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

information circle12 Day Weather and Surf, issued 3 pm Tuesday 08 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
18.2° 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 Wednesday (Jul 09) at 7PM. The primary swell is predicted to be 1.0m and 4s period with a secondary swell of 0.4m and 10s. The wind is predicted to be cross-offshore as the swell arrives.

The most powerful waves expected at Avalon-South in the next 12 days are 0.4m 14s and forecast to arrive on Friday (Jul 11) at 1PM. Winds are predicted to be offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.9m 11s period and expected on Friday (Jul 11) at 1PM.

Wave TypeTime (AEST) & Date Wave Height & Period
Next good surf (1 star+) 7PM (Wed 9th Jul)1.5ft (0.4m) 10s
Best Surf 7PM (Wed 9th Jul)1.5ft (0.4m) 10s
Most Powerful 1PM (Fri 11th Jul)1.5ft (0.4m) 14s

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

Updates in  hr  min  s Forecast update imminent
Tue
08
Wednesday
09
Thursday
10
Friday
11
Saturday
12
Sunday
13
Monday
14
Tuesday
15
Wednesday
16
Thursday
17
Friday
18
Saturday
19
Sun
20
PMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAM
Rating
(10 max)
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Swell
Height Map
Wave Height (m) & direction (?)
0.4
ENE
0.3
E
0.4
E
0.4
E
0.5
E
0.5
E
0.4
E
0.3
E
0.3
E
0.4
E
0.4
E
0.3
E
0.3
E
0.3
E
0.2
E
0.2
E
0.2
E
0.2
E
0.2
E
0.1
E
0.1
E
0.5
NNE
0.1
E
0.1
E
0.1
E
0.1
E
0.1
E
0.1
E
0.1
E
0.1
E
0.4
NNE
0.1
E
0.5
NE
0.5
NE
0.2
ENE
2.4
S
Period(s) (?)1010101010111111141414131312121212121212135131212121211111131056610
Wave
Graph
(?)Metric surfscale
Energy (?)3919365470826540456262313056111113221633123363322462162160
Wind
(km/h)
25
NW
15
NNW
10
NW
15
N
15
NNW
35
WNW
35
WNW
20
W
20
W
20
W
15
W
10
W
20
SW
10
W
10
NW
0
NNE
15
NW
15
W
5
SW
0
NW
25
WSW
30
WSW
20
W
20
WSW
10
SW
10
WNW
10
W
10
ENE
15
NW
20
NW
20
NW
15
NNW
25
W
20
SW
25
SW
15
WSW
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
cross-
off
cross-
off
cross-
off
crosscross-
off
cross-
off
offoffoffoffoffoffcross-
off
offcross-
off
glasscross-
off
offcross-
off
glassoffcross-
off
offcross-
off
cross-
off
offoffoncross-
off
cross-
off
cross-
off
cross-
off
offcross-
off
cross-
off
off
High Tide
/ height (m)
6:34PM
1.49
7:15AM
0.98
7:15PM
1.55
7:58AM
1.01
7:56PM
1.60
8:39AM
1.04
8:35PM
1.64
9:20AM
1.07
9:14PM
1.64
10:02AM
1.11
9:54PM
1.62
10:46AM
1.15
10:36PM
1.56
11:33AM
1.20
11:21PM
1.47
12:22PM
1.25
12:11AM
1.35
1:15PM
1.31
1:09AM
1.23
2:12PM
1.37
2:18AM
1.11
3:13PM
1.44
3:36AM
1.03
Low Tide
/ height (m)
1:28AM
0.27
12:36PM
0.40
2:08AM
0.21
1:19PM
0.37
2:47AM
0.16
2:01PM
0.35
3:25AM
0.12
2:44PM
0.34
4:03AM
0.09
3:28PM
0.35
4:41AM
0.08
4:16PM
0.37
5:20AM
0.09
5:09PM
0.40
6:01AM
0.11
6:08PM
0.43
6:44AM
0.16
7:17PM
0.44
7:32AM
0.22
8:33PM
0.43
8:26AM
0.28
9:53PM
0.37
9:26AM
0.32
Tue
08
Wednesday
09
Thursday
10
Friday
11
Saturday
12
Sunday
13
Monday
14
Tuesday
15
Wednesday
16
Thursday
17
Friday
18
Saturday
19
Sun
20
Sunrise--6:58--6:58--6:58--6:58--6:58--6:56--6:56--6:56--6:56--6:56--6:54--6:54
Sunset5:00--5:00--5:00--5:00--5:01--5:01--5:02--5:02--5:04--5:05--5:05--5:06--
part cloudclearclearpart cloudclearclearclearclearclearclearclearclearclearclearclearpart cloudpart cloudpart cloudcloudrain showerspart cloudclearclearclearclearclearpart cloudclearclearclearpart cloudpart cloudpart cloudpart cloudpart cloudclear
Rain (mm)
-------------------1----------------
Temp. °C16141818131512111617131817131618141616131314917181216161418191313121013
Feels °C (?)109141497451111813121013161012141156313158141311121497749

Short Range Forecast: Mostly dry. Very mild (max 18°C on Wed morning, min 9°C on Thu night). Winds increasing (light winds from the NW on Tue night, fresh winds from the WNW by Thu morning).

Days 3-6 Weather Summary Mostly dry. Very mild (max 18°C on Sat morning, min 10°C on Sat night). Wind will be generally light.

Days 6-9 Weather Summary Some drizzle, heaviest during Mon night. Very mild (max 18°C on Wed afternoon, min 8°C on Tue night). Winds increasing (calm on Mon night, fresh winds from the WSW by Tue afternoon).

Long Range Forecast: Mostly dry. Very mild (max 19°C on Fri afternoon, min 7°C on Sat night). Wind will be generally light.

  • 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 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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