Backdoor 4 surfForecast / NSW – Newcastle / Australia

information circle12 Day Weather and Surf, issued 10 pm Wednesday 31 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
21.9° C
(Which is 1.1°C colder than average 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 Thursday (Jan 01) at 11PM. The primary swell is predicted to be 1.3m and 12s period with a secondary swell of 1.4m and 7s. The wind is predicted to be cross-offshore as the swell arrives.

The most powerful waves expected at Backdoor 4 in the next 12 days are 1.7m 13s and forecast to arrive on Thursday (Jan 01) 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 6s period and expected on Tuesday (Jan 06) at 8AM.

Wave TypeTime (AEDT) & Date Wave Height & Period
Next good surf (1 star+)11PM (Thu 1st Jan)4.5ft (1.3m) 12s
Best Surf11PM (Thu 1st Jan)4.5ft (1.3m) 12s
Most Powerful11AM (Thu 1st Jan)5.5ft (1.7m) 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 Light rain (total 2mm), mostly falling on Thu morning. Warm (max 21°C on Sat afternoon, min 18°C on Wed night). Winds increasing (light winds from the SSE on Wed night, fresh winds from the S by Thu afternoon).

Days 3-6 Weather Summary Light rain (total 5mm), mostly falling on Sun afternoon. Warm (max 23°C on Mon afternoon, min 19°C on Sat night). Wind will be generally light.

Thursday
01
Friday
02
Saturday
03
Sunday
04
Monday
05
Tuesday
06
Wed
07
NightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPM
Rating
(10 max)
4
3
2
3
2
2
1
0
0
0
0
0
0
0
1
1
0
0
0
0
0
Swell
Height Map
Wave Height (m) & direction (?)
2
ESE
1.7
ESE
1.5
ESE
1.3
ESE
1
ESE
0.9
ESE
0.9
SE
0.9
SSE
0.9
SSE
1.3
ENE
0.7
SE
1.6
ENE
1.4
ENE
1.2
ENE
1.6
ENE
0.9
ENE
0.7
E
0.8
S
1.1
ENE
0.4
E
1.2
ENE
Period(s) (?)131312121111988586676666595
Wave
Graph
(?)Metric surfscale
Energy kJ (?)1276968616491242176144123838759145155139203703346712766
Wind
(km/h)
10
SSW
30
SSE
25
SSE
15
SSE
15
SE
15
SE
15
ENE
20
ENE
25
ENE
20
NNE
10
NNE
25
ENE
15
NNW
10
ENE
5
W
5
E
15
ENE
25
ENE
15
NE
20
ENE
30
NE
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
offoffoffcross-
off
cross-
off
cross-
off
crosscross-
on
cross-
on
cross-
on
cross-
on
cross-
on
cross-
on
cross-
on
crossglasscross-
on
cross-
on
cross-
on
cross-
on
cross-
on
High Tide
/ height (m)
6:56AM
1.70
7:39PM
1.10
7:49AM
1.79
8:37PM
1.12
8:40AM
1.85
9:30PM
1.14
9:29AM
1.86
10:20PM
1.15
10:17AM
1.83
11:08PM
1.16
11:03AM
1.74
11:56PM
1.17
11:48AM
1.62
Low Tide
/ height (m)
12:14AM
0.27
1:47PM
0.12
1:10AM
0.26
2:42PM
0.02
2:03AM
0.25
3:33PM
-0.03
2:55AM
0.24
4:22PM
-0.05
3:45AM
0.25
5:08PM
-0.03
4:34AM
0.29
5:52PM
0.03
5:25AM
0.35
6:34PM
0.10
Thursday
01
Friday
02
Saturday
03
Sunday
04
Monday
05
Tuesday
06
Wed
07
Sunrise-5:47--5:48--5:48--5:48--5:50--5:50--5:50-
Sunset--8:06--8:06--8:06--8:06--8:06--8:06--8:06
part cloud
rain showers
rain showers
cloud
part cloud
clear
part cloud
part cloud
clear
part cloud
light rain
thunderstorm
part cloud
part cloud
rain showers
thunderstorm
clear
clear
clear
clear
clear
Rain (mm)
-11-------12--11-----
Temp. °C201919191919202021202122212123222223222222
Feels °C (?)191814151717191918172222212125242323222220
  • 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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