Twelve Mile Beach 48 hour detailed Surf Forecast

Lat Long: 33.95° S 120.32° E

Issued: 7 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) - 4.5ft (1.4m), 13s period with SSW swell.
Afternoon surf: Afternoon surf (14 Sep, local time) - 6ft (1.9m), 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 3PM is: 1.9m 15s primary swell from a South-southwest direction and 0.5m 3s secondary swell from a Southeast direction (forecast issued at 07:00am September 14). The wind direction is predicted to be cross-onshore.

Time (AWST) & Date	Wave Height	Wave Period
Morning (14 Sep)	4.5ft (1.4m)	13s
Afternoon (14 Sep)	6ft (1.9m)	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 25°C on Wed afternoon, min 12°C on Tue morning). Mainly fresh winds.
	Monday 14							Tuesday 15								Wednesday 16
	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)	1	0	1	0	0	0	1	1	2	2	2	1	1	2	2	2	2	1	2	0	0	1	1
Swell Height Map See all maps
Wave Height (m) Direction Period (s)	SSW 15	SSW 13	SSW 16	SSW 15	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	1327	690	1437	1646	1898	1622	1435	1240	1114	1130	1145	956	1130	756	756	983	1010	811	800	678	527	415	336
Wind (km/h)	S	SSE	SSE	SE	SE	ESE	E	E	E	ENE	ENE	E	E	ENE	ENE	ENE	ENE	NE	ENE	E	E	NE	NNE
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy	on	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				11:23AM0.47m				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	16	15	15	14	14	13	13	13	13	12	14	16	16	16	14	12	12	13	20	25	24	24	20
Feels °C	13	11	11	9	9	8	7	7	7	6	8	10	10	11	9	7	7	8	16	20	19	20	15
Swell 1 Height (m) Direction Period (s)	SSW 15	SSW 13	SSW 16	SSW 15	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	1327	690	1437	1646	1898	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)	SSW 16	SSW 16	—	—	—	—	—	SW 21	SSW 21	—	SW 20	SSW 19	—	SSW 17	SSW 18	SW 17	ESE 6	ESE 7	SW 15	SW 15	SW 14	ESE 7	SE 7
kJ	447	402	—	—	—	—	—	18	45	—	97	246	—	464	348	573	88	76	107	76	221	107	104
Swell 3 Height (m) Direction Period (s)	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	SW 16
kJ	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	—	127
Wind waves Height (m) Direction Period (s)	S 3	—	—	SE 3	SE 4	SE 4	ESE 5	ESE 5	ESE 5	ESE 5	ESE 6	ESE 6	ESE 6	ESE 6	ESE 6	ESE 6	NE 4	NE 4	ESE 6	ESE 6	ESE 6	E 7	NE 3
kJ	5	—	—	5	23	40	48	59	70	87	80	74	87	103	121	147	14	12	72	75	85	270	2
Nearest Offshore or Glassy	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	Bunbury Bay 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	Bay Left Wall 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	Conspicuous Beach WA - Far South	Lights Beach WA - Far South	Lights Beach WA - Far South	Lights Beach WA - Far South	Lights Beach WA - Far South	Sand Patch Beach WA - Far South
Rating (10 max)	4	4	4	4	4	4	4	4	4	4	4	3	3	3	3	4	4	4	4	4	3	4	3
Distance (km)	137	137	440	440	440	440	479	479	439	439	439	439	439	439	439	303	303	340	303	303	303	303	260
Best forecast wave conditions in Far South of Western Australia	Wylie Bay	Cape Arid														Windy Harbour	Mandalay Beach	Conspicuous Beach	Windy Harbour	Mandalay Beach	Windy Harbour	Windy Harbour	Windy Harbour
Rating (10 max)	4	4														5	4	4	4	4	4	4	4
Best forecast wave conditions in Australia	Surfers Point WA - Margaret River	Injidup Carpark WA - Margaret River	Surfers Point WA - Margaret River	Noises 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	Supertubes WA - Margaret River	Noises WA - Margaret River	Surfers Point WA - Margaret River	Surfers Point WA - Margaret River	Flatrock SA - Eyre Peninsula	Surfers Point WA - Margaret River	Daly Heads SA - Yorke Peninsula	May's Point TAS - East Coast	Daly Heads SA - Yorke Peninsula	Left Point VIC - Phillip Island	Guillotines NSW - South Coast	Depot Beach NSW - South Coast
Rating (10 max)	5	5	6	6	6	6	6	5	5	5	5	5	5	5	4	5	4	4	4	4	4	4	4
Header Global	Ouano Lefts New Caledonia	Fish Boma South Africa	Cobblestones Australia	Namotu Lefts Fiji	Cloudbreak Fiji	Gas Bay Australia	Glen Eden South Africa	Cloudbreak Fiji	Cloudbreak Fiji	Cow Bombie Australia	Cobblestones Australia	Supertubes Australia	Cow Bombie Australia	Cow Bombie Australia	Saint Leu Reunion	Etang-Sale Reunion	Etang-Sale Reunion	Etang-Sale Reunion	Saint Leu Reunion	Doring Bay South Africa	Etang-Sale Reunion	Etang-Sale Reunion	Etang-Sale Reunion
Rating (10 max)	6	5	6	6	5	6	7	5	5	5	5	5	5	5	5	7	7	6	6	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)

Latest Updates

Ben Mondy

Six Sun-Soaked Summer Surf Spots: Backed by 20 years of Swell and Wind Stats (and with our 20% Summer Subscription Sale)

Ben Mondy

Summer School: The Timeline of The Boardshort

FREE! Surf-Forecast.com widget for your website

The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Twelve Mile Beach surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.

Twelve Mile Beach 48 hour detailed Surf Forecast

How big are the waves at Twelve Mile Beach today (14 Sep):

Short Range Forecast

Latest Updates

Road Testing the new Db Surf Roller Pro

Summer's Short. Life Is Long.

Roadsurfing in the Basque country

Six Sun-Soaked Summer Surf Spots: Backed by 20 years of Swell and Wind Stats (and with our 20% Summer Subscription Sale)

Summer School: The Timeline of The Boardshort

FREE! Surf-Forecast.com widget for your website