Backdoor 4 Surf Break

Lat Long: 33.28° S 151.57° E

Backdoor 4 48 hour detailed Surf Forecast

Issued: 9 pm 05 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 (0.4m), 7s period with NE swell.
  • Afternoon surf: Afternoon surf (06 Sep, local time) - 3.5ft (1.1m), 7s 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 3AM is: 0.5m 10s primary swell from a South direction and 0.6m 6s secondary swell from a East-northeast direction (forecast issued at 09:00pm September 05). An open ocean swell of 0.4m 3s is not directed at the surf break. The wind direction is predicted to be cross-shore.

Time (AEST) & DateWave HeightWave Period
Morning (06 Sep)1.5ft (0.4m)7s
Afternoon (06 Sep)3.5ft (1.1m)7s
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 3mm), mostly falling on Mon night. Warm (max 25°C on Sat night, min 15°C on Sat night). Winds increasing (calm on Mon morning, fresh winds from the S by Mon night).

Sat
5
Sunday
6
Monday
7
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
0
0
1
0
1
!
!
!
3
2
1
1
1
2
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
0.6
S
10
0.6
S
10
0.5
S
10
0.5
S
10
0.5
S
10
0.4
NE
7
1.1
S
7
1.1
S
8
1.6
S
9
3
S
11
2.5
S
10
2.1
S
10
1.8
S
9
1.6
S
8
1.5
S
8
1.4
S
9
1.4
S
9
1.5
S
9
Wave Graph
Metric surfscale
Energy kJ
64
65
44
44
45
15
131
135
380
1802
1546
797
505
347
309
297
304
340
Wind (km/h)
20
WNW
15
NW
20
WSW
25
WNW
20
WNW
15
SW
20
SSE
20
SSE
25
S
20
S
15
SSW
15
SSW
10
SW
5
W
15
E
20
ESE
20
SE
25
SSE
Wind State
cross-on
cross-on
cross-off
cross
cross
cross-off
off
cross-off
off
off
cross-off
cross-off
cross-off
glassy
cross
cross-off
cross-off
off
High Tide
3:44AM0.96m
3:54PM1.49m
4:59AM1.02m
5:00PM1.56m
Low Tide
9:46PM0.33m
9:08AM0.47m
10:58PM0.24m
10:24AM0.43m
light rain
clear
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
cloud
cloud
cloud
clear
clear
part cloud
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:05
6:03
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
5:37
5:38
 mm
1
Temp °C
22
25
21
18
15
18
19
18
17
16
16
16
15
16
17
17
17
16
Feels °C
19
21
17
12
9
13
14
13
12
13
14
14
14
15
14
13
13
12
  • 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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