Surf Forecasts:
How big are the waves at Backdoor 4 today (17 Jul):
- Morning surf: Morning surf (17 Jul, local time) - 3ft (0.9m), 7s period with S swell.
- Afternoon surf: Afternoon surf (17 Jul, local time) - 3.5ft (1.0m), 6s period with E swell.
- Evening surf: Evening surf (17 Jul, local time) - 3.5ft (1.0m), 7s period with E swell.
The current surf forecast for Backdoor 4 at 1AM is: 1.3m 7s primary swell from a South direction and 0.3m 8s secondary swell from a East direction (forecast issued at 09:00pm July 16). An open ocean swell of 0.8m 6s is not directed at the surf break. The wind direction is predicted to be cross-offshore and the swell rating is 2.
| Time (AEST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (17 Jul) | 3ft (0.9m) | 7s |
| Afternoon (17 Jul) | 3.5ft (1.0m) | 6s |
| Evening (17 Jul) | 3.5ft (1.0m) | 7s |
Table - waves today at Backdoor 4. (Swell directed towards the surf break)
Short Range ForecastModerate rain (total 10mm), heaviest on Thu night. Very mild (max 17°C on Fri afternoon, min 15°C on Thu night). Wind will be generally light. | ||||||||||||||||||
Thu 16 | Friday 17 | Saturday 18 | ||||||||||||||||
7 PM | 10 PM | 1 AM | 4 AM | 7 AM | 10 AM | 1 PM | 4 PM | 7 PM | 10 PM | 1 AM | 4 AM | 7 AM | 10 AM | 1 PM | 4 PM | 7 PM | 10 PM | |
Swell Height Map |  |  |  |  |  |  |  | |||||||||||
Wave Height (m) Direction Period (s) | S 8 | S 8 | S 7 | S 7 | S 7 | S 7 | E 6 | E 6 | E 6 | E 7 | ESE 7 | ESE 6 | ESE 6 | ESE 7 | ESE 7 | ESE 8 | E 8 | E 8 |
Wave Graph  | ||||||||||||||||||
 kJ | 346 | 256 | 183 | 121 | 92 | 78 | 81 | 84 | 84 | 89 | 111 | 123 | 140 | 176 | 183 | 232 | 294 | 356 |
Wind (km/h) | ||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-off | cross-off | cross-off | cross-off | off | cross-off | cross-off | cross-off | off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off |
High Tide | 9:42PM1.79m | 10:32AM1.23m | 10:29PM1.67m | 11:20AM1.25m | ||||||||||||||
Low Tide | 4:28AM-0.02m | 4:07PM0.28m | 5:10AM0.04m | 5:01PM0.35m | ||||||||||||||
 |  | | |  | | |  |  | | | | |  | |  |  |  | |
 | — | — | — | 6:54 | — | — | — | — | — | — | — | 6:54 | — | — | — | — | — | — |
 | — | — | — | — | — | — | — | 5:05 | — | — | — | — | — | — | — | 5:05 | — | — |
mm | 3 | 2 | 1 | 1 | 1 | 1 | 1 | — | — | — | 1 | 1 | 1 | — | — | — | — | — |
Temp °C | 16 | 16 | 16 | 15 | 15 | 15 | 16 | 17 | 16 | 16 | 15 | 16 | 16 | 17 | 17 | 17 | 17 | 17 |
Feels °C | 14 | 14 | 13 | 13 | 14 | 14 | 14 | 14 | 14 | 14 | 12 | 13 | 12 | 12 | 12 | 13 | 12 | 13 |
Swell 1 Height (m) Direction Period (s) | S 8 | S 8 | S 7 | S 7 | S 7 | E 6 | E 6 | S 6 | E 6 | S 6 | S 11 | S 10 | S 10 | S 10 | S 10 | S 10 | S 10 | S 9 |
| kJ | 346 | 256 | 183 | 121 | 92 | 78 | 81 | 26 | 84 | 17 | 55 | 54 | 52 | 49 | 47 | 46 | 45 | 42 |
Swell 2 Height (m) Direction Period (s) | S 18 | E 8 | E 8 | E 8 | E 8 | S 7 | S 6 | S 8 | S 6 | S 8 | S 5 | S 21 | S 21 | S 21 | S 20 | S 20 | S 20 | SSE 19 |
| kJ | 24 | 12 | 12 | 21 | 20 | 72 | 52 | 21 | 26 | 21 | 14 | 35 | 35 | 35 | 32 | 31 | 68 | 72 |
Swell 3 Height (m) Direction Period (s) | E 8 | S 18 | S 18 | S 12 | S 18 | S 16 | S 16 | S 11 | S 8 | S 11 | S 21 | — | — | — | S 18 | S 15 | S 18 | SE 18 |
| kJ | 5 | 25 | 25 | 24 | 56 | 21 | 20 | 21 | 21 | 22 | 9 | — | — | — | 6 | 4 | 6 | 13 |
Wind waves Height (m) Direction Period (s) | ESE 6 | ESE 6 | ESE 6 | ESE 6 | ESE 6 | — | — | E 6 | — | E 7 | ESE 7 | ESE 6 | ESE 6 | ESE 7 | ESE 7 | ESE 8 | E 8 | E 8 |
| kJ | 50 | 52 | 48 | 64 | 62 | — | — | 84 | — | 89 | 111 | 123 | 140 | 176 | 183 | 232 | 294 | 356 |
Nearest Offshore or Glassy | ||||||||||||||||||
Distance (km) | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 21 | 45 | 45 | 45 | 45 | 135 | 52 |
Best forecast wave conditions in Newcastle | ||||||||||||||||||
Best forecast wave conditions in Australia | ||||||||||||||||||
Header Global | ||||||||||||||||||
- Map Icons:
Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
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.
Nearest