Backdoor 4 Surf Break

Lat Long: 33.28° S 151.57° E

Issued: 9 am 07 Jul 2026 (local time)

Forecast update in  hr  min

Today's Backdoor 4 sea temperature is
19.1° 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 7 Jul 2026:

  • Best quality surf: Tuesday 7 Jul, 1PM (local time) - 11ft (3.5m), 11s period, SSE swell with offshore winds.
  • Most powerful swell: Tuesday 7 Jul, 4PM (local time) - 11ft (3.5m), 11s period, SSE swell with 2,904 kJ wave energy.
  • Next surfable swell (1★+): Tuesday 7 Jul, 1PM (local time) - 11ft (3.5m), 11s period with SSE 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 Tuesday (Jul 07) at 1PM. The primary swell is predicted to be 3.5m and 11s period. The wind is predicted to be offshore as the swell arrives.

The most powerful waves expected at Backdoor 4 in the next 16 days are 3.5m 11s and forecast to arrive on Tuesday (Jul 07) at 4PM. Winds are predicted to be offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.9m 4s period and expected on Sunday (Jul 12) at 7PM.

Wave TypeTime (AEST) & Date Wave Height & Period
Next good surf (1 star+) 1PM (Tue 7th Jul)11ft (3.5m) 11s
Best Surf 1PM (Tue 7th Jul)11ft (3.5m) 11s
Most Powerful 4PM (Tue 7th Jul)11ft (3.5m) 11s

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


Updates in  hr  min  s Forecast update imminent

Alright, let’s get after it. Rusty here.

Okay folks, it’s a bit of a wild start for this stretch. The water is sitting at about 66°, which is basically normal for this time of year, so no surprises there.

The main energy hitting us comes from the SSE and SE, and we’ve got a classic case of too much of a good thing at first. A monster 12ft SSE groundswell with a 10-second period is pushing in on Tuesday the 7th. The combined energy is huge at 2481 (strong to very strong). That's gonna be a freight train. The wind is offshore or cross-off though, so it will be clean as a whistle. But be honest with yourself – at that size, this is for experts only. Beginners, sit this one out.

By Wednesday morning the 8th, we’re still dealing with a serious 8ft SE swell with a solid 11-second period and energy of 1853. Still too big for most. The wind stays offshore and clean, so if you’ve got the skills and the nerve… well, it’s going to be a show. This is the standout window for the big-wave chargers.

Thursday the 9th sees the size drop to a far more manageable 6ft, with the same SE direction and a 10-second period. The energy is still moderate at 845. The wind goes light and variable, keeping it clean. This is where it comes into the wheelhouse for the strong intermediate crowd.

Friday the 10th is the sweet spot for most of us. 5-5ft SE swell, decent 9-10 second period, and light offshore winds that will keep it glassy and clean. Energy is moderate around 500. This is a good, fun, clean day for a paddle.

Saturday the 11th and Sunday the 12th are a write-off. The swell drops right out to under 3ft, and the wind turns cross-onshore and choppy. We’re looking at a flat spell that lasts through the middle of the week. Don’t bother.

There is a tiny glimmer on Wednesday the 15th with a 3ft south swell, 10-second period, and glassy conditions in the afternoon, but it’s small and ordinary.

Then, a bombshell for the long-range. Thursday the 16th of July. A powerful 8ft S groundswell with a very long 14-second period is forecast. The energy is back up to 2510. The wind is a solid offshore breeze. That’s another expert-only session, and being a long-period swell from the south, it will really wrap into this reef setup. It’s promising, but we’re a week away, so keep an eye on it.

Friday the 17th settles back down to 5-5ft with a clean, gentle offshore flow. A good option if the big day was too much.

After that, it’s flat and choppy again right through to the end of the outlook.

Best bet for the everyday surfer: Friday the 10th. For the big-wave crew: Tuesday the 7th and Wednesday the 8th, with the long-range potential on Thursday the 16th.

Rusty.

Short Range Forecast

Moderate rain (total 15mm), heaviest on Wed night. Very mild (max 17°C on Wed morning, min 12°C on Wed night). Winds decreasing (fresh winds from the S on Tue afternoon, calm by Thu afternoon).

Days 4-6 Weather Summary

Light rain (total 2mm), mostly falling on Fri morning. Very mild (max 18°C on Sat afternoon, min 10°C on Sun night). Winds increasing (calm on Fri afternoon, fresh winds from the W by Sun morning).

