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

information circle12 Day Weather and Surf, issued 9 am Saturday 19 Jul 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
18.1° 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 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Monday (Jul 21) at 1AM. The primary swell is predicted to be 1.2m and 9s period. The wind is predicted to be glassy as the swell arrives.

The most powerful waves expected at Avalon-South in the next 12 days are 2.3m 7s and forecast to arrive on Wednesday (Jul 23) at 1AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.8m 5s period and expected on Monday (Jul 21) at 1AM.

Wave TypeTime (AEST) & Date Wave Height & Period
Next good surf (1 star+) 1AM (Mon 21st Jul)4ft (1.2m) 9s
Best Surf 1AM (Wed 23rd Jul)7.5ft (2.3m) 7s
Most Powerful 1AM (Wed 23rd Jul)7.5ft (2.3m) 7s

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

Updates in  hr  min  s Forecast update imminent

Short Range Forecast Mostly dry. Very mild (max 16°C on Sat morning, min 8°C on Sat night). Wind will be generally light.

Days 3-6 Weather Summary Light rain (total 2mm), mostly falling on Tue night. Very mild (max 18°C on Tue afternoon, min 10°C on Wed night). Wind will be generally light.

Saturday
19
Sunday
20
Monday
21
Tuesday
22
Wednesday
23
Thursday
24
Friday
25
AMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNight
Rating
(10 max)
0
0
0
0
0
0
0
0
0
0
0
0
Swell
Height Map
Wave Height (m) & direction (?)
0.9
SE
0.8
ESE
0.5
ESE
0.6
E
0.6
E
1.2
E
1.2
E
1.2
E
1.5
ENE
1.6
ENE
1.8
ENE
2.3
NE
1.5
ENE
1.4
ENE
1.4
ENE
1.5
SSE
1.4
SSE
1
E
1.2
E
1.2
E
1
E
Period(s) (?)66677999898781096788810
Wave
Graph
(?)Metric surfscale
Energy (?)4741323778235230233341439393982257386304312283167191264350
Wind
(km/h)
10
SW
5
ESE
10
WSW
10
WSW
20
SSE
5
ENE
5
WSW
10
E
10
N
25
NNE
20
NNE
15
NNW
15
N
5
WSW
15
SW
15
SSW
15
SSE
5
E
10
N
20
N
25
NW
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
cross-
off
cross-
on
offcross-
off
crossglassoffoncrosscrosscross-
on
cross-
off
cross-
off
glasscross-
off
cross-
off
cross-
on
glasscrosscrosscross-
off
High Tide
/ height (m)
3:13PM
1.44
3:36AM
1.03
4:15PM
1.51
4:53AM
1.00
5:14PM
1.59
6:03AM
1.02
6:10PM
1.66
7:02AM
1.05
7:03PM
1.71
7:53AM
1.08
7:51PM
1.74
8:39AM
1.12
8:36PM
1.72
Low Tide
/ height (m)
9:53PM
0.37
9:26AM
0.32
11:06PM
0.29
10:28AM
0.35
12:11AM
0.19
11:28AM
0.34
1:07AM
0.11
12:25PM
0.32
1:57AM
0.06
1:17PM
0.29
2:42AM
0.03
2:06PM
0.28
3:24AM
0.04
Saturday
19
Sunday
20
Monday
21
Tuesday
22
Wednesday
23
Thursday
24
Friday
25
Sunrise6:54--6:54--6:54--6:54--6:52--6:52--6:52--
Sunset-5:06--5:07--5:07--5:07--5:07--5:08--5:09-
clearclearclearclearpart cloudpart cloudclearclearpart cloudcloudpart cloudrain showerspart cloudrain showersclearclearclearpart cloudpart cloudlight rainrain showers
Rain (mm)
-----------1-1-----13
Temp. °C161612141616161615171815181812161615161514
Feels °C (?)1414101012131414131314111617712121311117
  • 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 Offshore wind has become cross-off at Avalon-South (light winds from the WSW at Cromer wx 13 km from Avalon-South). 1.3m 6s windswell from the SSE with a 0.7m 6s windswell, also from the SSE. Swells combining to make to make bigger set waves.

    Avalon-South
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Actual: 27 min ago

13 km/h
WSW
Cross-Off
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.


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.

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