Backdoor 4 Surf Break

Lat Long: 33.28° S 151.57° E

Backdoor 4 48 hour detailed Surf Forecast

Issued: 9 pm 21 Aug 2026 (local time)

Forecast update in  hr  min

Today's Backdoor 4 sea temperature is
17.5° 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 (22 Aug):

  • Morning surf: Morning surf (22 Aug, local time) - 1.5ft (0.4m), 6s period with NE swell.
  • Afternoon surf: Afternoon surf (22 Aug, local time) - 1.5ft (0.4m), 6s period with NE swell.
  • Evening surf: Evening surf (22 Aug, local time) - 1.5ft (0.4m), 6s period with NE swell.

The current surf forecast for Backdoor 4 at 1AM is: 0.4m 6s primary swell from a Northeast direction and 0.1m 7s secondary swell from a Southeast direction, 0.5m 4s secondary swell from a Northwest direction (forecast issued at 09:00pm August 21). The wind direction is predicted to be cross-onshore.

Time (AEST) & DateWave HeightWave Period
Morning (22 Aug)1.5ft (0.4m)6s
Afternoon (22 Aug)1.5ft (0.4m)6s
Evening (22 Aug)1.5ft (0.4m)6s

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


Short Range Forecast

Some drizzle, heaviest during Sat night. Very mild (max 19°C on Mon morning, min 13°C on Sun night). Winds increasing (light winds from the SE on Sat night, fresh winds from the NE by Mon afternoon).

Fri
21
Saturday
22
Sunday
23
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
1
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)
0.4
ENE
6
0.4
ENE
6
0.4
NE
6
0.4
NE
6
0.4
NE
6
0.4
NE
6
0.4
NE
6
0.4
NE
6
0.4
NE
6
0.4
NE
6
0.4
NE
6
0.4
S
12
1.1
S
11
1.5
S
10
1.3
S
9
0.7
S
14
0.9
S
12
1.2
S
11
Wave Graph
Metric surfscale
Energy kJ
15
15
9
9
9
9
9
10
10
9
9
47
295
461
270
200
240
348
Wind (km/h)
25
NW
20
NW
15
NW
15
WNW
15
W
15
WNW
15
SSE
10
E
15
SE
10
SE
10
SE
15
ESE
15
E
15
ENE
15
ENE
20
ENE
20
NE
20
NE
Wind State
cross-on
cross-on
cross-on
cross
cross
cross
cross-off
cross
cross-off
cross-off
cross-off
cross-off
cross
cross
cross-on
cross-on
cross-on
cross-on
High Tide
3:41AM0.86m
4:01PM1.29m
4:54AM0.89m
4:58PM1.35m
Low Tide
10:05PM0.51m
8:59AM0.56m
11:10PM0.46m
10:09AM0.54m
cloud
cloud
cloud
cloud
clear
clear
clear
clear
clear
clear
rain showers
part cloud
part cloud
cloud
part cloud
part cloud
cloud
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:24
6:22
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
5:29
5:29
 mm
1
Temp °C
17
16
15
15
14
17
18
18
16
16
16
16
16
16
16
17
17
16
Feels °C
13
12
12
13
11
13
14
15
14
15
14
13
14
13
12
13
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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