Backdoor 4 48 hour detailed Surf Forecast

Lat Long: 33.28° S 151.57° E

Issued: 9 pm 13 Sep 2026 (local time)

Forecast update in hr min

Today's Backdoor 4 sea temperature is

17.8°C

Backdoor 4 surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.

Surf Forecasts:

How big are the waves at Backdoor 4 today (14 Sep):

Morning surf: Morning surf (14 Sep, local time) - 2.5ft (0.7m), 12s period with S swell.
Afternoon surf: Afternoon surf (14 Sep, local time) - 2.5ft (0.7m), 11s period with S swell.
Evening surf: Evening surf (14 Sep, local time) - 4ft (1.2m), 6s period with NE swell.

The current surf forecast for Backdoor 4 at 5AM is: 0.8m 12s primary swell from a South direction and 1.0m 6s secondary swell from a Northeast direction, 1.2m 6s secondary swell from a Northeast direction (forecast issued at 09:00pm September 13). The wind direction is predicted to be onshore.

Time (AEST) & Date	Wave Height	Wave Period
Morning (14 Sep)	2.5ft (0.7m)	12s
Afternoon (14 Sep)	2.5ft (0.7m)	11s
Evening (14 Sep)	4ft (1.2m)	6s

Table - waves today at Backdoor 4. (Swell directed towards the surf break)

	Short Range Forecast Mostly dry. Warm (max 24°C on Mon morning, min 12°C on Tue night). Winds increasing (light winds from the NW on Mon night, strong winds from the S by Wed afternoon).
	Sun 13		Monday 14								Tuesday 15
	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
Rating (10 max)	0	0	0	0	0	0	0	0	0	0	0	0	0	1	0	0	0	0
Swell Height Map See all maps
Wave Height (m) Direction Period (s)	NE 6	NE 6	NE 6	S 12	S 12	S 12	S 11	S 11	NE 6	NE 6	NE 6	ENE 6	NE 6	NE 7	NE 7	ENE 6	ENE 6	E 14
Wave Graph
kJ	150	151	178	178	132	132	118	82	111	86	122	69	61	46	36	27	26	15
Wind (km/h)	NE	N	N	NNW	N	NNE	NE	NE	NNE	N	N	NW	NW	S	SE	SSE	S	S
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy	cross-on	on	on	on	on	on	cross-on	cross-on	cross-on	on	on	cross-on	cross-on	off	cross-off	cross-off	off	off
High Tide		9:34PM1.38m				9:57AM1.49m					10:13PM1.25m				10:34AM1.46m
Low Tide				3:39AM0.19m					4:15PM0.24m				4:10AM0.28m				5:01PM0.31m


	—	—	—	5:54	—	—	—	—	—	—	—	5:54	—	—	—	—	—	—
	—	—	—	—	—	—	—	5:44	—	—	—	—	—	—	—	5:44	—	—
mm	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
Temp °C	18	17	16	16	16	21	24	20	21	21	21	19	19	22	17	17	16	14
Feels °C	12	13	13	13	13	18	19	16	17	17	18	17	17	20	14	15	12	6
Swell 1 Height (m) Direction Period (s)	S 10	S 10	NE 6	NE 6	NE 6	S 12	S 11	S 11	S 11	S 10	ENE 6	ENE 6	NE 6	NE 7	NE 7	ENE 6	ENE 6	NE 6
kJ	141	138	120	73	51	132	118	82	81	54	65	69	61	46	36	27	26	10
Swell 2 Height (m) Direction Period (s)	ENE 13	ENE 13	S 10	S 12	S 12	NE 6	ENE 13	ENE 12	E 12	E 12	S 10	S 10	S 10	S 10	S 10	S 9	E 14	E 14
kJ	17	17	136	178	132	33	16	15	12	12	50	30	30	30	28	15	15	15
Swell 3 Height (m) Direction Period (s)	ENE 13	S 18	ENE 13	ENE 13	ENE 13	ENE 13	S 19	—	S 15	S 15	E 12	E 12	E 12	NE 13	E 13	E 4	—	—
kJ	17	6	17	17	17	17	7	—	5	4	12	12	3	6	13	1	—	—
Wind waves Height (m) Direction Period (s)	NE 6	NE 6	NE 6	NE 6	NE 6	NE 6	NE 6	NE 5	NE 6	NE 6	NE 6	—	—	—	SE 2	S 3	S 4	S 6
kJ	150	151	178	120	75	64	32	74	111	86	122	—	—	—	2	6	21	207
Nearest Offshore or Glassy	Garie Beach NSW - Illawarra	Umina Beach NSW - Newcastle	Soldiers Beach NSW - Newcastle	Soldiers Beach NSW - Newcastle	Soldiers Beach NSW - Newcastle	Soldiers Beach NSW - Newcastle	Umina Beach NSW - Newcastle	Umina Beach NSW - Newcastle	Umina Beach NSW - Newcastle	Pelican Beach NSW - Newcastle	Shelley Beach NSW - Newcastle	Soldiers Beach NSW - Newcastle	Soldiers Beach NSW - Newcastle	Backdoor 4 NSW - Newcastle	Old Woman Island - South Side QLD - Sunshine Coast	Werri Point NSW - Illawarra	Tuncurry-North Wall NSW - Port Macquarie	North Haven NSW - Port Macquarie
Rating (10 max)	1	1	2	2	2	1	1	1	1	1	2	1	1	1	1	1	1	1
Distance (km)	110	37	2	2	2	2	37	37	37	3	11	2	2	0	754	176	151	218
Best forecast wave conditions in Newcastle		Umina Point	Crackneck	Crackneck	Crackneck	Forresters	Umina Point	Umina Point	Umina Point	Copacobana Point	Copacobana Point	Crackneck	Crackneck	Little Bombie
Rating (10 max)		1	2	2	2	1	1	1	1	2	2	1	1	1
Best forecast wave conditions in Australia	Luna Park VIC - Far West	Luna Park VIC - Far West	Cyclops WA - Far South	Surfers Point WA - Margaret River	Shipstern Bluff TAS - East Coast	Boneyard NSW - Illawarra	Surfers Point WA - Margaret River	Surfers Point WA - Margaret River	Bunker Bay Bommie WA - Margaret River	Surfers Point WA - Margaret River	Surfers Point WA - Margaret River	Surfers Point WA - Margaret River	Surfers Point WA - Margaret River	Surfers Point WA - Margaret River	Surfers Point WA - Margaret River	Supertubes WA - Margaret River	Surfers Point WA - Margaret River	Surfers Point WA - Margaret River
Rating (10 max)	4	4	4	6	2	2	6	6	4	6	6	5	5	5	5	5	5	5
Header Global	Papatowai New Zealand	Ouano Lefts New Caledonia	Shipwreck Bay-Supertubes New Zealand	Cow Bombie Australia	Fish Boma South Africa	Claptons Coils South Africa	Gas Bay Australia	Cobblestones Australia	Cloudbreak Fiji	Gas Bay Australia	Gas Bay Australia	Glen Eden South Africa	Hole-in-the-Wall South Africa	Cow Bombie Australia	Cobblestones Australia	Supertubes Australia	Gas Bay Australia	Cow Bombie Australia
Rating (10 max)	7	6	5	6	5	5	6	6	5	6	6	7	7	5	5	5	5	5

Map Icons:
Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)
Wind Speed (km/h)

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Backdoor 4 48 hour detailed Surf Forecast

How big are the waves at Backdoor 4 today (14 Sep):

Short Range Forecast

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