Backdoor 4 Surf Break

Lat Long: 33.28° S 151.57° E

Backdoor 4 48 hour detailed Surf Forecast

Issued: 9 pm 22 Sep 2026 (local time)

Forecast update in  hr  min

Today's Backdoor 4 sea temperature is
19.2°C
0.6° 

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 (23 Sep):

  • Morning surf: Morning surf (23 Sep, local time) - 2.5ft (0.7m), 16s period with S swell.
  • Afternoon surf: Afternoon surf (23 Sep, local time) - 7ft (2.2m), 7s period with ENE swell.
  • Evening surf: Evening surf (23 Sep, local time) - 7ft (2.1m), 7s period with ENE swell.

The current surf forecast for Backdoor 4 at 1AM is: 0.7m 19s primary swell from a South direction and 1.0m 9s secondary swell from a South direction (forecast issued at 09:00pm September 22). An open ocean swell of 1.4m 6s is not directed at the surf break. The wind direction is predicted to be cross-onshore.

Time (AEST) & DateWave HeightWave Period
Morning (23 Sep)2.5ft (0.7m)16s
Afternoon (23 Sep)7ft (2.2m)7s
Evening (23 Sep)7ft (2.1m)7s

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


Short Range Forecast

Light rain (total 8mm), mostly falling on Tue night. Warm (max 23°C on Fri morning, min 15°C on Thu night). Winds increasing (light winds from the NNE on Tue night, fresh winds from the NE by Thu afternoon).

Tue
22
Wednesday
23
Thursday
24
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)
2
1
0
1
1
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
Wave
Height (m)
Direction
Period (s)
1.6
SSE
10
1.2
S
10
0.7
S
19
0.8
S
19
0.7
S
17
1.8
ENE
6
2.1
ENE
6
2.3
ENE
7
2.3
ENE
7
2.1
ENE
7
1.9
ENE
7
1.6
ENE
6
1.5
ENE
6
1.4
ENE
6
1.7
ENE
6
2.1
ENE
6
2.2
NE
6
1.9
ENE
6
Wave Graph
Metric surfscale
Energy kJ
480
260
347
446
268
244
352
476
459
406
311
216
172
146
206
359
388
295
Wind (km/h)
10
ENE
15
NE
15
NE
15
NNE
15
NNE
25
NE
25
NE
35
NE
35
NE
25
NE
30
NE
20
NE
15
NNE
20
NE
35
ENE
40
NE
35
NE
25
NNE
Wind State
cross-on
cross-on
cross-on
cross-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
High Tide
5:08PM1.36m
5:57AM1.10m
5:51PM1.42m
6:33AM1.20m
6:30PM1.46m
Low Tide
11:53PM0.30m
11:33AM0.45m
00:26AM0.22m
12:17PM0.37m
light rain
light rain
light rain
rain showers
rain showers
rain showers
part cloud
clear
part cloud
part cloud
clear
clear
part cloud
clear
clear
clear
clear
cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:43
5:41
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
5:50
5:50
 mm
1
3
2
1
1
1
Temp °C
16
16
16
17
17
18
19
18
18
18
18
17
17
18
18
18
18
16
Feels °C
16
15
14
16
16
15
15
13
13
14
14
14
15
15
13
12
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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