Surf Forecasts:
Thirroul surf forecast from 4 Jul 2026:
- Best quality surf: Wednesday 8 Jul, 10PM (local time) - 7ft (2.2m), 12s period, SE swell with cross-offshore winds.
- Most powerful swell: Sunday 5 Jul, 4PM (local time) - 10ft (3.0m), 12s period, SSE swell with 2,598 kJ wave energy.
- Next surfable swell (1★+): Wednesday 8 Jul, 10PM (local time) - 7ft (2.2m), 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 Wednesday (Jul 08) at 10PM. The primary swell is predicted to be 2.2m and 12s period with a secondary swell of 0.6m and 11s. Another secondary swell of 2.2m and 11s 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 3.0m 12s and forecast to arrive on Sunday (Jul 05) at 4PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.3m 5s period and expected on Wednesday (Jul 08) at 1PM.
| Wave Type | Time (AEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 10PM (Wed 8th Jul) | 7ft (2.2m) 12s |
| Best Surf | 10PM (Wed 8th Jul) | 7ft (2.2m) 12s |
| Most Powerful | 4PM (Sun 5th Jul) | 10ft (3.0m) 12s |
Table - best surf conditions forecast for Thirroul over the next 16 days.
Updates in hr min s Forecast update imminent
Imperial Version
Alright folks, Rusty here. Let’s have a look at what’s coming down the line for the next couple of weeks.
Right off the bat, it’s a bit of a rough start at Thirroul. We’ve got a decent amount of swell pushing in – up to 10ft on Sunday arvo – but the wind is just a disaster. It’s cross and cross-onshore with a heavy chop, and the wave quality is shot. Honestly, from Sunday through to Tuesday, you’re looking at a pretty grim scene. The energy is there (over 2600 in the tank at one point), but it’s wasted. Swell direction is out of the S to SSE, coming in at 10-12 seconds, so it’s got a bit of grunt, but the wind just kills it. Water temp is sitting near average for this time of year, nothing to write home about.
We hit a wall of small, clean nothingness from around the 12th to the 13th. The swell drops right off to 1-2ft, so you can leave the boards in the shed for that stretch. A few days of flat, sunny, but empty water.
Now, things start to look up mid-month. Thursday the 16th afternoon is a real standout. Thirroul cleans right up with glassy conditions, a solid 5ft of S swell at 10 seconds, and the combined energy hits 1044 – a clean, powerful little pulse. That’s the best wave of the whole run, no question. For the experienced crew, that’s a proper session. The SW wind is light, and it’s glassy.
Then onto the following Monday, the 20th of July. We get another bright spot. Gentle offshore winds from the W with a 5ft S swell at 10 seconds, and energy at 504. That’s a really clean, well-shaped day. The swell direction (S) matches what this spot likes, and with the wind so clean, it’ll be a treat.
The second week also has a few smaller, cleaner mornings with offshores around the 18th and 19th, but the swell is only 3-4ft, so it’s more of a longboard or foamie sort of day. Nothing wrong with that, just not the highlight.
So to sum it up: the first week is a write-off thanks to wind. The real gem is Thursday the 16th arvo, with Monday the 20th morning running a close second. Get out there for those.
Rusty.
