Backdoor 4 surfForecast / NSW – Newcastle / Australia

information circle12 Day Weather and Surf, issued 3 am Saturday 16 Aug 2025 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
18.2° 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 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Sunday (Aug 17) at 1PM. The primary swell is predicted to be 1.5m and 8s period with a secondary swell of 0.9m and 9s. The wind is predicted to be cross-offshore as the swell arrives.

The most powerful waves expected at Backdoor 4 in the next 12 days are 2.5m 9s and forecast to arrive on Friday (Aug 22) at 4AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.3m 6s period and expected on Sunday (Aug 17) at 4AM.

Wave TypeTime (AEST) & Date Wave Height & Period
Next good surf (1 star+) 1PM (Sun 17th Aug)5ft (1.5m) 8s
Best Surf 4AM (Fri 22nd Aug)8ft (2.5m) 9s
Most Powerful 4AM (Fri 22nd Aug)8ft (2.5m) 9s

Table - best surf conditions forecast for Backdoor 4 over the next 12 days.

Updates in  hr  min  s Forecast update imminent

Short Range Forecast Heavy rain (total 22mm), heaviest during Mon night. Very mild (max 17°C on Sat morning, min 8°C on Sat night). Wind will be generally light.

Days 3-6 Weather Summary Heavy rain (total 110mm), heaviest during Thu morning. Very mild (max 17°C on Wed night, min 12°C on Tue night). Winds increasing (calm on Wed morning, strong winds from the ESE by Thu morning).

Saturday
16
Sunday
17
Monday
18
Tuesday
19
Wednesday
20
Thursday
21
Friday
22
AMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNight
Rating
(10 max)
0
0
0
0
0
0
0
0
Swell
Height Map
Wave Height (m) & direction (?)
1
E
1
E
1
E
1.6
S
1.3
S
1
E
1.7
S
1.8
S
1.8
SSE
1.8
SSE
1.8
SE
1.3
E
1.8
ESE
2.1
ESE
1.5
E
2.3
ESE
2.4
ESE
2.5
E
1.8
ESE
1.8
E
1.8
E
Period(s) (?)9998810887876777788999
Wave
Graph
(?)Metric surfscale
Energy (?)165161171438370493612720637669574353587572427588691967919628508
Wind
(km/h)
20
WNW
25
WSW
25
WSW
20
WSW
5
S
20
SW
25
SW
20
S
15
SE
25
ESE
25
ESE
10
E
5
NNE
20
ENE
30
ENE
45
ESE
40
E
30
E
15
E
15
E
15
W
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
cross-
on
cross-
off
cross-
off
cross-
off
offcross-
off
cross-
off
offcross-
off
cross-
off
cross-
off
crossglasscross-
on
crosscross-
off
crosscrosscrosscrosscross
High Tide
/ height (m)
1:41PM
1.44
2:11AM
1.01
2:50PM
1.45
3:38AM
0.95
4:01PM
1.49
4:59AM
0.97
5:06PM
1.55
6:03AM
1.02
6:03PM
1.61
6:53AM
1.09
6:52PM
1.65
7:36AM
1.15
7:36PM
1.66
Low Tide
/ height (m)
8:25PM
0.39
7:57AM
0.40
9:50PM
0.36
9:08AM
0.44
11:06PM
0.29
10:21AM
0.44
12:06AM
0.21
11:26AM
0.40
12:56AM
0.15
12:21PM
0.34
1:38AM
0.11
1:10PM
0.29
2:16AM
0.09
Saturday
16
Sunday
17
Monday
18
Tuesday
19
Wednesday
20
Thursday
21
Friday
22
Sunrise6:31--6:30--6:28--6:28--6:26--6:26--6:24--
Sunset-5:23--5:24--5:25--5:27--5:27--5:28--5:29-
cloudrain showersclearclearpart cloudpart cloudrain showersmod rainheavy rainlight rainlight rainrain showerslight rainheavy rainheavy rainthunderstorm heavy rainrain showersrain showersrain showersrain showers
Rain (mm)
-1----1614332651220201110411
Temp. °C171611131412121314161615131417151617181815
Feels °C (?)1310591186899109121097911161614
  • 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

Eyeball surf reportRecent Eyeball Surf Reports for NSW - Newcastle

  1. weather stationWind Update Continuing clean conditions at Backdoor 4 (light winds from the WNW at Norah Head Automatic Weather Station 2 km from Backdoor 4). 1.0m 8s swell from the E to make surfable waves.

    Backdoor 4
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1 h 3 min ago

6 km/h
WNW
Clean
Please reload the page to see if there are any updates.

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.


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 12 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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