Avalon-South Surf Break

Lat Long: 33.64° S 151.34° E

Issued: 3 pm 18 Jun 2026 (local time)

Forecast update in  hr  min

Today's Avalon-South sea temperature is
19.3° C

Slightly warmer than usual

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 18 Jun 2026:

  • Best quality surf: Saturday 20 Jun, 7AM (local time) - 2ft (0.6m), 11s period, ENE swell with cross-offshore winds.
  • Most powerful swell: Thursday 25 Jun, 7PM (local time) - 5.5ft (1.7m), 8s period, SSE swell with 355 kJ wave energy.
  • Next surfable swell (1★+): Saturday 20 Jun, 7AM (local time) - 2ft (0.6m), 11s 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 Saturday (Jun 20) at 7AM. The primary swell is predicted to be 0.6m and 11s period with a secondary swell of 0.6m and 8s. 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 1.7m 8s and forecast to arrive on Thursday (Jun 25) at 7PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 2.4m 8s period and expected on Wednesday (Jun 24) at 1PM.

Wave TypeTime (AEST) & Date Wave Height & Period
Next good surf (1 star+) 7AM (Sat 20th Jun)2ft (0.6m) 11s
Best Surf 7AM (Sat 20th Jun)2ft (0.6m) 11s
Most Powerful 7PM (Thu 25th Jun)5.5ft (1.7m) 8s

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


Updates in  hr  min  s Forecast update imminent

Short Range Forecast

Mostly dry. Warm (max 21°C on Thu afternoon, min 12°C on Sat night). Wind will be generally light.

Days 5-7 Weather Summary

Mostly dry. Very mild (max 18°C on Sun afternoon, min 10°C on Mon night). Wind will be generally light.

Thu
18
Friday
19
Saturday
20
Sunday
21
Monday
22
Tuesday
23
Wednesday
24
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
Rating
(10 max)
0
0
0
1
0
0
0
1
0
0
0
0
0
1
1
1
0
0
0
0
0
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
1.1
NE
10
1
ENE
11
1.1
ENE
11
1.2
NE
11
1
ENE
11
0.6
ENE
11
0.6
ENE
11
0.6
ENE
11
0.5
E
11
0.5
E
11
0.5
E
10
0.5
E
10
0.4
ENE
10
1.3
SSE
8
1.1
SSE
8
0.9
SSE
7
0.9
SSE
7
0.2
ENE
9
0.2
ENE
9
0.2
ENE
8
0.1
NE
9
Wave Graph
Metric surfscale
Energy kJ
239
226
291
344
242
91
91
91
61
61
55
51
33
207
147
76
97
8
8
7
3
Wind (km/h)
15
NNW
25
NNW
25
NNW
20
NNW
15
NW
15
NW
15
WNW
10
NW
15
WSW
5
S
15
SW
20
WSW
10
S
10
WSW
10
W
5
W
15
SW
20
SSW
25
S
20
SW
25
SSW
Wind State
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
off
glassy
cross-off
cross-off
cross-off
off
off
glassy
cross-off
cross-off
cross
cross-off
cross-off
High Tide
10:52PM1.70m
11:56AM1.13m
11:45PM1.56m
12:53PM1.15m
00:39AM1.41m
1:50PM1.19m
1:35AM1.26m
2:45PM1.24m
2:34AM1.12m
3:38PM1.30m
3:37AM1.02m
4:26PM1.35m
4:38AM0.97m
Low Tide
4:23PM0.33m
5:46AM0.03m
5:22PM0.39m
6:36AM0.10m
6:26PM0.46m
7:24AM0.18m
7:35PM0.50m
8:09AM0.25m
8:49PM0.52m
8:54AM0.31m
10:01PM0.50m
9:38AM0.36m
11:05PM0.45m
10:22AM0.40m
cloud
cloud
cloud
cloud
part cloud
clear
clear
clear
clear
part cloud
part cloud
part cloud
clear
clear
part cloud
part cloud
part cloud
part cloud
clear
part cloud
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:58
6:58
6:58
6:58
6:58
6:58
6:58
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
4:52
4:52
4:52
4:52
4:53
4:53
4:53
4:53
 mm
Temp °C
21
18
19
18
15
19
19
15
17
18
15
12
15
14
15
17
12
13
14
12
14
Feels °C
18
15
14
15
10
15
15
12
14
16
11
8
12
11
12
15
7
6
8
6
8
Swell 1
Height (m)
Direction
Period (s)
1.1
NE
10
1
ENE
11
1.1
ENE
11
1.2
NE
11
1
ENE
11
0.6
ENE
11
0.6
ENE
11
0.6
ENE
11
0.5
E
11
0.7
S
10
2.1
S
9
1.9
S
9
1.6
S
8
1.3
SSE
8
1.1
SSE
8
0.9
SSE
7
0.9
SSE
7
0.3
S
19
0.2
S
19
1.8
S
8
1.6
S
8
Energy kJ
239
226
291
344
242
91
91
91
61
98
732
542
349
207
147
76
97
66
28
472
324
Swell 2
Height (m)
Direction
Period (s)
0.3
S
9
0.2
S
11
0.4
S
11
0.4
S
11
0.4
S
10
0.6
NE
7
0.4
NE
7
0.4
S
12
0.5
S
11
0.6
S
7
0.5
E
10
0.5
E
10
0.4
ENE
10
0.4
ENE
10
0.4
S
16
0.3
ENE
9
0.3
ENE
9
0.2
ENE
9
0.2
ENE
9
0.2
S
15
0.1
S
17
Energy kJ
14
9
41
38
32
34
18
42
55
34
55
51
33
32
81
17
16
8
8
17
6
Swell 3
Height (m)
Direction
Period (s)
0.1
S
11
0.4
S
12
0.1
S
19
0.3
S
16
0.4
S
14
0.4
S
13
0.4
NE
7
0.2
NNE
6
0.5
E
11
0.2
S
14
0.2
S
15
0.3
S
16
0.3
ENE
9
0.3
S
10
0.2
S
13
0.2
ENE
8
0.1
NE
9
Energy kJ
2
42
7
46
60
54
13
4
61
16
18
47
17
18
14
7
3
Wind waves
Height (m)
Direction
Period (s)
0.7
N
4
0.7
N
4
0.9
NNW
4
0.3
NW
4
0.5
NW
3
0.5
NW
3
0.4
NW
3
0.4
NW
3
0.5
SW
4
0.8
SSW
7
2.3
S
9
0.4
W
3
0.2
WSW
2
1.9
S
7
2.3
S
8
1.9
S
8
Energy kJ
13
13
28
3
6
5
3
3
6
50
885
3
1
371
692
413
Nearest Offshore or Glassy
Rating
(10 max)
1
1
1
2
1
1
1
1
1
1
1
1
2
1
1
1
1
2
2
2
2
Distance (km)
1
1
87
1
1
2
2
0
0
0
0
0
3
0
0
0
3
3
170
3
123
Best forecast wave conditions in Sydney North Coast
Rating
(10 max)
1
1
2
1
1
1
1
1
1
4
3
2
2
2
1
1
2
2
Best forecast wave conditions in Australia
Rating
(10 max)
1
5
4
4
4
2
3
3
4
4
4
4
4
4
4
2
3
3
3
3
3
Header Global
Rating
(10 max)
5
9
5
6
7
4
9
5
9
4
7
7
5
6
5
6
5
7
9
8
6
  • 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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