
Surf Forecasts:
Backdoor 4 surf forecast from 2 Aug 2026:
- Best quality surf: Friday 7 Aug, 7AM (local time) - 4.5ft (1.3m), 9s period, S swell with cross-offshore winds.
- Most powerful swell: Monday 3 Aug, 1AM (local time) - 4.5ft (1.4m), 12s period, SE swell with 558 kJ wave energy.
- Next surfable swell (1★+): Wednesday 5 Aug, 1PM (local time) - 3ft (0.9m), 9s period with S 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 Wednesday (Aug 05) at 1PM. The primary swell is predicted to be 0.9m and 9s period with a secondary swell of 0.4m and 9s. 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 1.4m 12s and forecast to arrive on Monday (Aug 03) at 1AM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.7m 4s period and expected on Tuesday (Aug 04) at 10PM.
| Wave Type | Time (AEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 1PM (Wed 5th Aug) | 3ft (0.9m) 9s |
| Best Surf | 7AM (Fri 7th Aug) | 4.5ft (1.3m) 9s |
| Most Powerful | 1AM (Mon 3rd Aug) | 4.5ft (1.4m) 12s |
Table - best surf conditions forecast for Backdoor 4 over the next 16 days.
The Lowdown
Alright, Rusty here, looking at the surf for the next couple of weeks.
We’re starting off with a dry spell. There’s nothing worth paddling out for on Sunday, August 2nd, or for the next few days after that. We’re looking at a gap of about four days with pretty ordinary conditions. The water temp is sitting at 64°, which is pretty much what you’d expect for this time of year – nothing unusual there.
The first real signs of life show up on Wednesday, August 5th, in the afternoon. It’s not going to blow your mind, but we’ve got some small, surfable waves with a clean look. The swell is a tiny 3 feet out of the south, with a short period of 8 seconds and weak energy (131). It’s a start, but nothing to get excited about.
Thursday, August 6th, is still on the marginal side with a bit more size, around 4 feet from the south, but the wind is all wrong, making it a bit messy.
Now, Friday, August 7th, is where it starts to get interesting. The morning is looking proper. We’ll have a glassy, clean ocean with a 4-foot south swell, period of 9 seconds, and moderate energy (250). That’s a good sign for a fun session. The afternoon cleans up nicely too with a light cross-offshore wind. This is the first real standout of the period.
Saturday, August 8th, is a bit of a mixed bag. The morning might offer some glassy waves but they’re dropping to 2 feet with weak energy (95). The afternoon turns into a choppy mess with a strong cross-onshore wind.
We go through another quiet, unremarkable stretch from Sunday, August 9th, through to Thursday, August 13th. The swell is tiny and inconsistent, with a lot of poor conditions and wrong wind directions. Not worth your time.
Things start to look up again on Friday, August 14th. The morning session brings a moderate offshore wind and a 5-foot south-east swell. The period is 9 seconds and the energy is moderate (416). It’s a solid, clean option for a morning surf.
Then we get to the real highlight of the whole forecast. Sunday, August 16th, is looking like a gem. The morning has a 7-foot south swell, 13-second period, and very strong energy (1372). The wind is light and cross-offshore, keeping it clean. This is excellent surf, but it’s definitely for experienced surfers only – that’s a solid 7 feet of south swell. The afternoon is even bigger at 7 feet, but the forecast says it might actually be too big for this break, so be careful.
Monday, August 17th, isn’t a bad follow-up either. The morning is glassy with a 6-foot south swell, very long 15-second period, and even stronger energy (1594). That’s a proper groundswell. The long period might make it a bit tricky at a beach break, but if you can find a point or a reef, it’ll be well-shaped. The afternoon drops to 5 feet with a 12-second period, still clean and very good.
To be honest, the standout window is the morning of Sunday, August 16th, and the morning of Monday, August 17th at Backdoor 4. The swell is solid, the direction is good out of the south, and the wind is light and clean. If you’re an experienced surfer, circle those dates.
Rusty.
