Backdoor 4 48 hour detailed Surf Forecast

Lat Long: 33.28° S 151.57° E

Issued: 3 am 15 Jul 2026 (local time)

Forecast update in hr min

Today's Backdoor 4 sea temperature is

18.7° 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 (15 Jul):

Morning surf: Morning surf (15 Jul, local time) - 6.5ft (2.0m), 7s period with S swell.
Afternoon surf: Afternoon surf (15 Jul, local time) - 10ft (3.0m), 10s period with S swell.
Evening surf: Evening surf (15 Jul, local time) - 8ft (2.4m), 8s period with S swell.

The current surf forecast for Backdoor 4 at 9AM is: 2.0m 7s primary swell from a South direction and 0.4m 11s secondary swell from a South direction, 0.1m 10s secondary swell from a East direction (forecast issued at 03:00am July 15). The wind direction is predicted to be cross-offshore.

Time (AEST) & Date	Wave Height	Wave Period
Morning (15 Jul)	6.5ft (2.0m)	7s
Afternoon (15 Jul)	10ft (3.0m)	10s
Evening (15 Jul)	8ft (2.4m)	8s

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

	Short Range Forecast Heavy rain (total 22mm), heaviest during Thu afternoon. Very mild (max 17°C on Fri morning, min 12°C on Wed night). Mainly fresh winds.
	Wednesday 15								Thursday 16								Friday 17
	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)	0	0	0	0	!	!	!	!	!	!	0	!	!	1	2	2	0	0	1	1	1	1	1	2
Swell Height Map See all maps
Wave Height (m) Direction Period (s)	S 15	S 11	S 11	S 7	S 10	S 9	S 9	S 8	S 7	S 7	S 7	S 8	S 8	S 8	S 8	S 8	S 8	S 7	S 7	S 7	S 6	E 6	E 6	ESE 6
Wave Graph
kJ	4	22	38	466	1478	1526	1082	703	524	515	457	593	588	441	299	223	160	127	117	91	68	73	76	123
Wind (km/h)	SW	SW	SW	SSW	SSW	SSW	SSW	S	S	SSW	SSW	S	SSE	SE	SE	SE	SE	SE	SE	S	SSE	ESE	SE	SE
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy	cross-off	cross-off	cross-off	cross-off	cross-off	off	off	off	off	cross-off	cross-off	off	cross-off	cross-off	cross-off	cross-off	cross-off	cross-off	cross-off	off	cross-off	cross-off	cross-off	cross-off
High Tide				8:55AM1.18m				8:54PM1.85m				9:44AM1.21m				9:42PM1.79m					10:32AM1.23m
Low Tide		2:56AM-0.06m				2:23PM0.23m				3:43AM-0.06m				3:15PM0.24m					4:28AM-0.02m				4:07PM0.28m


