Double Mouth Surf Break

Lat Long: 32.71° S 28.33° E

Double Mouth 48 hour detailed Surf Forecast

Issued: 1 am 17 Aug 2026 (local time)

Forecast update in  hr  min

Today's Double Mouth sea temperature is
19.2° C
0.7° 

Double Mouth surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.


How big are the waves at Double Mouth today (17 Aug):

  • Morning surf: Morning surf (17 Aug, local time) - 1.5ft (0.4m), 11s period with SW swell.
  • Afternoon surf: Afternoon surf (17 Aug, local time) - 1.5ft (0.5m), 15s period with SW swell.
  • Evening surf: Evening surf (17 Aug, local time) - 2ft (0.6m), 14s period with SW swell.

The current surf forecast for Double Mouth at 6AM is: 0.3m 16s primary swell from a Southwest direction and 0.4m 11s secondary swell from a Southwest direction, 0.4m 4s secondary swell from a Southwest direction (forecast issued at 01:00am August 17). An open ocean swell of 1.6m 11s is not directed at the surf break. The wind direction is predicted to be cross-offshore.

Time (SAST) & DateWave HeightWave Period
Morning (17 Aug)1.5ft (0.4m)11s
Afternoon (17 Aug)1.5ft (0.5m)15s
Evening (17 Aug)2ft (0.6m)14s

Table - waves today at Double Mouth. (Swell directed towards the surf break)


Short Range Forecast

Mostly dry. Warm (max 25°C on Wed afternoon, min 15°C on Mon morning). Winds increasing (calm on Mon morning, fresh winds from the WSW by Wed night).

Monday
17
Tuesday
18
Wednesday
19
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
1
0
0
0
0
0
2
2
2
3
1
0
0
2
3
2
3
2
1
1
3
1
2
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)
0.4
SW
12
0.3
SW
16
0.4
SW
11
0.3
SW
11
0.4
SW
15
0.5
SW
14
0.6
SW
14
1.2
E
10
1.2
E
10
1.1
E
10
1.1
E
10
0.6
SW
16
0.8
SSW
9
0.5
SW
15
1
SSW
15
1.2
SSW
14
1.3
SSW
14
1.3
SSW
14
1.3
SSW
13
1.3
SSW
13
1.3
SSW
14
1.3
SSW
14
1.4
SSW
13
1.8
SW
13
Wave Graph
Metric surfscale
Energy kJ
48
43
30
18
79
103
121
296
284
235
231
198
86
110
443
523
612
617
590
590
621
612
680
1127
Wind (km/h)
15
SW
10
WSW
5
W
5
SSE
10
ESE
10
SSE
10
SW
15
WSW
15
WSW
10
WSW
10
W
10
SSW
15
S
15
SSW
5
SSW
5
NNE
10
NE
15
NNE
20
NNE
20
NE
20
ENE
5
ESE
25
SW
30
SW
Wind State
cross-off
cross-off
cross-off
glassy
on
cross-on
cross
cross-off
cross-off
cross-off
cross-off
cross
cross-on
cross-on
glassy
glassy
cross
cross-off
cross-off
cross
cross
glassy
cross
cross-off
High Tide
6:10AM1.45m
6:31PM1.52m
6:38AM1.33m
7:00PM1.38m
7:07AM1.20m
7:29PM1.23m
Low Tide
00:10AM0.18m
12:12PM0.15m
00:40AM0.29m
12:41PM0.28m
1:09AM0.41m
1:10PM0.43m
clear
clear
clear
clear
clear
clear
part cloud
clear
part cloud
part cloud
part cloud
part cloud
part cloud
cloud
cloud
cloud
clear
clear
clear
clear
clear
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:41
6:41
6:39
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
5:38
5:39
5:39
 mm
Temp °C
17
16
15
20
20
18
16
16
16
15
16
18
18
18
18
18
17
16
17
22
25
21
19
18
Feels °C
16
15
14
20
20
18
16
15
15
14
15
17
16
17
18
18
16
14
15
20
23
23
17
12
  • 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 Double Mouth 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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