Short Range ForecastMostly dry. Warm (max 22°C on Mon afternoon, min 9°C on Tue night). Wind will be generally light. | Days 5-7 Weather SummaryMostly dry. Very mild (max 16°C on Wed afternoon, min 9°C on Wed night). Wind will be generally light. | |||||||||||||||||||
Sun 2 | Monday 3 | Tuesday 4 | Wednesday 5 | Thursday 6 | Friday 7 | Saturday 8 | ||||||||||||||
PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | |
Swell Height Map | ||||||||||||||||||||
Wave Height (m) Direction Period (s) | SSE 13 | SE 12 | SE 11 | SE 11 | SE 10 | SE 10 | ESE 7 | E 11 | S 6 | S 8 | S 8 | S 9 | S 10 | S 9 | S 9 | S 9 | S 9 | S 8 | S 8 | S 7 |
Wave Graph | ||||||||||||||||||||
914 | 558 | 273 | 220 | 106 | 25 | 9 | 10 | 39 | 98 | 103 | 214 | 356 | 325 | 235 | 230 | 125 | 63 | 45 | 15 | |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | on | on | cross-on | cross | cross | cross-off | cross | cross | cross-off | cross-off | cross | cross | cross-on | glassy | cross-off | cross | glassy | cross-on | on |
High Tide | 10:28PM1.45m | 11:16AM1.29m | 11:09PM1.35m | 12:01PM1.32m | 11:57PM1.24m | 12:52PM1.35m | 00:55AM1.12m | 1:51PM1.39m | 2:10AM1.03m | 2:58PM1.44m | 3:35AM0.98m | 4:07PM1.52m | ||||||||
Low Tide | 4:19PM0.37m | 4:59AM0.15m | 5:08PM0.40m | 5:35AM0.19m | 6:03PM0.43m | 6:16AM0.25m | 7:10PM0.45m | 7:05AM0.31m | 8:28PM0.44m | 8:05AM0.36m | 9:51PM0.38m | 9:15AM0.39m | 11:06PM0.28m | |||||||
— | — | 6:43 | — | — | 6:43 | — | — | 6:41 | — | — | 6:41 | — | — | 6:39 | — | — | 6:39 | — | — | |
5:15 | — | — | 5:15 | — | — | 5:15 | — | — | 5:16 | — | — | 5:17 | — | — | 5:17 | — | — | 5:19 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 16 | 16 | 21 | 22 | 16 | 17 | 17 | 13 | 16 | 16 | 13 | 14 | 15 | 13 | 13 | 16 | 16 | 14 | 17 | 15 |
Feels °C | 11 | 12 | 15 | 18 | 12 | 14 | 13 | 7 | 13 | 13 | 8 | 11 | 11 | 9 | 11 | 13 | 15 | 13 | 13 | 10 |
Swell 1 Height (m) Direction Period (s) | SSE 13 | SE 12 | SE 11 | SE 11 | SE 10 | SSW 5 | SSW 6 | SSW 5 | S 6 | S 8 | S 8 | S 9 | S 10 | S 9 | S 9 | S 9 | S 9 | S 8 | S 8 | S 7 |
914 | 558 | 273 | 220 | 106 | 5 | 10 | 29 | 39 | 98 | 103 | 214 | 356 | 325 | 235 | 230 | 125 | 63 | 45 | 15 | |
Swell 2 Height (m) Direction Period (s) | S 21 | NE 4 | S 21 | E 15 | ENE 4 | SE 10 | ESE 7 | E 7 | E 10 | E 9 | E 8 | E 10 | ENE 9 | ENE 7 | ENE 6 | ENE 9 | ENE 10 | SSE 9 | SSE 9 | E 8 |
36 | 15 | 35 | 4 | 2 | 25 | 9 | 3 | 31 | 27 | 12 | 17 | 28 | 10 | 8 | 17 | 33 | 17 | 16 | 10 | |
Swell 3 Height (m) Direction Period (s) | E 17 | S 21 | E 16 | S 16 | N 3 | ESE 7 | SSE 10 | E 11 | S 9 | E 18 | NE 8 | NE 7 | E 16 | NE 3 | E 9 | NE 12 | E 15 | E 9 | E 8 | SSE 8 |
6 | 36 | 5 | 5 | 1 | 10 | 9 | 10 | 15 | 6 | 3 | 2 | 5 | 2 | 7 | 5 | 4 | 15 | 11 | 13 | |
Wind waves Height (m) Direction Period (s) | ENE 3 | NNE 4 | NNE 4 | NNE 3 | WNW 3 | W 3 | — | W 3 | W 3 | — | — | — | — | NNE 3 | — | — | NNE 3 | — | NE 7 | NE 4 |
3 | 26 | 8 | 6 | 2 | 2 | — | 4 | 1 | — | — | — | — | 3 | — | — | 1 | — | 11 | 14 | |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 231 | 2 | 3 | 2 | 0 | 20 | 526 | 22 | 2 | 0 | 0 | 0 | 37 | 2 | 0 | 0 | 0 | 0 | 552 | 47 |
Best forecast wave conditions in Newcastle | ||||||||||||||||||||
Best forecast wave conditions in Australia | ||||||||||||||||||||
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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.











