Snow-ForecastSnow-ForecastMountain-ForecastMountain-ForecastTide-ForecastTide-ForecastWeather-ForecastWeather-Forecast
Search by country, region, or break
Search by country, region, or break

Quick Links

Surf Forecasts:

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

information circle12 Day Weather and Surf, issued 9 am Friday 19 Sep 2025 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
19.4° C
 (Which is 1.1°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 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Friday (Sep 19) at 7PM. The primary swell is predicted to be 1.4m and 6s period with a secondary swell of 1.1m and 6s. The wind is predicted to be offshore as the swell arrives.

The most powerful waves expected at Avalon-South in the next 12 days are 2.4m 9s and forecast to arrive on Wednesday (Sep 24) at 10PM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 4.0m 9s period and expected on Tuesday (Sep 23) at 1PM.

Wave TypeTime (AEST) & Date Wave Height & Period
Next good surf (1 star+) 7PM (Fri 19th Sep)4.5ft (1.4m) 6s
Best Surf10PM (Wed 24th Sep)8ft (2.4m) 9s
Most Powerful10PM (Wed 24th Sep)8ft (2.4m) 9s

Table - best surf conditions forecast for Avalon-South over the next 12 days.

Updates in  hr  min  s Forecast update imminent 
12 DaysHourly
Print Table

Short Range Forecast Light rain (total 2mm), mostly falling on Fri night. Warm (max 22°C on Fri morning, min 10°C on Sat night). Wind will be generally light.

Days 3-6 Weather Summary Heavy rain (total 22mm), heaviest during Mon night. Warm (max 20°C on Mon morning, min 8°C on Mon night). Winds increasing (calm on Mon afternoon, strong winds from the SSW by Tue morning).

Friday
19
Saturday
20
Sunday
21
Monday
22
Tuesday
23
Wednesday
24
Thursday
25
AMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNight
Rating
(10 max)
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
1
0
0
Swell
Height Map
See all maps
Wave Height (m) & direction (?)
0.9
ENE
1.1
NE
0.8
ENE
0.7
NE
0.6
ENE
0.5
NE
0.5
NE
0.4
ENE
0.4
ENE
0.4
ENE
0.4
ENE
0.5
ENE
0.4
ENE
0.3
ENE
0.3
ENE
0.2
ENE
2.3
SSE
0.3
E
0.8
SE
0.8
SE
0.6
SE
Period(s) (?)666667877888889899877
Wave
Graph
(?)Metric surfscale
Energy kJ (?)699546382625282120222237231216779115796932
Wind
(km/h)
10
NNW
10
NE
25
NNW
20
W
20
WSW
15
WSW
5
WNW
10
NE
10
WSW
10
WSW
5
ESE
25
SW
45
SSW
45
SSW
25
SW
20
SW
20
SSE
10
W
10
WNW
15
WSW
10
W
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
cross-
off		cross-
on		cross-
off		offoffcross-
off		offcross-
on		offcross-
off		glasscross-
off		cross-
off		cross-
off		cross-
off		cross-
off		crossoffcross-
off		cross-
off		off
High Tide
/ height (m)
6:34PM
1.51
7:12AM
1.25
7:14PM
1.49
7:46AM
1.32
7:51PM
1.46
8:17AM
1.38
8:26PM
1.40
8:48AM
1.42
9:01PM
1.32
9:19AM
1.44
9:36PM
1.23
9:51AM
1.43
10:12PM
1.13
Low Tide
/ height (m)
12:15PM
0.35
1:07AM
0.15
1:00PM
0.29
1:39AM
0.14
1:41PM
0.25
2:08AM
0.15
2:20PM
0.23
2:36AM
0.19
2:59PM
0.23
3:03AM
0.23
3:37PM
0.25
3:31AM
0.29
4:17PM
0.29
3:59AM
0.36
Friday
19
Saturday
20
Sunday
21
Monday
22
Tuesday
23
Wednesday
24
Thursday
25
Sunrise5:48--5:48--5:46--5:45--5:43--5:41--5:41--
Sunset-5:47--5:47--5:49--5:50--5:51--5:51--5:52-
clear
cloud
rain showers
clear
clear
clear
clear
clear
clear
clear
cloud
rain showers
mod rain
light rain
rain showers
clear
clear
clear
clear
clear
part cloud
Rain (mm)
--2--------12721------
Temp. °C222218222214181915201814141413161514212216
Feels °C (?)1819151617915161218179555111011181711
  • Map Icons:
  • Break
  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
Map placeholder

Eyeball surf reportRecent Eyeball Surf Reports for NSW - Sydney North Coast

  1. weather stationWind Update Continuing clean conditions at Avalon-South (calm at Cromer wx 13 km from Avalon-South). A 0.8m windswell from the ENE

    2 hours 41 minutes ago Avalon-South
Expand
<
>
View all

2 h 41 min ago

0 km/h
N
Clean
Please reload the page to see if there are any updates.

FREE! Surf-Forecast.com widget for your website

The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Avalon-South surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.

View detailed surf forecast for Avalon-South at:
surf-forecast.com

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 12 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.

Nearest
Nearest
Nearest