Backdoor 4 Surf Break

Lat Long: 33.28° S 151.57° E

Backdoor 4 Surf Forecast and Surf Report

Issued: 9 pm 22 Sep 2026 (local time)

Forecast update in  hr  min

Today's Backdoor 4 sea temperature is
19.2°C
0.6° 

Backdoor 4 surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.


Backdoor 4 surf forecast from 22 Sep 2026:

  • Best quality surf: Sunday 27 Sep, 7PM (local time) - 10ft (3.0m), 8s period, SSE swell with cross-offshore winds.
  • Most powerful swell: Sunday 27 Sep, 7PM (local time) - 10ft (3.0m), 8s period, SSE swell with 1,385 kJ wave energy.
  • Next surfable swell (1★+): Sunday 27 Sep, 7PM (local time) - 10ft (3.0m), 8s period with SSE swell.

Best Forecast Surf Conditions for Backdoor 4 this week:

The surf forecast for Backdoor 4 over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Sunday (Sep 27) at 7PM. The primary swell is predicted to be 3.0m and 8s period with a secondary swell of 0.4m and 7s. Another secondary swell of 0.1m and 18s is also forecast. The wind is predicted to be cross-offshore as the swell arrives.

The most powerful waves expected at Backdoor 4 in the next 16 days are 3.0m 8s and forecast to arrive on Sunday (Sep 27) at 7PM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.7m 6s period and expected on Sunday (Sep 27) at 1AM.

Wave TypeTime (AEST) & Date Wave Height & Period
Next good surf (1 star+) 7PM (Sun 27th Sep)10ft (3.0m) 8s
Best Surf 7PM (Sun 27th Sep)10ft (3.0m) 8s
Most Powerful 7PM (Sun 27th Sep)10ft (3.0m) 8s

Table - best surf conditions forecast for Backdoor 4 over the next 16 days.


Short Range Forecast

Light rain (total 8mm), mostly falling on Tue night. Warm (max 23°C on Fri morning, min 15°C on Thu night). Winds increasing (light winds from the NNE on Tue night, fresh winds from the NE by Thu afternoon).

Days 5-7 Weather Summary

Heavy rain (total 27mm), heaviest during Sun night. Warm (max 28°C on Sat morning, min 13°C on Sun night). Winds increasing (light winds from the N on Fri night, strong winds from the SSW by Sat night).

Wednesday
23
Thursday
24
Friday
25
Saturday
26
Sunday
27
Monday
28
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
0
0
0
0
0
0
0
0
0
1
0
0
0
1
0
!
!
3
1
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
0.7
S
19
1.8
ENE
6
2.3
ENE
7
1.9
ENE
7
1.4
ENE
6
2.1
ENE
6
1.7
ENE
6
1.1
ENE
6
2.1
ENE
6
1.8
NE
7
1
ENE
7
1.6
NE
7
1.2
ENE
8
1.6
SSE
7
1.9
S
8
2.5
SSE
8
2.3
SE
8
1.6
ESE
7
1.2
S
10
Wave Graph
Metric surfscale
Energy kJ
347
244
476
311
146
359
222
97
346
309
108
240
162
247
419
778
585
239
277
Wind (km/h)
15
NE
25
NE
35
NE
30
NE
20
NE
40
NE
20
NNE
20
NE
35
NE
10
N
10
NE
30
NE
35
SSW
30
SSW
35
SSE
15
ESE
25
SE
20
SSE
15
ESE
Wind State
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
on
cross-on
cross-on
on
cross-on
cross-on
off
off
cross-off
cross-off
cross-off
off
cross-off
High Tide
5:57AM1.10m
5:51PM1.42m
6:33AM1.20m
6:30PM1.46m
7:06AM1.31m
7:08PM1.49m
7:40AM1.41m
7:47PM1.48m
8:15AM1.50m
8:27PM1.44m
8:51AM1.56m
9:09PM1.37m
Low Tide
11:53PM0.30m
11:33AM0.45m
00:26AM0.22m
12:17PM0.37m
00:58AM0.16m
12:59PM0.29m
1:29AM0.12m
1:41PM0.22m
2:01AM0.10m
2:23PM0.17m
2:34AM0.11m
3:08PM0.14m
3:09AM0.15m
rain showers
rain showers
part cloud
part cloud
clear
clear
part cloud
clear
part cloud
clear
clear
part cloud
part cloud
light rain
light rain
heavy rain
mod rain
light rain
light rain
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
5:43
5:41
5:39
5:39
5:37
5:35
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
5:50
5:50
5:51
5:52
5:52
5:52
 mm
7
1
1
2
11
8
5
4
Temp °C
17
19
18
18
18
18
16
23
22
23
28
27
17
16
14
14
13
14
15
Feels °C
16
15
13
14
15
12
12
18
18
20
23
24
11
11
7
11
8
10
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
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Information about the Backdoor 4 Surf forecast

The above surf forecast table for Backdoor 4 provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Backdoor 4 can be found by selecting the local surf guide option on the grey menu. Our Backdoor 4 surf forecast is unique since it includes wave energy (power) that defines the real feel of the surf rather than just the height or the period. If you surf the same spot (Backdoor 4) regularly then make a mental note of the wave energy from the surf forecast table each time you go. Very soon you may start to choose your surf days based on the wave energy alone combined with our forecast of favourable offshore wind conditions. Our star ratings will help here and of course you will also find the usual wave height and period predictions on our surf forecasts as well as a full break down of the swell components under our advanced users option (to reveal that, click the little Einstein character under the tide times).

Further information to help with frequently asked questions about our surf forecast for Backdoor 4 may be found under the help tab on the top menu and also by moving your mouse over the question marks on the surf forecast table itself. Please always bear in mind that the forecast is for near-shore open water and local factors at each surf break influence the actual breaking wave height, such as the beach / reef profile, water depths offshore and shelter.

Backdoor 4 is 14 km (9 miles) from the city of Catherine Hill Bay. If you plan a holiday in Newcastle, look for hotels and other accommodation in Catherine Hill Bay. Catherine Hill Bay has rooms for a wide range of budgets as well as car hire and transport links.

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