Backdoor 4 surfForecast / NSW – Newcastle / Australia

information circle16 Day Weather and Surf, issued 3 am Thursday 23 Apr 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
22.0° 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 Thursday (Apr 23) at 1PM. The primary swell is predicted to be 1.6m and 11s period with a secondary swell of 1.6m and 11s. 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 1.6m 11s and forecast to arrive on Thursday (Apr 23) at 1PM. Winds are predicted to be offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.5m 6s period and expected on Wednesday (Apr 29) at 10PM.

Wave TypeTime (AEST) & Date Wave Height & Period
Next good surf (1 star+) 1PM (Thu 23rd Apr)5ft (1.6m) 11s
Best Surf 1PM (Thu 23rd Apr)5ft (1.6m) 11s
Most Powerful 1PM (Thu 23rd Apr)5ft (1.6m) 11s

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


Updates in  hr  min  s Forecast update imminent

Short Range Forecast

Mostly dry. Warm (max 20°C on Thu night, min 16°C on Sat night). Wind will be generally light.

Days 4-6 Weather Summary

Mostly dry. Warm (max 20°C on Sun morning, min 15°C on Mon night). Wind will be generally light.

Thursday
23
Friday
24
Saturday
25
Sunday
26
Monday
27
Tuesday
28
Wednesday
29
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
!
4
3
2
2
2
2
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Swell
Height Map
<span class="translation_missing" title="translation missing: en.components.forecast-table.maps.snow_map">Snow Map</span>
<span class="translation_missing" title="translation missing: en.components.forecast-table.maps.snow_map">Snow Map</span>
<span class="translation_missing" title="translation missing: en.components.forecast-table.maps.snow_map">Snow Map</span>
<span class="translation_missing" title="translation missing: en.components.forecast-table.maps.snow_map">Snow Map</span>
<span class="translation_missing" title="translation missing: en.components.forecast-table.maps.snow_map">Snow Map</span>
<span class="translation_missing" title="translation missing: en.components.forecast-table.maps.snow_map">Snow Map</span>
<span class="translation_missing" title="translation missing: en.components.forecast-table.maps.snow_map">Snow Map</span>
Wave
Height (m)
Direction
Period (s)
2.1
SE
11
1.5
SSE
11
1.4
ESE
10
1.4
ESE
11
1.4
ESE
10
1.3
ESE
9
1.2
E
8
1.2
E
8
0.6
ESE
8
0.8
E
7
0.9
ENE
7
0.8
ENE
5
0.5
ENE
6
0.5
ENE
7
0.5
E
8
0.6
E
8
0.4
ESE
7
1.1
NE
6
0.7
ENE
6
0.5
ENE
6
0.6
S
6
Wave Graph
Metric surfscale
Energy kJ
972
560
404
452
396
266
205
187
51
61
77
28
23
26
37
43
18
79
29
19
30
Wind (km/h)
20
SSE
20
SSE
10
SE
15
SE
15
ESE
5
NW
0
NE
20
ENE
15
N
15
NNE
20
NE
5
NNW
5
ENE
15
ENE
10
NNW
10
NNE
20
NE
10
WNW
0
NE
15
ESE
5
NW
off
off
cross-off
cross-off
cross-off
glassy
glassy
cross-on
on
on
cross-on
cross-on
glassy
cross-on
on
on
cross-on
cross-on
glassy
cross-off
glassy
High Tide
1:39PM0.99m
1:29AM1.47m
2:58PM1.02m
2:43AM1.41m
4:06PM1.09m
3:51AM1.37m
5:00PM1.19m
4:51AM1.33m
5:44PM1.30m
5:42AM1.30m
6:22PM1.39m
6:27AM1.27m
6:56PM1.47m
Low Tide
6:51PM0.52m
8:40AM0.23m
8:15PM0.55m
9:44AM0.23m
9:36PM0.53m
10:38AM0.22m
10:46PM0.47m
11:21AM0.22m
11:43PM0.40m
11:59AM0.22m
00:32AM0.33m
12:32PM0.23m
1:16AM0.27m
part cloud
part cloud
cloud
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:20
6:20
6:22
6:22
6:22
6:24
6:24
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
5:22
5:21
5:20
5:19
5:17
5:16
5:15
Temp °C
19
19
20
20
20
20
20
20
19
20
20
19
18
19
19
19
20
19
19
20
21
16
16
18
17
18
20
19
18
17
17
17
16
16
17
18
16
17
17
19
19
23
Swell 1
Height (m)
Direction
Period (s)
2.1
SE
11
1.5
SSE
11
1.4
ESE
10
1.4
ESE
11
1.4
ESE
10
1.3
ESE
9
1.2
E
8
0.4
SSE
8
0.6
ESE
8
0.8
E
7
0.2
SSE
7
0.4
ENE
6
0.5
ENE
6
0.3
ESE
6
0.5
E
8
0.6
E
8
0.4
ESE
7
0.9
ENE
6
0.7
ENE
6
0.5
ENE
6
0.6
S
6
Energy kJ
972
499
404
452
396
266
205
26
51
61
5
14
23
8
37
43
18
55
29
19
30
Swell 2
Height (m)
Direction
Period (s)
1.2
ESE
12
1.5
ESE
11
1.3
SSE
10
1
SSE
10
0.8
SSE
9
0.7
SSE
9
0.5
SSE
8
0.4
SSE
8
0.5
E
7
0.4
SE
8
0.2
ESE
8
0.2
ESE
6
0.3
ESE
6
0.2
E
10
0.4
NE
7
0.2
ENE
8
0.2
S
10
0.3
ESE
7
0.2
S
9
0.2
E
7
0.4
ENE
7
Energy kJ
379
560
320
196
96
70
38
26
26
15
6
4
8
8
12
6
8
9
6
4
21
Swell 3
Height (m)
Direction
Period (s)
0.1
N
11
0.1
NE
11
0.1
N
11
0.1
N
10
0.1
N
11
0.1
N
10
0.1
N
10
0.4
SE
8
0.4
SE
8
0.1
S
16
0.2
E
7
0.1
NE
9
0.1
S
14
0.1
NE
8
0.1
S
10
0.1
S
14
0.2
S
10
0.2
E
7
0.2
S
8
0.2
S
17
Energy kJ
2
5
2
2
2
2
2
15
14
5
4
3
4
3
2
4
7
3
5
23
Wind waves
Height (m)
Direction
Period (s)
0.2
WSW
2
1.2
E
8
0.7
NE
4
0.9
ENE
7
0.8
ENE
5
0.5
ENE
7
0.6
NE
4
0.5
NE
5
0.7
NE
4
1.1
NE
6
Energy kJ
1
187
19
77
28
26
13
10
12
79
Nearest Offshore or Glassy
Rating
(10 max)
4
4
3
3
2
2
2
1
1
1
1
1
1
1
1
1
1
1
1
1
1
Distance (km)
45
0
0
1
0
0
0
91
3
2
378
2
151
117
2
2
338
0
52
135
2
Best forecast wave conditions in Newcastle
Rating
(10 max)
4
3
3
2
2
2
1
1
1
1
1
1
1
Best forecast wave conditions in Australia
Rating
(10 max)
4
5
4
3
3
4
4
4
4
4
2
7
9
5
5
4
4
5
6
4
4
Header Global
Rating
(10 max)
9
5
5
4
5
5
4
5
4
4
6
7
9
5
5
6
6
8
8
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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