Twelve Mile Beach 48 hour detailed Surf Forecast

Lat Long: 33.95° S 120.32° E

Issued: 1 am 14 Sep 2026 (local time)

Forecast update in hr min

Today's Twelve Mile Beach sea temperature is

16.5°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 (14 Sep):

Morning surf: Morning surf (14 Sep, local time) - 5ft (1.5m), 13s period with SSW swell.
Afternoon surf: Afternoon surf (14 Sep, local time) - 6.5ft (2.0m), 15s period with SSW swell.
Evening surf: Evening surf (14 Sep, local time) - 6ft (1.9m), 14s period with SSW swell.

The current surf forecast for Twelve Mile Beach at 7AM is: 1.5m 13s primary swell from a South-southwest direction and 0.9m 16s secondary swell from a South-southwest direction (forecast issued at 01:00am September 14). The wind direction is predicted to be cross-onshore.

Time (AWST) & Date	Wave Height	Wave Period
Morning (14 Sep)	5ft (1.5m)	13s
Afternoon (14 Sep)	6.5ft (2.0m)	15s
Evening (14 Sep)	6ft (1.9m)	14s

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

	Short Range Forecast Mostly dry. Warm (max 24°C on Wed afternoon, min 12°C on Tue morning). Mainly fresh winds.
	Monday 14								Tuesday 15								Wednesday 16
	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)	3	2	0	0	0	0	0	1	1	2	2	2	1	1	2	2	2	2	2	2	0	0	2	2
Swell Height Map See all maps
Wave Height (m) Direction Period (s)	SSW 15	SSW 15	SSW 13	SSW 16	SSW 15	SSW 15	SSW 15	SSW 14	SSW 14	SSW 14	SSW 14	SSW 14	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	1209	1327	734	1437	1646	1537	1622	1435	1240	1114	1130	1130	956	1130	756	756	983	1010	811	800	678	527	415	396
Wind (km/h)	W	SW	SSE	SE	SE	ESE	ESE	E	E	ENE	ENE	ENE	E	E	ENE	ENE	ENE	ENE	NE	ENE	E	E	ENE	NNE
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy	cross	cross-on	cross-on	cross-on	cross-on	cross-on	cross-on	cross	cross	cross-off	cross-off	cross-off	cross	cross	cross-off	cross-off	cross-off	cross-off	cross-off	cross-off	cross	cross	cross-off	cross-off
High Tide	11:36PM0.71m				11:23AM0.47m				11:50PM0.75m				11:13AM0.42m				00:07AM0.76m			10:57AM0.40m
Low Tide			6:12AM0.20m				5:02PM0.16m				6:39AM0.25m			4:55PM0.13m					7:05AM0.31m			4:52PM0.11m


