Avalon-South surfForecast / NSW – Sydney North Coast / Australia

information circle16 Day Weather and Surf, issued 9 pm Thursday 14 May 2026 AEST
Forecast update in hr  min  s Forecast update imminent
Avalon-South surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Avalon-South sea temperature is
20.7° C
(Which is normal for this time of year)

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 Friday (May 15) at 4AM. The primary swell is predicted to be 1.2m and 6s period. The wind is predicted to be offshore as the swell arrives.

The most powerful waves expected at Avalon-South in the next 16 days are 3.5m 9s and forecast to arrive on Tuesday (May 19) at 7PM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 5.0m 12s period and expected on Thursday (May 21) at 10PM.

Wave TypeTime (AEST) & Date Wave Height & Period
Next good surf (1 star+) 4AM (Fri 15th May)4ft (1.2m) 6s
Best Surf 7PM (Tue 19th May)11ft (3.5m) 9s
Most Powerful 7PM (Tue 19th May)11ft (3.5m) 9s

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


Updates in  hr  min  s Forecast update imminent

Short Range Forecast

Some drizzle, heaviest during Thu night. Warm (max 20°C on Fri morning, min 15°C on Fri night). Wind will be generally light.

Days 5-7 Weather Summary

Heavy rain (total 23mm), heaviest during Tue morning. Warm (max 21°C on Mon afternoon, min 14°C on Tue night). Winds increasing (light winds from the NNE on Sun night, fresh winds from the NNE by Tue morning).

Friday
15
Saturday
16
Sunday
17
Monday
18
Tuesday
19
Wednesday
20
Thu
21
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Rating
(10 max)
1
1
0
1
2
1
2
2
0
1
0
0
0
0
1
3
3
2
2
1
1
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)
1.2
E
6
1.2
ESE
7
1.3
ESE
7
1.3
ESE
7
1.6
E
8
1.6
E
8
1.8
E
9
2
E
9
2
E
9
2.1
ENE
9
1.8
E
9
1.7
E
9
2.4
ENE
8
2.5
ENE
9
3
ENE
9
2.5
ENE
9
2.3
ENE
10
2.1
ENE
10
1.9
ENE
10
1.9
ENE
10
2.1
ENE
11
Wave Graph
Metric surfscale
Energy kJ
123
131
149
158
302
326
470
613
607
660
517
452
771
885
1233
1247
1024
898
791
763
1016
Wind (km/h)
0
WSW
10
WSW
10
SE
5
W
10
SW
10
E
5
NW
5
N
15
NE
15
NNE
15
NNE
20
NNE
30
NNE
40
NNE
20
N
20
WNW
15
W
15
SSW
20
SW
25
SSW
35
SSW
glassy
cross-off
cross-on
glassy
cross-off
on
cross-off
glassy
cross-on
cross
cross
cross-on
cross-on
cross-on
cross
off
off
cross-off
cross-off
cross-off
cross-off
High Tide
6:33AM1.27m
6:58PM1.67m
7:28AM1.26m
7:43PM1.76m
8:22AM1.22m
8:30PM1.80m
9:17AM1.18m
9:19PM1.80m
10:14AM1.12m
10:12PM1.76m
11:14AM1.07m
11:07PM1.68m
12:18PM1.05m
Low Tide
00:39AM0.19m
12:29PM0.14m
1:31AM0.07m
1:14PM0.16m
2:24AM-0.01m
2:00PM0.19m
3:17AM-0.04m
2:48PM0.24m
4:13AM-0.03m
3:38PM0.30m
5:10AM0.01m
4:33PM0.37m
6:10AM0.06m
5:34PM0.44m
rain showers
clear
clear
clear
part cloud
part cloud
part cloud
clear
part cloud
part cloud
cloud
thunderstorm
heavy rain
rain showers
clear
clear
part cloud
rain showers
rain showers
part cloud
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:37
6:39
6:39
6:39
6:41
6:41
6:41
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
5:02
5:01
5:00
5:00
5:00
4:59
4:59
1
1
14
7
1
1
Temp °C
19
20
19
19
20
19
18
20
20
19
20
21
18
19
20
18
18
18
16
17
17
18
19
18
20
21
19
18
19
19
18
18
20
14
16
18
15
15
15
12
10
10
Swell 1
Height (m)
Direction
Period (s)
1.2
E
6
1.2
ESE
7
1.3
ESE
7
1.3
ESE
7
1.6
E
8
1.6
E
8
1.8
E
9
2
E
9
2
E
9
2.1
ENE
9
1.8
E
9
1.7
E
9
2.1
ENE
8
2.1
ENE
9
2.5
ENE
9
2.3
ENE
10
2.1
ENE
10
1.9
ENE
10
3
S
11
2.4
S
11
Energy kJ
123
131
149
158
302
326
470
613
607
660
517
452
621
682
1247
1024
898
791
2241
1379
Swell 2
Height (m)
Direction
Period (s)
0.6
S
9
0.5
S
9
0.4
S
10
0.4
ENE
9
0.3
S
9
0.1
S
13
0.2
S
8
0.1
S
8
0.1
S
17
1.9
ENE
10
2.1
ENE
11
Energy kJ
60
41
28
25
14
3
5
1
5
763
1016
Swell 3
Height (m)
Direction
Period (s)
0.2
E
10
0.1
S
15
0.1
SE
15
0.1
S
14
0.1
SE
13
Energy kJ
8
5
8
4
7
Wind waves
Height (m)
Direction
Period (s)
0.2
WSW
2
2.4
ENE
8
2.5
ENE
9
3
ENE
9
3.5
S
9
4
S
10
4.5
S
11
1.1
W
5
Energy kJ
1
771
885
1233
2214
2765
4430
52
Nearest Offshore or Glassy
Rating
(10 max)
1
1
1
1
2
2
2
2
3
2
2
2
2
2
3
3
3
3
3
2
4
Distance (km)
0
0
7
0
0
45
0
0
47
1
11
11
197
332
1
0
0
0
0
203
330
Best forecast wave conditions in Sydney North Coast
Rating
(10 max)
1
1
1
1
2
2
3
2
3
4
5
5
3
Best forecast wave conditions in Australia
Rating
(10 max)
4
4
4
4
3
4
5
4
4
4
3
3
4
5
4
4
5
5
5
7
4
Header Global
Rating
(10 max)
4
5
5
5
5
4
5
5
7
6
4
4
4
5
4
4
5
5
5
5
4
  • 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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