Backdoor 4 Surf Break

Lat Long: 33.28° S 151.57° E

Backdoor 4 48 hour detailed Surf Forecast

Issued: 3 am 22 Sep 2026 (local time)

Forecast update in  hr  min

Today's Backdoor 4 sea temperature is
18.8°C
0.2° 

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 (22 Sep):

  • Morning surf: Morning surf (22 Sep, local time) - 6ft (1.8m), 9s period with S swell.
  • Afternoon surf: Afternoon surf (22 Sep, local time) - 6ft (1.8m), 11s period with SSE swell.
  • Evening surf: Evening surf (22 Sep, local time) - 4ft (1.2m), 10s period with S swell.

The current surf forecast for Backdoor 4 at 7AM is: 2.1m 9s primary swell from a South direction and 0.3m 15s secondary swell from a South direction (forecast issued at 03:00am September 22). The wind direction is predicted to be offshore and the swell rating is 11.

Time (AEST) & DateWave HeightWave Period
Morning (22 Sep)6ft (1.8m)9s
Afternoon (22 Sep)6ft (1.8m)11s
Evening (22 Sep)4ft (1.2m)10s

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


Short Range Forecast

Moderate rain (total 14mm), heaviest on Tue night. Very mild (max 19°C on Thu morning, min 15°C on Tue morning). Winds increasing (calm on Tue afternoon, fresh winds from the NE by Thu afternoon).

Tuesday
22
Wednesday
23
Thursday
24
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
3
2
3
2
2
2
0
0
0
0
0
0
0
0
0
0
0
0
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
10
2.5
S
10
2.1
S
9
1.7
S
9
1.4
SSE
8
1.8
SSE
11
1.3
S
10
1.2
S
10
0.7
S
19
0.8
S
19
0.7
S
17
1.7
ENE
6
2
ENE
6
2
ENE
6
2
ENE
6
1.8
ENE
6
1.7
ENE
6
1.5
ENE
6
1.4
ENE
6
1.2
ENE
6
1.3
ENE
6
1.6
ENE
6
1.8
ENE
6
1.6
ENE
6
Wave Graph
Metric surfscale
Energy kJ
1600
1243
763
442
264
692
325
260
347
446
268
230
309
329
302
263
230
169
131
102
95
160
233
190
Wind (km/h)
25
SSE
20
S
20
S
10
SSE
5
SE
5
S
0
SW
5
N
10
NNE
5
N
10
NNE
15
NE
30
NE
30
NE
30
NE
30
NE
25
NE
25
NE
20
NE
20
NE
30
ENE
35
NE
35
NE
20
NNE
Wind State
off
off
off
cross-off
glassy
glassy
glassy
glassy
on
on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
High Tide
5:17AM1.00m
5:08PM1.36m
5:57AM1.10m
5:51PM1.42m
6:33AM1.20m
6:30PM1.46m
Low Tide
11:15PM0.38m
10:43AM0.53m
11:53PM0.30m
11:33AM0.45m
00:26AM0.22m
12:17PM0.37m
cloud
cloud
cloud
light rain
light rain
light rain
light rain
light rain
light rain
light rain
light rain
light rain
rain showers
cloud
part cloud
cloud
part cloud
part cloud
part cloud
clear
clear
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:43
5:43
5:41
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
5:49
5:50
5:50
 mm
1
1
1
2
3
2
1
1
1
1
Temp °C
15
15
15
15
16
16
15
15
15
15
16
17
17
18
18
18
18
18
18
19
18
18
17
17
Feels °C
11
11
12
14
17
16
16
16
15
15
16
15
13
13
13
14
14
15
15
16
14
13
12
14
  • 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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