Twelve Mile Beach 48 hour detailed Surf Forecast

Lat Long: 33.95° S 120.32° E

Issued: 1 pm 15 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 (15 Sep):

Morning surf: Morning surf (15 Sep, local time) - 5.5ft (1.7m), 14s period with SSW swell.
Afternoon surf: Afternoon surf (15 Sep, local time) - 5ft (1.5m), 14s period with SSW swell.
Evening surf: Evening surf (15 Sep, local time) - 4.5ft (1.4m), 14s period with SSW swell.

The current surf forecast for Twelve Mile Beach at 7PM is: 1.4m 14s primary swell from a South-southwest direction and 0.9m 17s secondary swell from a South-southwest direction, 1.4m 6s secondary swell from a East-southeast direction (forecast issued at 01:00pm September 15). The wind direction is predicted to be cross-shore.

Time (AWST) & Date	Wave Height	Wave Period
Morning (15 Sep)	5.5ft (1.7m)	14s
Afternoon (15 Sep)	5ft (1.5m)	14s
Evening (15 Sep)	4.5ft (1.4m)	14s

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

	Short Range Forecast Mostly dry. Warm (max 33°C on Thu afternoon, min 12°C on Tue night). Winds decreasing (strong winds from the E on Tue afternoon, light winds from the NNW by Fri morning).
	Tue 15					Wednesday 16								Thursday 17
	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)	1	0	0	1	2	2	2	2	2	0	0	2	1	0	2	2	1	0	0	2	2
Swell Height Map See all maps
Wave Height (m) Direction Period (s)	SSW 15	SSW 14	SSW 14	SSW 14	SSW 14	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
Wave Graph
kJ	1145	956	1130	756	756	983	1010	811	697	678	527	415	336	249	249	318	314	242	239	183	180
Wind (km/h)	E	E	E	E	ENE	ENE	ENE	NE	ENE	E	E	ENE	NNE	NNE	NNE	N	N	NNW	NNW	N	NNW
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy	cross	cross	cross	cross	cross-off	cross-off	cross-off	cross-off	cross-off	cross	cross	cross-off	cross-off	cross-off	off	off	off	cross-off	cross-off	off	off
High Tide						00:07AM0.76m			10:57AM0.40m					00:25AM0.75m			10:29AM0.40m
Low Tide			4:55PM0.13m					7:05AM0.31m			4:52PM0.11m					7:33AM0.37m			4:52PM0.09m