	—	6:00	—	—	—	—	—	—	—	5:58	—	—	—	—	—	—	—	5:56	—	—	—	—	—	—
	—	—	—	—	—	5:47	—	—	—	—	—	—	—	5:49	—	—	—	—	—	—	—	5:50	—	—
mm	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—
Temp °C	17	18	16	15	15	14	13	13	13	13	12	13	15	16	15	15	13	12	13	20	24	23	24	20
Feels °C	14	15	13	11	10	8	7	7	7	7	6	7	9	10	9	10	8	7	8	16	19	18	20	16
Swell 1 Height (m) Direction Period (s)	SSW 15	SSW 15	SSW 13	SSW 16	SSW 15	SSW 15	SSW 15	SSW 14	SSW 14	SSW 14	SSW 14	SSW 14	SSW 14	SSW 14	SSW 14	SSW 14	SSW 15	SSW 15	SSW 15	SSW 14	SSW 14	SSW 14	SSW 14	SE 7
kJ	1209	1327	734	1437	1646	1537	1622	1435	1240	1114	1130	1130	956	1130	756	756	983	1010	811	800	678	527	415	102
Swell 2 Height (m) Direction Period (s)	—	SSW 16	SSW 16	—	—	—	—	—	SW 21	SSW 21	—	SW 20	SSW 19	—	SSW 17	SSW 18	SW 17	ESE 6	SW 16	SW 15	SW 15	SW 14	SW 14	SSW 13
kJ	—	447	402	—	—	—	—	—	18	45	—	97	246	—	464	270	573	74	258	107	76	264	64	396
Swell 3 Height (m) Direction Period (s)	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	S 22
kJ	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	9
Wind waves Height (m) Direction Period (s)	—	—	—	—	SE 3	SE 4	ESE 5	ESE 5	ESE 5	ESE 5	ESE 5	ESE 6	ESE 6	ESE 6	ESE 6	ESE 6	ESE 6	ENE 4	E 6	E 6	ESE 6	ESE 6	ESE 6	NE 3
kJ	—	—	—	—	7	29	46	74	80	75	74	84	62	71	90	103	110	10	100	84	85	100	117	5
Nearest Offshore or Glassy	Crazies WA - Far South	NIne Mile Beach WA - Far South	NIne Mile Beach WA - Far South	Bunbury Bay WA - Perth South	Bunbury Bay WA - Perth South	Bunbury Bay WA - Perth South	Peppermint Grove Reef WA - Perth South	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	Bunbury Bay WA - Perth South	Bay Left Wall WA - Perth South	Bay Left Wall WA - Perth South	Lights Beach WA - Far South	Lights Beach WA - Far South	Bay Left Wall WA - Perth South	Lights Beach WA - Far South	Lights Beach WA - Far South	Lights Beach WA - Far South	Lights Beach WA - Far South	Mutton Bird Beach WA - Far South
Rating (10 max)	3	4	4	4	4	4	4	4	4	4	4	4	3	3	3	3	4	4	2	4	4	3	4	4
Distance (km)	20	137	137	440	440	440	447	479	479	439	439	439	439	440	439	439	303	303	439	303	303	303	303	273
Best forecast wave conditions in Far South of Western Australia	Wylie Bay	Wylie Bay	Cape Arid														Hush Hush Beach	Mandalay Beach		Windy Harbour	Windy Harbour	Mandalay Beach	Windy Harbour	Mandalay Beach
Rating (10 max)	4	4	4														4	4		4	4	4	4	4
Best forecast wave conditions in Australia	Surfers Point WA - Margaret River	The Spot WA - Perth City	Injidup Carpark WA - Margaret River	Conto Springs WA - Margaret River	Surfers Point WA - Margaret River	Conto Springs 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	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	Daly Heads SA - Yorke Peninsula	Daly Heads SA - Yorke Peninsula	Daly Heads SA - Yorke Peninsula	Left Point VIC - Phillip Island	Guillotines NSW - South Coast	Left Point VIC - Phillip Island
Rating (10 max)	6	5	5	6	6	6	6	6	5	5	5	5	5	5	5	4	4	4	4	4	4	4	4	5
Header Global	Gas Bay Australia	Ouano Lefts New Caledonia	Fish Boma South Africa	Injidup Carpark Australia	Cobblestones Australia	Cloudbreak Fiji	Gas Bay Australia	Gas Bay Australia	Glen Eden South Africa	Hole-in-the-Wall South Africa	Cow Bombie Australia	Cobblestones Australia	Cobblestones Australia	Cow Bombie Australia	Cow Bombie Australia	Saint Leu Reunion	Etang-Sale Reunion	Saint Leu Reunion	Etang-Sale Reunion	Antiques Maldives	Etang-Sale Reunion	Etang-Sale Reunion	Etang-Sale Reunion	Etang-Sale Reunion
Rating (10 max)	6	6	5	5	6	5	6	6	8	7	5	5	5	5	5	5	8	6	6	4	5	5	5	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 (14 Sep):

Short Range Forecast

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