Surf Forecasts:
Little Austi and Main Beach surf forecast from 12 Jul 2026:
- Best quality surf: Sunday 19 Jul, 7PM (local time) - 10ft (3.0m), 11s period, E swell with glassy winds.
- Most powerful swell: Sunday 19 Jul, 4AM (local time) - 11ft (3.5m), 12s period, E swell with 2,976 kJ wave energy.
- Next surfable swell (1★+): Wednesday 15 Jul, 1AM (local time) - 3ft (0.9m), 5s period with SSW swell.
Best Forecast Surf Conditions for Little Austi and Main Beach this week:
The surf forecast for Little Austi and Main Beach over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Wednesday (Jul 15) at 1AM. The primary swell is predicted to be 0.9m and 5s period with a secondary swell of 0.1m and 10s. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Little Austi and Main Beach in the next 16 days are 3.5m 12s and forecast to arrive on Sunday (Jul 19) at 4AM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 3.5m 11s period and expected on Wednesday (Jul 15) at 1PM.
| Wave Type | Time (AEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 1AM (Wed 15th Jul) | 3ft (0.9m) 5s |
| Best Surf | 7PM (Sun 19th Jul) | 10ft (3.0m) 11s |
| Most Powerful | 4AM (Sun 19th Jul) | 11ft (3.5m) 12s |
Table - best surf conditions forecast for Little Austi and Main Beach over the next 16 days.
Alright, Rusty here, lookin’ at this stretch of water. Gotta be straight with you – it’s a long, slow burn before we get any real juice.
The spot is Little Austi and Main Beach. The water temp is about average for the year, so no weirdness there. The problem is, for the first week, the wind is just a pain. A lot of cross-onshore junk.
From Sunday the 12th all the way through Saturday the 18th, it’s mostly flat or tiny, with weak, choppy conditions. Combined energy is barely breaking 60, and the swell is under 2ft. A big gap of nothing.
The first real rumble of something happens on Sunday the 19th of July. Swell jumps to 10ft from the east, period of 11 seconds – that’s a proper groundswell. The combined energy is a massive 2624 (strong to very strong). It’s still a little cross-onshore, but only a light breeze, so it’s cleaner than anything before. This is big, expert-only. The reef might hold it better than the beach.
The absolute best window, the one you want to circle, is Monday morning the 20th of July. The swell is a still-strong 8ft from the east, 10-second period, and the wind swings light offshore from the WNW. That’s clean. The energy is still 1166. For experienced surfers, this is the session. The break is *fairly consistent*, and crowds are *sometimes* a thing, but clean 8ft east swell with offshore wind is worth the company.
After that, the rest of the week has some clean, glassy mornings, but the swell drops from about 6ft down to 4ft. Good, fun waves for intermediates, but nothing with the punch of the 20th. The 22nd and 23rd mornings are glassy – dead flat calm – with a clean 5ft to 4ft east swell.
By the 25th, it’s fading back to knee-high dribble, with combined energy dropping under 200. The last few days are just small, clean leftovers.
So, bottom line: the first week is a flat, choppy mess. The champion day is Monday the 20th of July. Sunday the 19th is the big, raw alternative. The middle of the second week has some clean but smaller options. That’s the story.
Rusty.
Short Range ForecastMostly dry. Very mild (max 18°C on Mon morning, min 9°C on Sun night). Wind will be generally light. | Days 5-7 Weather SummaryHeavy rain (total 22mm), heaviest during Thu morning. Very mild (max 15°C on Wed afternoon, min 12°C on Wed night). Wind will be generally light. | ||||||||||||||||||||
Sun 12 | Monday 13 | Tuesday 14 | Wednesday 15 | Thursday 16 | Friday 17 | Saturday 18 | |||||||||||||||
PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | |
Swell Height Map |  |  |  |  |  |  |  |  | |||||||||||||