	—	—	—	—	—	—	5:56	—	—	—	—	—	—	—	5:56	—	—	—	—	—	—
	—	—	5:49	—	—	—	—	—	—	—	5:50	—	—	—	—	—	—	—	5:51	—	—
mm	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
Temp °C	14	16	16	16	14	12	12	13	22	26	25	25	24	20	20	21	28	33	32	29	27
Feels °C	8	9	9	10	8	7	7	8	18	21	20	21	19	15	15	15	22	27	27	25	23
Swell 1 Height (m) Direction Period (s)	SSW 15	SSW 14	SSW 14	SSW 14	SSW 14	SSW 15	SSW 15	SSW 15	SSW 14	SSW 14	SSW 14	ESE 7	SE 7	SE 8	SE 7	SSW 15	SSW 15	SSW 15	SSW 14	SSW 14	SSW 14
kJ	1145	956	1130	756	756	983	1010	811	697	678	527	107	104	116	79	318	314	242	239	183	180
Swell 2 Height (m) Direction Period (s)	SW 20	SSW 19	—	SSW 17	SSW 18	SW 15	SW 15	SW 16	SW 15	SW 15	SW 14	SSW 14	SSW 13	SSW 13	SSW 13	SE 7	ESE 7	ESE 7	ESE 7	SE 7	SE 7
kJ	97	325	—	464	270	551	380	258	107	76	221	415	336	249	249	50	41	26	19	12	12
Swell 3 Height (m) Direction Period (s)	—	—	—	—	—	—	—	—	—	—	—	—	SW 16	SSW 16	SSW 16	SSW 15	S 12	S 12	—	SSW 19	SSW 18
kJ	—	—	—	—	—	—	—	—	—	—	—	—	127	103	103	179	71	72	—	35	64
Wind waves Height (m) Direction Period (s)	ESE 6	ESE 6	ESE 6	ESE 6	ESE 7	ESE 7	ESE 7	E 6	ESE 6	ESE 6	ESE 6	—	NE 3	NNE 3	NNE 3	NNE 4	N 4	NNW 4	NNW 4	NNW 4	N 3
kJ	91	104	140	155	189	141	114	86	72	90	93	—	2	3	4	13	19	21	21	7	5
Nearest Offshore or Glassy	Bay Left Wall WA - Perth South	Bay Left Wall WA - Perth South	Bunbury Bay WA - Perth South	Bunbury Bay WA - Perth South	Bay Left Wall WA - Perth South	Bay Left Wall WA - Perth South	Lights Beach WA - Far South	Bay Left Wall WA - Perth South	Peaceful Bay WA - Far South	Lights Beach WA - Far South	Mutton Bird Beach WA - Far South	Mutton Bird Beach WA - Far South	Nanarup Beach WA - Far South	Mylies Beach WA - Far South	Twelve Mile Beach WA - Far South	Cyclops WA - Far South	Wylie Bay WA - Far South	Twilight Beach WA - Far South	Crazies WA - Far South	Twelve Mile Beach WA - Far South	Twelve Mile Beach WA - Far South
Rating (10 max)	4	3	3	3	3	3	4	2	3	4	4	4	3	2	2	3	2	2	1	2	2
Distance (km)	439	439	440	440	439	439	303	439	334	303	273	273	243	34	0	260	165	139	20	0	0
Best forecast wave conditions in Far South of Western Australia							Mandalay Beach		Windy Harbour	Mandalay Beach	Windy Harbour	Windy Harbour	Windy Harbour	Windy Harbour	Cyclops	Cyclops	Mandalay Beach	Cape Arid	Ocean Beach	Rocky Head	Rocky Head
Rating (10 max)							4		4	4	4	4	4	4	3	3	3	2	2	3	3
Best forecast wave conditions in Australia	Surfers Point WA - Margaret River	Bunker Bay Bommie WA - Margaret River	Surfers Point WA - Margaret River	Surfers Point WA - Margaret River	Surfers Point WA - Margaret River	Surfers Point WA - Margaret River	Blackfellows SA - Eyre Peninsula	Daly Heads SA - Yorke Peninsula	Ethel Wreck SA - Yorke Peninsula	Ethel Wreck SA - Yorke Peninsula	Left Point VIC - Phillip Island	Surfers Point WA - Margaret River	Guillotines NSW - South Coast	JD Reef NSW - Newcastle	Bancoora VIC - Torquay	JD Reef NSW - Newcastle	Ethel Wreck SA - Yorke Peninsula	Ethel Wreck SA - Yorke Peninsula	Ethel Wreck SA - Yorke Peninsula	Luna Park VIC - Far West	Bancoora VIC - Torquay
Rating (10 max)	5	4	5	5	5	4	4	4	4	4	4	4	4	4	4	5	3	3	3	5	4
Header Global	Cobblestones Australia	Ahijedero Mexico	Margaret River Bommie Australia	Cow Bombie Australia	Gas Bay Australia	Saint Leu Reunion	Saint Leu Reunion	Etang-Sale Reunion	Etang-Sale Reunion	Etang-Sale Reunion	Etang-Sale Reunion	Etang-Sale Reunion	Etang-Sale Reunion	Haapiti French Polynesia	Cronulla Point Australia	JD Reef Australia	Haapiti French Polynesia	Fare Left French Polynesia	Maraa French Polynesia	Papatowai New Zealand	Easter Reef Australia
Rating (10 max)	5	4	5	5	5	6	6	6	6	5	5	5	5	5	5	5	5	5	5	8	5

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 (15 Sep):

Short Range Forecast

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