78 |
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 | off | off | cross-off | cross-off | glassy | cross-off | off | cross-on | off | glassy | cross-on | cross-off | cross | 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 | 21 | 22 | 13 | 17 | 16 | 10 | 16 | 15 | 9 | 16 | 16 | 11 | 17 | 16 | 11 | 17 | 16 | 12 |
Feels °C | 14 | 13 | 10 | 18 | 18 | 9 | 10 | 9 | 4 | 12 | 13 | 5 | 14 | 13 | 8 | 14 | 13 | 9 | 13 | 12 | 10 |
Swell 1 Height (m) Direction Period (s) | SE 12 | SE 12 | SE 11 | SE 10 | SE 10 | SE 10 | SSE 10 | SSE 10 | S 7 | S 8 | S 6 | S 8 | S 8 | S 9 | S 9 | S 9 | SSE 8 | SSE 8 | SSE 9 | SSE 9 | SSE 8 |
| kJ | 785 | 514 | 314 | 184 | 104 | 54 | 10 | 10 | 44 | 71 | 65 | 253 | 264 | 347 | 484 | 339 | 240 | 140 | 130 | 157 | 78 |
Swell 2 Height (m) Direction Period (s) | E 18 | E 17 | NE 5 | E 16 | NE 4 | NE 5 | ESE 7 | ESE 7 | E 8 | E 10 | E 9 | E 9 | E 10 | E 12 | ENE 8 | ENE 7 | E 12 | E 9 | S 7 | E 10 | NE 5 |
| kJ | 6 | 6 | 14 | 5 | 7 | 7 | 5 | 5 | 5 | 18 | 15 | 6 | 7 | 12 | 12 | 5 | 11 | 7 | 27 | 2 | 10 |
Swell 3 Height (m) Direction Period (s) | S 21 | S 21 | NE 8 | NE 8 | E 16 | E 15 | NE 5 | E 14 | E 13 | E 13 | SE 13 | E 12 | E 12 | NE 8 | E 16 | E 12 | NE 7 | NE 6 | E 8 | E 16 | ENE 7 |
| kJ | 9 | 9 | 3 | 2 | 5 | 4 | 1 | 4 | 14 | 14 | 7 | 3 | 3 | 2 | 5 | 3 | 2 | 2 | 5 | 5 | 5 |
Wind waves Height (m) Direction Period (s) | N 3 | NE 4 | NNE 5 | N 5 | NE 4 | WSW 3 | W 2 | WSW 3 | WSW 3 | W 3 | S 6 | — | — | — | — | — | — | — | — | ENE 7 | NNE 5 |
| kJ | 5 | 10 | 33 | 11 | 24 | 2 | 1 | 6 | 3 | 6 | 139 | — | — | — | — | — | — | — | — | 21 | 32 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 0 | 94 | 0 | 0 | 0 | 0 | 132 | 240 | 2 | 0 | 0 | 0 | 0 | 21 | 0 | 0 | 38 | 0 | 2 | 40 | 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