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

information circle12 Day Weather and Surf, issued 3 am Monday 07 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 Monday (Jul 07) at 10AM. The primary swell is predicted to be 0.5m and 8s period with a secondary swell of 0.4m 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 0.4m 14s and forecast to arrive on Friday (Jul 11) at 10AM. Winds are predicted to be offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 2.2m 10s period and expected on Friday (Jul 11) at 10AM.

Wave TypeTime (AEST) & Date Wave Height & Period
Next good surf (1 star+)10AM (Mon 7th Jul)1.5ft (0.5m) 8s
Best Surf10AM (Mon 7th Jul)1.5ft (0.5m) 8s
Most Powerful10AM (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
Monday
07
Tuesday
08
Wednesday
09
Thursday
10
Friday
11
Saturday
12
Sunday
13
Monday
14
Tuesday
15
Wednesday
16
Thursday
17
Friday
18
AMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNight
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
Swell
Height Map
Wave Height (m) & direction (?)
0.5
SE
0.4
ENE
0.4
ENE
0.4
ENE
0.3
E
0.3
E
0.4
E
0.4
E
0.5
E
0.5
E
0.4
E
0.3
E
0.4
E
0.4
E
0.3
E
0.3
E
0.3
E
0.3
E
0.2
E
0.2
E
0.2
E
0.2
E
0.1
E
0.3
SSE
0.2
N
0.1
E
0.1
E
0.1
E
0.1
E
0.1
E
0.8
SSE
0.8
SSE
0.6
SSE
0.4
SSE
0.4
SE
0.3
SE
Period(s) (?)8991010101010101111111414141313131212121211841313121212988777
Wave
Graph
(?)Metric surfscale
Energy (?)7253414324223542807467466962353130282222121742313363399844421137
Wind
(km/h)
15
WNW
20
WSW
10
W
15
NW
20
NW
15
NNW
15
NW
15
N
15
NNW
35
NW
35
WNW
20
W
20
W
15
SW
15
WNW
10
W
10
E
10
NW
10
W
5
SSE
15
WNW
15
NW
15
NNW
20
NNW
30
WNW
35
WNW
20
W
25
WSW
15
WSW
15
WNW
15
WNW
15
W
15
W
25
SW
20
S
15
W
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
offcross-
off
offcross-
off
cross-
off
cross-
off
cross-
off
crosscross-
off
cross-
off
cross-
off
offoffcross-
off
offoffoncross-
off
offglasscross-
off
cross-
off
cross-
off
cross-
off
offoffoffoffoffoffoffoffoffcross-
off
crossoff
High Tide
/ height (m)
5:52PM
1.43
6:28AM
0.95
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
Low Tide
/ height (m)
11:04AM
0.44
12:46AM
0.34
11:51AM
0.42
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
Monday
07
Tuesday
08
Wednesday
09
Thursday
10
Friday
11
Saturday
12
Sunday
13
Monday
14
Tuesday
15
Wednesday
16
Thursday
17
Friday
18
Sunrise6:58--6:58--6:58--6:58--6:58--6:58--6:58--6:56--6:56--6:56--6:56--6:56--
Sunset-4:59--5:00--5:00--5:00--5:00--5:01--5:01--5:02--5:02--5:04--5:05--5:05-
clearpart cloudclearpart cloudpart cloudclearpart cloudpart cloudclearclearclearclearclearclearclearclearpart cloudclearclearclearclearclearpart cloudpart cloudclearpart cloudclearclearclearclearclearclearpart cloudclearclearclear
Rain (mm)
------------------------------------
Temp. °C161513161714181814141311141512161615171714181816151310151611171812121311
Feels °C (?)121010111291515116448108131413141510131410754911713138577

Short Range Forecast: Mostly dry. Very mild (max 18°C on Wed morning, min 10°C on Mon night). Wind will be generally light.

Days 3-6 Weather Summary Mostly dry. Very mild (max 16°C on Sat morning, min 9°C on Thu night). Winds decreasing (fresh winds from the WNW on Thu afternoon, light winds from the NNE by Sat afternoon).

Days 6-9 Weather Summary Mostly dry. Very mild (max 18°C on Mon morning, min 8°C on Tue night). Winds increasing (calm on Sun afternoon, fresh winds from the WNW by Tue afternoon).

Long Range Forecast: Mostly dry. Very mild (max 18°C on Thu afternoon, min 8°C on Fri 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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