Backdoor 4 Surf Break

Lat Long: 33.28° S 151.57° E

Backdoor 4 48 hour detailed Surf Forecast

Issued: 3 am 08 Sep 2026 (local time)

Forecast update in  hr  min

Today's Backdoor 4 sea temperature is
19.0°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 (08 Sep):

  • Morning surf: Morning surf (08 Sep, local time) - 10ft (3.0m), 9s period with S swell.
  • Afternoon surf: Afternoon surf (08 Sep, local time) - 8ft (2.4m), 9s period with SSE swell.
  • Evening surf: Evening surf (08 Sep, local time) - 6ft (1.9m), 8s period with SSE swell.

The current surf forecast for Backdoor 4 at 6AM is: 3.0m 9s primary swell from a South direction and 0.2m 11s secondary swell from a East direction (forecast issued at 03:00am September 08). The wind direction is predicted to be offshore and the swell rating is 11.

Time (AEST) & DateWave HeightWave Period
Morning (08 Sep)10ft (3.0m)9s
Afternoon (08 Sep)8ft (2.4m)9s
Evening (08 Sep)6ft (1.9m)8s

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


Short Range Forecast

Light rain (total 3mm), mostly falling on Thu morning. Very mild (max 16°C on Tue morning, min 10°C on Wed night). Winds increasing (light winds from the SE on Tue afternoon, strong winds from the S by Wed afternoon).

Tuesday
8
Wednesday
9
Thursday
10
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)
!
!
!
!
!
!
3
2
0
0
1
2
0
!
!
!
!
!
!
!
!
!
!
!
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)
3
S
8
3
S
9
3
S
9
2.5
S
9
2.4
SSE
9
2.1
SSE
8
2
SSE
8
1.9
SSE
9
1.8
SSE
9
1.6
SSE
9
1.2
S
8
1.1
S
8
1.2
S
8
2.5
S
7
3
S
8
3.5
S
9
4
S
10
3.5
S
10
3
S
10
3
S
10
2.5
S
10
2.5
S
11
3
S
11
3
S
10
Wave Graph
Metric surfscale
Energy kJ
1004
1349
1487
1183
841
603
549
506
477
371
201
165
195
800
1417
2145
2920
2517
1985
1495
1595
1688
1908
1783
Wind (km/h)
40
S
30
S
30
S
30
S
20
SSE
15
SSE
5
SE
5
NNE
10
NW
10
NW
10
NW
10
SSW
40
SSW
40
S
40
S
40
S
35
S
30
SSW
25
SW
20
SW
30
SSW
30
S
25
S
20
S
Wind State
off
off
off
off
off
cross-off
cross-off
on
cross-on
cross-on
cross-on
cross-off
off
off
off
off
off
cross-off
cross-off
cross-off
off
off
off
off
High Tide
5:57AM1.12m
5:57PM1.63m
6:45AM1.22m
6:46PM1.66m
7:28AM1.31m
7:31PM1.65m
Low Tide
11:54PM0.15m
11:29AM0.35m
00:41AM0.08m
12:24PM0.27m
1:23AM0.04m
1:14PM0.21m
clear
cloud
rain showers
part cloud
clear
clear
clear
clear
clear
clear
clear
clear
clear
cloud
cloud
cloud
cloud
cloud
cloud
cloud
light rain
part cloud
clear
cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:03
6:01
6:01
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
5:39
5:39
5:40
 mm
1
1
Temp °C
16
15
15
16
16
16
15
15
13
12
11
15
16
14
15
15
14
12
10
11
13
15
15
15
Feels °C
8
9
8
9
11
12
13
13
10
9
8
12
8
5
6
6
6
5
4
6
7
8
10
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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