Surf Break

Lat Long: 33.28° S 151.57° E

Backdoor 4 48 hour detailed Surf Forecast

Issued: 10 pm 21 Oct 2026 (local time)

Forecast update in  hr  min

Today's Backdoor 4 sea temperature is
20.5°C
1.4° 

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 Oct):

  • Morning surf: Morning surf (22 Oct, local time) - 5.5ft (1.7m), 7s period with ENE swell.
  • Afternoon surf: Afternoon surf (22 Oct, local time) - 8ft (2.4m), 7s period with ENE swell.
  • Evening surf: Evening surf (22 Oct, local time) - 6ft (1.9m), 7s period with ENE swell.

The current surf forecast for Backdoor 4 at 6AM is: 1.6m 8s primary swell from a East-northeast direction and 0.1m 11s secondary swell from a South direction (forecast issued at 10:00pm October 21). The wind direction is predicted to be cross-shore.

Time (AEDT) & DateWave HeightWave Period
Morning (22 Oct)5.5ft (1.7m)7s
Afternoon (22 Oct)8ft (2.4m)7s
Evening (22 Oct)6ft (1.9m)7s

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


Short Range Forecast

Heavy rain (total 21mm), heaviest during Wed night. Warm (max 22°C on Sat morning, min 17°C on Fri night). Winds decreasing (fresh winds from the ENE on Thu afternoon, light winds from the WNW by Fri night).

Wed
21
Thursday
22
Friday
23
8 PM
11 PM
2 AM
5 AM
8 AM
11 AM
2 PM
5 PM
8 PM
11 PM
2 AM
5 AM
8 AM
11 AM
2 PM
5 PM
8 PM
11 PM
Rating
(10 max)
0
0
0
0
0
0
0
0
0
0
0
0
0
0
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)
1.9
ENE
7
1.9
ENE
7
1.6
ENE
7
1.6
ENE
8
1.6
ENE
8
1.8
ENE
7
2.5
ENE
7
2.3
ENE
8
1.9
ENE
8
1.7
ENE
7
1.7
ENE
7
1.5
ENE
7
1.6
ENE
7
1.6
ENE
6
1.8
ENE
7
2.3
ENE
7
2.3
NE
7
2
ENE
7
Wave Graph
Metric surfscale
Energy kJ
379
359
280
288
283
330
632
590
389
319
271
223
216
203
299
584
569
440
Wind (km/h)
25
NE
25
NE
25
NE
20
ENE
25
ENE
30
ENE
35
ENE
30
NE
25
NE
25
NE
25
NE
20
NE
25
NE
25
NE
30
NE
30
NE
35
NE
20
NE
Wind State
cross-on
cross-on
cross-on
cross-on
cross
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
High Tide
5:18PM1.28m
6:17AM1.19m
6:06PM1.31m
6:53AM1.32m
6:52PM1.34m
Low Tide
11:56PM0.28m
12:05PM0.47m
00:32AM0.22m
12:53PM0.37m
rain showers
rain showers
rain showers
part cloud
rain showers
light rain
light rain
light rain
rain showers
part cloud
rain showers
rain showers
rain showers
rain showers
rain showers
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
—
—
—
6:05
—
—
—
—
—
—
—
6:03
—
—
—
—
—
—
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
—
—
—
—
—
—
—
7:10
—
—
—
—
—
—
—
7:12
—
—
 mm
2
4
1
—
2
2
3
1
1
—
1
1
1
1
1
—
—
—
Temp °C
20
18
19
18
19
18
18
18
19
19
18
18
19
19
19
19
19
19
Feels °C
17
15
17
16
17
15
13
14
16
16
15
16
17
16
15
15
15
18
  • 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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