Backdoor 4 surfForecast / NSW – Newcastle / Australia

information circle12 Day Weather and Surf, issued 10 am Wednesday 21 Jan 2026 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 slightly cooler than normal)


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 Wednesday (Jan 21) at 8PM. The primary swell is predicted to be 2.1m and 11s period with a secondary swell of 0.1m and 13s. The wind is predicted to be cross-shore as the swell arrives.

The most powerful waves expected at Backdoor 4 in the next 12 days are 2.4m 11s and forecast to arrive on Thursday (Jan 22) at 5PM. Winds are predicted to be offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.4m 6s period and expected on Monday (Jan 26) at 2PM.

Wave TypeTime (AEDT) & Date Wave Height & Period
Next good surf (1 star+) 8PM (Wed 21st Jan)7ft (2.1m) 11s
Best Surf 8PM (Wed 21st Jan)7ft (2.1m) 11s
Most Powerful 5PM (Thu 22nd Jan)8ft (2.4m) 11s

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

Updates in  hr  min  s Forecast update imminent

Short Range Forecast Some drizzle, heaviest during Thu night. Warm (max 23°C on Thu morning, min 19°C on Wed morning). Mainly fresh winds.

Days 3-6 Weather Summary Mostly dry. Warm (max 31°C on Mon morning, min 19°C on Sat morning). Mainly fresh winds.

Wednesday
21
Thursday
22
Friday
23
Saturday
24
Sunday
25
Monday
26
Tuesday
27
AMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNight
Rating
(10 max)
3
2
2
3
!
!
3
3
1
0
0
0
1
0
3
3
2
2
3
0
3
Swell
Height Map
Wave Height (m) & direction (?)
1.9
ESE
1.9
ESE
2
ESE
1.7
ESE
2.4
SE
2.5
SSE
1.8
S
1.7
S
1.6
SSE
1.3
SSE
1.2
SSE
1.2
SSE
1.2
SSE
1.5
SSE
1.7
SSE
1.6
SSE
1.5
SSE
1.3
SSE
1.7
SSE
1.7
SSE
1.3
SSE
Period(s) (?)111111111189109999101114131212121212
Wave
Graph
(?)Metric surfscale
Energy kJ (?)83184690671313407855395134512892382032585601068812626491723864467
Wind
(km/h)
10
S
15
ESE
10
NNE
20
S
35
SSE
20
SSE
15
SE
15
SE
15
NE
20
NE
30
ENE
15
NE
10
ENE
20
NE
5
N
10
SSW
15
SSE
25
SSW
10
SE
20
ENE
5
SE
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
offcross-
off
cross-
on
offoffoffcross-
off
cross-
off
cross-
on
cross-
on
cross-
on
cross-
on
cross-
on
cross-
on
onoffcross-
off
cross-
off
cross-
off
cross-
on
cross-
off
High Tide
/ height (m)
10:34AM
1.63
11:18PM
1.19
11:10AM
1.58
11:59PM
1.23
11:50AM
1.49
12:43AM
1.27
12:34PM
1.38
1:33AM
1.31
1:26PM
1.25
2:28AM
1.35
2:30PM
1.12
3:31AM
1.40
3:50PM
1.02
4:38AM
1.47
Low Tide
/ height (m)
5:16PM
0.09
4:52AM
0.34
5:50PM
0.10
5:38AM
0.38
6:26PM
0.12
6:30AM
0.42
7:05PM
0.17
7:32AM
0.45
7:50PM
0.23
8:45AM
0.46
8:42PM
0.30
10:09AM
0.43
9:45PM
0.35
Wednesday
21
Thursday
22
Friday
23
Saturday
24
Sunday
25
Monday
26
Tuesday
27
Sunrise6:03--6:05--6:05--6:07--6:07--6:09--6:09--
Sunset-8:04--8:02--8:02--8:02--8:01--8:01--8:00-
clear
clear
clear
clear
part cloud
light rain
part cloud
clear
part cloud
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
part cloud
clear
part cloud
Rain (mm)
-----1---------------
Temp. °C212121232220202020212222232423312422232423
Feels °C (?)191920221816171717202121252422322423252423
  • 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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