Twelve Mile Beach Surf Break

Lat Long: 33.95° S 120.32° E

Twelve Mile Beach 48 hour detailed Surf Forecast

Issued: 7 pm 17 Aug 2026 (local time)

Forecast update in  hr  min

Today's Twelve Mile Beach sea temperature is
16.9° C
0.3° 

Twelve Mile Beach surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.


How big are the waves at Twelve Mile Beach today (18 Aug):

  • Morning surf: Morning surf (18 Aug, local time) - 4.5ft (1.3m), 16s period with SSW swell.
  • Afternoon surf: Afternoon surf (18 Aug, local time) - 3.5ft (1.1m), 16s period with SSW swell.
  • Evening surf: Evening surf (18 Aug, local time) - 3.5ft (1.1m), 16s period with SSW swell.

The current surf forecast for Twelve Mile Beach at 2AM is: 1.3m 17s primary swell from a South-southwest direction and 0.2m 7s secondary swell from a East direction, 1.7m 7s secondary swell from a West-southwest direction (forecast issued at 07:00pm August 17). The wind direction is predicted to be cross-shore.

Time (AWST) & DateWave HeightWave Period
Morning (18 Aug)4.5ft (1.3m)16s
Afternoon (18 Aug)3.5ft (1.1m)16s
Evening (18 Aug)3.5ft (1.1m)16s

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


Short Range Forecast

Light rain (total 5mm), mostly falling on Mon night. Very mild (max 18°C on Wed afternoon, min 11°C on Mon night). Winds decreasing (strong winds from the WNW on Mon night, calm by Wed night).

Mon
17
Tuesday
18
Wednesday
19
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
0
1
0
0
1
0
2
1
1
2
2
2
1
1
2
0
2
4
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
1.3
SSW
18
1.2
SSW
18
1.3
SSW
18
1.3
SSW
17
1.3
SSW
17
1.3
SSW
16
1.3
SSW
16
1.1
SSW
16
1.1
SSW
16
1.1
SSW
16
1.1
SSW
16
1.1
SSW
15
1.3
SSW
15
1
SSW
15
1.3
SSW
16
1.4
SW
16
1.7
SSW
16
1.9
SSW
16
1.9
SSW
16
Wave Graph
Metric surfscale
Energy kJ
1020
907
943
1069
1044
838
798
620
612
604
596
566
794
480
749
1031
1517
1811
1811
Wind (km/h)
30
NW
40
W
40
WNW
40
W
35
W
30
W
25
WSW
20
WSW
10
SW
15
W
15
WNW
20
WNW
20
NW
25
NW
30
WNW
10
SW
25
SSW
15
SSE
5
NE
Wind State
cross-off
cross
cross-off
cross
cross
cross
cross-on
cross
cross-on
cross
cross-off
cross-off
cross-off
cross-off
cross-off
cross-on
cross-on
cross-on
glassy
High Tide
00:49AM0.64m
11:25AM0.46m
1:11AM0.65m
10:52AM0.46m
Low Tide
6:01PM0.17m
7:09AM0.36m
5:50PM0.14m
7:41AM0.42m
5:44PM0.11m
cloud
light rain
clear
clear
clear
part cloud
rain showers
clear
part cloud
clear
cloud
part cloud
part cloud
part cloud
clear
clear
part cloud
part cloud
cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:35
6:33
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
5:29
5:30
5:30
 mm
4
1
Temp °C
21
14
12
11
11
12
14
15
15
15
15
14
13
13
16
18
16
15
14
Feels °C
15
6
3
2
3
6
9
10
12
10
10
9
8
7
9
14
12
13
13
  • Map Icons:
  • Break
  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
Map placeholder
How to use the Wavefinder 

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.


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