Backdoor 4 surfForecast / NSW – Newcastle / Australia

information circle12 Day Weather and Surf, issued 4 pm Saturday 27 Dec 2025 AEDT
Forecast update in hr  min  s Forecast update imminent
Backdoor 4 surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Backdoor 4 sea temperature is
22.8° C
(Which is normal for this time of year)


Best Forecast Surf Conditions for Backdoor 4 this week:

The surf forecast for Backdoor 4 over the next 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Saturday (Dec 27) at 8PM. The primary swell is predicted to be 1.9m and 10s period with a secondary swell of 0.1m and 9s. The wind is predicted to be offshore as the swell arrives.

The most powerful waves expected at Backdoor 4 in the next 12 days are 2.5m 13s and forecast to arrive on Thursday (Jan 01) at 2AM. Winds are predicted to be offshore at the time the swell arrives.

Wave TypeTime (AEDT) & Date Wave Height & Period
Next good surf (1 star+) 8PM (Sat 27th Dec)6ft (1.9m) 10s
Best Surf 2AM (Sun 28th Dec)7ft (2.2m) 10s
Most Powerful 2AM (Thu 1st Jan)8ft (2.5m) 13s

Table - best surf conditions forecast for Backdoor 4 over the next 12 days.

Updates in  hr  min  s Forecast update imminent

Short Range Forecast Mostly dry. Very mild (max 19°C on Sun morning, min 15°C on Mon night). Winds decreasing (fresh winds from the S on Sun morning, calm by Mon night).

Days 3-6 Weather Summary Light rain (total 2mm), mostly falling on Wed night. Warm (max 21°C on Wed morning, min 18°C on Wed night). Winds increasing (light winds from the ESE on Tue night, fresh winds from the S by Thu morning).

Sat
27
Sunday
28
Monday
29
Tuesday
30
Wednesday
31
Thursday
01
Friday
02
PMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAM
Rating
(10 max)
2
!
!
!
3
2
1
2
2
0
1
4
!
!
3
!
!
3
2
3
2
Swell
Height Map
Wave Height (m) & direction (?)
1.8
S
2.2
S
2.5
S
2.3
S
2
SSE
1.7
SSE
1.5
SSE
1.1
SE
1.3
SE
1.2
SE
1.4
ESE
1.7
ESE
2.1
ESE
2.5
SE
1.7
ESE
3
S
2.4
S
1.6
S
1.7
SSE
1.7
SSE
1.3
SSE
Period(s) (?)10101010999888814131313101091099
Wave
Graph
(?)Metric surfscale
Energy kJ (?)593957113797264143634416720619226711911405231097217001161417561495257
Wind
(km/h)
20
SE
25
SSW
30
S
25
SSE
10
S
15
SSE
15
SE
5
SW
10
ESE
20
ENE
5
ENE
15
SE
25
SE
25
S
35
S
35
S
25
S
20
SSE
20
SSE
10
SSE
10
SE
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
cross-
off
offoffoffoffcross-
off
cross-
off
cross-
off
cross-
off
crosscross-
on
cross-
off
cross-
off
offoffoffoffoffcross-
off
offcross-
off
High Tide
/ height (m)
3:11AM
1.26
2:53PM
1.21
4:09AM
1.36
4:06PM
1.13
5:06AM
1.47
5:22PM
1.09
6:02AM
1.59
6:34PM
1.08
6:56AM
1.70
7:39PM
1.10
7:49AM
1.79
8:37PM
1.12
8:40AM
1.85
Low Tide
/ height (m)
8:33PM
0.20
9:06AM
0.53
9:24PM
0.22
10:25AM
0.47
10:19PM
0.25
11:40AM
0.37
11:17PM
0.26
12:47PM
0.24
12:14AM
0.27
1:47PM
0.12
1:10AM
0.26
2:42PM
0.02
2:03AM
0.25
Sat
27
Sunday
28
Monday
29
Tuesday
30
Wednesday
31
Thursday
01
Friday
02
Sunrise--5:43--5:45--5:45--5:46--5:47--5:48--5:48
Sunset8:04--8:05--8:05--8:05--8:05--8:06--8:06--
clear
part cloud
part cloud
part cloud
clear
clear
clear
clear
clear
clear
part cloud
part cloud
part cloud
light rain
part cloud
clear
clear
part cloud
clear
part cloud
part cloud
Rain (mm)
-------------2-------
Temp. °C171819191918191918202021211919202020201919
Feels °C (?)121413141516171817171720191614141416161718
  • 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 12 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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