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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 9 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 2PM is: 2.0m 9s primary swell from a East direction (forecast issued at 09:00am May 17). The wind direction is predicted to be cross-onshore.
| Time (AEST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (17 May) | 8ft (2.4m) | 9s |
| Afternoon (17 May) | 7ft (2.1m) | 9s |
| Evening (17 May) | 7ft (2.2m) | 9s |
Table - waves today at Backdoor 4. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastModerate rain (total 19mm), heaviest on Mon night. Warm (max 20°C on Sun afternoon, min 15°C on Tue night). Winds increasing (calm on Mon afternoon, fresh winds from the SW by Tue night). | ||||||||||||||||||||||||
Sunday 17 | Monday 18 | Tuesday 19 | Wed 20 | |||||||||||||||||||||
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 | 1 AM | 4 AM | |
Swell Height Map |    |    |    |    | ||||||||||||||||||||
ENE 9 | E 9 | E 9 | E 9 | E 9 | E 9 | E 9 | E 9 | E 9 | E 9 | ENE 9 | ENE 9 | ENE 8 | ENE 9 | ENE 9 | ENE 9 | ENE 9 | ENE 9 | ENE 9 | E 10 | E 10 | ENE 10 | E 10 | S 9 | |
880 | 627 | 627 | 707 | 715 | 783 | 794 | 794 | 726 | 646 | 572 | 586 | 787 | 566 | 484 | 461 | 567 | 1015 | 1145 | 1005 | 961 | 1038 | 865 | 1051 | |
Wind (km/h) | ||||||||||||||||||||||||
on | on | cross-on | cross-on | on | on | cross-on | glassy | glassy | glassy | glassy | cross-off | glassy | on | glassy | glassy | glassy | cross-off | cross | 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 | 10:11PM1.78m | ||||||||||||||||||
Low Tide | 1:59PM0.19m | 3:17AM-0.04m | 2:47PM0.24m | 4:12AM-0.03m | 3:37PM0.30m | |||||||||||||||||||
 |  |  | |  |  |  | |  | | | | | | | | | | | | | | | | |
 | 6:37 | — | — | — | — | — | — | 6:39 | — | — | — | — | — | — | — | 6:39 | — | — | — | — | — | — | — | 6:39 |
 | — | — | — | 5:00 | — | — | — | — | — | — | — | 5:00 | — | — | — | — | — | — | — | 5:00 | — | — | — | 4:59 |
1 | — | — | — | 1 | 1 | — | — | 1 | — | — | — | — | 2 | 3 | 2 | 2 | 1 | — | — | 1 | 2 | 1 | 2 | |
Temp °C | 17 | 17 | 19 | 19 | 20 | 19 | 18 | 17 | 17 | 17 | 19 | 18 | 18 | 17 | 17 | 16 | 16 | 16 | 17 | 17 | 16 | 16 | 15 | 16 |
17 | 17 | 19 | 19 | 20 | 20 | 19 | 18 | 18 | 18 | 20 | 18 | 19 | 17 | 19 | 17 | 17 | 16 | 16 | 14 | 13 | 11 | 10 | 12 | |
Swell 1 Height (m) Direction Period (s) | 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 | ENE 9 | ENE 9 | ENE 9 | ENE 9 | E 10 | E 10 | ENE 10 | E 10 | ENE 10 |
 kJ | 660 | 627 | 627 | 707 | 715 | 783 | 794 | 794 | 726 | 646 | 572 | 586 | 608 | 566 | 484 | 461 | 567 | 1015 | 1145 | 1005 | 961 | 1038 | 865 | 769 |
Swell 2 Height (m) Direction Period (s) | S 8 | — | — | — | — | — | — | S 16 | S 16 | S 16 | — | — | — | S 15 | — | — | — | — | — | — | — | — | — | — |
| kJ | 1 | — | — | — | — | — | — | 5 | 5 | 5 | — | — | — | 4 | — | — | — | — | — | — | — | — | — | — |
Swell 3 Height (m) Direction Period (s) | S 12 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | 3 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | ENE 9 | — | — | — | — | — | — | — | — | — | — | — | ENE 8 | — | — | — | — | — | SW 3 | SSW 3 | SSW 4 | SSW 5 | SSW 8 | S 9 |
| kJ | 880 | — | — | — | — | — | — | — | — | — | — | — | 787 | — | — | — | — | — | 4 | 7 | 17 | 95 | 637 | 1051 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 2 | 2 | 3 | 37 | 2 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 141 | 45 | 0 |
Best forecast wave conditions in Newcastle | ||||||||||||||||||||||||
Best forecast wave conditions in Australia | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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