Wave Height (m) Direction Period (s) | ESE 10 | ESE 9 | ESE 9 | SE 8 | S 11 | S 10 | S 11 | SSW 5 | S 9 | S 9 | S 8 | SSE 7 | SSE 7 | ESE 8 | E 9 | E 8 | E 8 | ESE 9 | E 11 | E 12 | E 11 |
Wave Graph  | |||||||||||||||||||||
 kJ | 54 | 16 | 7 | 3 | 0 | 0 | 0 | 51 | 0 | 0 | 0 | 557 | 282 | 244 | 339 | 324 | 356 | 708 | 1509 | 2807 | 2612 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | off | cross-off | cross-off | off | off | cross-off | cross-off | cross | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on |
High Tide | 6:18PM1.70m | 7:10AM1.09m | 7:12PM1.77m | 8:06AM1.12m | 8:05PM1.81m | 8:57AM1.15m | 8:55PM1.80m | 9:47AM1.18m | 9:44PM1.74m | 10:35AM1.20m | 10:31PM1.62m | 11:23AM1.22m | 11:18PM1.47m | 12:12PM1.24m | |||||||
Low Tide | 1:13AM0.04m | 12:36PM0.27m | 2:07AM-0.03m | 1:31PM0.24m | 2:57AM-0.07m | 2:25PM0.23m | 3:45AM-0.07m | 3:17PM0.24m | 4:30AM-0.03m | 4:10PM0.28m | 5:13AM0.04m | 5:05PM0.33m | 5:54AM0.13m | ||||||||
 |  | | | |  | | | | |  |  |  | | | | | | |  | | |
 | — | — | 7:01 | — | — | 7:00 | — | — | 7:00 | — | — | 7:00 | — | — | 6:58 | — | — | 6:58 | — | — | 6:58 |
 | 5:01 | — | — | 5:01 | — | — | 5:02 | — | — | 5:02 | — | — | 5:04 | — | — | 5:05 | — | — | 5:05 | — | 5:06 |
mm | — | — | — | — | — | — | — | — | — | — | 4 | 4 | 4 | 2 | 2 | 3 | 2 | 1 | — | — | — |
Temp °C | 13 | 11 | 18 | 17 | 13 | 18 | 17 | 14 | 14 | 15 | 14 | 13 | 15 | 15 | 15 | 14 | 14 | 15 | 15 | 14 | 15 |
Feels °C | 7 | 7 | 13 | 12 | 10 | 13 | 13 | 10 | 7 | 9 | 8 | 9 | 12 | 12 | 12 | 11 | 10 | 11 | 11 | 11 | 13 |
Swell 1 Height (m) Direction Period (s) | ESE 10 | SSW 6 | SSW 11 | SSW 11 | SSW 7 | SSW 6 | S 11 | S 10 | — | — | S 16 | S 14 | E 8 | S 6 | E 9 | E 8 | E 8 | S 10 | E 11 | E 12 | E 11 |
| kJ | 54 | 13 | 13 | 24 | 5 | 4 | 22 | 33 | — | — | 5 | 4 | 12 | 67 | 339 | 324 | 356 | 17 | 1509 | 2807 | 2612 |
Swell 2 Height (m) Direction Period (s) | SSE 8 | ESE 9 | ESE 9 | SE 8 | S 11 | S 10 | S 6 | E 10 | — | — | — | SSW 14 | S 13 | S 12 | S 11 | S 11 | S 10 | S 19 | S 9 | S 18 | S 17 |
| kJ | 6 | 16 | 7 | 3 | 9 | 8 | 3 | 2 | — | — | — | 18 | 13 | 25 | 9 | 9 | 8 | 30 | 6 | 25 | 86 |
Swell 3 Height (m) Direction Period (s) | — | S 11 | S 7 | — | — | S 16 | — | — | — | — | — | — | SSW 13 | S 17 | S 18 | S 17 | S 21 | S 18 | S 18 | S 9 | SE 17 |
| kJ | — | 9 | 4 | — | — | 5 | — | — | — | — | — | — | 33 | 22 | 6 | 6 | 35 | 6 | 26 | 6 | 12 |
Wind waves Height (m) Direction Period (s) | WSW 4 | W 4 | W 3 | WNW 3 | NW 2 | NW 3 | WSW 3 | SSW 5 | S 9 | S 9 | S 8 | SSE 7 | SSE 7 | ESE 8 | S 6 | S 9 | SSE 5 | ESE 9 | — | — | — |
| kJ | 28 | 13 | 6 | 3 | 1 | 3 | 2 | 51 | 1247 | 1665 | 736 | 557 | 282 | 244 | 29 | 39 | 42 | 708 | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 1 | 111 | 68 | 137 | 345 | 345 | 282 | 0 | 89 | 89 | 89 | 89 | 50 | 13 | 13 | 50 | 13 | 13 | 13 | 7 | 5 |
Best forecast wave conditions in Illawarra | |||||||||||||||||||||
Best forecast wave conditions in Australia | |||||||||||||||||||||
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Information about the Little Austi and Main Beach Surf forecast
The above surf forecast table for Little Austi and Main Beach provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Little Austi and Main Beach can be found by selecting the local surf guide option on the grey menu. Our Little Austi and Main Beach 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 (Little Austi and Main Beach) 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 Little Austi and Main Beach 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 Little Austi and Main Beach, camping, hotels and holiday cottages in Illawarra, consider staying in Wollongong which is 15 km (9 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 22 km (14 miles) away, Engadine, Caringbah and Cronulla.
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