Backdoor 4 surfForecast / NSW – Newcastle / Australia

information circle16 Day Weather and Surf, issued 9 pm Friday 15 May 2026 AEST
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
21.2° 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 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Saturday (May 16) at 4AM. The primary swell is predicted to be 1.4m and 7s period with a secondary swell of 0.5m and 9s. 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 3.0m 12s and forecast to arrive on Thursday (May 21) at 10AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.0m 5s period and expected on Tuesday (May 19) at 10PM.

Wave TypeTime (AEST) & Date Wave Height & Period
Next good surf (1 star+) 4AM (Sat 16th May)4.5ft (1.4m) 7s
Best Surf 7PM (Sat 16th May)7ft (2.1m) 8s
Most Powerful10AM (Thu 21st May)10ft (3.0m) 12s

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


Updates in  hr  min  s Forecast update imminent

Short Range Forecast

Light rain (total 2mm), mostly falling on Fri night. Warm (max 21°C on Sun afternoon, min 16°C on Fri night). Wind will be generally light.

Days 5-7 Weather Summary

Heavy rain (total 43mm), heaviest during Tue afternoon. Very mild (max 19°C on Tue afternoon, min 12°C on Wed night). Mainly strong winds.

Saturday
16
Sunday
17
Monday
18
Tuesday
19
Wednesday
20
Thursday
21
Fri
22
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Rating
(10 max)
1
2
1
2
!
1
!
2
1
0
0
!
!
!
!
!
!
!
!
!
!
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
1.3
ESE
7
1.6
E
8
1.5
E
8
2
E
8
2.1
E
9
2
E
9
2.1
E
9
1.8
E
9
1.8
ENE
9
2.1
ENE
9
2.5
ENE
8
2.5
ENE
10
2.2
ENE
10
3
S
10
3.5
S
10
3.5
S
10
3
S
12
3
S
12
3
S
11
2.5
S
10
2.4
S
9
Wave Graph
Metric surfscale
Energy kJ
155
308
309
553
676
627
710
517
505
675
1055
1271
954
1847
2186
2344
2768
2441
2157
1437
1026
Wind (km/h)
5
WSW
5
SW
5
E
5
NNW
5
N
10
ENE
10
N
10
NNW
10
NNE
25
NNE
25
N
5
NW
35
SW
30
SSW
30
SSW
25
SW
25
SW
25
SSW
20
WSW
30
SW
30
SSW
cross-off
cross-off
cross
cross-on
on
cross-on
on
on
on
cross-on
on
cross-on
cross-off
off
off
cross-off
cross-off
off
cross-off
cross-off
off
High Tide
7:27AM1.27m
7:43PM1.78m
8:21AM1.24m
8:30PM1.83m
9:16AM1.19m
9:19PM1.82m
10:13AM1.13m
10:11PM1.78m
11:13AM1.08m
11:06PM1.70m
12:17PM1.06m
00:05AM1.59m
1:24PM1.06m
Low Tide
1:31AM0.08m
1:14PM0.15m
2:23AM0.00m
1:59PM0.19m
3:17AM-0.04m
2:47PM0.24m
4:12AM-0.03m
3:37PM0.30m
5:09AM0.01m
4:32PM0.37m
6:09AM0.07m
5:33PM0.45m
7:09AM0.13m
6:42PM0.51m
rain showers
part cloud
cloud
rain showers
part cloud
part cloud
part cloud
cloud
cloud
heavy rain
mod rain
rain showers
heavy rain
part cloud
cloud
clear
clear
clear
part cloud
part cloud
rain showers
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:37
6:37
6:39
6:39
6:39
6:41
6:41
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
5:01
5:00
5:00
5:00
4:59
4:59
4:58
1
1
11
8
8
16
1
Temp °C
19
18
19
19
18
21
19
19
18
18
18
19
15
17
17
17
16
17
17
16
18
20
19
19
19
17
20
18
18
17
15
16
20
8
12
11
12
11
12
12
10
13
Swell 1
Height (m)
Direction
Period (s)
1.3
ESE
7
1.6
E
8
1.5
E
8
2
E
8
2.1
E
9
2
E
9
2.1
E
9
1.8
E
9
1.8
ENE
9
0.1
S
15
2.5
ENE
10
2.2
ENE
10
1.7
ENE
10
1.6
ENE
10
1.3
ENE
10
3
S
12
3
S
12
2.5
S
11
2.4
S
10
0.9
ENE
10
Energy kJ
155
308
309
553
676
627
710
517
505
4
1271
954
622
501
363
2768
2441
1768
1124
150
Swell 2
Height (m)
Direction
Period (s)
0.5
E
9
0.3
S
8
0.1
S
13
1.4
E
10
1.3
E
10
1.1
E
10
1
E
10
Energy kJ
38
13
3
432
353
240
192
Swell 3
Height (m)
Direction
Period (s)
0.1
S
15
0.1
SE
13
0.1
S
16
Energy kJ
4
7
5
Wind waves
Height (m)
Direction
Period (s)
2.1
ENE
9
2.5
ENE
8
2.2
S
7
3
S
10
3.5
S
10
3.5
S
10
3
S
11
2.5
S
10
2.4
S
9
Energy kJ
675
1055
522
1847
2186
2344
2157
1437
1026
Nearest Offshore or Glassy
Rating
(10 max)
1
2
2
3
3
3
3
3
3
3
4
4
4
2
2
2
4
2
5
1
4
Distance (km)
0
0
72
2
2
46
2
2
2
37
37
2
123
45
141
0
0
0
0
45
52
Best forecast wave conditions in Newcastle
Rating
(10 max)
2
2
2
3
3
4
3
3
3
4
4
2
4
5
4
5
Best forecast wave conditions in Australia
Rating
(10 max)
4
3
4
5
4
3
4
4
3
4
4
4
4
6
4
6
5
4
7
5
4
Header Global
Rating
(10 max)
6
5
4
6
4
5
7
4
6
4
4
4
4
4
4
6
5
4
7
5
5
  • 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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