Surf Forecasts:
Avalon-South surf forecast from 22 Aug 2026:
- Best quality surf: Tuesday 25 Aug, 1AM (local time) - 5ft (1.5m), 6s period, NE swell with cross-offshore winds.
- Most powerful swell: Wednesday 26 Aug, 1PM (local time) - 4ft (1.2m), 8s period, NE swell with 182 kJ wave energy.
- Next surfable swell (1★+): Tuesday 25 Aug, 1AM (local time) - 5ft (1.5m), 6s period with NE swell.
Best Forecast Surf Conditions for Avalon-South this week:
The surf forecast for Avalon-South over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Tuesday (Aug 25) at 1AM. The primary swell is predicted to be 1.5m and 6s period with a secondary swell of 1.3m and 6s. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Avalon-South in the next 16 days are 1.2m 8s and forecast to arrive on Wednesday (Aug 26) 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 1.4m 7s period and expected on Thursday (Aug 27) at 4AM.
| Wave Type | Time (AEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 1AM (Tue 25th Aug) | 5ft (1.5m) 6s |
| Best Surf | 1AM (Tue 25th Aug) | 5ft (1.5m) 6s |
| Most Powerful | 1PM (Wed 26th Aug) | 4ft (1.2m) 8s |
Table - best surf conditions forecast for Avalon-South over the next 16 days.
The Lowdown
Righto, Rusty here. I’ve been staring at the charts for Avalon-South, and honestly, it’s a tough stretch. For the next 16 days, the surf really doesn’t come together. The water’s sitting at 64°F, which is pretty much bang on average for this time of year, so no surprises there.
The first real shot at anything is Saturday, August 28th. We’ve got a tiny 3ft swell from the ENE, but man, it’s a weak one with a combined energy of just 166 (moderate). The morning is glassy though, which is a massive positive for a spot that can get a bit of a chop. The waves are there, but they’re ordinary. It’s a beginner-friendly break, so if you’re just wanting to get wet, it’s an option, but the swell period is only 8 seconds, so it’s a bit short and lacklustre.
Sunday morning the 29th is a similar story. 3ft from the ENE, clean with a light cross-offshore breeze, but again, the energy is moderate at 162. It’s surfable, but nothing to write home about.
After that, it’s a long, dry spell. Monday, August 31st has a tiny 2ft ENE swell, and the energy drops to 47 (weak). The next slight glimmer is on Thursday, September 3rd. The morning shows a 4ft swell from the SSE, but the period is a short 7 seconds, and the energy is a moderate 239. The wind is offshore and clean, but the swell is messy and short. By the afternoon, it’s a tiny 2ft from the ESE, and the energy is almost nothing at 17.
The rest of the forecast is a parade of weak, small swells, choppy conditions, and poor surf. The best call across the whole 16 days? It’s the Saturday morning, August 28th, at Avalon-South. It’s the only time the glassy conditions make the 3ft ENE swell even remotely appealing. It’s not a standout, it’s a consolation prize. If you’re a beginner, you might get a few soft ones. For everyone else, it’s a stretch. The break is fairly consistent, but the quality just isn’t there.
Rusty.
Short Range ForecastMostly dry. Warm (max 20°C on Sat morning, min 13°C on Sun night). Wind will be generally light. | Days 4-6 Weather SummaryLight rain (total 6mm), mostly falling on Tue night. Warm (max 23°C on Tue morning, min 12°C on Thu night). Wind will be generally light. | ||||||||||||||||||||
Saturday 22 | Sunday 23 | Monday 24 | Tuesday 25 | Wednesday 26 | Thursday 27 | Friday 28 | |||||||||||||||
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) | NE 6 | NE 6 | NE 6 | ENE 6 | NE 9 | NE 8 | NE 5 | NE 5 | NE 6 | NE 6 | ENE 7 | NE 7 | NE 8 | ENE 8 | S 6 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 |
