Surf Break

Lat Long: 33.28° S 151.57° E

Backdoor 4 48 hour detailed Surf Forecast

Issued: 9 am 27 Sep 2026 (local time)

Forecast update in  hr  min

Today's Backdoor 4 sea temperature is
18.1°C
0.6° 

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 (27 Sep):

  • Morning surf: Morning surf (27 Sep, local time) - 6ft (1.8m), 7s period with S swell.
  • Afternoon surf: Afternoon surf (27 Sep, local time) - 7.5ft (2.3m), 8s period with SSE swell.
  • Evening surf: Evening surf (27 Sep, local time) - 6ft (1.8m), 8s period with S swell.

The current surf forecast for Backdoor 4 at 4PM is: 2.5m 8s primary swell from a South-southeast direction and 0.6m 7s secondary swell from a East-northeast direction (forecast issued at 09:00am September 27). The wind direction is predicted to be cross-offshore and the swell rating is 11.

Time (AEST) & DateWave HeightWave Period
Morning (27 Sep)6ft (1.8m)7s
Afternoon (27 Sep)7.5ft (2.3m)8s
Evening (27 Sep)6ft (1.8m)8s

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


Short Range Forecast

Light rain (total 5mm), mostly falling on Sun afternoon. Very mild (max 17°C on Sun morning, min 12°C on Tue night). Winds decreasing (strong winds from the SSE on Sun morning, calm by Mon night).

Sunday
27
Monday
28
Tuesday
29
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)
2
2
0
!
!
2
2
2
1
1
1
1
1
1
1
1
2
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)
2
S
7
1.8
S
7
1.6
S
7
2.5
SSE
8
2.3
SSE
8
1.8
S
8
1.6
S
8
1.5
S
8
1.5
S
8
1.4
S
8
1.2
S
8
1.2
S
8
1.1
S
8
1.1
S
9
1.2
SSE
10
1.2
SSE
10
1.2
SSE
10
1.2
S
10
1.2
S
10
1.1
S
10
1.1
S
9
0.6
S
17
Wave Graph
Metric surfscale
Energy kJ
431
349
279
727
655
428
360
309
309
266
196
196
165
211
248
253
288
273
273
220
211
217
Wind (km/h)
25
S
20
SSW
45
SSE
30
SSE
20
SE
25
SSE
20
SE
20
SE
15
SE
20
SE
15
ESE
15
ESE
10
ESE
10
E
5
E
5
ENE
5
NW
10
ENE
20
ENE
25
ENE
25
NE
25
NNE
Wind State
off
off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross
cross
cross
glassy
cross-on
cross
cross-on
cross-on
cross-on
High Tide
8:15AM1.50m
8:27PM1.44m
8:51AM1.56m
9:09PM1.37m
9:30AM1.60m
9:54PM1.28m
Low Tide
2:23PM0.17m
2:34AM0.11m
3:08PM0.14m
3:09AM0.15m
3:55PM0.14m
cloud
cloud
light rain
light rain
light rain
light rain
cloud
cloud
cloud
cloud
part cloud
clear
part cloud
part cloud
part cloud
clear
clear
clear
clear
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:37
—
—
—
—
—
—
5:35
—
—
—
—
—
—
—
5:35
—
—
—
—
—
—
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
—
—
—
5:52
—
—
—
—
—
—
—
5:52
—
—
—
—
—
—
—
5:53
—
—
 mm
—
—
1
2
1
1
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
Temp °C
15
17
15
14
14
14
15
15
15
16
15
15
16
16
16
15
15
16
16
16
16
16
Feels °C
11
13
8
9
10
9
10
10
11
11
11
11
13
13
13
13
14
13
12
11
11
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 

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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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