	—	6:54	—	—	—	—	—	—	—	6:54	—	—	—	—	—	—	—	6:54	—	—	—	—	—	—
	—	—	—	—	—	5:02	—	—	—	—	—	—	—	5:04	—	—	—	—	—	—	—	5:05	—	—
mm	—	—	—	—	—	—	—	1	1	—	1	2	3	4	3	2	2	1	—	—	1	1	—	—
Temp °C	13	13	13	15	14	15	15	15	15	14	12	14	15	16	16	16	15	16	16	16	17	16	17	16
Feels °C	8	8	8	8	7	8	9	10	8	9	7	9	11	13	14	14	12	13	13	14	15	14	14	13
Swell 1 Height (m) Direction Period (s)	SSW 10	S 11	S 11	—	—	—	—	S 15	S 15	S 15	S 15	S 15	S 18	S 8	S 8	S 8	S 8	S 7	S 7	S 7	S 6	E 6	E 6	E 6
kJ	10	22	38	—	—	—	—	5	5	5	4	4	25	441	299	223	160	127	117	91	68	73	76	81
Swell 2 Height (m) Direction Period (s)	S 15	E 10	E 10	—	—	—	—	—	—	—	—	S 18	S 18	S 18	S 18	S 18	E 8	E 8	E 8	S 16	E 8	S 6	S 8	S 8
kJ	4	2	2	—	—	—	—	—	—	—	—	7	25	25	24	25	10	10	18	21	18	39	21	66
Swell 3 Height (m) Direction Period (s)	E 10	E 10	—	—	—	—	—	—	—	—	—	—	SE 6	S 14	S 13	E 8	S 18	S 18	S 18	S 16	S 15	S 9	S 11	S 11
kJ	2	2	—	—	—	—	—	—	—	—	—	—	14	15	13	5	26	58	56	46	18	23	23	23
Wind waves Height (m) Direction Period (s)	SSW 5	SSW 6	S 6	S 7	S 10	S 9	S 9	S 8	S 7	S 7	S 7	S 8	S 8	ESE 6	ESE 6	ESE 6	ESE 6	ESE 6	ESE 6	ESE 6	ESE 6	—	S 6	ESE 6
kJ	61	89	132	466	1478	1526	1082	703	524	515	457	593	588	51	48	47	45	45	45	56	59	—	27	123
Nearest Offshore or Glassy	Lurline Bay NSW - Sydney South Coast	Terrigal Haven NSW - Newcastle	Terrigal Haven NSW - Newcastle	Sandon Point NSW - Illawarra	Plantation Point NSW - South Coast	Warriewood NSW - Sydney North Coast	Warriewood NSW - Sydney North Coast	JD Reef NSW - Newcastle	Warriewood NSW - Sydney North Coast	Boat Ramp NSW - Newcastle	JD Reef NSW - Newcastle	Saltwater NSW - Port Macquarie	Anna Bay-Morna Point NSW - Newcastle	Mollymook Beach NSW - South Coast	Backdoor 4 NSW - Newcastle	Backdoor 4 NSW - Newcastle	Little Bombie NSW - Newcastle	Newport Reef NSW - Sydney North Coast	Backdoor 4 NSW - Newcastle	Backdoor 4 NSW - Newcastle	Backdoor 4 NSW - Newcastle	Backdoor 4 NSW - Newcastle	Backdoor 4 NSW - Newcastle	Backdoor 4 NSW - Newcastle
Rating (10 max)	1	1	1	3	2	4	3	3	2	2	2	2	2	1	2	2	1	2	1	1	1	1	1	2
Distance (km)	79	21	21	135	215	52	52	1	52	0	1	169	72	248	0	0	0	48	0	0	0	0	0	0
Best forecast wave conditions in Newcastle		Umina Point	Shallows					JD Reef		JD Reef	JD Reef		One Mile Beach		JD Reef	JD Reef	JD Reef		JD Reef	JD Reef	JD Reef	Newcastle -The Harbour	JD Reef	JD Reef
Rating (10 max)		1	1					3		3	2		2		2	2	2		2	2	1	1	1	2
Best forecast wave conditions in Australia	Cyclops WA - Far South	Ethel Wreck SA - Yorke Peninsula	Ethel Wreck SA - Yorke Peninsula	Ethel Wreck SA - Yorke Peninsula	Bells Beach - Rincon VIC - Torquay	Bells Beach - Rincon VIC - Torquay	Cyclops WA - Far South	Ethel Wreck SA - Yorke Peninsula	Tessellated Pavements TAS - East Coast	Shipstern Bluff TAS - East Coast	Shipstern Bluff TAS - East Coast	Ethel Wreck SA - Yorke Peninsula	Cathedral Rock VIC - Cape Otway	Ethel Wreck SA - Yorke Peninsula	Luna Park VIC - Far West	Surfers Point WA - Margaret River	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	Ethel Wreck SA - Yorke Peninsula	Luna Park VIC - Far West	Luna Park VIC - Far West
Rating (10 max)	4	4	4	4	4	4	4	4	6	5	5	4	5	4	6	5	5	5	6	6	6	4	5	5
Header Global	Fox River New Zealand	Fox River New Zealand	Cathedral Rock Australia	Cathedral Rock Australia	Asu Indonesia	Anawhata Road (Oaonui) New Zealand	Balnarring Point Australia	Asu Indonesia	Tessellated Pavements Australia	Cape St Martin South Africa	Hell South Africa	Fish Boma South Africa	Boneyards South Africa	Boneyards South Africa	Luna Park Australia	Cobblestones Australia	Easter Reef Australia	Dunedin - Bobs Beach New Zealand	Easter Reef Australia	Easter Reef Australia	Easter Reef Australia	Papatowai New Zealand	Luna Park Australia	Cannibal Bay New Zealand
Rating (10 max)	6	7	7	7	4	5	4	4	6	5	5	5	5	5	6	5	5	9	6	6	6	7	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)

Latest Updates

Ben Mondy

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.

Backdoor 4 48 hour detailed Surf Forecast

How big are the waves at Backdoor 4 today (15 Jul):

Short Range Forecast

Latest Updates

How Our WaveFinder Tool Makes Forecasting Easier Than Ever Before

The Five Best Forecasts For International Surfing Day 2026

Best Surf Travel Deals & Discounts For 2026 To Help Make Surf Travel Cheaper

Let Our Surf Alerts Do All Your Forecast Heavy Lifting

Talking To Maddie Meddings on New Film Undercurrents. (And Then Watch It!)

FREE! Surf-Forecast.com widget for your website