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

information circle16 Day Weather and Surf, issued 4 pm Wednesday 25 Mar 2026 AEDT
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
24.5° C
(Which is 1.5°C warmer than 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 Thursday (Mar 26) at 2AM. The primary swell is predicted to be 2.2m and 12s period. 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 4.0m 12s and forecast to arrive on Saturday (Mar 28) at 8PM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 7.0m 14s period and expected on Saturday (Mar 28) at 2AM.

Wave TypeTime (AEDT) & Date Wave Height & Period
Next good surf (1 star+) 2AM (Thu 26th Mar)7ft (2.2m) 12s
Best Surf 8PM (Sat 28th Mar)13ft (4.0m) 12s
Most Powerful 8PM (Sat 28th Mar)13ft (4.0m) 12s

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


Updates in  hr  min  s Forecast update imminent

Short Range Forecast Heavy rain (total 26mm), heaviest during Fri afternoon. Warm (max 27°C on Thu afternoon, min 12°C on Fri afternoon). Winds increasing (calm on Wed night, strong winds from the WSW by Fri afternoon).

Days 3-6 Weather Summary Mostly dry. Warm (max 22°C on Mon afternoon, min 14°C on Sat night). Wind will be generally light.

Wed
25
Thursday
26
Friday
27
Saturday
28
Sunday
29
Monday
30
Tuesday
31
PMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAM
Rating
(10 max)
0
4
4
4
2
1
0
0
0
0
!
4
3
3
2
0
0
0
0
0
0
Swell
Height Map
Wave Height (m) & direction (?)
1.7
ENE
2.2
ENE
2.3
E
2.3
E
2
E
1.3
ESE
1
ESE
0.8
ESE
0.4
SE
5
S
3.5
SSE
3
SSE
2.5
SSE
2.1
SSE
1.5
SSE
1.4
SSE
1.1
SE
0.8
SSE
0.6
SSE
0.4
SSE
0.3
E
Period(s) (?)101212121111111114121211111010998878
Wave
Graph
(?)Metric surfscale
Energy kJ (?)540143815651496102941524513547033202015136985043732019784432111
Wind
(km/h)
15
ENE
5
NNW
5
NNW
5
SW
20
WSW
25
W
45
WSW
30
WSW
20
SW
20
S
10
WSW
15
SSW
10
ESE
5
W
5
ENE
15
ENE
5
N
5
NE
20
NE
10
N
10
NNE
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
cross-
on
glassglasscross-
off
cross-
off
offcross-
off
cross-
off
cross-
off
crossoffcross-
off
cross-
on
glassglassoncrosscross-
on
cross-
on
crosscross-
on
High Tide
/ height (m)
2:36PM
0.96
2:46AM
1.43
4:05PM
0.94
4:04AM
1.42
5:24PM
0.99
5:17AM
1.43
6:25PM
1.08
6:18AM
1.46
7:12PM
1.18
7:09AM
1.47
7:52PM
1.28
7:54AM
1.46
8:27PM
1.37
8:35AM
1.43
Low Tide
/ height (m)
7:58PM
0.48
9:58AM
0.29
9:20PM
0.52
11:14AM
0.26
10:45PM
0.51
12:14PM
0.21
11:56PM
0.44
1:02PM
0.17
12:54AM
0.36
1:41PM
0.14
1:44AM
0.29
2:16PM
0.13
2:28AM
0.23
Wed
25
Thursday
26
Friday
27
Saturday
28
Sunday
29
Monday
30
Tuesday
31
Sunrise--7:01--7:01--7:03--7:03--7:03--7:05--7:05
Sunset7:00--6:59--6:57--6:55--6:54--6:52--6:52--
clear
clear
part cloud
rain showers
rain showers
part cloud
mod rain
rain showers
clear
clear
clear
clear
clear
part cloud
part cloud
clear
clear
clear
part cloud
part cloud
part cloud
Rain (mm)
---111-95-------------
Temp. °C242225271914121515191918201920222021222121
Feels °C (?)242326271975810151515181820201821211920
  • Map Icons:
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  • 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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