Backdoor 4 Surf Break

Lat Long: 33.28° S 151.57° E

Backdoor 4 48 hour detailed Surf Forecast

Issued: 3 am 05 Sep 2026 (local time)

Forecast update in  hr  min

Today's Backdoor 4 sea temperature is
18.8°C
0.5° 

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 (05 Sep):

  • Morning surf: Morning surf (05 Sep, local time) - 2.5ft (0.8m), 10s period with S swell.
  • Afternoon surf: Afternoon surf (05 Sep, local time) - 2.5ft (0.7m), 9s period with S swell.
  • Evening surf: Evening surf (05 Sep, local time) - 2ft (0.6m), 10s period with S swell.

The current surf forecast for Backdoor 4 at 12PM is: 0.7m 10s primary swell from a South direction and 0.3m 9s secondary swell from a East-northeast direction, 0.4m 3s secondary swell from a North-northeast direction (forecast issued at 03:00am September 05). The wind direction is predicted to be onshore.

Time (AEST) & DateWave HeightWave Period
Morning (05 Sep)2.5ft (0.8m)10s
Afternoon (05 Sep)2.5ft (0.7m)9s
Evening (05 Sep)2ft (0.6m)10s

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


Short Range Forecast

Light rain (total 3mm), mostly falling on Sat afternoon. Warm (max 30°C on Sat afternoon, min 14°C on Sun night). Winds increasing (calm on Mon morning, fresh winds from the S by Mon night).

Saturday
5
Sunday
6
Monday
7
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
0
0
0
0
0
0
0
0
0
1
1
!
!
!
3
2
2
1
2
3
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
12
0.6
S
11
0.8
S
10
0.8
S
10
0.7
S
9
0.6
S
9
0.6
S
10
0.6
S
10
0.5
S
10
0.5
S
10
0.4
S
10
0.5
NE
6
0.2
S
15
1.1
S
8
1.6
S
8
2.5
S
10
3
S
10
2.2
S
10
1.9
S
9
1.6
S
8
1.7
S
10
1.7
SSE
10
1.7
SSE
9
1.7
SSE
9
Wave Graph
Metric surfscale
Energy kJ
68
85
131
121
83
58
64
65
45
45
29
21
18
135
363
1585
1752
876
562
368
573
563
528
495
Wind (km/h)
10
WNW
10
NW
15
NNW
20
N
25
NNE
20
NNW
25
NNW
15
NNW
25
WSW
30
W
20
WNW
15
SW
20
S
20
SSE
30
S
25
S
15
SSW
10
WSW
10
W
0
SE
15
E
20
E
20
SE
25
SSE
Wind State
cross-on
cross-on
cross-on
on
on
on
on
cross-on
cross-off
cross
cross
cross-off
off
off
off
off
cross-off
cross-off
cross-off
glassy
cross
cross
cross-off
off
High Tide
2:14AM0.96m
2:40PM1.44m
3:44AM0.96m
3:54PM1.49m
4:59AM1.02m
5:00PM1.56m
Low Tide
7:47AM0.46m
9:46PM0.33m
9:08AM0.47m
10:58PM0.24m
10:24AM0.43m
clear
part cloud
clear
clear
part cloud
cloud
rain showers
clear
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
clear
clear
part cloud
clear
clear
clear
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:07
6:05
6:03
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
5:37
5:37
5:38
 mm
1
Temp °C
17
16
16
22
28
30
20
22
21
18
15
18
19
18
17
16
16
14
14
16
17
17
17
15
Feels °C
14
13
13
18
23
26
16
19
16
12
10
13
14
13
12
12
13
12
12
16
14
14
13
11
  • 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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