Surf Break

Lat Long: 33.28° S 151.57° E

Backdoor 4 48 hour detailed Surf Forecast

Issued: 3 am 25 Sep 2026 (local time)

Forecast update in  hr  min

Today's Backdoor 4 sea temperature is
18.4°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 (25 Sep):

  • Morning surf: Morning surf (25 Sep, local time) - 4.5ft (1.4m), 6s period with NE swell.
  • Afternoon surf: Afternoon surf (25 Sep, local time) - 5ft (1.6m), 6s period with ENE swell.
  • Evening surf: Evening surf (25 Sep, local time) - 5.5ft (1.7m), 7s period with ENE swell.

The current surf forecast for Backdoor 4 at 9AM is: 1.4m 6s primary swell from a Northeast direction and 1.2m 6s secondary swell from a East-northeast direction, 0.4m 10s secondary swell from a South direction (forecast issued at 03:00am September 25). The wind direction is predicted to be cross-onshore.

Time (AEST) & DateWave HeightWave Period
Morning (25 Sep)4.5ft (1.4m)6s
Afternoon (25 Sep)5ft (1.6m)6s
Evening (25 Sep)5.5ft (1.7m)7s

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


Short Range Forecast

Moderate rain (total 10mm), heaviest on Sun afternoon. Warm (max 28°C on Sat morning, min 13°C on Sun afternoon). Mainly strong winds.

Friday
25
Saturday
26
Sunday
27
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)
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
1
2
1
2
!
!
!
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)
1.7
ENE
7
1.7
NE
7
1.5
NE
6
1.4
NE
6
1.3
ENE
6
1.7
ENE
6
1.8
NE
7
1.7
ENE
7
1.8
NE
7
1.6
NE
7
1.6
NE
7
1
ENE
7
1.3
ENE
7
1.7
ENE
7
1.7
ENE
7
1.4
ENE
7
1.2
ENE
8
1.5
S
6
1.7
S
7
1.7
S
7
1.8
S
7
2.3
S
8
2.5
SSE
8
2.5
SSE
8
Wave Graph
Metric surfscale
Energy kJ
254
248
181
144
140
231
286
251
292
228
233
102
155
244
259
207
154
173
270
274
295
588
850
864
Wind (km/h)
20
NNE
15
N
10
N
20
NE
30
ENE
30
NE
30
NE
20
NNE
15
N
10
N
10
N
10
NE
25
ENE
25
NE
10
NE
40
S
35
S
25
S
25
S
30
S
25
SSW
35
SSE
30
SSE
30
SSE
Wind State
on
on
on
cross-on
cross-on
cross-on
cross-on
cross-on
on
on
on
cross-on
cross-on
cross-on
cross-on
off
off
off
off
off
off
off
cross-off
cross-off
High Tide
7:06AM1.31m
7:08PM1.49m
7:40AM1.41m
7:47PM1.48m
8:15AM1.50m
8:27PM1.44m
Low Tide
00:58AM0.16m
12:59PM0.29m
1:29AM0.12m
1:41PM0.22m
2:01AM0.10m
2:23PM0.17m
clear
part cloud
clear
clear
clear
cloud
cloud
part cloud
part cloud
clear
clear
clear
clear
clear
cloud
part cloud
cloud
cloud
cloud
cloud
cloud
light rain
light rain
light rain
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
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5:39
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—
—
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5:39
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—
—
—
—
—
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5:37
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—
—
—
—
—
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
—
—
—
—
—
5:51
—
—
—
—
—
—
—
5:52
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—
—
—
—
—
—
5:52
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 mm
—
—
—
—
—
—
—
—
—
—
—
—
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—
—
—
—
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—
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4
3
2
Temp °C
16
15
16
19
21
20
22
22
21
21
21
26
28
27
27
17
16
15
16
15
14
14
13
14
Feels °C
14
13
15
16
16
15
18
19
19
19
19
24
23
22
25
12
11
10
12
10
10
7
7
8
  • 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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