Surf Forecasts:
How big are the waves at Backdoor 4 today (21 Sep):
- Afternoon surf: Afternoon surf (21 Sep, local time) - 0.5ft (0.1m), 11s period with E swell.
- Evening surf: Evening surf (21 Sep, local time) - 8ft (2.4m), 8s period with SSE swell.
The current surf forecast for Backdoor 4 at 11PM is: 2.5m 8s primary swell from a South-southeast direction and 1.4m 11s secondary swell from a South direction, 0.1m 5s secondary swell from a Northeast direction (forecast issued at 03:00pm September 21). The wind direction is predicted to be offshore and the swell rating is 11.
| Time (AEST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (21 Sep) | - | - |
| Afternoon (21 Sep) | 0.5ft (0.1m) | 11s |
| Evening (21 Sep) | 8ft (2.4m) | 8s |
Table - waves today at Backdoor 4. (Swell directed towards the surf break)
Short Range ForecastModerate rain (total 19mm), heaviest on Tue night. Very mild (max 18°C on Wed morning, min 14°C on Mon night). Mainly fresh winds. | ||||||||||||||||||||
Mon 21 | Tuesday 22 | Wednesday 23 | ||||||||||||||||||
1 PM | 4 PM | 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 11 | E 11 | SSE 7 | SSE 8 | S 10 | S 10 | S 9 | S 9 | SSE 8 | S 11 | S 10 | S 19 | S 19 | S 19 | S 17 | S 16 | ENE 6 | ENE 6 | ENE 6 | ENE 6 |
Wave Graph  | ||||||||||||||||||||
 kJ | 350 | 2 | 397 | 831 | 1838 | 1268 | 763 | 393 | 428 | 496 | 325 | 247 | 347 | 446 | 271 | 181 | 229 | 271 | 281 | 230 |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | off | off | off | off | off | off | off | cross-off | cross-off | cross | cross | cross-on | cross-on | cross-on | on | cross-on | cross-on | cross-on | cross-on | cross-on |
High Tide | 4:18PM1.29m | 5:17AM1.00m | 5:08PM1.36m | 5:57AM1.10m | 5:51PM1.42m | |||||||||||||||
Low Tide | 11:15PM0.38m | 10:43AM0.53m | 11:53PM0.30m | 11:33AM0.45m | ||||||||||||||||
 |  |  | | | |  |  | | |  | | | |  | | | |  | | |
 | — | — | — | — | — | 5:43 | — | — | — | — | — | — | — | 5:43 | — | — | — | — | — | — |
 | — | 5:47 | — | — | — | — | — | — | — | 5:49 | — | — | — | — | — | — | — | 5:50 | — | — |
mm | — | — | — | — | — | — | — | 1 | 2 | 2 | 3 | 5 | 2 | 2 | 1 | — | 1 | — | — | — |
Temp °C | 18 | 17 | 16 | 15 | 14 | 15 | 15 | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 17 | 18 | 18 | 18 | 18 | 18 |
Feels °C | 13 | 13 | 11 | 10 | 9 | 11 | 12 | 15 | 15 | 14 | 14 | 13 | 13 | 14 | 16 | 17 | 14 | 13 | 13 | 14 |
Swell 1 Height (m) Direction Period (s) | NNW 3 | NE 5 | S 12 | S 12 | S 10 | S 10 | S 9 | S 9 | SSE 8 | S 11 | S 10 | S 10 | S 9 | S 10 | S 10 | S 10 | S 11 | S 11 | S 12 | S 12 |
| kJ | 1 | 1 | 48 | 175 | 1490 | 1268 | 763 | 393 | 298 | 496 | 325 | 219 | 173 | 146 | 118 | 125 | 146 | 155 | 172 | 172 |
Swell 2 Height (m) Direction Period (s) | NE 5 | E 11 | NE 5 | NE 5 | S 18 | S 17 | S 15 | S 11 | S 11 | S 18 | S 16 | S 19 | S 19 | S 19 | S 17 | S 16 | S 15 | E 13 | E 13 | E 13 |
| kJ | 1 | 2 | 1 | 1 | 25 | 22 | 40 | 121 | 189 | 27 | 84 | 247 | 347 | 446 | 271 | 181 | 115 | 3 | 3 | 3 |
Swell 3 Height (m) Direction Period (s) | WSW 4 | E 11 | E 11 | S 19 | — | — | S 21 | S 20 | S 19 | E 15 | — | — | E 11 | E 11 | E 13 | E 13 | E 13 | E 13 | — | E 13 |
| kJ | 1 | 2 | 2 | 7 | — | — | 8 | 8 | 29 | 4 | — | — | 2 | 2 | 3 | 3 | 3 | 3 | — | 3 |
Wind waves Height (m) Direction Period (s) | S 11 | SSE 6 | SSE 7 | SSE 8 | S 10 | — | — | — | SSE 8 | ESE 5 | ESE 6 | E 6 | E 6 | E 6 | E 6 | E 6 | ENE 6 | ENE 6 | ENE 6 | ENE 6 |
| kJ | 350 | 194 | 397 | 831 | 1838 | — | — | — | 428 | 85 | 122 | 154 | 144 | 125 | 139 | 154 | 229 | 271 | 281 | 230 |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 83 | 238 | 285 | 409 | 248 | 169 | 168 | 0 | 0 | 226 | 226 | 226 | 37 | 37 | 2 | 3 | 37 | 226 | 182 | 182 |
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