Surf Forecasts:
Backdoor 4 surf forecast from 10 Jul 2026:
- Best quality surf: Wednesday 15 Jul, 4PM (local time) - 7ft (2.2m), 9s period, S swell with offshore winds.
- Most powerful swell: Wednesday 15 Jul, 4PM (local time) - 7ft (2.2m), 9s period, S swell with 800 kJ wave energy.
- Next surfable swell (1★+): Friday 10 Jul, 4PM (local time) - 5.5ft (1.7m), 10s period with SE 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 Friday (Jul 10) at 4PM. The primary swell is predicted to be 1.7m and 10s period with a secondary swell of 0.1m and 21s. 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 2.2m 9s and forecast to arrive on Wednesday (Jul 15) 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 1.0m 5s period and expected on Wednesday (Jul 15) at 4AM.
| Wave Type | Time (AEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 4PM (Fri 10th Jul) | 5.5ft (1.7m) 10s |
| Best Surf | 4PM (Wed 15th Jul) | 7ft (2.2m) 9s |
| Most Powerful | 4PM (Wed 15th Jul) | 7ft (2.2m) 9s |
Table - best surf conditions forecast for Backdoor 4 over the next 16 days.
Alright folks, Rusty here with the outlook for the next couple of weeks. We’ve got a bit of a mixed bag, but let’s get into it.
First up, we’re looking at Backdoor 4. This is a reef break, exposed to the east, and it’s very consistent, so it’s always worth checking. The water’s sitting at 66°, which is about what you’d expect for this time of year.
The best window of the whole run is hands down the first day. Friday, July 10th, we’ve got a solid SE swell pushing 6ft with a 10-second period, and the combined energy is moderate at 592. The wind is a light cross-off in the morning, going glassy by afternoon. That’s clean, lined-up waves for the intermediate crew. That Friday afternoon session is the true standout—glass off, 6ft, just you and the ocean.
Saturday, July 11th, drops right off. The swell backs down to under 3ft, and the wind gets messy. It’s a write-off for the weekend and through most of the following week. The energy falls off a cliff, dipping to 11 and 13, just tiny, weak slop. You’ll be waiting for something better.
Then we get a spike on Wednesday, July 15th. A solid S swell hits 7ft with a 9-second period, and the energy is strong at 822. The wind is offshore and clean, but this one’s pushing into the “experts only” zone. It’s a big, powerful reef wave, and it might be too much for the average surfer. Still, if you’ve got the skill, that Wednesday afternoon is a heavy, clean session.
After that, we get a bit of a tease. Saturday, July 18th, sees a 5-5ft E swell with a 10-second period and moderate energy (523-555). The wind is light and cross-off, keeping it clean. It’s a good, solid day, but not a true standout—just a great, consistent day on the reef.
The rest of the run into the second week is mostly flat or blown out. There’s a small window on Friday, July 24th, with a glassy afternoon and a 3ft SSE swell, but it’s weak and ordinary. Nothing to get excited about.
So, to sum it up: the best on offer is Friday, July 10th, especially the afternoon. Then, for the big-wave crew, Wednesday, July 15th afternoon is a serious, heavy session. The rest is a lot of waiting, but that’s the game.
