Backdoor 4 48 hour detailed Surf Forecast

Lat Long: 33.28° S 151.57° E

Issued: 3 am 16 Jul 2026 (local time)

Forecast update in hr min

Today's Backdoor 4 sea temperature is

18.4° 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 (16 Jul):

Morning surf: Morning surf (16 Jul, local time) - 7.5ft (2.3m), 7s period with S swell.
Afternoon surf: Afternoon surf (16 Jul, local time) - 7ft (2.1m), 8s period with S swell.
Evening surf: Evening surf (16 Jul, local time) - 5ft (1.6m), 8s period with S swell.

The current surf forecast for Backdoor 4 at 6AM is: 2.2m 7s primary swell from a South direction and 0.1m 15s secondary swell from a South direction (forecast issued at 03:00am July 16). The wind direction is predicted to be cross-offshore and the swell rating is 11.

Time (AEST) & Date	Wave Height	Wave Period
Morning (16 Jul)	7.5ft (2.3m)	7s
Afternoon (16 Jul)	7ft (2.1m)	8s
Evening (16 Jul)	5ft (1.6m)	8s

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

	Short Range Forecast Heavy rain (total 21mm), heaviest during Thu afternoon. Very mild (max 17°C on Sat morning, min 14°C on Thu morning). Winds decreasing (fresh winds from the SSW on Thu morning, calm by Fri morning).
	Thursday 16								Friday 17								Saturday 18
	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
Rating (10 max)	!	!	!	!	!	!	2	2	2	2	2	1	2	1	1	0	0	1	1	1	1	1	2	2
Swell Height Map See all maps
Wave Height (m) Direction Period (s)	S 7	S 7	S 7	S 8	S 8	S 8	S 8	S 8	S 8	S 7	S 7	S 7	E 7	E 7	E 7	E 7	E 7	ESE 7	ESE 7	ESE 7	ESE 8	E 8	E 8	E 10
Wave Graph
kJ	524	515	510	588	698	569	408	270	187	127	94	74	134	131	131	131	127	197	206	225	240	287	411	736
Wind (km/h)	S	SSW	SW	SSW	S	SSE	SE	ESE	ESE	SSE	SSW	SSW	SE	SSE	SE	SSE	SSE	SSE	SSE	SE	SE	SSE	SE	SE
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy	off	off	cross-off	cross-off	off	cross-off	cross-off	cross-off	cross-off	cross-off	cross-off	glassy	cross-off	cross-off	cross-off	cross-off	cross-off	cross-off	cross-off	cross-off	cross-off	cross-off	cross-off	cross-off
High Tide				9:44AM1.21m				9:42PM1.79m					10:32AM1.23m				10:29PM1.67m				11:20AM1.25m
Low Tide		3:43AM-0.06m				3:15PM0.24m					4:28AM-0.02m				4:07PM0.28m				5:10AM0.04m				5:01PM0.35m


