Backdoor 4 surfForecast / NSW – Newcastle / Australia

information circle48hr Weather and Surf, issued 3 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 10PM is: 2.4m 8s primary swell from a South-southeast direction and 1.0m 10s secondary swell from a East direction, 0.1m 16s secondary swell from a South direction (forecast issued at 03:00pm May 21). The wind direction is predicted to be offshore and the swell rating is 11.

Time (AEST) & DateWave HeightWave Period
Morning (21 May)--
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 11mm), heaviest on Sat morning. Warm (max 20°C on Sat morning, min 17°C on Thu afternoon). Winds decreasing (fresh winds from the S on Thu afternoon, light winds from the ESE by Sun morning).

Thu
21
Friday
22
Saturday
23
Sun
24
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
7 PM
10 PM
1 AM
4 AM
7 AM
10 AM
Rating
(10 max)
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
Swell
Height Map
Height MapHeight MapHeight Map
Height MapHeight MapHeight Map
Height MapHeight MapHeight Map
Height MapHeight MapHeight Map
Wave
Height (m)
Direction
Period (s)
3
S
9
3
S
8
2.5
S
8
2.4
SSE
8
2.3
SSE
8
2.3
SSE
8
2.4
SSE
8
2.3
SSE
8
2.2
SSE
8
2.5
SE
10
3
SE
10
2.5
SE
10
2.5
SE
10
2.5
SE
10
3
ESE
10
3
ESE
11
3
ESE
11
3
ESE
12
3
ESE
12
3
ESE
12
3
E
12
3
E
12
3
E
12
3
E
12
Wave Graph
Metric surfscale
Energy kJ
1373
1288
924
725
671
671
674
645
612
1370
1583
1489
1450
1446
1669
1807
2015
2389
2354
2314
2134
2111
2147
2165
Wind (km/h)
35
SSW
35
S
30
S
30
S
25
S
25
S
25
S
30
S
30
SSE
30
SSE
30
SSE
25
SSE
25
SSE
25
S
25
S
20
SE
20
E
20
ESE
20
E
20
E
15
ESE
15
ESE
15
E
10
ESE
off
off
off
off
off
off
off
off
off
off
cross-off
cross-off
off
off
off
cross-off
cross
cross-off
cross-off
cross-off
cross-off
cross-off
cross
cross-off
High Tide
12:17PM1.06m
00:05AM1.59m
1:24PM1.06m
1:07AM1.47m
2:31PM1.11m
2:12AM1.35m
Low Tide
5:33PM0.45m
7:09AM0.13m
6:42PM0.51m
8:07AM0.18m
7:59PM0.54m
9:01AM0.22m
part cloud
cloud
rain showers
light rain
cloud
cloud
cloud
part cloud
rain showers
light rain
cloud
light rain
part cloud
part cloud
cloud
rain showers
rain showers
light rain
rain showers
cloud
cloud
cloud
part cloud
cloud
<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>
4:59
4:58
4:58
4:57
1
1
1
1
1
2
2
1
1
Temp °C
18
17
18
18
17
17
17
17
18
18
17
18
17
17
18
19
20
20
20
20
19
19
20
19
12
11
12
13
12
12
12
12
13
12
12
13
12
13
14
16
18
18
17
17
16
16
17
18
Swell 1
Height (m)
Direction
Period (s)
1.1
E
10
1.1
E
10
1
E
10
1
E
10
0.9
E
10
0.9
E
10
0.9
E
10
1
E
10
1.2
ESE
10
0.3
S
13
0.3
S
13
0.4
SSW
12
2.5
SE
10
2.5
SE
10
3
ESE
11
3
ESE
11
3
ESE
12
3
ESE
12
3
ESE
12
3
E
12
3
E
12
3
E
12
3
E
12
Energy kJ
245
245
194
190
151
148
143
190
294
31
28
47
1450
1446
1807
2015
2389
2354
2314
2134
2111
2147
2165
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
21
0.1
S
20
0.2
S
19
0.2
S
18
0.2
S
16
0.1
S
15
0.1
S
15
Energy kJ
5
5
5
5
5
17
35
4
8
8
27
24
21
4
4
Swell 3
Height (m)
Direction
Period (s)
0.1
S
22
0.1
S
14
0.1
S
14
Energy kJ
9
4
4
Wind waves
Height (m)
Direction
Period (s)
3
S
9
3
S
8
2.5
S
8
2.4
SSE
8
2.3
SSE
8
2.3
SSE
8
2.4
SSE
8
2.3
SSE
8
2.2
SSE
8
2.5
SE
10
3
SE
10
2.5
SE
10
3
ESE
10
Energy kJ
1373
1288
924
725
671
671
674
645
612
1370
1583
1489
1669
Nearest Offshore or Glassy
Rating
(10 max)
2
2
3
3
1
3
3
1
2
2
3
3
1
3
3
2
2
2
4
4
2
2
2
4
Distance (km)
151
176
135
52
141
129
52
141
141
141
168
168
68
141
141
68
68
68
176
176
68
68
68
36
Best forecast wave conditions in Newcastle
Rating
(10 max)
4
Best forecast wave conditions in Australia
Rating
(10 max)
4
4
4
4
4
4
4
4
4
8
5
5
5
5
5
8
4
4
4
5
5
5
7
5
Header Global
Rating
(10 max)
5
5
5
5
5
5
5
4
5
7
7
7
6
5
7
5
7
7
8
8
7
6
7
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.


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