Backdoor 4 Surf Break

Lat Long: 33.28° S 151.57° E

Backdoor 4 Surf Forecast and Surf Report

Issued: 9 pm 02 Aug 2026 (local time)

Forecast update in  hr  min

Today's Backdoor 4 sea temperature is
17.9° C
0.5° 

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 2 Aug 2026:

  • Best quality surf: Friday 7 Aug, 7AM (local time) - 4.5ft (1.3m), 9s period, S swell with cross-offshore winds.
  • Most powerful swell: Thursday 6 Aug, 7PM (local time) - 5ft (1.5m), 10s period, S swell with 415 kJ wave energy.
  • Next surfable swell (1★+): Wednesday 5 Aug, 7PM (local time) - 2.5ft (0.7m), 7s period with S 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 Wednesday (Aug 05) at 7PM. The primary swell is predicted to be 0.7m and 7s period with a secondary swell of 0.4m and 9s. The wind is predicted to be offshore as the swell arrives.

The most powerful waves expected at Backdoor 4 in the next 16 days are 1.5m 10s and forecast to arrive on Thursday (Aug 06) at 7PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.9m 8s period and expected on Thursday (Aug 06) at 1AM.

Wave TypeTime (AEST) & Date Wave Height & Period
Next good surf (1 star+) 7PM (Wed 5th Aug)2.5ft (0.7m) 7s
Best Surf 7AM (Fri 7th Aug)4.5ft (1.3m) 9s
Most Powerful 7PM (Thu 6th Aug)5ft (1.5m) 10s

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


Short Range Forecast

Mostly dry. Warm (max 22°C on Mon afternoon, min 9°C on Tue night). Wind will be generally light.

Days 5-7 Weather Summary

Mostly dry. Very mild (max 17°C on Sat afternoon, min 9°C on Wed night). Wind will be generally light.

Monday
3
Tuesday
4
Wednesday
5
Thursday
6
Friday
7
Saturday
8
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
1
0
0
0
0
0
0
0
0
0
1
1
1
2
2
0
1
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)
1.4
SE
12
1.2
SE
11
1
SE
11
0.7
SE
10
0.4
SE
10
0.3
ESE
7
0.2
E
11
0.4
E
10
0.7
S
7
0.4
E
8
1.1
S
9
1.4
S
10
1.4
S
9
1.2
S
9
1.1
S
9
1
S
9
0.7
S
8
0.6
S
8
0.7
S
8
Wave Graph
Metric surfscale
Energy kJ
558
338
220
106
25
9
9
31
51
22
180
354
332
234
189
153
64
45
66
Wind (km/h)
10
N
15
N
15
NNW
10
W
15
W
10
SE
20
W
15
W
10
E
15
W
5
NW
10
E
10
NW
5
WSW
10
ESE
10
W
0
WSW
20
ENE
25
N
Wind State
on
on
on
cross
cross
cross-off
cross
cross
cross
cross-off
glassy
cross
cross-on
glassy
cross-off
cross
glassy
cross-on
on
High Tide
10:28PM1.45m
11:16AM1.29m
11:09PM1.35m
12:01PM1.32m
11:57PM1.24m
12:52PM1.35m
00:55AM1.12m
1:51PM1.39m
2:10AM1.03m
2:58PM1.44m
3:35AM0.98m
4:07PM1.52m
Low Tide
4:59AM0.15m
5:08PM0.40m
5:35AM0.19m
6:03PM0.43m
6:16AM0.25m
7:10PM0.45m
7:05AM0.31m
8:28PM0.44m
8:05AM0.36m
9:51PM0.38m
9:15AM0.39m
11:06PM0.28m
part cloud
part cloud
part cloud
clear
clear
clear
clear
clear
part cloud
clear
part cloud
cloud
part cloud
clear
clear
clear
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:43
6:43
6:41
6:41
6:39
6:39
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
5:15
5:15
5:16
5:17
5:17
5:19
 mm
Temp °C
16
21
22
16
17
17
13
16
15
13
12
14
13
13
16
15
14
17
15
Feels °C
13
16
17
12
13
13
7
13
11
8
9
10
10
11
13
13
13
13
10
  • Map Icons:
  • Break
  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
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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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