Backdoor 4 surfForecast / NSW – Newcastle / Australia

information circle48hr Weather and Surf, issued 9 pm Wednesday 20 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
20.8° C
(Which is normal for this time of year)

How big are the waves at Backdoor 4 today?

The current surf forecast for Backdoor 4 at 5AM is: 3.0m 10s primary swell from a South direction and 1.1m 10s secondary swell from a East direction (forecast issued at 09:00pm May 20). The wind direction is predicted to be cross-offshore and the swell rating is 11.

Time (AEST) & DateWave HeightWave Period
Morning (21 May)10ft (3.0m)9s
Afternoon (21 May)10ft (3.0m)9s
Evening (21 May)8ft (2.5m)8s

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 18mm), heaviest on Sat morning. Warm (max 20°C on Sat afternoon, min 14°C on Wed night). Winds decreasing (fresh winds from the SSW on Thu morning, light winds from the E by Sat morning).

Wed
20
Thursday
21
Friday
22
Saturday
23
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)
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
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Swell
Height Map
Height MapHeight MapHeight Map
Height MapHeight MapHeight Map
Height MapHeight MapHeight Map
Wave
Height (m)
Direction
Period (s)
2.3
S
10
2.4
S
10
3
S
10
2.5
S
10
3
S
9
3
S
9
3
S
9
3
S
8
2.5
S
8
2.4
SSE
8
2.3
SSE
8
2.2
SSE
8
2.2
SSE
8
2.2
SSE
8
2.2
SSE
8
2.5
SE
8
2.5
SE
11
2.5
SE
11
2.5
SE
11
3
SE
10
2.5
ESE
11
3
ESE
10
2.5
ESE
10
2.5
ESE
11
Wave Graph
Metric surfscale
Energy kJ
958
1065
1553
1238
1610
1677
1404
1197
903
709
636
570
602
589
627
833
1509
1547
1445
1601
1628
1631
1497
1658
Wind (km/h)
20
SSW
20
WSW
20
SW
25
SW
25
SW
30
SSW
35
SSW
35
S
30
S
25
S
25
S
25
S
25
S
30
S
30
S
30
SSE
30
SSE
25
S
25
S
20
SSE
20
SSE
20
SE
15
E
15
E
off
cross-off
cross-off
cross-off
cross-off
cross-off
off
off
off
off
off
off
off
off
off
off
off
off
off
off
off
cross-off
cross
cross
High Tide
11:06PM1.70m
12:17PM1.06m
00:05AM1.59m
1:24PM1.06m
1:07AM1.47m
2:31PM1.11m
Low Tide
4:32PM0.37m
6:09AM0.07m
5:33PM0.45m
7:09AM0.13m
6:42PM0.51m
8:07AM0.18m
clear
clear
clear
cloud
part cloud
part cloud
part cloud
light rain
light rain
light rain
cloud
cloud
cloud
cloud
light rain
rain showers
cloud
cloud
light rain
rain showers
rain showers
rain showers
rain showers
rain showers
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:41
6:41
6:41
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
4:59
4:58
4:58
1
1
1
1
1
1
1
1
3
4
2
Temp °C
17
16
14
14
14
16
16
17
18
17
16
16
16
17
17
18
17
17
17
18
18
19
19
20
12
12
9
9
9
10
10
11
13
12
12
11
11
12
11
12
12
13
13
15
16
17
18
18
Swell 1
Height (m)
Direction
Period (s)
1.3
ENE
10
1.3
E
10
2.4
S
10
1.1
E
10
1.1
E
10
1.1
E
10
1.1
E
10
1.1
E
10
1
E
10
1
E
10
0.9
E
10
0.9
E
10
0.8
E
10
0.9
E
10
1
E
10
0.3
S
13
0.3
S
13
2.5
SE
11
2.5
SE
11
2.5
SE
10
2.5
ESE
11
3
ESE
10
2.5
ESE
10
2.5
ESE
11
Energy kJ
363
353
1115
250
255
250
250
245
194
194
151
148
115
149
200
31
28
1547
1445
1359
1628
1631
1497
1658
Swell 2
Height (m)
Direction
Period (s)
1.2
E
10
0.1
S
16
0.1
S
16
0.1
S
16
0.1
S
15
0.2
S
15
0.3
S
14
0.4
SSW
13
0.1
S
14
0.3
SSW
11
0.5
SE
10
0.1
S
14
0.1
S
21
Energy kJ
296
5
5
5
5
17
35
57
4
24
49
4
9
Swell 3
Height (m)
Direction
Period (s)
0.1
S
14
Energy kJ
4
Wind waves
Height (m)
Direction
Period (s)
2.3
S
10
2.4
S
10
3
S
10
2.5
S
10
3
S
9
3
S
9
3
S
9
3
S
8
2.5
S
8
2.4
SSE
8
2.3
SSE
8
2.2
SSE
8
2.2
SSE
8
2.2
SSE
8
2.2
SSE
8
2.5
SE
8
2.5
SE
11
3
SE
10
Energy kJ
958
1065
1553
1238
1610
1677
1404
1197
903
709
636
570
602
589
627
833
1509
1601
Nearest Offshore or Glassy
Rating
(10 max)
2
4
4
4
2
4
2
1
3
3
3
1
1
2
1
3
3
3
3
3
4
3
4
2
Distance (km)
0
0
0
0
45
135
151
141
135
52
52
0
0
135
141
141
141
168
156
141
45
141
52
68
Best forecast wave conditions in Newcastle
Rating
(10 max)
4
4
4
4
3
3
Best forecast wave conditions in Australia
Rating
(10 max)
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
7
8
5
5
7
5
5
4
4
Header Global
Rating
(10 max)
4
4
4
5
5
5
5
5
5
5
5
5
4
5
5
7
7
7
6
5
5
5
5
6
  • 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.


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