Backdoor 4 surfForecast / NSW – Newcastle / Australia

information circle16 Day Weather and Surf, issued 9 pm Tuesday 19 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
21.0° 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 Wednesday (May 20) at 7AM. The primary swell is predicted to be 2.3m and 9s period with a secondary swell of 2.0m and 9s. Another secondary swell of 1.6m and 10s is also forecast. 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 2.5m 12s and forecast to arrive on Sunday (May 24) at 4PM. Winds are predicted to be glassy at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.5m 6s period and expected on Monday (May 25) at 4AM.

Wave TypeTime (AEST) & Date Wave Height & Period
Next good surf (1 star+) 7AM (Wed 20th May)7.5ft (2.3m) 9s
Best Surf 7AM (Wed 20th May)7.5ft (2.3m) 9s
Most Powerful 4PM (Sun 24th May)8ft (2.5m) 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

Moderate rain (total 14mm), heaviest on Thu morning. Very mild (max 18°C on Thu night, min 14°C on Tue night). Mainly fresh winds.

Days 5-7 Weather Summary

Heavy rain (total 20mm), heaviest during Sat morning. Very mild (max 19°C on Sat morning, min 16°C on Sun night). Winds increasing (calm on Sun afternoon, strong winds from the SSE by Mon afternoon).

Wednesday
20
Thursday
21
Friday
22
Saturday
23
Sunday
24
Monday
25
Tue
26
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Rating
(10 max)
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
!
3
2
2
1
1
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)
2.4
S
8
3
S
10
2.5
S
10
3
S
10
2.5
S
9
3
S
8
2.2
SSE
8
2.1
SSE
8
2.3
SE
10
2.1
ESE
10
2.5
ESE
10
2.3
E
11
2.5
E
12
2.4
E
11
2.5
E
12
2.2
E
12
1.9
E
11
1.8
E
12
1.7
E
11
1.7
E
11
1.6
E
11
Wave Graph
Metric surfscale
Energy kJ
800
1448
1292
1478
985
1071
554
514
964
884
1406
1257
1702
1478
1738
1277
872
855
701
713
655
Wind (km/h)
15
WSW
20
SW
30
SSW
20
SW
25
SSW
30
S
25
S
25
S
30
SSE
25
S
10
ESE
5
S
0
E
10
SSW
5
SSE
10
WSW
35
SSE
40
SSE
35
SSE
30
SE
30
SE
cross-off
cross-off
off
cross-off
cross-off
off
off
off
off
off
cross-off
glassy
glassy
cross-off
glassy
cross-off
off
off
cross-off
cross-off
cross-off
High Tide
10:11PM1.78m
11:13AM1.08m
11:06PM1.70m
12:17PM1.06m
00:05AM1.59m
1:24PM1.06m
1:07AM1.47m
2:31PM1.11m
2:12AM1.35m
3:32PM1.18m
3:15AM1.25m
4:23PM1.27m
4:15AM1.18m
5:08PM1.36m
Low Tide
5:09AM0.01m
4:32PM0.37m
6:09AM0.07m
5:33PM0.45m
7:09AM0.13m
6:42PM0.51m
8:07AM0.18m
7:59PM0.54m
9:01AM0.22m
9:17PM0.53m
9:49AM0.25m
10:27PM0.49m
10:32AM0.28m
rain showers
part cloud
part cloud
light rain
light rain
rain showers
light rain
part cloud
cloud
light rain
rain showers
rain showers
rain showers
part cloud
part cloud
rain showers
mod rain
light rain
rain showers
rain showers
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:39
6:41
6:41
6:41
6:43
6:43
6:43
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
4:59
4:59
4:58
4:58
4:57
4:57
4:55
2
1
3
4
4
2
4
1
1
3
6
3
4
2
Temp °C
16
17
17
15
17
17
18
18
17
18
19
18
19
18
18
18
17
18
18
17
17
13
13
12
11
12
12
13
12
12
14
19
19
19
18
18
19
12
10
12
11
11
Swell 1
Height (m)
Direction
Period (s)
2
S
8
2.4
S
10
1.4
ENE
10
2.4
S
10
1.2
E
10
1.1
E
10
1
E
10
0.9
E
9
0.4
S
13
2.1
ESE
10
2.5
ESE
10
2.3
E
11
2.5
E
12
2.4
E
11
2.5
E
12
2.2
E
12
1.9
E
11
1.8
E
12
1.7
E
11
1.7
E
11
1.6
E
11
Energy kJ
540
1070
418
1137
290
245
186
140
56
884
1406
1257
1702
1478
1738
1277
872
855
701
713
655
Swell 2
Height (m)
Direction
Period (s)
1.8
ENE
10
1.6
ENE
10
1.2
E
10
0.1
S
16
0.2
S
15
0.3
ENE
10
0.4
SSW
10
1.2
SSE
9
0.1
S
19
0.1
S
15
0.1
S
14
0.1
S
18
0.2
S
16
0.5
S
14
0.5
S
13
0.5
S
12
Energy kJ
721
566
296
5
17
19
35
227
7
4
4
6
20
103
82
72
Swell 3
Height (m)
Direction
Period (s)
0.2
S
15
0.1
S
22
0.1
S
19
Energy kJ
17
9
7
Wind waves
Height (m)
Direction
Period (s)
2.4
S
8
3
S
10
2.5
S
10
3
S
10
2.5
S
9
3
S
8
2.2
SSE
8
2.1
SSE
8
2.3
SE
10
1
S
7
0.4
SSW
9
1.1
S
5
2.5
S
8
2.4
SSE
8
1.7
S
7
1.3
S
7
1.5
SSE
7
Energy kJ
800
1448
1292
1478
985
1071
554
514
964
96
28
52
736
644
303
152
204
Nearest Offshore or Glassy
Rating
(10 max)
4
4
4
4
3
1
3
2
2
3
3
4
4
4
4
3
4
3
2
3
1
Distance (km)
0
0
52
0
0
45
52
129
141
52
37
0
0
0
0
0
36
435
248
176
68
Best forecast wave conditions in Newcastle
Rating
(10 max)
4
5
4
4
1
3
4
4
4
4
4
4
Best forecast wave conditions in Australia
Rating
(10 max)
4
5
4
4
4
4
4
4
3
7
4
4
4
4
4
4
4
3
3
4
4
Header Global
Rating
(10 max)
4
5
5
4
4
4
4
5
5
7
5
5
9
6
5
5
4
4
4
4
4
  • 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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