Backdoor 4 Surf Break

Lat Long: 33.28° S 151.57° E

Backdoor 4 48 hour detailed Surf Forecast

Issued: 9 pm 09 Aug 2026 (local time)

Forecast update in  hr  min

Today's Backdoor 4 sea temperature is
17.7° C
0.7° 

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 (10 Aug):

  • Morning surf: Morning surf (10 Aug, local time) - 6ft (1.9m), 9s period with ENE swell.
  • Afternoon surf: Afternoon surf (10 Aug, local time) - 4.5ft (1.4m), 9s period with ENE swell.
  • Evening surf: Evening surf (10 Aug, local time) - 3.5ft (1.0m), 10s period with ENE swell.

The current surf forecast for Backdoor 4 at 4AM is: 2.4m 7s primary swell from a Northeast direction and 0.1m 14s secondary swell from a East direction, 0.1m 8s secondary swell from a South direction (forecast issued at 09:00pm August 09). The wind direction is predicted to be onshore.

Time (AEST) & DateWave HeightWave Period
Morning (10 Aug)6ft (1.9m)9s
Afternoon (10 Aug)4.5ft (1.4m)9s
Evening (10 Aug)3.5ft (1.0m)10s

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


Short Range Forecast

Light rain (total 3mm), mostly falling on Sun night. Warm (max 20°C on Tue morning, min 11°C on Tue night). Winds decreasing (strong winds from the NW on Mon afternoon, calm by Tue afternoon).

Sun
9
Monday
10
Tuesday
11
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
0
1
1
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
ENE
9
1.3
ENE
9
2.2
NE
6
2.4
NE
7
2.1
ENE
8
1.9
ENE
9
1.6
ENE
9
1.3
ENE
9
1.2
ENE
10
0.9
ENE
10
0.8
ENE
9
0.8
ENE
9
0.7
ENE
9
0.7
ENE
9
0.7
ENE
9
0.6
S
13
1.5
S
12
1.4
S
10
Wave Graph
Metric surfscale
Energy kJ
151
244
342
547
623
561
431
295
241
157
113
113
75
73
73
121
617
424
Wind (km/h)
15
N
30
NE
40
NNE
30
NNE
35
WNW
40
NW
40
NNW
45
NW
40
WNW
35
WNW
35
WNW
30
WNW
25
W
25
W
10
W
5
W
20
W
25
WNW
Wind State
on
cross-on
cross-on
on
cross
cross-on
cross-on
cross-on
cross-on
cross-on
cross
cross
cross
cross
cross
glassy
cross
cross-on
High Tide
5:11PM1.61m
6:03AM1.06m
6:09PM1.71m
6:59AM1.13m
7:02PM1.78m
Low Tide
00:08AM0.16m
11:31AM0.33m
1:02AM0.07m
12:29PM0.27m
light rain
light rain
clear
part cloud
cloud
rain showers
clear
clear
part cloud
cloud
part cloud
clear
part cloud
clear
clear
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:37
6:35
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
5:20
5:21
 mm
2
2
1
Temp °C
13
14
16
16
13
12
16
16
14
16
16
16
16
17
20
20
17
13
Feels °C
10
9
9
11
6
3
7
6
5
8
9
10
10
11
16
18
12
6
  • 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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