Grunters 48 hour detailed Surf Forecast

Lat Long: 34.01° S 114.99° E

Issued: 1 am 21 Sep 2026 (local time)

Forecast update in hr min

Today's Grunters sea temperature is

18.1°C

Grunters 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 Grunters today (21 Sep):

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

The current surf forecast for Grunters at 7AM is: 3.5m 15s primary swell from a Southwest direction (forecast issued at 01:00am September 21). The wind direction is predicted to be glassy and the swell rating is 6.

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

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

	Short Range Forecast Mostly dry. Very mild (max 16°C on Wed morning, min 13°C on Mon night). Wind will be generally light.
	Monday 21								Tuesday 22								Wednesday 23
	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	2 AM	5 AM	8 AM	11 AM	2 PM	5 PM	8 PM	11 PM
Rating (10 max)	6	6	6	3	3	4	3	4	4	4	5	4	3	3	3	4	4	4	4	2	1	2	2	3
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 15	SW 15	SW 14	SW 14	SW 14	SW 14	SW 14	SW 14	SW 13	SW 13	SW 13	SW 13	SW 13	SW 13	SW 12	SW 12	SW 12	SW 12
Wave Graph
kJ	5659	5454	5036	4915	4402	3970	3424	3051	2801	2724	3067	3544	3781	3159	2782	2699	2399	2154	1892	1651	1575	1319	1010	964
Wind (km/h)	NE	W	SW	WSW	WSW	SW	S	SSE	E	E	E	W	WSW	SSW	SSE	ESE	ESE	ESE	SSE	WSW	WSW	WSW	WSW	WSW
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy	glassy	glassy	glassy	on	on	on	cross-on	cross	cross-off	cross-off	glassy	cross-on	on	cross-on	cross	cross-off	cross-off	glassy	glassy	on	on	on	on	on
High Tide			6:07AM0.62m								6:59AM0.64m								7:42AM0.64m					10:29PM0.40m
Low Tide						3:31PM0.11m								3:43PM0.13m								3:51PM0.16m


	—	6:11	—	—	—	—	—	—	—	6:09	—	—	—	—	—	—	—	6:09	—	—	—	—	—	—
	—	—	—	—	—	6:15	—	—	—	—	—	—	—	6:15	—	—	—	—	—	—	—	6:15	—	—
mm	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
Temp °C	12	13	14	15	14	15	15	14	13	13	13	15	15	15	15	14	14	13	14	16	15	15	15	15
Feels °C	12	13	14	13	12	14	13	12	11	10	12	13	13	12	13	13	13	12	14	14	12	12	13	13
Swell 1 Height (m) Direction Period (s)	SW 15	SW 15	SW 15	SW 15	SW 15	SW 15	SW 15	SW 15	SW 14	SW 14	SW 14	SW 14	SW 14	SW 14	SW 13	SW 13	SW 13	SW 13	SW 13	SW 13	SW 12	SW 12	SW 12	SW 12
kJ	5659	5454	5036	4915	4402	3970	3424	3051	2801	2724	3067	3544	3781	3159	2782	2699	2399	2154	1892	1651	1575	1319	1010	964
Swell 2 Height (m) Direction Period (s)	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	SW 18	—	S 10	WSW 16
kJ	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	49	—	94	441
Swell 3 Height (m) Direction Period (s)	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	SW 16	S 9
kJ	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	211	83
Wind waves Height (m) Direction Period (s)	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
kJ	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
Nearest Offshore or Glassy	Grunters WA - Margaret River	Grunters WA - Margaret River	Grunters WA - Margaret River	Hussas WA - Margaret River	Hussas WA - Margaret River	Hussas WA - Margaret River	Conto Springs WA - Margaret River	Gas Bay WA - Margaret River	Grunters WA - Margaret River	Grunters WA - Margaret River	Grunters WA - Margaret River	Hussas WA - Margaret River	Hussas WA - Margaret River	Conto Springs WA - Margaret River	Gas Bay WA - Margaret River	Grunters WA - Margaret River	Grunters WA - Margaret River	Grunters WA - Margaret River	Grunters WA - Margaret River	Hussas WA - Margaret River	Hussas WA - Margaret River	Hussas WA - Margaret River	Hussas WA - Margaret River	Hussas WA - Margaret River
Rating (10 max)	6	6	6	5	5	5	5	5	4	4	5	5	5	4	4	4	4	4	4	4	4	4	4	4
Distance (km)	0	0	0	17	17	17	16	2	0	0	0	17	17	16	2	0	0	0	0	17	17	17	17	17
Best forecast wave conditions in Margaret River	Surfers Point	Surfers Point	Surfers Point	Injidup Point	Injidup Point	Hussas	Yallingup Beach	Surfers Point	Surfers Point	Surfers Point	Surfers Point	Supertubes	Hussas	Conto Springs	Surfers Point	Surfers Point	Surfers Point	Surfers Point	Surfers Point	Injidup Point	Hussas	Hussas	Injidup Point	Augusta Rivermouth
Rating (10 max)	6	6	6	5	5	5	5	5	4	4	5	5	5	4	4	4	4	4	4	4	4	4	4	4
Best forecast wave conditions in Australia	Surfers Point WA - Margaret River	Surfers Point WA - Margaret River	Surfers Point WA - Margaret River	Cyclops WA - Far South	Ethel Wreck SA - Yorke Peninsula	Blacknose Point VIC - Far West	Cape Northumberland SA - East Coast	Surfers Point WA - Margaret River	Quarantine VIC - Mornington Peninsula	Luna Park VIC - Far West	Quarantine VIC - Mornington Peninsula	Quarantine VIC - Mornington Peninsula	Knights SA - East Coast	Remarkable Caves TAS - East Coast	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	Shipstern Bluff TAS - East Coast	Mount Cameron TAS - West Coast	Quarantine VIC - Mornington Peninsula	Luna Park VIC - Far West	Luna Park VIC - Far West
Rating (10 max)	6	6	6	5	5	6	8	5	5	9	5	6	5	5	8	7	6	5	5	4	4	4	4	4
Header Global	Shipwrecks Bay-Peaks New Zealand	Shipwreck Bay-Supertubes New Zealand	Cobblestones Australia	Cyclops Australia	Ethel Wreck Australia	Ahijedero Mexico	Ahijedero Mexico	Ouano Lefts New Caledonia	Easter Reef Australia	Easter Reef Australia	Cobblestones Australia	Quarantine Australia	Restaurants Fiji	Trial Harbour Australia	Trial Harbour Australia	Papatowai New Zealand	Papatowai New Zealand	Papatowai New Zealand	Papatowai New Zealand	Nugget Point New Zealand	Papatowai New Zealand	Dunedin - Bobs Beach New Zealand	Papatowai New Zealand	Papatowai New Zealand
Rating (10 max)	8	8	6	5	5	4	4	6	8	9	5	6	5	9	9	9	9	9	8	6	7	7	9	6

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

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Grunters 48 hour detailed Surf Forecast

How big are the waves at Grunters today (21 Sep):

Short Range Forecast

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