Backdoors Surf Forecast

/ SA – Nullarbor (9 breaks) / South Australia (91 breaks) /

Australia (828 breaks)

Surf Forecasts

Backdoors surfForecast / SA – Nullarbor / Australia

12 Day Weather and Surf, issued 8 am Saturday 16 Aug 2025 ACST

Forecast update in hr min s Forecast update imminent

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

Today's Backdoors sea temperature is 15.4° C
(Which is normal for this time of year)

Best Forecast Surf Conditions for Backdoors this week:

The surf forecast for Backdoors over the next 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Tuesday (Aug 19) at 3AM. The primary swell is predicted to be 1.2m and 12s period with a secondary swell of 0.7m and 16s. The wind is predicted to be cross-offshore as the swell arrives.

The most powerful waves expected at Backdoors in the next 12 days are 2.3m 16s and forecast to arrive on Friday (Aug 22) at 3PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.2m 4s period and expected on Thursday (Aug 21) at 6AM.

Wave Type	Time (ACST) & Date	Wave Height & Period
Next good surf (1 star+)	3AM (Tue 19th Aug)	4ft (1.2m) 12s
Best Surf	6AM (Tue 19th Aug)	4ft (1.2m) 15s
Most Powerful	3PM (Fri 22nd Aug)	7.5ft (2.3m) 16s

Table - best surf conditions forecast for Backdoors over the next 12 days.

Hourly 12 Days

Nullarbor Surf

Print Surf Table

Updates in hr min s Forecast update imminent

	Short Range Forecast Light rain (total 2mm), mostly falling on Sat night. Very mild (max 14°C on Sat morning, min 12°C on Mon night). Mainly fresh winds.									Days 3-6 Weather Summary Mostly dry. Warm (max 21°C on Wed afternoon, min 12°C on Tue morning). Winds decreasing (strong winds from the NNE on Wed night, calm by Thu night).
	Saturday 16			Sunday 17			Monday 18			Tuesday 19			Wednesday 20			Thursday 21			Friday 22
	AM	PM	Night	AM	PM	Night	AM	PM	Night	AM	PM	Night	AM	PM	Night	AM	PM	Night	AM	PM	Night
Rating (10 max)	1	0	0	0	0	0	2	1	2	3	4	2	0	0	0	0	0	4	1	2	2
Swell Height Map See all maps
Wave Height (m) & direction (?)	SW	SW	SW	SW	SW	SW	SSW	SW	SW	SW	SW	SW	SW	SW	SW	SW	SW	SW	SW	SW	SW
Period(s) (?)	13	13	13	12	13	13	12	12	12	14	18	16	16	16	15	14	16	15	16	16	15
Wave Graph (?)
Energy (?)	1380	2991	1226	1188	1246	1174	1112	890	637	1142	1074	525	366	302	266	221	451	2122	1724	4223	1418
Wind (km/h)	WSW	WSW	WSW	SSW	SW	S	ESE	SE	E	NNE	NNE	NNE	NNE	N	NNE	N	W	SSW	SE	SSE	SSE
Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy	cross- on	cross- on	cross- on	on	on	cross- on	cross	cross	cross- off	off	off	off	off	off	off	cross- off	cross	glass	cross- on	cross- on	cross- on
High Tide / height (m)		1:52PM 0.83		3:32AM 0.91	1:03PM 0.84		3:39AM 12:16PM 0.78 0.94		2:51AM 0.65	12:01PM 1.06		1:29AM 0.60	12:06PM 1.16		12:48AM 0.64	12:17PM 1.24		12:36AM 0.73	12:30PM 1.30		12:39AM 0.84
Low Tide / height (m)			8:28PM 0.13	8:32AM 0.67		8:15PM 0.15	6:58AM 0.72		7:54PM 0.17	5:25AM 0.62		7:31PM 0.18	5:19AM 0.47		7:15PM 0.18	5:34AM 0.33		7:07PM 0.16	5:54AM 0.20		7:06PM 0.14

	Saturday 16			Sunday 17			Monday 18			Tuesday 19			Wednesday 20			Thursday 21			Friday 22
Sunrise	7:13	-	-	7:13	-	-	7:11	-	-	7:11	-	-	7:09	-	-	7:09	-	-	7:07	-	-
Sunset	-	6:09	-	-	6:10	-	-	6:12	-	-	6:12	-	-	6:13	-	-	6:14	-	-	6:14	-

Rain (mm)	-	-	2	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Temp. °C	14	14	14	13	14	14	14	14	13	15	18	17	18	21	18	20	20	15	16	15	14
Feels °C (?)	8	8	9	6	7	8	10	10	9	8	11	10	8	12	9	11	14	13	13	12	11

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

Recent Eyeball Surf Reports for SA - Nullarbor

Wind Update The wind is still cross-on at Backdoors (light winds from the WSW at Thevenard Ntc Aws 63 km from Backdoors). A 1.2m groundswell from the SW
1 hour 10 minutes ago Backdoors

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The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Backdoors 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.

Information about the Backdoors Surf forecast

The above surf forecast table for Backdoors provides essential information for determining whether the surfing conditions will be good over the next 12 days. A general guide to surfing at Backdoors can be found by selecting the local surf guide option on the grey menu. Our Backdoors surf forecast is unique since it includes wave energy (power) that defines the real feel of the surf rather than just the height or the period. If you surf the same spot (Backdoors) regularly then make a mental note of the wave energy from the surf forecast table each time you go. Very soon you may start to choose your surf days based on the wave energy alone combined with our forecast of favourable offshore wind conditions. Our star ratings will help here and of course you will also find the usual wave height and period predictions on our surf forecasts as well as a full break down of the swell components under our advanced users option (to reveal that, click the little Einstein character under the tide times).

Further information to help with frequently asked questions about our surf forecast for Backdoors may be found under the help tab on the top menu and also by moving your mouse over the question marks on the surf forecast table itself. Please always bear in mind that the forecast is for near-shore open water and local factors at each surf break influence the actual breaking wave height, such as the beach / reef profile, water depths offshore and shelter.

Are you planning a holiday in Nullarbor? If you are looking for accommodation near Backdoors, camping, hotels and holiday cottages in Nullarbor, consider staying in Thevenard which is 64 km (40 miles) away.