Twelve Mile Beach 48 hour detailed Surf Forecast

Lat Long: 33.95° S 120.32° E

Issued: 7 pm 14 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 5AM is: 1.7m 14s primary swell from a South-southwest direction and 0.2m 21s secondary swell from a South-southwest direction, 1.1m 5s secondary swell from a East-southeast direction (forecast issued at 07:00pm September 14). The wind direction is predicted to be cross-offshore.

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). Mainly fresh winds.
	Mon 14			Tuesday 15								Wednesday 16
	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)	0	0	1	1	2	2	2	1	0	1	2	2	2	1	1	1	0	2	1
Swell Height Map See all maps
Wave Height (m) Direction Period (s)	SSW 15	SSW 15	SSW 14	SSW 14	SSW 14	SSW 14	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
Wave Graph
kJ	1955	1622	1435	1240	1114	1130	1145	956	1130	756	756	983	1010	811	800	678	527	415	336
Wind (km/h)	ESE	ESE	ESE	E	ENE	E	ENE	ESE	E	E	ENE	ENE	ENE	NE	ENE	ENE	E	NE	NNE
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy	cross-on	cross-on	cross	cross	cross-off	cross-off	cross-off	cross	cross	cross	cross-off	cross-off	cross-off	cross-off	cross-off	cross-off	cross	cross-off	cross-off
High Tide				11:50PM0.75m				11:13AM0.42m				00:07AM0.76m			10:57AM0.40m
Low Tide		5:02PM0.16m				6:39AM0.25m			4:55PM0.13m					7:05AM0.31m			4:52PM0.11m


	—	—	—	—	5:58	—	—	—	—	—	—	—	5:56	—	—	—	—	—	—
	5:47	—	—	—	—	—	—	—	5:49	—	—	—	—	—	—	—	5:50	—	—
mm	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
Temp °C	14	13	13	13	13	13	14	16	16	16	14	13	12	13	20	25	25	24	20
Feels °C	8	8	7	7	7	7	7	10	10	11	9	8	7	8	15	20	20	20	15
Swell 1 Height (m) Direction Period (s)	SSW 15	SSW 15	SSW 14	SSW 14	SSW 14	SSW 14	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
kJ	1955	1622	1435	1240	1114	1130	1145	956	1130	756	756	983	1010	811	800	678	527	415	336
Swell 2 Height (m) Direction Period (s)	—	—	—	SW 21	SSW 21	—	SW 20	SSW 19	—	SSW 17	SSW 18	SW 15	ESE 7	ESE 6	SW 15	SW 15	SW 14	ESE 7	SE 7
kJ	—	—	—	18	45	—	97	325	—	464	270	551	76	66	107	76	221	93	107
Swell 3 Height (m) Direction Period (s)	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	SW 16
kJ	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	127
Wind waves Height (m) Direction Period (s)	SE 4	SE 4	ESE 5	ESE 5	ESE 5	ESE 5	ESE 6	ESE 6	ESE 6	ESE 6	ESE 6	ESE 7	NE 4	NE 4	E 6	ESE 6	ESE 6	E 7	NNE 3
kJ	18	32	42	59	69	74	80	98	115	107	103	137	12	12	86	68	87	247	4
Nearest Offshore or Glassy	Bunbury Bay WA - Perth South	Cozies and Geeries WA - Perth City	Cottesloe Beach WA - Perth City	Cable Station Reef WA - Perth City	Bay Left Wall WA - Perth South	Bay Left Wall WA - Perth South	Bay Left Wall WA - Perth South	Bay Left Wall WA - Perth South	Bay Left Wall WA - Perth South	Bunbury Bay WA - Perth South	Bay Left Wall WA - Perth South	Lights Beach WA - Far South	Hush Hush Beach WA - Far South	Augusta Rivermouth WA - Margaret River	Peaceful Bay WA - Far South	Lights Beach WA - Far South	Mutton Bird Beach WA - Far South	Lights Beach WA - Far South	Mylies Beach WA - Far South
Rating (10 max)	4	4	4	4	4	4	4	3	3	3	3	4	4	4	3	4	4	4	2
Distance (km)	440	460	479	479	439	439	439	439	439	440	439	303	385	477	334	303	273	303	34
Best forecast wave conditions in Far South of Western Australia												Lights Beach	Mandalay Beach		Windy Harbour	Mandalay Beach	Mandalay Beach	Windy Harbour	Mandalay Beach
Rating (10 max)												4	4		4	4	4	4	4
Best forecast wave conditions in Australia	Pea Break WA - Margaret River	Surfers Point WA - Margaret River	Surfers Point WA - Margaret River	Surfers Point WA - Margaret River	Surfers Point WA - Margaret River	Surfers Point WA - Margaret River	Surfers Point WA - Margaret River	Supertubes WA - Margaret River	Surfers Point WA - Margaret River	Surfers Point WA - Margaret River	Surfers Point WA - Margaret River	Surfers Point WA - Margaret River	Surfers Point WA - Margaret River	Daly Heads SA - Yorke Peninsula	Daly Heads SA - Yorke Peninsula	Daly Heads SA - Yorke Peninsula	Left Point VIC - Phillip Island	Surfers Point WA - Margaret River	Guillotines NSW - South Coast
Rating (10 max)	5	6	6	5	5	5	5	5	5	5	4	4	4	4	4	4	4	4	4
Header Global	Cloudbreak Fiji	Gas Bay Australia	Gas Bay Australia	Cow Bombie Australia	Cloudbreak Fiji	Cloudbreak Fiji	Cobblestones Australia	Supertubes Australia	Cow Bombie Australia	Cobblestones Australia	Etang-Sale Reunion	Saint Leu Reunion	Saint Leu Reunion	Etang-Sale Reunion	Saint Leu Reunion	Etang-Sale Reunion	Saint Leu Reunion	Etang-Sale Reunion	Etang-Sale Reunion
Rating (10 max)	5	6	6	5	5	5	5	5	5	5	7	6	6	6	5	5	5	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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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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