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Backdoor 4 Surf Forecast
/ NSW – Newcastle (55 breaks) / New South Wales (297 breaks) /
Surf Forecasts:
Backdoor 4 surfForecast / NSW – Newcastle / Australia
48hr Weather and Surf, issued 3 am Sunday 17 May 2026 AESTForecast 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
21.0° C
(Which is normal for this time of year)How big are the waves at Backdoor 4 today?
The current surf forecast for Backdoor 4 at 7AM is: 2.4m 9s primary swell from a East-northeast direction and 2.1m 9s secondary swell from a East direction, 0.1m 12s secondary swell from a South direction (forecast issued at 03:00am May 17). The wind direction is predicted to be onshore and the swell rating is 11.
| Time (AEST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (17 May) | 8ft (2.4m) | 9s |
| Afternoon (17 May) | 8ft (2.4m) | 9s |
| Evening (17 May) | 8ft (2.5m) | 9s |
Table - waves today at Backdoor 4. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastHeavy rain (total 47mm), heaviest during Tue night. Warm (max 21°C on Sun afternoon, min 15°C on Tue night). Winds increasing (calm on Mon afternoon, strong winds from the SW by Tue night). | ||||||||||||||||||||||||
Sunday 17 | Monday 18 | Tuesday 19 | ||||||||||||||||||||||
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 | 1 AM | 4 AM | 7 AM | 10 AM | 1 PM | 4 PM | 7 PM | 10 PM | |
Swell Height Map |    |    |    | |||||||||||||||||||||
ENE 8 | ENE 8 | ENE 9 | ENE 9 | E 9 | ENE 9 | ENE 9 | ENE 9 | E 9 | E 9 | E 9 | E 9 | ENE 9 | ENE 9 | ENE 8 | ENE 9 | ENE 9 | E 9 | E 9 | ENE 9 | ENE 9 | ENE 10 | ENE 10 | E 10 | |
704 | 785 | 858 | 900 | 627 | 880 | 1016 | 969 | 726 | 777 | 710 | 632 | 572 | 516 | 653 | 493 | 432 | 449 | 459 | 612 | 721 | 1001 | 1178 | 1090 | |
Wind (km/h) | ||||||||||||||||||||||||
on | on | on | on | cross-on | cross-on | on | cross-on | cross-off | glassy | glassy | glassy | glassy | glassy | glassy | on | on | off | off | cross-off | cross-off | cross-off | cross-off | cross-off | |
High Tide | 8:21AM1.24m | 8:30PM1.83m | 9:16AM1.19m | 9:19PM1.82m | 10:13AM1.13m | |||||||||||||||||||
Low Tide | 2:23AM0.00m | 1:59PM0.19m | 3:17AM-0.04m | 2:47PM0.24m | 4:12AM-0.03m | 3:37PM0.30m | ||||||||||||||||||
 | |  | |  | |  |  |  |  |  | | | | | | | | | | | | | | |
 | — | 6:37 | — | — | — | — | — | — | — | 6:39 | — | — | — | — | — | — | — | 6:39 | — | — | — | — | — | — |
 | — | — | — | — | — | 5:00 | — | — | — | — | — | — | — | 5:00 | — | — | — | — | — | — | — | 5:00 | — | — |
1 | 1 | — | — | — | — | 1 | 1 | — | — | 1 | 1 | — | — | 1 | 1 | 2 | 3 | 5 | 4 | — | — | 3 | 4 | |
Temp °C | 18 | 18 | 17 | 17 | 19 | 20 | 21 | 19 | 18 | 17 | 16 | 17 | 18 | 18 | 19 | 18 | 17 | 16 | 16 | 17 | 18 | 18 | 17 | 15 |
18 | 17 | 16 | 16 | 19 | 21 | 21 | 20 | 19 | 18 | 16 | 18 | 19 | 19 | 20 | 18 | 18 | 17 | 15 | 15 | 16 | 16 | 16 | 9 | |
Swell 1 Height (m) Direction Period (s) | E 8 | E 8 | E 9 | E 9 | E 9 | E 9 | E 9 | E 9 | E 9 | E 9 | E 9 | E 9 | ENE 9 | ENE 9 | ENE 9 | ENE 9 | ENE 9 | E 9 | E 9 | ENE 9 | ENE 9 | ENE 10 | ENE 10 | E 10 |
 kJ | 555 | 630 | 668 | 627 | 627 | 707 | 812 | 812 | 726 | 777 | 710 | 632 | 572 | 516 | 516 | 493 | 432 | 449 | 459 | 612 | 721 | 1001 | 1178 | 1090 |
Swell 2 Height (m) Direction Period (s) | S 8 | — | S 12 | — | — | — | — | — | — | — | S 16 | S 16 | — | — | — | S 15 | S 15 | — | — | — | — | S 3 | — | — |
| kJ | 5 | — | 3 | — | — | — | — | — | — | — | 5 | 5 | — | — | — | 4 | 4 | — | — | — | — | 4 | — | — |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | ENE 8 | ENE 8 | ENE 9 | ENE 9 | — | ENE 9 | ENE 9 | ENE 9 | — | — | — | — | — | — | ENE 8 | — | — | — | — | — | SSW 3 | WSW 3 | SSW 4 | SW 4 |
| kJ | 704 | 785 | 858 | 900 | — | 880 | 1016 | 969 | — | — | — | — | — | — | 653 | — | — | — | — | — | 1 | 1 | 9 | 40 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 2 | 3 | 2 | 2 | 2 | 3 | 2 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 84 |
Best forecast wave conditions in Newcastle | ||||||||||||||||||||||||
Best forecast wave conditions in Australia | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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