Twelve Mile Beach 48 hour detailed Surf Forecast

Lat Long: 33.95° S 120.32° E

Issued: 1 am 16 Sep 2026 (local time)

Forecast update in hr min

Today's Twelve Mile Beach sea temperature is

16.6°C

Twelve Mile Beach 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 Twelve Mile Beach today (16 Sep):

Morning surf: Morning surf (16 Sep, local time) - 4.5ft (1.4m), 15s period with SSW swell.
Afternoon surf: Afternoon surf (16 Sep, local time) - 4.5ft (1.3m), 14s period with SSW swell.
Evening surf: Evening surf (16 Sep, local time) - 3.5ft (1.1m), 13s period with SSW swell.

The current surf forecast for Twelve Mile Beach at 6AM is: 1.5m 15s primary swell from a South-southwest direction and 0.8m 16s secondary swell from a Southwest direction, 1.1m 7s secondary swell from a East-southeast direction (forecast issued at 01:00am September 16). The wind direction is predicted to be cross-offshore.

Time (AWST) & Date	Wave Height	Wave Period
Morning (16 Sep)	4.5ft (1.4m)	15s
Afternoon (16 Sep)	4.5ft (1.3m)	14s
Evening (16 Sep)	3.5ft (1.1m)	13s

Table - waves today at Twelve Mile Beach. (Swell directed towards the surf break)

	Short Range Forecast Light rain (total 3mm), mostly falling on Fri afternoon. Warm (max 33°C on Thu afternoon, min 14°C on Wed morning). Winds decreasing (fresh winds from the NNE on Wed night, calm by Fri morning).
	Wednesday 16								Thursday 17								Friday 18
	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)	2	3	2	2	1	1	2	0	0	1	2	1	0	0	2	2	0	1	2	2	0	1	2	2
Swell Height Map See all maps
Wave Height (m) Direction Period (s)	SSW 15	SSW 15	SSW 15	SSW 14	SSW 14	SSW 14	SSW 14	SSW 13	SSW 13	SSW 13	SSW 15	SSW 15	SSW 15	SSW 14	SSW 14	SSW 14	SSW 14	SSW 14	SSW 16	SSW 14	SSW 13	SSW 16	SSW 16	SSW 15
Wave Graph
kJ	983	1010	811	800	678	527	415	336	249	201	314	314	242	239	183	180	168	210	142	123	106	217	160	154
Wind (km/h)	ENE	ENE	NE	NE	ENE	E	NE	NE	NNE	NNE	N	N	NNW	NW	N	N	W	NNW	N	N	SW	SW	NE	N
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy	cross-off	cross-off	cross-off	cross-off	cross-off	cross	cross-off	cross-off	cross-off	off	off	off	cross-off	cross-off	off	off	cross	cross-off	off	glassy	cross-on	cross-on	cross-off	off
High Tide	00:07AM0.76m			10:57AM0.40m					00:25AM0.75m			10:29AM0.40m					00:46AM0.71m
Low Tide			7:05AM0.31m			4:52PM0.11m					7:33AM0.37m			4:52PM0.09m								4:52PM0.08m


