Surf Break

Lat Long: 33.28° S 151.57° E

Backdoor 4 48 hour detailed Surf Forecast

Issued: 3 pm 28 Sep 2026 (local time)

Forecast update in  hr  min

Today's Backdoor 4 sea temperature is
18.7°C
0.0° 

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 (28 Sep):

  • Afternoon surf: Afternoon surf (28 Sep, local time) - 4ft (1.2m), 8s period with S swell.
  • Evening surf: Evening surf (28 Sep, local time) - 3.5ft (1.1m), 9s period with S swell.

The current surf forecast for Backdoor 4 at 8PM is: 1.1m 9s primary swell from a South direction and 0.4m 9s secondary swell from a East-northeast direction (forecast issued at 03:00pm September 28). An open ocean swell of 0.8m 6s is not directed at the surf break. The wind direction is predicted to be cross-offshore and the swell rating is 2.

Time (AEST) & DateWave HeightWave Period
Morning (28 Sep)--
Afternoon (28 Sep)4ft (1.2m)8s
Evening (28 Sep)3.5ft (1.1m)9s

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


Short Range Forecast

Mostly dry. Warm (max 24°C on Thu morning, min 12°C on Tue night). Winds increasing (calm on Mon night, fresh winds from the NE by Wed afternoon).

Mon
28
Tuesday
29
Wednesday
30
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)
1
1
1
2
2
2
2
1
0
0
0
0
1
1
1
0
0
0
0
0
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
1.2
S
8
1.2
S
8
1.1
S
8
1.1
S
9
1.1
SSE
10
1.1
S
10
1.1
S
10
1.1
S
10
1.1
S
10
1.1
S
10
1
S
10
0.6
S
17
0.8
S
16
0.9
S
16
0.9
S
16
0.8
S
15
1
S
15
0.9
S
14
0.8
S
14
0.7
S
14
Wave Graph
Metric surfscale
Energy kJ
200
196
165
207
235
231
235
235
230
225
186
210
343
417
401
294
434
338
257
195
Wind (km/h)
20
SE
15
ESE
15
ESE
15
ESE
5
ESE
5
ESE
0
NNE
10
NE
20
ENE
25
ENE
25
NE
25
NNE
15
N
10
N
15
N
15
NNE
30
ENE
35
NE
30
NNE
20
NNE
Wind State
cross-off
cross-off
cross-off
cross-off
cross-off
glassy
glassy
cross-on
cross
cross-on
cross-on
on
on
on
on
cross-on
cross-on
cross-on
cross-on
on
High Tide
9:09PM1.37m
9:30AM1.60m
9:54PM1.28m
10:13AM1.60m
Low Tide
3:08PM0.14m
3:09AM0.15m
3:55PM0.14m
3:47AM0.22m
4:47PM0.17m
cloud
cloud
cloud
part cloud
clear
clear
part cloud
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
—
—
—
—
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5:35
—
—
—
—
—
—
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5:33
—
—
—
—
—
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<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
—
5:52
—
—
—
—
—
—
—
5:53
—
—
—
—
—
—
—
5:53
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 mm
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
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Temp °C
16
16
16
16
16
16
15
16
16
17
17
15
14
13
12
17
21
19
19
18
Feels °C
12
12
13
12
14
14
14
14
12
12
12
11
11
11
9
14
15
13
14
15
  • 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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