Surf Forecasts:
Avalon-South surf forecast from 21 Jul 2026:
- Best quality surf: Wednesday 22 Jul, 4AM (local time) - 4.5ft (1.3m), 10s period, ENE swell with cross-offshore winds.
- Most powerful swell: Tuesday 21 Jul, 1PM (local time) - 4.5ft (1.4m), 10s period, ENE swell with 380 kJ wave energy.
- Next surfable swell (1★+): Wednesday 22 Jul, 1AM (local time) - 3.5ft (1.1m), 10s period with ENE 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 Wednesday (Jul 22) at 1AM. The primary swell is predicted to be 1.1m and 10s period with a secondary swell of 0.8m and 5s. 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 1.4m 10s and forecast to arrive on Tuesday (Jul 21) at 1PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 2.3m 10s period and expected on Friday (Jul 24) at 10AM.
| Wave Type | Time (AEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 1AM (Wed 22nd Jul) | 3.5ft (1.1m) 10s |
| Best Surf | 4AM (Wed 22nd Jul) | 4.5ft (1.3m) 10s |
| Most Powerful | 1PM (Tue 21st Jul) | 4.5ft (1.4m) 10s |
Table - best surf conditions forecast for Avalon-South over the next 16 days.
The Lowdown
Alright, Rusty here. Let's take a look at what's brewing for Avalon-South.
It's a bit of a waiting game over the next couple of weeks. There's a little bump of energy right now, but the real payoff is a solid pulse of swell that shows up at the end of July and into early August. You'll need to sit through a long stretch of flatness to get there, though.
Right now, Tuesday morning, we've got a 5ft ENE swell rolling in with a 10-second interval. It's got a moderate amount of energy, but the wind is a light cross-shore from the north at 6 mph, giving it a bit of a bumpy look. Not great. Over the next few days, Wednesday morning is the best bet of this first little window. That's a 4ft ENE groundswell with a clean 6 mph offshore breeze from the WNW. It'll tidy things up nicely, but the swell is already on the way down. By Thursday morning, it's down to 3ft, and by Friday, you're looking at flat, near-zero energy readings.
From Friday afternoon all the way through to the 30th of July, there's a major gap. Over a week of flat, poor conditions with combined energy dropping into single digits.
Then, finally, the pulse arrives. On the morning of Friday the 31st of July, a fresh SE swell pushes in at 5ft with an 8-second period. The energy jumps back up, and with a light cross-offshore from the SW at 6 mph, conditions look clean. The period is short, so don't expect perfection, but it's rideable and clean – the best we've seen in a while. The next morning, Saturday the 1st of August, is likely the standout. We're looking at a 5ft+ SE groundswell with strong energy, and the wind goes glassy with a light westerly at 3 mph. This is the session to aim for. Water temp is around 65°F, pretty average for this time of year.
Things fade again from Sunday the 2nd, and by the middle of the following week, we're back into choppy, onshore conditions.
So, mark your calendar for the morning of Saturday the 1st of August. That's your best chance for clean, fun head-high waves at Avalon-South.
Rusty.
