Surf Break

Lat Long: 33.28° S 151.57° E

Backdoor 4 48 hour detailed Surf Forecast

Issued: 9 pm 30 Sep 2026 (local time)

Forecast update in  hr  min

Today's Backdoor 4 sea temperature is
18.3°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 (01 Oct):

  • Morning surf: Morning surf (01 Oct, local time) - 3.5ft (1.1m), 6s period with NE swell.
  • Afternoon surf: Afternoon surf (01 Oct, local time) - 4.5ft (1.4m), 6s period with NE swell.
  • Evening surf: Evening surf (01 Oct, local time) - 5ft (1.6m), 6s period with NE swell.

The current surf forecast for Backdoor 4 at 1AM is: 1.6m 7s primary swell from a Northeast direction and 1.3m 6s secondary swell from a East-northeast direction, 0.7m 13s secondary swell from a South direction (forecast issued at 09:00pm September 30). The wind direction is predicted to be onshore.

Time (AEST) & DateWave HeightWave Period
Morning (01 Oct)3.5ft (1.1m)6s
Afternoon (01 Oct)4.5ft (1.4m)6s
Evening (01 Oct)5ft (1.6m)6s

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


Short Range Forecast

Moderate rain (total 16mm), heaviest on Sat afternoon. Warm (max 27°C on Thu morning, min 16°C on Sat morning). Winds decreasing (fresh winds from the NE on Thu afternoon, calm by Thu night).

Wed
30
Thursday
1
Friday
2
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
1
0
1
1
1
1
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
0.8
S
14
0.7
S
14
1.6
NE
7
1.6
NE
7
1.3
NE
7
1.1
NE
6
0.9
NE
7
1.5
NE
5
1.7
NE
6
1.5
NE
7
1.7
NE
7
1.2
NE
7
1.1
NE
7
0.9
ENE
7
0.9
ENE
7
0.9
ENE
7
1.1
NE
7
1.2
ENE
7
Wave Graph
Metric surfscale
Energy kJ
257
180
226
221
159
94
65
119
205
198
277
151
119
90
84
96
119
138
Wind (km/h)
30
NNE
15
N
15
N
10
NNW
10
NNW
15
NNE
25
NE
35
NE
30
NNE
20
N
15
N
10
NNW
5
WNW
5
ENE
25
SSE
10
SE
10
S
10
SSW
Wind State
cross-on
on
on
on
on
on
cross-on
cross-on
cross-on
on
on
on
glassy
cross
off
cross-off
off
off
High Tide
10:45PM1.17m
11:01AM1.56m
11:44PM1.06m
11:59AM1.51m
Low Tide
4:47PM0.17m
4:29AM0.30m
5:47PM0.23m
5:19AM0.40m
6:58PM0.27m
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
part cloud
clear
part cloud
clear
part cloud
part cloud
part cloud
cloud
cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
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5:31
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5:30
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—
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<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
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5:54
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5:55
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 mm
—
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Temp °C
20
19
19
19
19
25
27
24
21
23
22
22
20
23
19
19
19
19
Feels °C
14
15
15
16
16
21
21
17
16
19
18
19
18
21
17
19
19
19
  • 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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