Surf Forecasts:
Little Austi and Main Beach surf forecast from 23 Aug 2026:
- Best quality surf: Tuesday 25 Aug, 1AM (local time) - 5.5ft (1.7m), 6s period, NE swell with offshore winds.
- Most powerful swell: Friday 28 Aug, 4PM (local time) - 4.5ft (1.3m), 11s period, SSE swell with 400 kJ wave energy.
- Next surfable swell (1★+): Monday 24 Aug, 1AM (local time) - 3.5ft (1.0m), 5s period with NE 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 Monday (Aug 24) at 1AM. The primary swell is predicted to be 1.0m and 5s period with a secondary swell of 0.2m and 9s. The wind is predicted to be offshore as the swell arrives.
The most powerful waves expected at Little Austi and Main Beach in the next 16 days are 1.3m 11s and forecast to arrive on Friday (Aug 28) at 4PM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.7m 8s period and expected on Thursday (Aug 27) at 4AM.
| Wave Type | Time (AEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 1AM (Mon 24th Aug) | 3.5ft (1.0m) 5s |
| Best Surf | 1AM (Tue 25th Aug) | 5.5ft (1.7m) 6s |
| Most Powerful | 4PM (Fri 28th Aug) | 4.5ft (1.3m) 11s |
Table - best surf conditions forecast for Little Austi and Main Beach over the next 16 days.
The Lowdown
Alright, mates. Rusty here. Let’s take a look at Little Austi and Main Beach for the next couple of weeks.
The water's sitting at about 64°, which is normal for this time of year. The first few days have the best action before the whole thing goes flat.
Sunday the 23rd kicks off with a clean 4 ft swell from the SSE under a light cross-off breeze. The energy is on the lower side, so don't expect any power. The standout stretch is Tuesday the 25th. The morning has a clean 4 ft NE swell, and the afternoon jumps to a solid 5 ft from the NE with a short 7-second period. The combined swell energy gets up to 430, which is solid. Winds stay light and cross-off all day. That's your best bet for size with decent conditions.
Wednesday the 26th is messy with onshore winds. Skip it.
We get a few glassy mornings after that. Friday the 28th morning is dead glassy with a 2 ft SSE groundswell, but the 11-second period might make it a bit fat on a beach break. Saturday the 29th morning is also glassy and clean with a 3 ft SSE swell, putting the combined energy at 251. It’s small but tidy.
From Sunday the 30th onward, the wave heights drop and stay below 3 ft, often down to 2 ft or less. There's a long flat gap that runs through to the end of the window. Monday the 7th of September finally sees a spike in swell size (4 ft from the NE), but the period is a short 5 seconds and the wind is a fresh offshore breeze. It’ll be clean but the waves will be weak and crumbly from that short period.
The best session is Tuesday the 25th afternoon. If you want tiny, glassy, and empty, hit Friday the 28th or Saturday the 29th in the early AM.
Rusty.