Wave Graph  | |||||||||||||||||||||
 kJ | 9 | 9 | 9 | 14 | 20 | 18 | 31 | 49 | 148 | 80 | 91 | 167 | 178 | 171 | 111 | 100 | 111 | 111 | 111 | 105 | 111 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | off | cross-on | on | glassy | cross-on | cross | cross | cross-on | cross-off | cross | cross | cross | cross-off | cross | cross-off | cross-off | cross-on | cross-off | glassy | on | cross-off |
High Tide | 4:00PM1.28m | 4:55AM0.88m | 4:58PM1.34m | 5:47AM0.93m | 5:46PM1.40m | 6:30AM1.00m | 6:27PM1.47m | 7:07AM1.08m | 7:04PM1.52m | 7:41AM1.15m | 7:40PM1.55m | 8:15AM1.23m | 8:15PM1.55m | ||||||||
Low Tide | 11:10PM0.45m | 10:09AM0.54m | 11:58PM0.38m | 11:07AM0.49m | 00:37AM0.31m | 11:56AM0.43m | 1:12AM0.24m | 12:39PM0.37m | 1:43AM0.18m | 1:19PM0.32m | 2:14AM0.13m | 1:59PM0.28m | 2:44AM0.10m | ||||||||
 | |  |  |  |  | | | | |  |  |  | | | | | | | | | |
 | 6:26 | — | — | 6:24 | — | — | 6:24 | — | — | 6:22 | — | — | 6:20 | — | — | 6:20 | — | — | 6:18 | — | — |
 | — | 5:29 | — | — | 5:30 | — | — | 5:30 | — | — | 5:30 | — | — | 5:31 | — | — | 5:31 | — | — | 5:32 | — |
mm | — | — | — | — | — | — | — | — | — | — | 1 | 4 | 1 | — | — | — | — | — | — | — | — |
Temp °C | 20 | 19 | 16 | 16 | 17 | 16 | 19 | 18 | 16 | 23 | 21 | 16 | 17 | 16 | 15 | 17 | 16 | 15 | 20 | 19 | 17 |
Feels °C | 17 | 15 | 15 | 13 | 14 | 13 | 16 | 14 | 14 | 20 | 19 | 14 | 15 | 12 | 11 | 14 | 14 | 15 | 19 | 17 | 16 |
Swell 1 Height (m) Direction Period (s) | NE 6 | SSW 8 | NE 6 | S 9 | S 8 | S 10 | S 10 | S 10 | NE 6 | ENE 6 | ENE 7 | NE 7 | NE 8 | ENE 8 | ENE 8 | S 7 | S 7 | S 7 | ENE 8 | ENE 8 | ENE 8 |
| kJ | 9 | 22 | 9 | 274 | 131 | 242 | 156 | 128 | 112 | 56 | 91 | 167 | 178 | 171 | 103 | 138 | 114 | 77 | 111 | 105 | 111 |
Swell 2 Height (m) Direction Period (s) | S 9 | NE 6 | S 6 | ENE 6 | S 13 | NE 8 | NE 5 | E 13 | S 10 | S 9 | S 9 | S 9 | S 16 | S 11 | S 10 | ENE 8 | ENE 8 | ENE 8 | SSE 7 | S 7 | S 7 |
| kJ | 6 | 9 | 2 | 14 | 277 | 18 | 26 | 3 | 71 | 42 | 41 | 13 | 42 | 9 | 8 | 100 | 111 | 111 | 55 | 49 | 45 |
Swell 3 Height (m) Direction Period (s) | E 9 | E 9 | S 13 | S 17 | E 14 | E 14 | NE 8 | E 13 | ENE 10 | ENE 9 | S 16 | S 16 | — | S 15 | — | — | S 10 | S 10 | S 9 | S 12 | S 18 |
| kJ | 2 | 2 | 13 | 50 | 4 | 4 | 16 | 3 | 9 | 32 | 19 | 47 | — | 4 | — | — | 8 | 16 | 15 | 25 | 7 |
Wind waves Height (m) Direction Period (s) | WSW 3 | — | SE 3 | — | NE 9 | NE 4 | NE 5 | NE 5 | NE 6 | NE 6 | — | NNW 3 | — | S 2 | S 6 | S 7 | — | — | — | — | — |
| kJ | 3 | — | 6 | — | 20 | 16 | 31 | 49 | 148 | 80 | — | 6 | — | 1 | 111 | 189 | — | — | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 178 | 330 | 65 | 2 | 10 | 2 | 2 | 47 | 0 | 1 | 1 | 1 | 4 | 7 | 0 | 0 | 45 | 0 | 0 | 29 | 0 |
Best forecast wave conditions in Sydney North Coast | |||||||||||||||||||||
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 Avalon-South 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 Avalon-South Surf forecast
The above surf forecast table for Avalon-South provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Avalon-South can be found by selecting the local surf guide option on the grey menu. Our Avalon-South 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 (Avalon-South) 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 Avalon-South 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.
Avalon-South is 13 km (8 miles) from Dee Why. If you plan a holiday in Sydney North Coast, look for hotels and other accommodation in Dee Why. Dee Why has rooms for a wide range of budgets as well as car hire and transport links.
Nearest