Augusta Rivermouth 48 hour detailed Surf Forecast

Lat Long: 34.33° S 115.16° E

Issued: 7 am 21 Aug 2026 (local time)

Forecast update in hr min

Today's Augusta Rivermouth sea temperature is

18.7° C

Augusta Rivermouth 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 Augusta Rivermouth today (21 Aug):

Morning surf: Morning surf (21 Aug, local time) - 11ft (3.5m), 15s period with SW swell.
Afternoon surf: Afternoon surf (21 Aug, local time) - 11ft (3.5m), 15s period with SW swell.
Evening surf: Evening surf (21 Aug, local time) - 10ft (3.0m), 15s period with SW swell.

The current surf forecast for Augusta Rivermouth at 12PM is: 3.5m 15s primary swell from a Southwest direction and 0.5m 23s secondary swell from a Southwest direction (forecast issued at 07:00am August 21). The wind direction is predicted to be glassy and the swell rating is 11.

Time (AWST) & Date	Wave Height	Wave Period
Morning (21 Aug)	11ft (3.5m)	15s
Afternoon (21 Aug)	11ft (3.5m)	15s
Evening (21 Aug)	10ft (3.0m)	15s

Table - waves today at Augusta Rivermouth. (Swell directed towards the surf break)

	Short Range Forecast Some drizzle, heaviest during Sun morning. Very mild (max 16°C on Fri afternoon, min 12°C on Sun night). Wind will be generally light.
	Friday 21							Saturday 22								Sunday 23
	5 AM	8 AM	11 AM	2 PM	5 PM	8 PM	11 PM	2 AM	5 AM	8 AM	11 AM	2 PM	5 PM	8 PM	11 PM	2 AM	5 AM	8 AM	11 AM	2 PM	5 PM	8 PM	11 PM
Rating (10 max)	!	!	!	!	!	4	4	!	!	5	2	1	2	2	2	2	3	1	2	1	2	!	!
Swell Height Map See all maps
Wave Height (m) Direction Period (s)	SW 15	SW 15	SW 15	SW 15	SW 15	SW 15	SW 14	SW 17	SW 17	SW 16	SW 16	SW 16	SW 16	SW 15	SW 14	SW 14	SW 14	SW 14	SW 13	SW 13	SW 13	SW 16	SW 16
Wave Graph
kJ	5894	5529	5454	5258	5036	4251	3484	7468	6479	4961	4356	3905	3288	2457	2061	1787	2155	2304	2305	1915	2180	5711	6129
Wind (km/h)	NW	NE	NNE	SW	SSW	SE	E	ESE	E	S	SSW	SSW	SSW	SSW	SSW	SW	SW	S	SSW	SSW	SSW	SSW	SW
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy	glassy	glassy	glassy	cross-on	cross-on	on	cross-on	cross-on	cross-on	glassy	cross-on	cross-on	cross-on	cross-on	cross-on	cross-on	cross	cross-on	cross-on	cross-on	cross-on	cross-on	cross-on
High Tide								1:58AM0.62m		7:35AM0.64m									8:06AM0.71m
Low Tide					4:16PM0.23m				3:15AM0.62m				4:35PM0.23m								4:51PM0.24m


