Avalon-South Surf Break

Lat Long: 33.64° S 151.34° E

Avalon-South Surf Forecast and Surf Report

Issued: 3 am 08 Aug 2026 (local time)

Forecast update in  hr  min

Today's Avalon-South sea temperature is
17.6° C
0.5° 

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 7 Aug 2026:

  • Best quality surf: Sunday 9 Aug, 1AM (local time) - 2.5ft (0.7m), 8s period, ENE swell with cross-offshore winds.
  • Most powerful swell: Monday 10 Aug, 7AM (local time) - 7ft (2.2m), 9s period, ENE swell with 732 kJ wave energy.
  • Next surfable swell (1★+): Sunday 9 Aug, 1AM (local time) - 2.5ft (0.7m), 8s 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 Sunday (Aug 09) at 1AM. The primary swell is predicted to be 0.7m and 8s period with a secondary swell of 0.5m and 4s. 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 2.2m 9s and forecast to arrive on Monday (Aug 10) at 7AM. Winds are predicted to be offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 2.5m 10s period and expected on Thursday (Aug 13) at 1PM.

Wave TypeTime (AEST) & Date Wave Height & Period
Next good surf (1 star+) 1AM (Sun 9th Aug)2.5ft (0.7m) 8s
Best Surf 1AM (Sun 9th Aug)2.5ft (0.7m) 8s
Most Powerful 7AM (Mon 10th Aug)7ft (2.2m) 9s

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


The Lowdown

G’day, Rusty here. Let’s talk about Avalon-South. I’ve been staring at the charts, and to be honest, we’re looking at a lot of flat days before anything really worth a paddle shows up.

The water temp is about 64°F, which is nothing special for this time of year.

Saturday the 8th is a bust. Tiny 2ft waves from the SSE, a west wind blowing offshore, and hardly any energy (63). The call is poor surf.

Sunday the 9th gets a little bump to about 3ft from the ENE, energy creeps up to 199, but a light north cross-shore wind puts a bit of chop on it. Still poor.

Monday the 10th sees the biggest swell of the early window at 7ft from the ENE, with very strong energy (723). But that’s paired with a 30 mph NW cross-off wind. For a wave that size, that’s messy. This setup looks more interesting for kite surfing than a real surf session.

Tuesday the 11th drops to 3ft, but the wind goes offshore from the WNW, making it clean. The energy is only moderate (103) and the comment says “surfable but ordinary.” It’s small but tidy.

From Wednesday the 12th all the way to Thursday the 21st, it’s a near-total drought. Swell barely gets above 2ft, energy readings are mostly weak (under 100), and the wind is all over the place. Almost two weeks of nothing.

Then, Saturday the 22nd of August. That’s the one. We get a nice 5ft of SSE swell, short period of 8 seconds, with 293 moderate energy. The wind is glassy – dead calm from the SSW. The commentary says expect good surf conditions. It’s clean, fun, and surfable for most. Crowds here are “often” a problem, so expect plenty of company in the lineup.

Sunday the 23rd drops off to a tiny 2ft, glassy again but forgettable.

Best bet: Saturday the 22nd of August. Get up early for glassy 5ft waves from the SSE. That’s the one.

Rusty.

Short Range Forecast

Light rain (total 5mm), mostly falling on Mon morning. Very mild (max 18°C on Sun morning, min 10°C on Sat night). Winds increasing (light winds from the W on Sat morning, fresh winds from the NW by Mon afternoon).

Days 4-6 Weather Summary

Mostly dry. Very mild (max 19°C on Tue morning, min 8°C on Thu night). Winds decreasing (fresh winds from the NW on Wed morning, light winds from the SSE by Thu afternoon).

Saturday
8
Sunday
9
Monday
10
Tuesday
11
Wednesday
12
Thursday
13
Friday
14
AM
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
1
0
0
0
1
0
0
1
1
0
0
0
0
0
0
0
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)
0.5
SSE
9
0.4
SSE
9
0.7
ENE
8
0.9
ENE
9
1.1
ENE
9
2.4
NE
7
2.1
ENE
9
1.6
NE
9
1.1
NE
9
0.8
ENE
9
0.7
ENE
9
0.5
ENE
9
0.6
ENE
9
0.6
ENE
10
0.5
ENE
10
0.4
ENE
10
0.3
ENE
10
0.2
ENE
10
0.2
ENE
10
0.2
ENE
10
0.2
ENE
10
Wave Graph
Metric surfscale
Energy kJ
45
30
67
156
203
540
723
456
194
103
70
43
64
74
54
32
20
10
10
10
10
Wind (km/h)
5
W
15
ENE
10
NNW
10
N
10
N
25
NNE
30
NW
35
NW
25
WNW
20
WNW
20
W
15
NNW
25
NW
35
W
25
W
20
WSW
10
SSE
15
W
10
WSW
15
ESE
10
WSW
Wind State
off
on
cross-off
cross
cross
cross
cross-off
cross-off
off
off
off
cross-off
cross-off
off
off
cross-off
cross-on
off
off
on
off
High Tide
4:06PM1.51m
4:57AM0.99m
5:10PM1.60m
6:04AM1.05m
6:09PM1.69m
7:00AM1.12m
7:01PM1.76m
7:49AM1.19m
7:50PM1.78m
8:34AM1.25m
8:36PM1.75m
9:17AM1.31m
9:20PM1.66m
Low Tide
11:05PM0.26m
10:25AM0.37m
00:08AM0.15m
11:30AM0.33m
1:02AM0.06m
12:29PM0.27m
1:50AM-0.01m
1:22PM0.22m
2:33AM-0.04m
2:13PM0.19m
3:13AM-0.02m
3:02PM0.19m
3:51AM0.02m
clear
clear
clear
part cloud
light rain
part cloud
rain showers
part cloud
clear
clear
clear
clear
part cloud
clear
clear
clear
clear
clear
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:41
6:39
6:39
6:37
6:37
6:35
6:35
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
5:19
5:20
5:21
5:21
5:22
5:22
5:23
 mm
2
3
Temp °C
15
15
13
18
16
16
16
15
16
19
19
13
19
14
13
15
16
11
17
16
14
Feels °C
13
12
10
14
13
10
8
6
10
14
13
10
13
6
5
10
12
7
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)
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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.

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