Short Range ForecastModerate rain (total 15mm), heaviest on Tue afternoon. Warm (max 21°C on Mon morning, min 12°C on Sun night). Wind will be generally light. | Days 5-7 Weather SummaryMostly dry. Very mild (max 17°C on Fri morning, min 11°C on Thu night). Wind will be generally light. | |||||||||||||||||||
Sun 23 | Monday 24 | Tuesday 25 | Wednesday 26 | Thursday 27 | Friday 28 | Saturday 29 | ||||||||||||||
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) | SSE 8 | NE 5 | NE 6 | NE 5 | NE 6 | NE 6 | NE 7 | NE 8 | NE 8 | NE 8 | ENE 8 | ENE 8 | NE 8 | ENE 9 | SSE 11 | SSE 11 | SSE 10 | SSE 9 | SSE 9 | SSE 9 |
Wave Graph  | ||||||||||||||||||||
 kJ | 131 | 42 | 58 | 87 | 238 | 126 | 262 | 210 | 178 | 143 | 106 | 76 | 59 | 124 | 121 | 400 | 218 | 177 | 164 | 92 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | off | cross-off | cross | off | cross-off | cross-off | glassy | cross | cross-on | cross-on | glassy | cross-on | off | glassy | on | glassy | glassy | cross-on | cross-off |
High Tide | 4:57PM1.32m | 5:49AM0.92m | 5:45PM1.38m | 6:31AM0.99m | 6:26PM1.45m | 7:08AM1.06m | 7:04PM1.50m | 7:42AM1.13m | 7:41PM1.53m | 8:16AM1.21m | 8:16PM1.53m | 8:51AM1.27m | 8:52PM1.50m | |||||||
Low Tide | 11:58PM0.37m | 11:07AM0.49m | 00:37AM0.30m | 11:56AM0.43m | 1:12AM0.23m | 12:39PM0.37m | 1:44AM0.17m | 1:19PM0.32m | 2:15AM0.13m | 1:59PM0.28m | 2:45AM0.11m | 2:40PM0.25m | 3:16AM0.11m | |||||||
 |  | |  |  |  |  |  | | |  | | | | |  | | | | | |
 | — | — | 6:26 | — | — | 6:24 | — | — | 6:22 | — | — | 6:22 | — | — | 6:20 | — | — | 6:20 | — | — |
 | 5:30 | — | — | 5:30 | — | — | 5:31 | — | — | 5:32 | — | — | 5:32 | — | — | 5:34 | — | — | 5:35 | — |
mm | — | — | — | — | — | 1 | 10 | 2 | 2 | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 17 | 14 | 21 | 19 | 16 | 19 | 16 | 16 | 16 | 15 | 14 | 15 | 15 | 14 | 17 | 15 | 12 | 17 | 16 | 13 |
Feels °C | 14 | 12 | 17 | 16 | 16 | 16 | 15 | 17 | 15 | 12 | 12 | 14 | 14 | 14 | 15 | 14 | 10 | 15 | 14 | 12 |
Swell 1 Height (m) Direction Period (s) | SSE 8 | S 10 | NE 6 | S 10 | NE 6 | NE 6 | ENE 7 | NE 8 | NE 8 | NE 8 | ENE 8 | S 8 | S 8 | S 10 | S 9 | SSE 11 | SSE 10 | SSE 9 | SSE 9 | SSE 9 |
| kJ | 131 | 196 | 58 | 94 | 145 | 91 | 168 | 210 | 178 | 143 | 106 | 313 | 182 | 271 | 99 | 400 | 218 | 177 | 164 | 92 |
Swell 2 Height (m) Direction Period (s) | S 12 | ENE 9 | S 10 | S 18 | S 10 | S 9 | S 9 | S 9 | S 15 | S 11 | S 15 | ENE 8 | NE 8 | ENE 9 | ENE 8 | NE 8 | NE 8 | NE 8 | NE 8 | ENE 9 |
| kJ | 236 | 8 | 121 | 24 | 68 | 42 | 27 | 14 | 67 | 9 | 4 | 76 | 59 | 124 | 88 | 69 | 67 | 65 | 72 | 68 |
Swell 3 Height (m) Direction Period (s) | E 15 | S 18 | ENE 8 | E 13 | S 18 | NE 9 | S 16 | S 16 | — | — | — | S 15 | S 14 | S 14 | SSE 11 | S 9 | SSW 10 | S 10 | S 10 | S 10 |
| kJ | 4 | 6 | 7 | 3 | 6 | 23 | 19 | 21 | — | — | — | 18 | 61 | 33 | 121 | 40 | 35 | 18 | 17 | 2 |
Wind waves Height (m) Direction Period (s) | NE 6 | NE 5 | NNE 5 | NE 5 | NE 6 | NE 6 | NE 7 | — | S 4 | S 6 | S 8 | — | — | — | — | — | — | S 4 | — | — |
| kJ | 9 | 42 | 97 | 87 | 238 | 126 | 262 | — | 18 | 122 | 316 | — | — | — | — | — | — | 9 | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 8 | 0 | 0 | 55 | 0 | 0 | 0 | 0 | 1 | 29 | 5 | 0 | 92 | 0 | 0 | 13 | 0 | 0 | 38 | 0 |
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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