Backdoor 4 Surf Break

Lat Long: 33.28° S 151.57° E

Backdoor 4 48 hour detailed Surf Forecast

Issued: 9 am 11 Aug 2026 (local time)

Forecast update in  hr  min

Today's Backdoor 4 sea temperature is
17.7° C
0.7° 

Backdoor 4 surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.


How big are the waves at Backdoor 4 today (11 Aug):

  • Morning surf: Morning surf (11 Aug, local time) - 2.5ft (0.7m), 9s period with ENE swell.
  • Afternoon surf: Afternoon surf (11 Aug, local time) - 5ft (1.5m), 11s period with S swell.
  • Evening surf: Evening surf (11 Aug, local time) - 5.5ft (1.7m), 11s period with S swell.

The current surf forecast for Backdoor 4 at 2PM is: 0.7m 9s primary swell from a East-northeast direction and 0.3m 4s secondary swell from a West-northwest direction (forecast issued at 09:00am August 11). An open ocean swell of 0.9m 7s is not directed at the surf break. The wind direction is predicted to be cross-shore.

Time (AEST) & DateWave HeightWave Period
Morning (11 Aug)2.5ft (0.7m)9s
Afternoon (11 Aug)5ft (1.5m)11s
Evening (11 Aug)5.5ft (1.7m)11s

Table - waves today at Backdoor 4. (Swell directed towards the surf break)


Short Range Forecast

Mostly dry. Warm (max 20°C on Tue morning, min 12°C on Tue night). Wind will be generally light.

Tuesday
11
Wednesday
12
Thursday
13
7 AM
10 AM
1 PM
4 PM
7 PM
10 PM
1 AM
4 AM
7 AM
10 AM
1 PM
4 PM
7 PM
10 PM
1 AM
4 AM
7 AM
10 AM
1 PM
4 PM
7 PM
10 PM
Rating
(10 max)
0
0
0
2
1
0
1
0
0
0
1
1
0
0
0
0
0
0
2
4
2
2
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
0.7
ENE
9
0.7
ENE
9
0.7
ENE
9
1.5
S
11
1.8
S
11
1.7
S
11
1.6
S
11
1.5
S
11
1.3
S
10
1.3
S
10
1.2
S
10
1
S
9
0.9
S
9
0.8
S
9
0.9
S
8
0.9
S
8
0.5
ENE
10
0.5
ENE
10
1.4
S
8
2
S
9
1.7
S
9
1.5
S
8
Wave Graph
Metric surfscale
Energy kJ
76
76
76
563
723
683
606
505
347
333
267
164
127
93
111
105
54
52
260
651
450
305
Wind (km/h)
25
W
25
W
15
W
15
WNW
20
W
25
W
25
W
20
NW
20
NW
20
WNW
15
WSW
10
WNW
20
W
20
W
20
W
20
W
20
WSW
20
SSW
15
SSE
15
SE
10
ESE
10
SSW
Wind State
cross
cross
cross
cross
cross
cross
cross
cross-on
cross-on
cross
cross-off
cross-on
cross
cross
cross
cross
cross-off
cross-off
off
cross-off
cross-off
cross-off
High Tide
6:59AM1.13m
7:02PM1.78m
7:49AM1.20m
7:50PM1.80m
8:34AM1.27m
8:36PM1.77m
Low Tide
12:29PM0.27m
1:50AM-0.00m
1:22PM0.22m
2:33AM-0.03m
2:12PM0.19m
clear
clear
clear
clear
clear
clear
clear
clear
cloud
part cloud
part cloud
cloud
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:35
6:35
6:33
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
5:21
5:22
5:22
 mm
Temp °C
16
17
20
20
17
14
13
12
12
16
18
19
17
14
13
12
12
14
15
15
15
15
Feels °C
10
11
16
16
11
8
7
7
7
11
13
16
12
9
8
7
7
9
12
12
13
13
  • 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
How to use the Wavefinder 

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 Backdoor 4 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.


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