Avalon-South Surf Break

Lat Long: 33.64° S 151.34° E

Avalon-South Surf Forecast and Surf Report

Issued: 3 pm 21 Sep 2026 (local time)

Forecast update in  hr  min

Today's Avalon-South sea temperature is
18.6°C
0.3° 

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 21 Sep 2026:

  • Best quality surf: Wednesday 23 Sep, 7AM (local time) - 4.5ft (1.3m), 6s period, ENE swell with cross-offshore winds.
  • Most powerful swell: Tuesday 22 Sep, 1PM (local time) - 6ft (1.9m), 11s period, SSE swell with 808 kJ wave energy.
  • Next surfable swell (1★+): Wednesday 23 Sep, 7AM (local time) - 4.5ft (1.3m), 6s 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 (Sep 23) at 7AM. The primary swell is predicted to be 1.3m and 6s period. 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 1.9m 11s and forecast to arrive on Tuesday (Sep 22) 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 2.5m 10s period and expected on Tuesday (Sep 22) at 1AM.

Wave TypeTime (AEST) & Date Wave Height & Period
Next good surf (1 star+) 7AM (Wed 23rd Sep)4.5ft (1.3m) 6s
Best Surf 7AM (Wed 23rd Sep)4.5ft (1.3m) 6s
Most Powerful 1PM (Tue 22nd Sep)6ft (1.9m) 11s

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


Short Range Forecast

Heavy rain (total 23mm), heaviest during Tue night. Very mild (max 19°C on Thu morning, min 14°C on Mon night). Wind will be generally light.

Days 5-7 Weather Summary

Mostly dry. Warm (max 29°C on Sat morning, min 15°C on Thu night). Wind will be generally light.

Mon
21
Tuesday
22
Wednesday
23
Thursday
24
Friday
25
Saturday
26
Sunday
27
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
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)
2
SSE
6
2.5
S
10
1.6
SSE
8
1.1
ESE
5
1.3
E
6
1.5
ENE
6
1.8
ENE
6
1.5
ENE
6
1.3
ENE
6
1.6
ENE
6
1.4
NE
6
1
ENE
6
1.8
NE
6
1.8
NE
7
1.1
NE
7
1.2
ENE
7
1.2
ENE
7
0.8
ENE
7
0.7
ENE
7
0.5
NE
6
Wave Graph
Metric surfscale
Energy kJ
300
0
302
72
100
135
241
176
100
160
152
72
245
292
109
134
134
61
38
19
Wind (km/h)
30
SSE
20
SSE
15
SE
20
ESE
20
ENE
10
NNE
25
NE
20
NE
20
NE
25
NE
15
NNE
15
NE
20
NE
10
N
0
NNW
15
NE
20
S
10
SSE
10
E
10
N
Wind State
cross
cross
cross-on
cross-on
cross-on
cross
cross-on
cross-on
cross-on
cross-on
cross
cross-on
cross-on
cross
glassy
cross-on
cross
cross-on
on
cross
High Tide
4:18PM1.28m
5:17AM0.99m
5:08PM1.34m
5:57AM1.08m
5:51PM1.40m
6:32AM1.19m
6:30PM1.45m
7:06AM1.29m
7:08PM1.47m
7:40AM1.39m
7:47PM1.46m
8:15AM1.48m
8:27PM1.42m
Low Tide
11:15PM0.37m
10:43AM0.52m
11:53PM0.29m
11:32AM0.44m
00:26AM0.22m
12:17PM0.36m
00:58AM0.16m
12:59PM0.28m
1:29AM0.12m
1:41PM0.21m
2:01AM0.10m
2:24PM0.16m
2:34AM0.12m
cloud
cloud
light rain
mod rain
rain showers
part cloud
part cloud
part cloud
clear
clear
part cloud
clear
part cloud
clear
clear
part cloud
part cloud
part cloud
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:45
5:43
5:41
5:41
5:39
5:37
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
5:49
5:50
5:51
5:51
5:52
5:52
5:52
 mm
3
6
14
Temp °C
16
15
15
15
16
18
18
18
19
18
16
23
22
22
29
27
16
17
17
16
Feels °C
11
11
13
13
16
18
15
14
17
14
13
19
19
20
26
24
13
16
16
16
  • 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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