Tuesday
7
Wednesday
8
Thursday
9
Friday
10
Saturday
11
Sunday
12
Monday
13
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
3
2
3
1
1
0
0
0
0
0
0
0
0
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
3.5
SSE
10
3.5
SSE
11
3
SE
11
2.5
SE
11
2.4
SE
11
2.1
SSE
11
1.9
SE
10
1.8
SE
10
1.7
SE
9
1.5
SE
9
1.6
SE
10
1.5
SE
10
1.2
SE
9
1.1
SE
9
0.8
ESE
10
0.7
ESE
10
0.4
ESE
9
0.4
SE
10
0.6
S
7
0.2
S
12
0.6
W
3
Wave Graph
Metric surfscale
Energy kJ
2304
2904
2330
1630
1227
999
709
614
492
373
496
399
230
168
121
85
35
24
34
10
7
Wind (km/h)
25
SSW
30
S
25
S
20
SSE
20
S
15
SW
10
SW
5
S
10
WSW
10
WSW
10
S
10
WNW
10
NW
15
NW
25
NW
30
W
25
W
20
WNW
25
WNW
15
WNW
20
WNW
Wind State
cross-off
off
off
off
off
cross-off
cross-off
off
cross-off
cross-off
off
cross
cross-on
cross-on
cross-on
cross
cross
cross-on
cross-on
cross
cross-on
High Tide
1:34PM1.25m
1:18AM1.20m
2:29PM1.33m
2:25AM1.12m
3:27PM1.43m
3:41AM1.07m
4:26PM1.53m
4:57AM1.05m
5:24PM1.64m
6:06AM1.07m
6:19PM1.74m
7:08AM1.11m
7:13PM1.82m
Low Tide
7:29PM0.53m
7:46AM0.24m
8:44PM0.49m
8:39AM0.27m
10:00PM0.41m
9:38AM0.29m
11:12PM0.30m
10:39AM0.30m
00:15AM0.17m
11:38AM0.28m
1:13AM0.06m
12:36PM0.26m
2:06AM-0.02m
light rain
light rain
light rain
rain showers
clear
rain showers
light rain
cloud
part cloud
rain showers
part cloud
rain showers
clear
part cloud
part cloud
clear
clear
clear
clear
clear
clear
<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>
4:59
5:00
5:00
5:00
5:00
5:01
5:01
 mm
1
2
2
2
5
3
1
1
Temp °C
15
16
16
17
16
15
13
15
14
15
15
14
17
18
14
16
17
11
18
19
14
Feels °C
9
10
11
13
12
11
11
13
12
13
13
13
14
14
10
8
10
5
12
14
8
Swell 1
Height (m)
Direction
Period (s)
0.6
SE
15
3
SE
11
0.8
ESE
14
2.4
SE
11
1.9
SSE
10
1.9
SE
10
1.8
SE
10
1.7
SE
9
1.5
SE
9
1.6
SE
10
1.5
SE
10
1.2
SE
9
1.1
SE
9
0.8
ESE
10
0.7
ESE
10
0.6
SSW
6
0.5
SSW
6
0.6
S
7
0.5
S
7
0.4
SSW
11
Energy kJ
171
2330
223
1227
726
709
614
492
373
496
399
230
168
121
85
29
23
34
22
42
Swell 2
Height (m)
Direction
Period (s)
0.1
S
18
0.2
S
16
1
ESE
13
1.3
ESE
12
0.8
ESE
11
0.4
ESE
10
0.1
S
16
0.6
SE
12
0.1
S
21
0.2
ESE
16
0.7
ESE
13
0.8
ESE
12
0.6
SSE
9
0.4
SSE
8
0.4
ESE
9
0.4
SE
10
0.2
ESE
9
0.2
ESE
8
0.4
SSW
6
Energy kJ
6
20
335
421
130
38
5
126
8
25
156
161
49
26
35
24
8
7
12
Swell 3
Height (m)
Direction
Period (s)
0.1
S
16
0.1
S
20
0.1
S
18
0.1
S
17
0.1
S
16
0.1
S
15
0.1
S
19
0.1
S
15
0.1
S
16
0.1
S
15
0.2
NNW
4
0.3
SE
8
0.2
S
11
0.2
S
11
0.2
S
12
0.1
SE
8
Energy kJ
5
8
6
6
5
4
7
4
5
4
2
10
9
9
10
2
Wind waves
Height (m)
Direction
Period (s)
3.5
SSE
10
3.5
SSE
11
2.5
SE
11
2.1
SSE
11
0.2
WSW
2
0.4
NW
3
0.5
NW
3
0.7
NW
4
0.6
W
3
0.5
W
3
0.5
W
3
0.5
WNW
3
0.3
NW
3
0.6
W
3
Energy kJ
2304
2904
1630
999
1
2
4
12
8
6
6
6
1
7
Nearest Offshore or Glassy
Rating
(10 max)
1
4
4
4
4
4
3
3
3
2
3
2
2
2
1
1
1
1
1
1
1
Distance (km)
0
52
141
95
0
0
0
0
0
0
0
0
2
2
2
19
19
11
11
118
11
Best forecast wave conditions in Newcastle
Rating
(10 max)
4
4
4
3
3
3
2
3
2
2
2
1
1
1
1
1
1
Best forecast wave conditions in Australia
Rating
(10 max)
7
5
5
7
6
5
4
4
5
4
4
3
4
2
5
5
9
9
7
1
5
Header Global
Rating
(10 max)
7
5
7
9
8
9
7
7
6
7
5
5
5
5
5
5
9
9
7
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)
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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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