	6:52	—	—	—	—	—	—	—	6:50	—	—	—	—	—	—	—	6:50	—	—	—	—	—	—
	—	—	—	—	5:52	—	—	—	—	—	—	—	5:52	—	—	—	—	—	—	—	5:53	—	—
mm	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	1	—	—	—	—	—
Temp °C	15	14	15	16	15	15	14	13	13	13	15	15	14	14	14	14	14	14	13	14	14	14	13
Feels °C	14	13	14	14	12	13	12	11	12	13	12	11	11	11	11	12	12	10	10	10	11	11	11
Swell 1 Height (m) Direction Period (s)	SW 15	SW 15	SW 15	SW 15	SW 15	SW 15	SW 14	SW 17	SW 17	SW 16	SW 16	SW 16	SW 16	SW 15	SW 14	SW 14	SW 14	SW 14	SW 13	SW 13	SW 13	SW 16	SW 16
kJ	5894	5529	5454	5258	5036	4251	3484	7468	6479	4961	4356	3905	3288	2457	2061	1787	2155	2304	2305	1915	2180	5711	6129
Swell 2 Height (m) Direction Period (s)	SW 26	SW 24	SW 24	SW 22	SW 20	SW 19	SW 18	SSW 18	—	—	—	—	—	SW 22	SW 20	SW 20	SW 20	SW 18	SW 18	SW 17	SW 16	SW 16	—
kJ	26	88	273	379	1451	2349	2812	2894	—	—	—	—	—	18	61	60	60	383	447	1252	1482	2434	—
Swell 3 Height (m) Direction Period (s)	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
kJ	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
Wind waves Height (m) Direction Period (s)	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
kJ	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
Nearest Offshore or Glassy	Deepdene WA - Margaret River	Deepdene WA - Margaret River	Deepdene WA - Margaret River	Hussas WA - Margaret River	Conto Springs WA - Margaret River	Deepdene WA - Margaret River	Deepdene WA - Margaret River	Deepdene WA - Margaret River	Deepdene WA - Margaret River	Augusta Rivermouth WA - Margaret River	Injidup Point WA - Margaret River	Peppermint Grove Reef WA - Perth South	Cheynes Point WA - Far South	Injidup Point WA - Margaret River	Injidup Point WA - Margaret River	Conto Springs WA - Margaret River	Huzzawouie (Huzzas) WA - Margaret River	Injidup Point WA - Margaret River	Injidup Point WA - Margaret River	Hussas WA - Margaret River	Conto Springs WA - Margaret River	Conto Springs WA - Margaret River	Conto Springs WA - Margaret River
Rating (10 max)	5	5	5	5	6	5	5	5	5	5	4	3	3	4	4	4	4	4	4	5	5	6	6
Distance (km)	5	5	5	55	24	5	5	5	5	0	72	96	334	72	72	24	54	72	72	55	24	24	24
Best forecast wave conditions in Margaret River	Surfers Point	Surfers Point	Cobblestones	Supertubes	Yallingup Beach	Surfers Point	Redgate	Surfers Point	Surfers Point	Surfers Point	The Farm			Injidup Point	Injidup Point	Injidup Point	Injidup Point	Injidup Point	Injidup Point	Hussas	Conto Springs	Conto Springs	Supertubes
Rating (10 max)	6	6	6	5	7	7	7	6	7	6	4			4	4	4	4	4	4	5	5	6	6
Best forecast wave conditions in Australia	Surfers Point WA - Margaret River	Surfers Point WA - Margaret River	Cobblestones WA - Margaret River	Cathedral Rock VIC - Cape Otway	Yallingup Beach WA - Margaret River	Surfers Point WA - Margaret River	Redgate WA - Margaret River	Surfers Point WA - Margaret River	Surfers Point WA - Margaret River	Surfers Point WA - Margaret River	Point Roadnight VIC - Torquay	Cyclops WA - Far South	Cyclops WA - Far South	Bancoora VIC - Torquay	Luna Park VIC - Far West	Luna Park VIC - Far West	Luna Park VIC - Far West	Luna Park VIC - Far West	Point Lonsdale VIC - Torquay	Bruny Island - Jawbones TAS - East Coast	Luna Park VIC - Far West	Conto Springs WA - Margaret River	Supertubes WA - Margaret River
Rating (10 max)	6	6	6	5	7	7	7	6	7	6	7	5	5	4	8	7	7	6	4	5	6	6	6
Header Global	Cobblestones Australia	Cobblestones Australia	Cobblestones Australia	Benkunqut Indonesia	Benkunqut Indonesia	Gas Bay Australia	Cobblestones Australia	Cobblestones Australia	Cobblestones Australia	Point Roadnight Australia	Point Roadnight Australia	Point Roadnight Australia	Cyclops Australia	Cathedral Rock Australia	Luna Park Australia	Easter Reef Australia	Easter Reef Australia	Easter Reef Australia	Benkunqut Indonesia	Asu Indonesia	Easter Reef Australia	Easter Reef Australia	Supertubes Australia
Rating (10 max)	6	6	6	5	5	7	6	6	7	7	7	7	5	5	8	7	7	6	5	4	6	5	6

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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Augusta Rivermouth 48 hour detailed Surf Forecast

How big are the waves at Augusta Rivermouth today (21 Aug):

Short Range Forecast

Latest Updates

Summer's Short. Life Is Long.

Roadsurfing in the Basque country

Six Sun-Soaked Summer Surf Spots: Backed by 20 years of Swell and Wind Stats (and with our 20% Summer Subscription Sale)

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How Our WaveFinder Tool Makes Forecasting Easier Than Ever Before

FREE! Surf-Forecast.com widget for your website