Surf Forecasts:
Thirroul surf forecast from 18 Jul 2026:
- Best quality surf: Sunday 19 Jul, 7PM (local time) - 5ft (1.6m), 10s period, ENE swell with glassy winds.
- Most powerful swell: Friday 24 Jul, 4AM (local time) - 11ft (3.5m), 10s period, S swell with 2,269 kJ wave energy.
- Next surfable swell (1★+): Sunday 19 Jul, 7PM (local time) - 5ft (1.6m), 10s period with ENE 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 (Jul 19) at 7PM. The primary swell is predicted to be 1.6m and 10s period with a secondary swell of 0.5m and 13s. The wind is predicted to be glassy as the swell arrives.
The most powerful waves expected at Thirroul in the next 16 days are 3.5m 10s and forecast to arrive on Friday (Jul 24) at 4AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.8m 4s period and expected on Monday (Jul 20) at 10PM.
| Wave Type | Time (AEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 7PM (Sun 19th Jul) | 5ft (1.6m) 10s |
| Best Surf | 7PM (Sun 19th Jul) | 5ft (1.6m) 10s |
| Most Powerful | 4AM (Fri 24th Jul) | 11ft (3.5m) 10s |
Table - best surf conditions forecast for Thirroul over the next 16 days.
Short Range ForecastMostly dry. Very mild (max 17°C on Mon morning, min 10°C on Sun night). Wind will be generally light. | Days 4-6 Weather SummarySome drizzle, heaviest during Thu morning. Warm (max 22°C on Wed morning, min 8°C on Thu night). Winds increasing (light winds from the NW on Tue night, fresh winds from the S by Thu afternoon). | ||||||||||||||||||||
Saturday 18 | Sunday 19 | Monday 20 | Tuesday 21 | Wednesday 22 | Thursday 23 | Friday 24 | |||||||||||||||
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) | S 10 | E 7 | E 8 | ENE 11 | ENE 11 | ENE 10 | ENE 11 | ENE 11 | ENE 10 | ENE 10 | ENE 10 | ENE 10 | ENE 10 | ENE 9 | ENE 9 | S 7 | S 9 | S 8 | S 10 | S 10 | S 9 |
Wave Graph  | |||||||||||||||||||||
 kJ | 46 | 44 | 117 | 705 | 619 | 540 | 487 | 487 | 396 | 331 | 281 | 214 | 172 | 130 | 71 | 225 | 874 | 545 | 1594 | 1065 | 363 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | cross | cross | on | off | cross-off | cross | cross-off | cross-off | cross | off | off | cross-off | off | cross | cross | cross-off | cross | cross-on | cross-off |
High Tide | 11:23AM1.22m | 11:18PM1.47m | 12:12PM1.24m | 00:06AM1.30m | 1:01PM1.26m | 00:57AM1.14m | 1:53PM1.27m | 1:54AM1.01m | 2:46PM1.28m | 3:00AM0.92m | 3:41PM1.30m | 4:12AM0.87m | 4:35PM1.33m | ||||||||
Low Tide | 5:05PM0.33m | 5:54AM0.13m | 6:03PM0.40m | 6:34AM0.22m | 7:05PM0.46m | 7:14AM0.31m | 8:15PM0.49m | 7:57AM0.39m | 9:28PM0.50m | 8:45AM0.45m | 10:38PM0.47m | 9:39AM0.49m | 11:37PM0.42m | ||||||||
 |  |  | | |  | | | | | | | | | |  | | | | | | |
 | 6:58 | — | — | 6:58 | — | — | 6:58 | — | — | 6:56 | — | — | 6:56 | — | — | 6:56 | — | — | 6:56 | — | — |
 | — | 5:05 | — | — | 5:06 | — | — | 5:07 | — | — | 5:07 | — | — | 5:07 | — | — | 5:08 | — | — | 5:08 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 | — | — | — | — | — |
Temp °C | 16 | 16 | 15 | 15 | 15 | 12 | 17 | 17 | 12 | 18 | 17 | 13 | 22 | 21 | 14 | 15 | 13 | 11 | 13 | 13 | 10 |
Feels °C | 15 | 14 | 12 | 13 | 14 | 12 | 14 | 14 | 11 | 14 | 14 | 11 | 19 | 18 | 10 | 10 | 5 | 6 | 9 | 10 | 8 |
Swell 1 Height (m) Direction Period (s) | E 6 | E 7 | E 8 | ENE 11 | ENE 11 | ENE 10 | ENE 11 | ENE 11 | ENE 10 | ENE 10 | ENE 10 | ENE 10 | ENE 10 | ENE 9 | ENE 9 | ENE 9 | ENE 9 | ENE 9 | S 10 | S 10 | S 9 |
| kJ | 31 | 44 | 117 | 705 | 619 | 540 | 487 | 487 | 396 | 331 | 281 | 214 | 172 | 130 | 71 | 42 | 29 | 15 | 1079 | 843 | 363 |
Swell 2 Height (m) Direction Period (s) | S 10 | S 9 | S 8 | S 17 | S 16 | S 12 | S 12 | S 11 | S 11 | S 10 | S 10 | S 10 | SSE 10 | S 11 | S 10 | — | E 8 | SSE 17 | ENE 9 | ENE 9 | ENE 9 |
| kJ | 46 | 27 | 22 | 149 | 126 | 110 | 139 | 93 | 57 | 35 | 31 | 17 | 19 | 21 | 8 | — | 1 | 30 | 8 | 8 | 8 |
Swell 3 Height (m) Direction Period (s) | SSE 21 | SSE 20 | SSE 18 | SE 17 | SE 16 | SE 16 | SSE 15 | SE 15 | SE 14 | SSE 14 | SE 14 | SE 13 | SE 13 | S 12 | — | — | — | E 8 | — | — | — |
| kJ | 42 | 38 | 64 | 12 | 11 | 10 | 23 | 8 | 8 | 21 | 7 | 7 | 6 | 3 | — | — | — | 1 | — | — | — |
Wind waves Height (m) Direction Period (s) | S 3 | S 3 | — | S 3 | — | — | — | NNE 3 | N 4 | N 4 | NE 4 | — | — | — | W 3 | S 7 | S 9 | S 8 | S 10 | S 10 | — |
| kJ | 6 | 2 | — | 6 | — | — | — | 6 | 14 | 18 | 16 | — | — | — | 8 | 225 | 874 | 545 | 1594 | 1065 | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 5 | 5 | 2 | 5 | 36 | 0 | 0 | 2 | 0 | 0 | 98 | 0 | 0 | 0 | 0 | 68 | 328 | 5 | 27 | 36 | 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)
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