Back Beach Surf Forecast

/ WA – Perth City (29 breaks) / Western Australia (159 breaks) /

Australia (828 breaks) / Lat Long: (30.94° S 115.28° E)

Surf Forecasts:

Back Beach surfForecast / WA – Perth City / Australia

12 Day Weather and Surf, issued 7 pm Saturday 13 Sep 2025 AWST

Forecast update in hr min s Forecast update imminent

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

Today's Back Beach sea temperature is 17.9° C
(Which is 1.0°C colder than average for this time of year)

Best Forecast Surf Conditions for Back Beach this week:

The surf forecast for Back Beach over the next 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Monday (Sep 15) at 8AM. The primary swell is predicted to be 5.0m and 15s period with a secondary swell of 5.0m and 15s. The wind is predicted to be onshore as the swell arrives.

The most powerful waves expected at Back Beach in the next 12 days are 5.0m 15s and forecast to arrive on Monday (Sep 15) at 8AM. Winds are predicted to be onshore at the time the swell arrives.

Wave Type	Time (AWST) & Date	Wave Height & Period
Next good surf (1 star+)	8AM (Mon 15th Sep)	16ft (5.0m) 15s
Best Surf	8AM (Mon 15th Sep)	16ft (5.0m) 15s
Most Powerful	8AM (Mon 15th Sep)	16ft (5.0m) 15s

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

Updates in hr min s Forecast update imminent

12 Days Hourly

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	Short Range Forecast Moderate rain (total 13mm), heaviest on Sat night. Very mild (max 18°C on Sat night, min 14°C on Sun night). Winds decreasing (near gales from the WNW on Sun morning, calm by Tue morning).										Days 3-6 Weather Summary Light rain (total 4mm), mostly falling on Wed afternoon. Very mild (max 18°C on Wed afternoon, min 15°C on Tue night). Winds increasing (light winds from the WNW on Tue night, fresh winds from the WNW by Wed afternoon).
		Sunday 14			Monday 15			Tuesday 16			Wednesday 17			Thursday 18			Friday 19			Sat 20
	Night	AM	PM	Night	AM	PM	Night	AM	PM	Night	AM	PM	Night	AM	PM	Night	AM	PM	Night	AM	PM
Rating (10 max)	0	0	0	0	0	0	!	!	2	2	1	0	0	1	!	!	!	!	!	2	0
Swell Height Map See all maps
Wave Height (m) & direction (?)	WSW	W	WSW	WSW	WSW	WSW	WSW	WSW	WSW	WSW	WSW	WSW	WSW	WSW	WSW	WSW	WSW	WSW	WSW	WSW	SW
Period(s) (?)	13	9	13	14	15	15	14	13	13	12	11	11	10	12	14	14	16	15	15	14	14
Wave Graph (?)
kJ (?)	852	2308	8606	9473	9800	8784	5875	3257	2081	1062	1176	1507	983	1553	3842	3714	4920	5517	4057	2948	2356
Wind (km/h)	WNW	WNW	W	SW	SW	SW	S	W	WNW	NW	WNW	WSW	SSW	SSW	SW	SSW	S	S	SSE	SSE	S
Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy	cross- on	cross- on	cross- on	on	on	on	cross- on	glass	cross- on	cross	cross	on	on	on	on	on	cross- on	cross- on	cross	cross	cross- on
High Tide / height (m)	12:50AM 0.63			2:19AM 0.61			4:25AM 0.60				5:53AM 0.59			6:57AM 0.58			7:47AM 0.56		10:22PM 0.33	8:29AM 0.53
Low Tide / height (m)		1:53PM 0.04				2:30PM 0.01			3:03PM 0.02			3:30PM 0.05			3:49PM 0.09			3:59PM 0.14	1:29AM 0.32		3:57PM 0.19

		Sunday 14			Monday 15			Tuesday 16			Wednesday 17			Thursday 18			Friday 19			Sat 20
Sunrise	-	6:18	-	-	6:18	-	-	6:16	-	-	6:16	-	-	6:13	-	-	6:13	-	-	6:11	-
Sunset	-	-	6:09	-	-	6:09	-	-	6:10	-	-	6:10	-	-	6:12	-	-	6:12	-	-	6:13

Rain (mm)	4	1	2	3	2	-	1	-	-	-	-	3	-	-	-	-	1	-	-	-	-
Temp. °C	18	18	16	15	14	15	14	15	15	15	17	18	17	15	15	16	17	17	16	16	18
Feels °C (?)	15	9	5	6	7	8	9	13	11	12	10	12	10	10	10	12	15	14	13	12	14

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 WA - Perth City

Wind Update Continuing clean conditions at Back Beach (light winds from the E at Lancelin(Defence) 13 km from Back Beach). 2.0m 8s swell from the W with a 1.4m 13s groundswell from the WSW. 2 swells combining so expect closeout sets.
1 hour 29 minutes ago Back Beach

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1 h 29 min ago

7 km/h

Clean

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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 Back Beach 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 Back Beach Surf forecast

The above surf forecast table for Back Beach provides essential information for determining whether the surfing conditions will be good over the next 12 days. A general guide to surfing at Back Beach can be found by selecting the local surf guide option on the grey menu. Our Back Beach 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 (Back Beach) 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 Back Beach 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 Perth City Coast? If you are looking for accommodation near Back Beach, camping, hotels and holiday cottages in Perth City Coast, consider staying in Perth which is 125 km (78 miles) away.