Surf Break

Lat Long: 33.28° S 151.57° E

Backdoor 4 Surf Forecast and Surf Report

Issued: 10 pm 05 Oct 2026 (local time)

Forecast update in  hr  min

Today's Backdoor 4 sea temperature is
18.8°C
0.1° 

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 5 Oct 2026:

  • Best quality surf: Wednesday 7 Oct, 5AM (local time) - 10ft (3.0m), 8s period, S swell with offshore winds.
  • Most powerful swell: Wednesday 7 Oct, 11AM (local time) - 11ft (3.5m), 10s period, S swell with 2,600 kJ wave energy.
  • Next surfable swell (1★+): Tuesday 6 Oct, 8AM (local time) - 3.5ft (1.1m), 9s period with ENE 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 Tuesday (Oct 06) at 8AM. The primary swell is predicted to be 1.1m and 9s period. 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 3.5m 10s and forecast to arrive on Wednesday (Oct 07) at 11AM. Winds are predicted to be offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.2m 9s period and expected on Thursday (Oct 08) at 11PM.

Wave TypeTime (AEDT) & Date Wave Height & Period
Next good surf (1 star+) 8AM (Tue 6th Oct)3.5ft (1.1m) 9s
Best Surf 5AM (Wed 7th Oct)10ft (3.0m) 8s
Most Powerful11AM (Wed 7th Oct)11ft (3.5m) 10s

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


Short Range Forecast

Light rain (total 4mm), mostly falling on Mon night. Warm (max 21°C on Tue morning, min 14°C on Wed night). Winds increasing (calm on Tue morning, strong winds from the S by Tue night).

Days 5-7 Weather Summary

Some drizzle, heaviest during Sat night. Warm (max 24°C on Sun afternoon, min 12°C on Thu night). Wind will be generally light.

Tuesday
6
Wednesday
7
Thursday
8
Friday
9
Saturday
10
Sunday
11
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
1
1
0
0
!
!
!
!
3
!
!
!
0
0
0
0
0
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)
1.2
ENE
9
1.1
ENE
9
1
ENE
9
2
S
6
3.5
S
10
3
S
10
2.3
S
8
2.3
S
9
1.9
SSE
9
2.5
SSE
12
2.2
SSE
11
2.1
SSE
10
1.6
SSE
9
1.2
SSE
9
0.9
SSE
8
1.2
NE
8
0.7
NE
8
0.4
SE
10
0.6
NE
9
Wave Graph
Metric surfscale
Energy kJ
253
188
154
293
2600
1660
703
842
572
1686
1122
873
422
202
114
182
60
35
68
Wind (km/h)
5
NNW
5
E
15
ENE
40
S
35
SSW
35
SSW
30
S
20
SSW
25
S
15
SW
10
SSE
15
ESE
20
NE
10
NE
25
ENE
15
NW
15
W
0
SE
10
WNW
Wind State
cross-on
glassy
cross
off
off
off
off
off
off
cross-off
cross-off
cross-off
cross-on
cross-on
cross-on
cross-on
cross
glassy
cross
High Tide
5:51AM1.11m
5:44PM1.47m
6:41AM1.22m
6:39PM1.49m
7:23AM1.34m
7:27PM1.48m
8:01AM1.44m
8:10PM1.44m
8:37AM1.52m
8:52PM1.38m
9:11AM1.56m
9:31PM1.30m
Low Tide
11:37PM0.21m
11:23AM0.45m
00:28AM0.16m
12:26PM0.37m
1:10AM0.12m
1:19PM0.28m
1:47AM0.11m
2:06PM0.21m
2:21AM0.13m
2:50PM0.17m
2:53AM0.16m
3:32PM0.15m
3:24AM0.22m
light rain
clear
clear
rain showers
cloud
part cloud
rain showers
rain showers
clear
clear
clear
clear
part cloud
cloud
part cloud
rain showers
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
—
6:24
—
—
6:24
—
—
6:22
—
—
6:20
—
—
6:20
—
—
6:18
—
—
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
—
—
6:59
—
—
6:59
—
—
7:00
—
—
7:00
—
—
7:01
—
—
7:01
—
 mm
1
—
—
1
—
—
1
1
—
—
—
—
—
—
—
1
—
—
—
Temp °C
18
21
20
20
15
15
15
15
16
15
15
16
17
17
21
22
23
24
22
Feels °C
18
21
18
20
7
8
9
10
11
11
13
13
15
15
20
18
20
22
21
  • 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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