Twelve Mile Beach Surf Break

Lat Long: 33.95° S 120.32° E

Twelve Mile Beach 48 hour detailed Surf Forecast

Issued: 1 am 18 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 6AM is: 1.3m 17s primary swell from a South-southwest direction and 2.0m 8s secondary swell from a Southwest direction (forecast issued at 01:00am August 18). 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

Some drizzle, heaviest during Tue morning. Very mild (max 19°C on Wed afternoon, min 12°C on Tue morning). Wind will be generally light.

Tuesday
18
Wednesday
19
Thursday
20
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)
0
0
1
1
0
1
3
3
2
2
1
1
2
0
2
4
4
4
3
2
1
2
2
4
Swell
Height Map
Height Map
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
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
SSW
15
1
SSW
15
1.2
SSW
16
1.5
SW
16
1.8
SSW
16
2.1
SSW
16
1.9
SSW
16
1.9
SSW
16
1.8
SSW
16
1.8
SSW
16
1.7
SSW
16
1.7
SSW
16
1.8
SSW
16
1.9
SSW
16
2
SSW
16
Wave Graph
Metric surfscale
Energy kJ
1069
911
838
798
620
612
604
596
566
468
480
697
1115
1671
2049
1811
1811
1629
1606
1487
1451
1606
1816
2033
Wind (km/h)
40
W
35
W
25
W
25
WSW
25
SW
15
W
15
WNW
15
WNW
20
WNW
20
NW
25
NW
25
W
15
WSW
25
SW
10
S
5
S
10
N
5
NNW
15
W
15
WSW
15
SSW
10
S
10
S
5
SSW
Wind State
cross
cross
cross
cross
cross-on
cross
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-on
cross-on
on
glassy
off
glassy
cross
cross-on
on
on
on
glassy
High Tide
00:49AM0.64m
11:25AM0.46m
1:11AM0.65m
10:52AM0.46m
1:37AM0.64m
Low Tide
7:09AM0.36m
5:50PM0.14m
7:41AM0.42m
5:44PM0.11m
5:40PM0.09m
part cloud
part cloud
part cloud
rain showers
part cloud
clear
cloud
cloud
clear
part cloud
cloud
clear
cloud
clear
part cloud
cloud
part cloud
clear
clear
clear
clear
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:35
6:33
6:33
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
5:30
5:30
5:30
 mm
1
Temp °C
11
11
12
14
15
16
16
15
14
13
13
17
19
15
14
14
14
13
13
15
16
15
16
15
Feels °C
2
3
6
8
9
12
12
11
9
8
7
11
15
10
12
13
13
12
11
12
12
12
14
14
  • 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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