Backdoor 4 surfForecast / NSW – Newcastle / Australia

information circle16 Day Weather and Surf, issued 9 am Monday 11 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
21.5° 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 Monday (May 11) at 10PM. The primary swell is predicted to be 1.7m and 12s period with a secondary swell of 0.9m and 13s. 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 1.7m 13s and forecast to arrive on Monday (May 11) at 7PM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.3m 3s period and expected on Monday (May 18) at 1PM.

Wave TypeTime (AEST) & Date Wave Height & Period
Next good surf (1 star+)10PM (Mon 11th May)5.5ft (1.7m) 12s
Best Surf10PM (Mon 11th May)5.5ft (1.7m) 12s
Most Powerful 7PM (Mon 11th May)5.5ft (1.7m) 13s

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 11mm), heaviest on Wed night. Warm (max 20°C on Mon morning, min 18°C on Mon morning). Wind will be generally light.

Days 4-6 Weather Summary

Heavy rain (total 26mm), heaviest during Thu afternoon. Very mild (max 19°C on Thu afternoon, min 16°C on Fri night). Wind will be generally light.

Monday
11
Tuesday
12
Wednesday
13
Thursday
14
Friday
15
Saturday
16
Sunday
17
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
3
3
2
2
2
1
0
0
1
1
0
1
2
1
0
1
2
2
2
1
1
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
1.4
SSE
10
1.5
SSE
11
1.6
SSE
12
1.5
SSE
11
1.6
SSE
10
1.6
SE
7
1.6
SE
7
1.6
SE
7
1.4
E
6
1.4
ESE
7
1.7
ESE
7
1.5
ESE
7
1.3
ESE
7
1.2
ESE
7
0.9
E
7
0.6
SE
7
1.6
ESE
9
1.8
E
9
1.7
E
9
1.8
E
9
1.7
E
9
Wave Graph
Metric surfscale
Energy kJ
443
496
648
531
562
226
219
220
156
176
256
217
149
128
74
43
374
528
439
505
461
Wind (km/h)
10
SSW
15
SE
15
SE
25
SE
25
SSE
25
SE
25
SE
25
SE
20
ESE
20
ESE
20
E
5
E
5
SSW
10
SE
5
W
5
SW
10
ESE
10
N
5
N
10
ENE
10
NW
off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross
cross
off
cross-off
cross
glassy
cross-off
on
glassy
cross-on
cross-on
High Tide
4:04PM1.16m
3:43AM1.27m
4:50PM1.29m
4:41AM1.28m
5:33PM1.44m
5:38AM1.29m
6:16PM1.58m
6:33AM1.29m
6:59PM1.69m
7:27AM1.27m
7:43PM1.78m
8:21AM1.24m
8:30PM1.83m
Low Tide
9:46PM0.55m
10:19AM0.22m
10:49PM0.45m
11:03AM0.17m
11:45PM0.33m
11:46AM0.14m
00:39AM0.20m
12:29PM0.14m
1:31AM0.08m
1:14PM0.15m
2:23AM0.00m
1:59PM0.19m
3:17AM-0.04m
part cloud
rain showers
part cloud
rain showers
rain showers
rain showers
rain showers
clear
rain showers
thunderstorm
thunderstorm
rain showers
clear
clear
clear
cloud
rain showers
thunderstorm
cloud
part cloud
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:33
6:33
6:35
6:35
6:35
6:37
6:37
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
5:05
5:05
5:04
5:02
5:01
5:01
5:00
2
1
1
1
2
4
6
9
5
1
5
Temp °C
20
20
20
19
19
19
19
19
19
18
19
19
19
19
19
17
19
19
18
20
19
17
18
18
15
15
15
14
15
15
15
17
17
18
18
20
17
19
18
18
20
19
Swell 1
Height (m)
Direction
Period (s)
1.4
SSE
10
1.5
SSE
11
1.6
SSE
12
0.8
E
12
0.7
E
12
0.8
S
10
0.8
S
10
0.8
S
10
1.1
SSE
7
1.4
ESE
7
0.5
S
9
1.5
ESE
7
1.3
ESE
7
1.2
ESE
7
0.9
E
7
0.6
SE
7
1.6
ESE
9
1.8
E
9
1.7
E
9
1.8
E
9
1.7
E
9
Energy kJ
443
496
648
187
138
130
127
125
127
176
43
217
149
128
74
43
374
528
439
505
461
Swell 2
Height (m)
Direction
Period (s)
0.8
S
15
0.9
E
13
0.9
E
13
0.1
N
9
0.3
SSE
14
0.5
E
12
0.4
E
11
0.4
E
11
0.6
S
10
0.7
S
9
0.2
E
10
0.4
S
9
0.5
S
9
0.5
S
9
0.6
SSE
7
0.6
E
7
0.1
S
13
0.3
SSE
8
0.2
S
8
Energy kJ
272
277
268
2
36
68
38
38
70
85
8
28
41
41
35
36
3
13
5
Swell 3
Height (m)
Direction
Period (s)
0.8
E
13
0.8
S
14
0.1
N
9
0.1
N
10
0.1
S
25
0.2
S
21
0.3
S
18
0.3
E
11
0.3
E
11
0.1
S
16
0.4
E
9
0.4
E
9
0.4
E
9
0.4
E
9
0.1
S
13
0.1
S
12
Energy kJ
219
239
2
2
12
35
54
21
20
5
27
26
25
24
3
3
Wind waves
Height (m)
Direction
Period (s)
1.5
SSE
11
1.6
SSE
10
1.6
SE
7
1.6
SE
7
1.6
SE
7
1.4
E
6
1.7
ESE
7
Energy kJ
531
562
226
219
220
156
256
Nearest Offshore or Glassy
Rating
(10 max)
3
2
3
3
2
1
2
1
1
2
1
1
2
1
1
1
2
3
2
2
2
Distance (km)
0
141
1
135
248
141
270
215
141
52
226
11
0
0
0
0
0
2
0
46
2
Best forecast wave conditions in Newcastle
Rating
(10 max)
3
3
2
2
2
1
1
1
2
3
2
2
3
Best forecast wave conditions in Australia
Rating
(10 max)
4
3
4
4
4
4
5
4
2
4
4
4
4
4
5
4
4
5
4
4
4
Header Global
Rating
(10 max)
6
5
5
9
9
8
9
5
6
5
5
7
5
5
5
5
4
5
5
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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