Backdoor 4 Surf Break

Lat Long: 33.28° S 151.57° E

Issued: 3 am 21 Jun 2026 (local time)

Forecast update in  hr  min

Today's Backdoor 4 sea temperature is
19.8° C

Slightly warmer than usual

Backdoor 4 surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.


Backdoor 4 surf forecast from 20 Jun 2026:

  • Best quality surf: Monday 22 Jun, 1AM (local time) - 5.5ft (1.7m), 8s period, S swell with cross-offshore winds.
  • Most powerful swell: Saturday 27 Jun, 7PM (local time) - 6ft (1.8m), 10s period, SE swell with 647 kJ wave energy.
  • Next surfable swell (1★+): Sunday 21 Jun, 1PM (local time) - 2ft (0.6m), 11s period with E swell.

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 Sunday (Jun 21) at 1PM. The primary swell is predicted to be 0.6m and 11s period with a secondary swell of 0.4m and 11s. The wind is predicted to be glassy as the swell arrives.

The most powerful waves expected at Backdoor 4 in the next 16 days are 1.8m 10s and forecast to arrive on Saturday (Jun 27) at 7PM. Winds are predicted to be offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.5m 10s period and expected on Sunday (Jun 21) at 4PM.

Wave TypeTime (AEST) & Date Wave Height & Period
Next good surf (1 star+) 1PM (Sun 21st Jun)2ft (0.6m) 11s
Best Surf 1AM (Mon 22nd Jun)5.5ft (1.7m) 8s
Most Powerful 7PM (Sat 27th Jun)6ft (1.8m) 10s

Table - best surf conditions forecast for Backdoor 4 over the next 16 days.


Updates in  hr  min  s Forecast update imminent

Short Range Forecast

Light rain (total 3mm), mostly falling on Sun night. Very mild (max 18°C on Sun morning, min 11°C on Mon night). Wind will be generally light.

Days 4-6 Weather Summary

Heavy rain (total 47mm), heaviest during Fri night. Very mild (max 16°C on Wed morning, min 12°C on Thu night). Winds decreasing (fresh winds from the SSE on Wed afternoon, calm by Fri night).

Sunday
21
Monday
22
Tuesday
23
Wednesday
24
Thursday
25
Friday
26
Saturday
27
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
0
0
3
2
2
2
1
2
2
2
1
1
2
2
2
1
2
3
3
3
3
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
0.5
E
11
0.5
E
11
1.7
S
8
1.9
S
9
1.5
S
8
1.3
S
8
1.3
S
8
1.4
SSE
8
1.4
SSE
8
1.4
S
8
1.6
S
8
1.9
SSE
7
1.7
SSE
8
1.5
SSE
8
1.5
SSE
8
1.4
SSE
8
1.5
SSE
9
1.7
SSE
9
1.6
SE
9
1.8
SE
10
1.7
SE
10
Wave Graph
Metric surfscale
Energy kJ
61
59
377
550
284
201
196
238
226
251
331
339
345
277
280
268
324
426
406
634
580
Wind (km/h)
10
WNW
15
SE
10
WSW
15
SW
15
S
15
WSW
15
WSW
15
S
15
WSW
15
SW
30
SSE
25
SSE
20
S
20
S
15
SW
20
SW
20
S
0
WNW
5
SW
15
SSW
10
WSW
Wind State
cross
cross-off
cross-off
cross-off
off
cross-off
cross-off
off
cross-off
cross-off
off
off
off
off
cross-off
cross-off
off
glassy
cross-off
cross-off
cross-off
High Tide
1:49PM1.20m
1:33AM1.27m
2:45PM1.25m
2:32AM1.13m
3:38PM1.31m
3:35AM1.03m
4:26PM1.36m
4:37AM0.98m
5:11PM1.41m
5:34AM0.96m
5:53PM1.46m
6:25AM0.96m
6:33PM1.50m
Low Tide
7:34PM0.52m
8:09AM0.25m
8:48PM0.53m
8:53AM0.32m
10:00PM0.51m
9:37AM0.37m
11:05PM0.47m
10:22AM0.40m
11:59PM0.41m
11:06AM0.42m
00:44AM0.35m
11:50AM0.42m
1:26AM0.29m
clear
cloud
light rain
rain showers
clear
clear
clear
clear
clear
clear
light rain
light rain
light rain
part cloud
clear
rain showers
light rain
heavy rain
heavy rain
rain showers
rain showers
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:56
6:56
6:56
6:56
6:56
6:56
6:56
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
4:52
4:53
4:53
4:53
4:53
4:54
4:54
 mm
2
1
5
2
1
1
5
33
11
1
2
Temp °C
18
17
16
16
16
15
15
16
14
16
16
16
16
16
15
15
14
14
12
13
13
Feels °C
16
13
14
13
12
12
11
12
11
11
10
10
11
11
11
11
11
13
11
11
11
Swell 1
Height (m)
Direction
Period (s)
0.5
E
11
0.5
S
10
1.3
S
8
1.9
S
9
1.5
S
8
1.3
S
8
1.3
S
8
1.4
SSE
8
1.4
SSE
8
1.4
S
8
0.2
E
9
0.1
S
15
0.2
E
8
0.1
S
14
1.5
SSE
8
1.4
SSE
8
1.5
SSE
9
1.7
SSE
9
1.6
SE
9
1.8
SE
10
1.7
SE
10
Energy kJ
61
54
224
550
284
201
196
238
226
251
6
5
5
4
280
268
324
426
406
634
580
Swell 2
Height (m)
Direction
Period (s)
0.4
S
11
0.5
E
11
0.5
E
10
0.5
E
10
0.4
ENE
10
0.4
ENE
10
0.4
S
16
0.3
ENE
9
0.2
E
9
0.2
E
9
0.2
ENE
9
0.1
S
15
0.1
S
15
0.1
NE
8
0.2
ESE
9
0.7
ESE
8
0.1
NE
8
0.6
SE
13
0.8
SE
13
0.2
S
19
0.2
S
18
Energy kJ
37
59
54
51
33
31
79
17
6
6
7
4
4
3
8
70
2
109
231
30
25
Swell 3
Height (m)
Direction
Period (s)
0.2
SSW
5
0.1
NE
6
0.1
NE
6
0.1
NE
5
0.3
S
13
0.3
S
18
0.3
ENE
9
0.3
S
14
0.2
S
13
0.2
S
15
0.1
E
9
0.1
NE
9
0.1
S
15
0.1
S
15
0.1
S
20
0.2
S
20
Energy kJ
2
1
1
1
31
54
17
37
14
18
2
3
4
4
8
30
Wind waves
Height (m)
Direction
Period (s)
0.3
WNW
3
0.4
SSW
5
1.7
S
8
0.2
W
3
1.6
S
8
1.9
SSE
7
1.7
SSE
8
1.5
SSE
8
Energy kJ
1
9
377
1
331
339
345
277
Nearest Offshore or Glassy
Rating
(10 max)
1
1
3
2
2
2
2
2
2
2
2
2
2
2
2
2
2
3
3
3
3
Distance (km)
0
0
0
0
0
0
0
0
0
0
135
176
0
0
0
0
0
0
0
0
0
Best forecast wave conditions in Newcastle
Rating
(10 max)
1
1
3
3
2
2
2
2
2
2
2
2
2
3
2
3
3
3
3
Best forecast wave conditions in Australia
Rating
(10 max)
4
3
4
5
4
4
4
3
4
3
4
3
4
2
4
4
4
4
4
4
4
Header Global
Rating
(10 max)
4
9
5
7
5
7
5
6
5
7
9
7
6
7
5
5
5
5
6
6
5
  • 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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