Short Range ForecastMostly dry. Warm (max 20°C on Wed afternoon, min 7°C on Thu night). Wind will be generally light. | Days 4-6 Weather SummaryMostly dry. Very mild (max 18°C on Sat morning, min 6°C on Fri night). Wind will be generally light. | ||||||||||||||||||||
Tuesday 21 | Wednesday 22 | Thursday 23 | Friday 24 | Saturday 25 | Sunday 26 | Monday 27 | |||||||||||||||
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) | ENE 10 | ENE 10 | ENE 10 | ENE 10 | ENE 10 | ENE 9 | ENE 9 | ENE 9 | ENE 9 | ENE 8 | ENE 8 | ENE 8 | ENE 9 | E 9 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | SE 13 | SE 14 | SE 16 |
Wave Graph  | |||||||||||||||||||||
 kJ | 433 | 314 | 218 | 269 | 210 | 168 | 119 | 92 | 45 | 28 | 28 | 23 | 15 | 7 | 6 | 6 | 6 | 6 | 7 | 8 | 10 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross-on | cross-off | off | glassy | off | off | cross-off | off | cross-off | cross-on | off | off | cross-off | cross-off | cross-off | cross-on | off | cross-off | on | off |
High Tide | 1:51PM1.28m | 1:50AM1.02m | 2:46PM1.29m | 2:56AM0.92m | 3:41PM1.31m | 4:08AM0.88m | 4:36PM1.34m | 5:15AM0.88m | 5:26PM1.39m | 6:09AM0.92m | 6:11PM1.44m | 6:54AM0.96m | 6:53PM1.50m | ||||||||
Low Tide | 8:13PM0.51m | 7:54AM0.39m | 9:28PM0.51m | 8:43AM0.45m | 10:38PM0.48m | 9:37AM0.48m | 11:38PM0.43m | 10:34AM0.49m | 00:26AM0.37m | 11:27AM0.46m | 1:07AM0.31m | 12:14PM0.43m | 1:44AM0.25m | ||||||||
 | |  |  |  | | | | | | | | | | | | | | | | | |
 | 6:54 | — | — | 6:54 | — | — | 6:52 | — | — | 6:52 | — | — | 6:52 | — | — | 6:50 | — | — | 6:50 | — | — |
 | — | 5:07 | — | — | 5:07 | — | — | 5:07 | — | — | 5:08 | — | — | 5:09 | — | — | 5:09 | — | — | 5:10 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 16 | 16 | 15 | 19 | 20 | 16 | 19 | 18 | 11 | 13 | 13 | 11 | 18 | 18 | 13 | 16 | 16 | 13 | 17 | 17 | 14 |
Feels °C | 13 | 13 | 13 | 16 | 17 | 13 | 14 | 12 | 4 | 9 | 9 | 7 | 14 | 12 | 8 | 13 | 12 | 11 | 15 | 14 | 10 |
Swell 1 Height (m) Direction Period (s) | ENE 10 | ENE 10 | ENE 10 | ENE 10 | ENE 10 | ENE 9 | ENE 9 | ENE 9 | ENE 9 | S 10 | S 9 | S 12 | S 11 | S 10 | S 11 | S 11 | S 10 | S 10 | S 9 | S 8 | S 8 |
| kJ | 433 | 314 | 218 | 269 | 210 | 168 | 119 | 92 | 45 | 666 | 365 | 1148 | 663 | 408 | 274 | 434 | 459 | 262 | 153 | 116 | 61 |
Swell 2 Height (m) Direction Period (s) | S 11 | S 10 | S 10 | S 10 | S 11 | S 10 | S 10 | S 10 | S 17 | ENE 8 | S 12 | ENE 8 | ENE 9 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | ENE 8 | NE 8 | NE 7 | SE 16 |
| kJ | 56 | 32 | 31 | 17 | 20 | 8 | 8 | 7 | 6 | 28 | 214 | 23 | 15 | 6 | 6 | 6 | 6 | 6 | 2 | 2 | 10 |
Swell 3 Height (m) Direction Period (s) | S 16 | S 15 | S 14 | S 13 | — | — | E 9 | SE 8 | SE 8 | E 7 | ENE 8 | — | E 9 | E 9 | E 9 | E 9 | E 9 | E 11 | SE 13 | SE 14 | NE 7 |
| kJ | 19 | 17 | 4 | 3 | — | — | 2 | 3 | 2 | 1 | 28 | — | 7 | 7 | 2 | 1 | 2 | 2 | 7 | 8 | 2 |
Wind waves Height (m) Direction Period (s) | — | NE 3 | NE 5 | — | — | W 3 | SSW 5 | SW 5 | SSW 7 | S 10 | — | — | W 3 | — | SW 3 | — | — | N 3 | — | — | WNW 2 |
| kJ | — | 7 | 25 | — | — | 2 | 18 | 28 | 210 | 1004 | — | — | 2 | — | 5 | — | — | 1 | — | — | 1 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 1 | 137 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 7 | 2 | 2 | 3 | 3 | 2 | 7 | 2 | 2 | 47 | 3 |
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