Stay stoked,
Rusty
Short Range ForecastSome drizzle, heaviest during Fri afternoon. Very mild (max 18°C on Sat afternoon, min 10°C on Sun night). Winds increasing (calm on Fri afternoon, fresh winds from the WNW by Sun morning). | Days 4-6 Weather SummaryLight rain (total 2mm), mostly falling on Tue night. Very mild (max 19°C on Mon afternoon, min 12°C on Mon night). Wind will be generally light. | ||||||||||||||||||||
Friday 10 | Saturday 11 | Sunday 12 | Monday 13 | Tuesday 14 | Wednesday 15 | Thursday 16 | |||||||||||||||
AM | 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) | SE 10 | SE 10 | SE 10 | ESE 12 | ESE 11 | SE 10 | ESE 10 | ESE 10 | ESE 9 | WNW 4 | ESE 8 | W 3 | S 11 | S 10 | E 10 | S 10 | S 9 | S 9 | S 8 | S 9 | S 8 |
Wave Graph  | |||||||||||||||||||||
 kJ | 585 | 592 | 373 | 210 | 234 | 225 | 109 | 51 | 31 | 9 | 7 | 8 | 9 | 8 | 2 | 610 | 800 | 665 | 341 | 404 | 133 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | glassy | cross-on | cross-on | cross-on | cross-on | cross | cross | cross | cross | cross-on | cross-on | cross | cross-off | cross-off | off | off | cross-off | cross-off | off | cross-off |
High Tide | 4:26PM1.53m | 4:57AM1.05m | 5:24PM1.64m | 6:06AM1.07m | 6:19PM1.74m | 7:08AM1.11m | 7:13PM1.82m | 8:03AM1.14m | 8:04PM1.86m | 8:55AM1.18m | 8:54PM1.85m | 9:44AM1.21m | 9:42PM1.79m | ||||||||
Low Tide | 11:12PM0.30m | 10:39AM0.30m | 00:15AM0.17m | 11:38AM0.28m | 1:13AM0.06m | 12:36PM0.26m | 2:06AM-0.02m | 1:30PM0.24m | 2:56AM-0.06m | 2:23PM0.23m | 3:43AM-0.06m | 3:15PM0.24m | |||||||||
 |  |  |  | | | | |  | | | |  | |  | | | | | | | |
 | 6:56 | — | — | 6:56 | — | — | 6:56 | — | — | 6:56 | — | — | 6:54 | — | — | 6:54 | — | — | 6:54 | — | — |
 | — | 5:00 | — | — | 5:00 | — | — | 5:01 | — | — | 5:01 | — | — | 5:02 | — | — | 5:02 | — | — | 5:04 | — |
mm | — | 1 | — | — | — | — | — | — | — | — | — | — | — | — | 2 | — | — | — | — | — | — |
Temp °C | 15 | 15 | 14 | 17 | 18 | 14 | 15 | 15 | 11 | 18 | 19 | 13 | 19 | 19 | 14 | 16 | 16 | 15 | 15 | 15 | 15 |
Feels °C | 14 | 14 | 13 | 14 | 13 | 10 | 7 | 8 | 5 | 12 | 14 | 8 | 15 | 16 | 10 | 10 | 11 | 12 | 11 | 11 | 12 |
Swell 1 Height (m) Direction Period (s) | SE 10 | SE 10 | SE 10 | SE 9 | SE 8 | SE 10 | ESE 10 | ESE 10 | SSW 6 | S 7 | SSW 6 | SSW 11 | SSW 7 | SSW 7 | S 10 | S 10 | S 17 | SSW 16 | — | E 11 | S 8 |
| kJ | 585 | 592 | 373 | 197 | 132 | 225 | 109 | 51 | 18 | 24 | 14 | 23 | 10 | 9 | 55 | 369 | 22 | 50 | — | 2 | 133 |
Swell 2 Height (m) Direction Period (s) | S 19 | S 21 | ESE 15 | ESE 12 | ESE 11 | S 15 | SE 8 | SSE 8 | ESE 9 | ESE 8 | SSW 12 | SE 8 | S 11 | S 10 | E 10 | — | — | — | — | — | ESE 6 |
| kJ | 7 | 8 | 42 | 210 | 234 | 4 | 17 | 6 | 31 | 7 | 27 | 2 | 9 | 8 | 2 | — | — | — | — | — | 42 |
Swell 3 Height (m) Direction Period (s) | — | S 15 | S 17 | S 15 | S 16 | S 15 | S 14 | NE 5 | S 11 | S 11 | ESE 8 | E 10 | S 20 | S 16 | E 10 | — | — | — | — | — | S 14 |
| kJ | — | 4 | 6 | 4 | 5 | 4 | 4 | 1 | 3 | 9 | 7 | 2 | 8 | 5 | 2 | — | — | — | — | — | 16 |
Wind waves Height (m) Direction Period (s) | WSW 3 | — | — | — | N 2 | NNW 3 | W 4 | WSW 4 | W 4 | WNW 4 | NNW 3 | W 3 | WNW 3 | SW 7 | SSW 5 | S 10 | S 9 | S 9 | S 8 | S 9 | — |
| kJ | 1 | — | — | — | 1 | 5 | 18 | 14 | 14 | 8 | 4 | 8 | 8 | 23 | 41 | 610 | 800 | 665 | 341 | 404 | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 0 | 0 | 0 | 2 | 2 | 2 | 40 | 40 | 2 | 11 | 11 | 218 | 218 | 3 | 3 | 1 | 1 | 0 | 0 | 0 | 0 |
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.
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