Avalon-South Surf Break

Lat Long: 33.64° S 151.34° E

Avalon-South Surf Forecast and Surf Report

Issued: 3 pm 14 Aug 2026 (local time)

Forecast update in  hr  min

Today's Avalon-South sea temperature is
17.2° C
0.9° 

Avalon-South surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.


Avalon-South surf forecast from 14 Aug 2026:

  • Best quality surf: Monday 17 Aug, 7AM (local time) - 4.5ft (1.3m), 7s period, ESE swell with glassy winds.
  • Most powerful swell: Wednesday 19 Aug, 4PM (local time) - 4ft (1.2m), 10s period, ESE swell with 269 kJ wave energy.
  • Next surfable swell (1★+): Monday 17 Aug, 7AM (local time) - 4.5ft (1.3m), 7s period with ESE 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 Monday (Aug 17) at 7AM. The primary swell is predicted to be 1.3m and 7s period with a secondary swell of 0.2m and 10s. The wind is predicted to be glassy as the swell arrives.

The most powerful waves expected at Avalon-South in the next 16 days are 1.2m 10s and forecast to arrive on Wednesday (Aug 19) 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 1.8m 8s period and expected on Saturday (Aug 15) at 4PM.

Wave TypeTime (AEST) & Date Wave Height & Period
Next good surf (1 star+) 7AM (Mon 17th Aug)4.5ft (1.3m) 7s
Best Surf 7AM (Mon 17th Aug)4.5ft (1.3m) 7s
Most Powerful 4PM (Wed 19th Aug)4ft (1.2m) 10s

Table - best surf conditions forecast for Avalon-South over the next 16 days.


The Lowdown

Alright folks, Rusty here. Let’s suss out what’s coming our way. Look, I’m not gonna lie to you: this stretch is a tough one. For the most part, we’re looking at a long, dry spell of very ordinary conditions. The first real glimmer of hope doesn’t show up until the very end of August, so patience is the name of the game for the next week and a half.

We’re kicking off now, and it’s a real struggle. From Friday the 14th through to well into the next week, it’s mostly small, weak, and messy. The wind is all over the shop, usually onshore or cross-onshore, and the swell energy is way down in the dumps, often in the teens or low hundreds. There are a few moments of glassy conditions, like the morning of Wednesday the 19th, but the swell is tiny (3 ft from the ESE with a short 7-second period) and weak, with the combined energy sitting at 166 – just not enough to get excited about. The 21st also has a glassy morning, but again, it’s a tiny 3 ft wave.

The water’s sitting at around 63° for the first break we look at, which is just a touch cooler than average for this time of year, but nothing too strange.

Honestly, there’s nothing worth paddling out for through the rest of August until the very last day of the month. You’re looking at a gap of over a week of poor-quality, energy-starved surf. It’s a proper blank run.

The Standout

Then, finally, things change. The one and only bright spot is the morning of Friday, August 28th at Avalon-South. This is the pick of the entire forecast. We’ve got a solid 5 ft swell rolling in from the SE with a period of 10 seconds, packing some real punch – the combined energy is a strong and impressive 458. The wind is expected to be light offshore from the SW, which is going to groom it into nice, clean lines. The break itself is fairly consistent, exposed, and the optimum swell direction (ENE) is a close match to the forecast SE, so this should set up well. For a spot that’s been starved of energy for so long, this is a proper session to circle on your calendar. Keep in mind though, the crowds at Avalon-South are “often,” so you’ll want to be sharp and early to get a piece of it.

The afternoon of the 28th gets blown out with rain showers and a cross-onshore wind, so the window is tight. The morning is where it’s at.

So, there you have it. A long dry spell, but a decent payoff at the very end if you can hold out. Stay keen.

- Rusty

Short Range Forecast

Moderate rain (total 12mm), heaviest on Sun night. Very mild (max 16°C on Fri afternoon, min 13°C on Sat night). Wind will be generally light.

Days 5-7 Weather Summary

Light rain (total 5mm), mostly falling on Mon afternoon. Very mild (max 17°C on Thu morning, min 13°C on Wed night). Wind will be generally light.

Fri
14
Saturday
15
Sunday
16
Monday
17
Tuesday
18
Wednesday
19
Thursday
20
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
0
0
0
0
0
0
0
0
0
0
0
0
0
1
1
0
1
0
0
0
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
0.4
ENE
10
0.3
ENE
9
0.3
ENE
9
0.3
ENE
10
0.3
ENE
10
1.5
SE
6
1.5
SSE
7
1.2
ESE
6
1.3
ESE
7
1.1
ESE
7
1.1
ESE
7
1
ESE
7
1
ESE
7
0.6
ESE
12
1
ESE
7
1.2
ESE
10
1.1
ESE
7
1
ESE
7
0.9
ESE
7
0.9
NE
5
Wave Graph
Metric surfscale
Energy kJ
31
17
17
18
19
186
192
114
142
102
110
83
91
111
83
269
113
85
64
47
Wind (km/h)
15
ESE
5
S
10
SSW
20
SSE
10
SW
20
SE
15
SSE
10
E
10
ESE
15
ESE
10
ESE
10
SSE
10
ESE
0
NE
5
S
15
ENE
5
WNW
5
NNE
20
NE
10
N
Wind State
on
glassy
cross-off
cross
cross-off
cross-on
cross-on
on
on
on
cross-on
cross-on
cross-on
glassy
glassy
cross-on
cross-off
cross
cross-on
cross
High Tide
9:20PM1.66m
9:59AM1.34m
10:02PM1.53m
10:40AM1.36m
10:44PM1.37m
11:22AM1.36m
11:27PM1.21m
12:05PM1.34m
00:13AM1.06m
12:54PM1.30m
1:08AM0.94m
1:50PM1.27m
2:20AM0.87m
Low Tide
3:51AM0.02m
3:50PM0.23m
4:27AM0.10m
4:40PM0.28m
5:01AM0.19m
5:31PM0.36m
5:35AM0.29m
6:27PM0.43m
6:12AM0.38m
7:32PM0.49m
6:55AM0.47m
8:48PM0.52m
clear
rain showers
rain showers
rain showers
rain showers
cloud
part cloud
rain showers
rain showers
rain showers
rain showers
clear
part cloud
clear
clear
clear
clear
clear
clear
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:33
6:33
6:31
6:31
6:28
6:28
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
5:23
5:23
5:24
5:25
5:25
5:27
5:28
 mm
1
2
1
2
4
2
3
2
Temp °C
16
15
15
16
15
15
15
14
15
15
15
16
16
16
16
16
15
17
16
15
Feels °C
13
14
13
12
12
11
11
11
13
12
12
13
14
15
14
13
14
14
12
13
  • Map Icons:
  • Break
  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
Map placeholder
How to use the Wavefinder 
submit an eyeball surf report

Quick surf report for Avalon-South:

join our community of surf reporters

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 locationNearest