Backdoor 4 Surf Break

Lat Long: 33.28° S 151.57° E

Backdoor 4 48 hour detailed Surf Forecast

Issued: 3 am 06 Sep 2026 (local time)

Forecast update in  hr  min

Today's Backdoor 4 sea temperature is
18.7°C
0.4° 

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 (06 Sep):

  • Morning surf: Morning surf (06 Sep, local time) - 1.5ft (0.5m), 7s period with NE swell.
  • Afternoon surf: Afternoon surf (06 Sep, local time) - 4ft (1.2m), 8s period with S swell.
  • Evening surf: Evening surf (06 Sep, local time) - 10ft (3.0m), 11s period with S swell.

The current surf forecast for Backdoor 4 at 10AM is: 0.4m 7s primary swell from a Northeast direction and 0.2m 11s secondary swell from a East direction (forecast issued at 03:00am September 06). An open ocean swell of 1.0m 6s is not directed at the surf break. The wind direction is predicted to be cross-offshore.

Time (AEST) & DateWave HeightWave Period
Morning (06 Sep)1.5ft (0.5m)7s
Afternoon (06 Sep)4ft (1.2m)8s
Evening (06 Sep)10ft (3.0m)11s

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


Short Range Forecast

Light rain (total 2mm), mostly falling on Mon night. Very mild (max 19°C on Sun morning, min 11°C on Tue night). Winds increasing (calm on Mon morning, fresh winds from the S by Mon night).

Sunday
6
Monday
7
Tuesday
8
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
1 AM
4 AM
7 AM
10 AM
1 PM
4 PM
7 PM
10 PM
Rating
(10 max)
0
0
0
0
1
1
1
!
!
3
2
2
0
0
1
1
!
!
!
!
!
!
!
!
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
0.5
S
10
0.5
S
10
0.5
S
10
0.4
NE
7
1.1
S
7
1.2
S
8
1.8
S
8
3
S
11
2.5
S
10
2
S
9
1.7
S
9
1.5
S
8
1.5
S
8
1.6
SSE
9
1
SE
9
1.6
SSE
8
2.5
S
7
3
S
8
3
S
10
3
S
10
2.5
S
9
2.4
SSE
9
2.3
SSE
10
2.2
SSE
10
Wave Graph
Metric surfscale
Energy kJ
44
44
45
11
134
164
450
1769
1250
678
421
295
295
349
169
376
652
1310
1856
1462
1102
938
939
878
Wind (km/h)
20
WSW
25
W
20
W
20
SW
15
SSE
25
SSE
25
S
25
S
15
SSW
10
SW
10
WSW
5
N
20
ENE
25
E
20
SE
30
S
35
S
35
S
30
S
25
S
20
SSE
15
SSE
10
E
10
NNE
Wind State
cross-off
cross
cross
cross-off
off
off
off
off
off
cross-off
cross-off
glassy
cross
cross
cross-off
off
off
off
off
off
off
cross-off
cross-off
on
High Tide
3:44AM0.96m
3:54PM1.49m
4:59AM1.02m
5:00PM1.56m
5:57AM1.12m
5:57PM1.63m
Low Tide
9:08AM0.47m
10:58PM0.24m
10:24AM0.43m
11:54PM0.15m
11:29AM0.35m
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
cloud
cloud
part cloud
clear
clear
part cloud
rain showers
rain showers
cloud
cloud
part cloud
clear
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:05
6:03
6:03
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
5:37
5:38
5:39
 mm
1
1
Temp °C
21
18
15
18
19
18
17
17
16
15
15
16
17
17
17
15
15
15
15
15
16
15
15
15
Feels °C
17
11
9
13
15
13
13
13
14
13
14
16
13
13
13
10
8
8
8
10
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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