	—	6:54	—	—	—	—	—	—	—	6:54	—	—	—	—	—	—	—	6:54	—	—	—	—	—	—
	—	—	—	—	—	5:04	—	—	—	—	—	—	—	5:05	—	—	—	—	—	—	—	5:05	—	—
mm	—	—	1	1	3	5	3	1	2	1	1	1	1	—	—	—	1	1	—	—	—	—	—	—
Temp °C	15	14	12	14	15	15	16	16	16	15	14	14	16	16	16	16	16	16	16	16	17	17	17	17
Feels °C	9	8	7	8	11	12	14	13	14	13	13	13	14	13	13	12	12	12	12	11	13	13	12	13
Swell 1 Height (m) Direction Period (s)	S 15	S 15	S 15	S 18	S 18	S 8	S 8	S 8	S 8	S 7	S 7	S 7	S 6	S 6	E 7	E 7	E 7	S 10	S 10	S 10	S 10	E 8	E 8	E 10
kJ	5	4	5	6	6	569	408	270	187	127	94	74	66	39	131	131	127	54	53	50	48	287	411	736
Swell 2 Height (m) Direction Period (s)	—	—	—	S 18	S 18	S 18	S 18	S 18	E 8	E 8	E 8	E 8	S 15	S 9	S 6	S 8	S 11	S 21	S 21	S 21	S 20	S 10	S 10	S 9
kJ	—	—	—	7	25	25	24	25	12	21	21	31	18	23	26	21	55	36	35	34	32	46	45	41
Swell 3 Height (m) Direction Period (s)	—	—	—	—	—	S 13	S 13	E 8	S 18	S 18	S 18	S 16	S 15	S 11	S 8	S 11	S 21	—	—	S 19	—	S 20	S 19	S 19
kJ	—	—	—	—	—	4	3	5	25	58	56	21	40	21	21	22	9	—	—	7	—	30	66	64
Wind waves Height (m) Direction Period (s)	S 7	S 7	S 7	S 8	S 8	ESE 6	ESE 6	ESE 6	ESE 6	ESE 6	ESE 6	ESE 6	E 7	E 7	—	S 6	S 6	ESE 7	ESE 7	ESE 7	ESE 8	—	—	S 4
kJ	524	515	510	588	698	37	52	48	50	61	66	64	134	131	—	25	21	197	206	225	240	—	—	10
Nearest Offshore or Glassy	JD Reef NSW - Newcastle	JD Reef NSW - Newcastle	Boat Ramp NSW - Newcastle	Kiama Pool NSW - Illawarra	Anna Bay-Morna Point NSW - Newcastle	Shallows NSW - Newcastle	Backdoor 4 NSW - Newcastle	Backdoor 4 NSW - Newcastle	Backdoor 4 NSW - Newcastle	Backdoor 4 NSW - Newcastle	Backdoor 4 NSW - Newcastle	Backdoor 4 NSW - Newcastle	Backdoor 4 NSW - Newcastle	Terrigal Haven NSW - Newcastle	Backdoor 4 NSW - Newcastle	Terrigal Haven NSW - Newcastle	Little Avalon NSW - Sydney North Coast	Little Avalon NSW - Sydney North Coast	Little Avalon NSW - Sydney North Coast	Little Avalon NSW - Sydney North Coast	Little Avalon NSW - Sydney North Coast	Kiama Pool NSW - Illawarra	Bellambi Point NSW - Illawarra	Little Avalon NSW - Sydney North Coast
Rating (10 max)	3	3	2	2	2	2	2	2	2	2	2	1	2	1	1	1	1	1	1	1	1	1	1	3
Distance (km)	1	1	0	168	72	36	0	0	0	0	0	0	0	21	0	21	45	45	45	45	45	168	135	45
Best forecast wave conditions in Newcastle	JD Reef	JD Reef	JD Reef		Box Beach	Anna Bay-Morna Point	JD Reef	Backdoor 4	Backdoor 4	JD Reef	JD Reef	JD Reef	JD Reef	Macmasters Point	JD Reef	Newcastle -The Harbour	Newcastle -The Harbour
Rating (10 max)	3	3	3		2	2	2	2	2	2	2	1	2	1	1	1	1
Best forecast wave conditions in Australia	Shipstern Bluff TAS - East Coast	Shipstern Bluff TAS - East Coast	Shipstern Bluff TAS - East Coast	Ethel Wreck SA - Yorke Peninsula	Ethel Wreck SA - Yorke Peninsula	Ethel Wreck SA - Yorke Peninsula	Ethel Wreck SA - Yorke Peninsula	Luna Park VIC - Far West	Luna Park VIC - Far West	Shipstern Bluff TAS - East Coast	Luna Park VIC - Far West	Luna Park VIC - Far West	Luna Park VIC - Far West	Ethel Wreck SA - Yorke Peninsula	Luna Park VIC - Far West	Luna Park VIC - Far West	Luna Park VIC - Far West	Luna Park VIC - Far West	Luna Park VIC - Far West	Luna Park VIC - Far West	Luna Park VIC - Far West	Luna Park VIC - Far West	Luna Park VIC - Far West	Luna Park VIC - Far West
Rating (10 max)	5	5	5	4	4	4	4	5	5	5	6	6	6	4	5	5	5	5	4	4	4	4	4	4
Header Global	Shingles New Zealand	Shipstern Bluff Australia	Hell South Africa	Gerickes Point South Africa	Boneyards South Africa	Boneyards South Africa	Dunedin - Cob Cottage New Zealand	Easter Reef Australia	Otago Peninsula - Allans Beach New Zealand	Lebu Chile	Easter Reef Australia	Dunedin - Bobs Beach New Zealand	Easter Reef Australia	Papatowai New Zealand	Papatowai New Zealand	Otago Peninsula - Allans Beach New Zealand	Dunedin - Kuri Bush New Zealand	Dunedin - Cob Cottage New Zealand	Dunedin - Kuri Bush New Zealand	Seconds (White Rock) New Zealand	Papatowai New Zealand	Papatowai New Zealand	Papatowai New Zealand	Papatowai New Zealand
Rating (10 max)	5	5	5	5	5	5	7	5	5	6	6	9	6	8	9	8	7	6	6	8	9	9	9	7

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 (16 Jul):

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