	—	5:56	—	—	—	—	—	—	—	5:56	—	—	—	—	—	—	—	5:54	—	—	—	—	—	—
	—	—	—	—	—	5:50	—	—	—	—	—	—	—	5:51	—	—	—	—	—	—	—	5:51	—	—
mm	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	1	1	—
Temp °C	13	13	14	22	26	27	26	23	21	19	20	28	33	32	29	27	23	20	22	27	26	23	22	23
Feels °C	8	9	10	18	21	23	22	18	15	13	14	22	27	27	25	22	21	18	20	27	25	23	21	21
Swell 1 Height (m) Direction Period (s)	SSW 15	SSW 15	SSW 15	SSW 14	SSW 14	SSW 14	SSW 14	SSW 13	SE 8	SE 7	SSW 15	SSW 15	SSW 15	SSW 14	SSW 14	SSW 14	SSW 14	SSW 14	SSW 16	SSW 14	SSW 13	SSW 16	SSW 16	SSW 15
kJ	983	1010	811	800	678	527	415	336	116	79	314	314	242	239	183	180	168	210	142	123	106	217	160	154
Swell 2 Height (m) Direction Period (s)	SW 15	SW 17	SW 16	ESE 7	SW 15	SW 14	ESE 6	SE 7	SSW 13	SSW 13	SE 7	ESE 7	ESE 7	ESE 7	SE 7	SE 7	SE 7	SE 7	SSW 13	SSW 16	SSW 16	SSW 12	SSW 12	SSW 12
kJ	551	330	258	68	76	221	100	102	249	201	51	31	26	19	12	12	13	14	67	104	104	56	56	56
Swell 3 Height (m) Direction Period (s)	—	—	—	—	—	—	—	SSW 13	SSW 16	SSW 16	SSW 15	ENE 4	S 12	—	SSW 19	SSW 18	—	—	SE 7	SE 7	ESE 7	ESE 7	ESE 7	ESE 7
kJ	—	—	—	—	—	—	—	17	103	103	179	2	72	—	35	64	—	—	14	13	5	5	5	5
Wind waves Height (m) Direction Period (s)	ESE 7	ESE 7	ESE 7	E 7	ESE 7	ESE 6	—	NE 3	NE 4	NNE 4	NNE 4	N 4	NNW 4	NNW 4	NNW 4	N 3	NNW 3	NW 3	NNW 3	NNW 3	NW 4	NNW 4	NNW 4	NNW 3
kJ	163	121	93	89	73	87	—	6	10	8	16	14	21	14	5	4	4	1	1	2	11	13	13	4
Nearest Offshore or Glassy	Bay Left Wall WA - Perth South	Lights Beach WA - Far South	Lights Beach WA - Far South	Lights Beach WA - Far South	Ocean Beach WA - Far South	Mutton Bird Beach WA - Far South	Lights Beach WA - Far South	Nanarup Beach WA - Far South	Mylies Beach WA - Far South	Cyclops WA - Far South	Cyclops WA - Far South	Wylie Bay WA - Far South	Wylie Bay WA - Far South	Crazies WA - Far South	Twelve Mile Beach WA - Far South	Twelve Mile Beach WA - Far South	Crazies WA - Far South	Crazies WA - Far South	Twelve Mile Beach WA - Far South	Twelve Mile Beach WA - Far South	Crazies WA - Far South	Crazies WA - Far South	Twelve Mile Beach WA - Far South	Twelve Mile Beach WA - Far South
Rating (10 max)	3	4	4	4	3	4	4	3	2	3	3	2	2	1	2	2	1	1	2	2	1	1	2	2
Distance (km)	439	303	303	303	299	273	303	243	34	260	260	165	165	20	0	0	20	20	0	0	20	20	0	0
Best forecast wave conditions in Far South of Western Australia		Mandalay Beach	Conspicuous Beach	Windy Harbour	Mandalay Beach	Mutton Bird Beach	Windy Harbour	Windy Harbour	Mandalay Beach	Cyclops	Cyclops	Rocky Head	Cape Arid	Cape Arid	Cyclops	Rocky Head	Mandalay Beach	Windy Harbour	Windy Harbour	Mandalay Beach	Cyclops	Cyclops	Ocean Beach	Cyclops
Rating (10 max)		4	4	4	4	4	4	4	4	3	3	3	2	2	2	3	3	4	4	4	2	2	3	3
Best forecast wave conditions in Australia	Surfers Point WA - Margaret River	Surfers Point WA - Margaret River	Daly Heads SA - Yorke Peninsula	Daly Heads SA - Yorke Peninsula	Ethel Wreck SA - Yorke Peninsula	Left Point VIC - Phillip Island	Surfers Point WA - Margaret River	Guillotines NSW - South Coast	Scotts Head NSW - Port Macquarie	Currumbin Point QLD - Gold Coast	Ethel Wreck SA - Yorke Peninsula	Ethel Wreck SA - Yorke Peninsula	Ethel Wreck SA - Yorke Peninsula	Arrawarra NSW - North Coast	Luna Park VIC - Far West	Bancoora VIC - Torquay	Easter Reef VIC - Far West	Bruny Island - Jawbones TAS - East Coast	Bancoora VIC - Torquay	Bancoora VIC - Torquay	Bancoora VIC - Torquay	Bancoora VIC - Torquay	Bullies SA - East Coast	Cyclops WA - Far South
Rating (10 max)	4	4	4	4	4	4	4	4	7	4	4	3	3	4	5	4	5	6	4	4	4	4	3	3
Header Global	Saint Leu Reunion	Saint Leu Reunion	Etang-Sale Reunion	Etang-Sale Reunion	Etang-Sale Reunion	Saint Leu Reunion	Etang-Sale Reunion	Etang-Sale Reunion	Etang-Sale Reunion	Cronulla Point Australia	Papatowai New Zealand	Papatowai New Zealand	Caravan Park/Lamberts Bay South Africa	Papatowai New Zealand	Papatowai New Zealand	Dunedin - Cob Cottage New Zealand	Weld Road New Zealand	Blaketown Wedge New Zealand	Guns Namibia	Blaketown Wedge New Zealand	Papatowai New Zealand	Papatowai New Zealand	Papatowai New Zealand	Benkunqut Indonesia
Rating (10 max)	6	6	6	6	5	5	5	5	5	5	5	5	4	5	9	5	6	5	5	5	8	8	7	4

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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Twelve Mile Beach 48 hour detailed Surf Forecast

How big are the waves at Twelve Mile Beach today (16 Sep):

Short Range Forecast

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