Backdoor 4 surfForecast / NSW – Newcastle / Australia

information circle48hr Weather and Surf, issued 9 pm Thursday 21 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
21.1° C
(Which is slightly warmer than usual)

How big are the waves at Backdoor 4 today?

The current surf forecast for Backdoor 4 at 4AM is: 2.3m 8s primary swell from a South-southeast direction and 0.9m 10s secondary swell from a East direction, 0.1m 16s secondary swell from a South direction (forecast issued at 09:00pm May 21). The wind direction is predicted to be offshore and the swell rating is 11.

Time (AEST) & DateWave HeightWave Period
Morning (22 May)8ft (2.4m)8s
Afternoon (22 May)8ft (2.5m)10s
Evening (22 May)10ft (3.0m)10s

Table - waves today at Backdoor 4. (Swell directed towards the surf break)


Updates in  hr  min  s Forecast update imminent

Short Range Forecast

Moderate rain (total 14mm), heaviest on Sat morning. Warm (max 20°C on Sat morning, min 17°C on Thu night). Mainly fresh winds.

Thu
21
Friday
22
Saturday
23
Sunday
24
7 PM
10 PM
1 AM
4 AM
7 AM
10 AM
1 PM
4 PM
7 PM
10 PM
1 AM
4 AM
7 AM
10 AM
1 PM
4 PM
7 PM
10 PM
1 AM
4 AM
7 AM
10 AM
1 PM
4 PM
Rating
(10 max)
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
Swell
Height Map
Height MapHeight Map
Height MapHeight MapHeight Map
Height MapHeight MapHeight Map
Height MapHeight MapHeight Map
Wave
Height (m)
Direction
Period (s)
2.5
S
8
2.5
SSE
8
2.3
SSE
8
2.3
SSE
8
2.4
SSE
8
2.4
SSE
8
2.1
SSE
8
2.5
SE
10
2.5
SE
10
2.5
SE
10
2.5
SE
10
2.5
ESE
10
3
ESE
11
3
ESE
11
3
ESE
12
3
ESE
12
3
E
12
3
E
12
3
E
12
3
E
12
3
E
12
2.5
E
12
2.5
E
12
2.5
E
12
Wave Graph
Metric surfscale
Energy kJ
924
765
671
654
691
657
563
1343
1506
1460
1510
1446
1843
2202
2433
2389
2599
2568
2364
2184
2184
2015
1981
1839
Wind (km/h)
30
S
30
SSE
30
S
30
S
30
S
30
S
30
S
30
SSE
30
SSE
25
SSE
25
SSE
25
S
25
S
25
SSE
20
E
20
ESE
20
ESE
20
ESE
15
ESE
15
E
10
SE
10
SSE
10
E
10
ENE
off
off
off
off
off
off
off
off
off
cross-off
off
off
off
cross-off
cross
cross-off
cross-off
cross-off
cross-off
cross
cross-off
cross-off
cross
cross-on
High Tide
00:05AM1.59m
1:24PM1.06m
1:07AM1.47m
2:31PM1.11m
2:12AM1.35m
3:32PM1.18m
Low Tide
5:33PM0.45m
7:09AM0.13m
6:42PM0.51m
8:07AM0.18m
7:59PM0.54m
9:01AM0.22m
light rain
light rain
cloud
cloud
cloud
part cloud
light rain
rain showers
light rain
light rain
part cloud
cloud
cloud
light rain
rain showers
rain showers
rain showers
cloud
cloud
cloud
cloud
part cloud
light rain
rain showers
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:41
6:41
6:43
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
4:58
4:58
4:57
1
1
1
1
1
1
1
2
1
1
1
2
Temp °C
18
18
17
17
17
18
18
18
18
17
17
18
18
18
20
20
20
20
20
19
19
19
18
19
13
12
11
11
11
12
13
13
13
12
12
14
14
15
18
17
17
16
17
16
17
18
17
18
Swell 1
Height (m)
Direction
Period (s)
1
E
10
1
E
10
0.9
E
10
0.9
E
10
0.9
E
10
1
E
10
1.4
ESE
10
0.3
S
13
0.3
S
13
0.4
SSW
12
0.3
SSW
11
2.5
ESE
10
3
ESE
11
3
ESE
12
3
ESE
12
3
E
12
3
E
12
3
E
12
3
E
12
3
E
12
2.5
E
12
2.5
E
12
2.5
E
12
Energy kJ
194
190
151
148
143
190
394
31
28
47
24
1244
2202
2433
2389
2599
2568
2364
2184
2184
2015
1981
1839
Swell 2
Height (m)
Direction
Period (s)
0.1
S
16
0.1
S
16
0.1
S
16
0.1
S
16
0.1
S
15
0.2
S
15
0.3
S
14
0.1
S
14
0.1
S
14
0.1
S
21
0.1
S
20
0.2
S
18
0.2
S
18
0.1
S
16
0.2
S
15
0.1
S
15
0.1
S
14
0.1
S
14
Energy kJ
5
5
5
5
5
17
35
4
4
8
8
27
24
5
18
4
4
4
Swell 3
Height (m)
Direction
Period (s)
0.1
S
22
0.1
S
14
Energy kJ
9
4
Wind waves
Height (m)
Direction
Period (s)
2.5
S
8
2.5
SSE
8
2.3
SSE
8
2.3
SSE
8
2.4
SSE
8
2.4
SSE
8
2.1
SSE
8
2.5
SE
10
2.5
SE
10
2.5
SE
10
2.5
SE
10
2.5
SE
10
3
ESE
11
Energy kJ
924
765
671
654
691
657
563
1343
1506
1460
1510
1446
1843
Nearest Offshore or Glassy
Rating
(10 max)
3
3
3
1
2
2
2
3
3
3
3
3
4
2
4
2
4
4
2
2
4
4
4
4
Distance (km)
52
176
168
141
135
135
141
141
168
168
176
141
135
68
52
68
128
181
68
68
1
0
52
37
Best forecast wave conditions in Newcastle
Rating
(10 max)
4
4
4
4
Best forecast wave conditions in Australia
Rating
(10 max)
4
4
4
4
4
4
4
8
5
5
7
6
8
8
4
4
5
5
5
7
4
6
4
4
Header Global
Rating
(10 max)
5
5
5
5
5
5
5
7
7
7
6
6
7
8
6
7
8
8
7
7
6
6
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)
Map placeholder

FREE! Surf-Forecast.com widget for your website

The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Backdoor 4 surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.


Nearest locationNearest
Nearest locationNearest
Nearest locationNearest