Short Range ForecastLight rain (total 6mm), mostly falling on Sun afternoon. Very mild (max 15°C on Mon morning, min 11°C on Sat night). Mainly fresh winds. | Days 5-7 Weather SummaryLight rain (total 2mm), mostly falling on Tue night. Very mild (max 15°C on Wed morning, min 10°C on Wed night). Wind will be generally light. | ||||||||||||||||||||
Sunday 5 | Monday 6 | Tuesday 7 | Wednesday 8 | Thursday 9 | Friday 10 | Sat 11 | |||||||||||||||
Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | |
Swell Height Map |  |  |  |  |  |  |  |  | |||||||||||||
Wave Height (m) Direction Period (s) | S 11 | S 11 | SSE 12 | SSE 10 | SSE 10 | SSE 10 | SSE 10 | SSE 10 | SE 11 | SE 11 | SE 10 | ESE 12 | SE 11 | SE 10 | SE 10 | SE 9 | SE 9 | SE 9 | SE 9 | SE 9 | SE 9 |
Wave Graph  | |||||||||||||||||||||
 kJ | 736 | 1704 | 2598 | 1636 | 1100 | 1139 | 1172 | 1249 | 1868 | 1538 | 1216 | 871 | 664 | 716 | 611 | 430 | 359 | 402 | 339 | 225 | 168 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross | cross-on | cross-on | cross-on | cross-on | cross | cross | cross | cross | cross | cross-on | cross-off | cross | cross-on | cross-off | cross | glassy | off | off | off |
High Tide | 10:58PM1.42m | 11:57AM1.11m | 11:39PM1.34m | 12:44PM1.16m | 00:26AM1.26m | 1:34PM1.23m | 1:22AM1.17m | 2:29PM1.31m | 2:30AM1.09m | 3:26PM1.40m | 3:45AM1.05m | 4:24PM1.50m | 5:00AM1.03m | 5:22PM1.60m | |||||||
Low Tide | 5:44AM0.19m | 5:29PM0.48m | 6:21AM0.20m | 6:26PM0.50m | 7:02AM0.22m | 7:32PM0.50m | 7:48AM0.25m | 8:46PM0.46m | 8:41AM0.28m | 10:01PM0.38m | 9:39AM0.30m | 11:11PM0.27m | 10:39AM0.31m | ||||||||
 |  |  |  | |  | | | |  | |  |  | | |  | | | | | | |
 | — | 7:03 | — | — | 7:01 | — | — | 7:01 | — | — | 7:01 | — | — | 7:01 | — | — | 7:01 | — | — | 7:01 | — |
 | — | — | 4:58 | — | — | 4:59 | — | — | 4:59 | — | — | 5:00 | — | — | 5:00 | — | — | 5:00 | — | — | 5:00 |
mm | — | — | 2 | 2 | — | — | — | — | 2 | 2 | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 12 | 14 | 14 | 14 | 15 | 15 | 14 | 14 | 14 | 14 | 15 | 14 | 10 | 15 | 15 | 13 | 15 | 15 | 12 | 18 | 18 |
Feels °C | 9 | 8 | 8 | 9 | 10 | 10 | 10 | 10 | 9 | 10 | 11 | 10 | 7 | 13 | 13 | 11 | 13 | 14 | 11 | 15 | 16 |
Swell 1 Height (m) Direction Period (s) | S 11 | ENE 8 | ENE 8 | E 13 | E 13 | E 16 | S 11 | SE 10 | SE 11 | SE 11 | SE 10 | ESE 12 | SE 11 | SE 10 | SE 10 | SE 9 | SE 9 | SE 9 | SE 9 | SE 9 | SE 9 |
| kJ | 371 | 7 | 6 | 3 | 3 | 5 | 184 | 1019 | 1868 | 1538 | 1216 | 871 | 664 | 716 | 611 | 430 | 359 | 402 | 339 | 225 | 168 |
Swell 2 Height (m) Direction Period (s) | ENE 7 | E 14 | — | — | E 16 | E 16 | — | SE 13 | S 10 | S 10 | ESE 14 | S 15 | ESE 12 | ESE 10 | S 21 | S 20 | SE 12 | S 15 | S 17 | S 15 | — |
| kJ | 5 | 4 | — | — | 5 | 5 | — | 388 | 108 | 49 | 356 | 4 | 341 | 106 | 9 | 8 | 122 | 4 | 5 | 4 | — |
Swell 3 Height (m) Direction Period (s) | E 8 | — | — | — | — | — | — | — | — | S 15 | — | — | S 19 | S 18 | — | S 16 | S 15 | S 15 | S 20 | — | S 16 |
| kJ | 1 | — | — | — | — | — | — | — | — | 4 | — | — | 7 | 6 | — | 5 | 4 | 4 | 8 | — | 5 |
Wind waves Height (m) Direction Period (s) | S 11 | S 11 | SSE 12 | SSE 10 | SSE 10 | SSE 10 | SSE 10 | SSE 10 | — | — | SSW 6 | SSE 9 | — | — | — | — | — | — | — | — | NW 3 |
| kJ | 736 | 1704 | 2598 | 1636 | 1100 | 1139 | 1172 | 1249 | — | — | 123 | 475 | — | — | — | — | — | — | — | — | 2 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 0 | 5 | 140 | 190 | 118 | 48 | 48 | 5 | 11 | 11 | 5 | 36 | 0 | 2 | 5 | 0 | 2 | 0 | 0 | 0 | 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