Double Mouth Surf Break

Lat Long: 32.71° S 28.33° E

Double Mouth 48 hour detailed Surf Forecast

Issued: 1 am 18 Jul 2026 (local time)

Forecast update in  hr  min

Today's Double Mouth sea temperature is
19.1° C
1.2° 

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 (18 Jul):

  • Morning surf: Morning surf (18 Jul, local time) - 3.5ft (1.0m), 11s period with SSW swell.
  • Afternoon surf: Afternoon surf (18 Jul, local time) - 4.5ft (1.3m), 12s period with S swell.
  • Evening surf: Evening surf (18 Jul, local time) - 4.5ft (1.4m), 11s period with S swell.

The current surf forecast for Double Mouth at 9AM is: 0.8m 13s primary swell from a South direction and 1.0m 11s secondary swell from a South-southwest direction (forecast issued at 01:00am July 18). The wind direction is predicted to be cross-offshore and the swell rating is 3.

Time (SAST) & DateWave HeightWave Period
Morning (18 Jul)3.5ft (1.0m)11s
Afternoon (18 Jul)4.5ft (1.3m)12s
Evening (18 Jul)4.5ft (1.4m)11s

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


Short Range Forecast

Mostly dry. Warm (max 20°C on Sat morning, min 14°C on Sun night). Wind will be generally light.

Saturday
18
Sunday
19
Monday
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)
3
3
3
2
1
2
3
3
3
3
3
3
2
2
3
4
3
4
4
4
3
1
3
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)
1.2
SSW
11
1.1
SSW
10
1
SSW
11
1.1
S
12
1.3
S
12
1.4
S
12
1.4
S
11
1.4
S
11
1.5
S
11
1.5
S
11
1.1
S
11
1.1
SE
13
1.5
SE
10
1.7
SSE
11
1.6
SE
12
1.5
SE
12
1.6
SE
12
1.6
SE
12
2.5
SW
9
1.6
SE
12
1.6
SE
12
1.6
SE
12
1.5
SE
12
1.5
SE
12
Wave Graph
Metric surfscale
Energy kJ
340
251
225
368
485
535
474
434
517
525
272
424
486
610
710
594
736
748
1024
700
689
689
625
625
Wind (km/h)
5
NNW
5
NW
5
WNW
5
SSW
10
S
10
SSW
10
W
10
WNW
10
WNW
10
WNW
5
WNW
0
SE
10
SSE
5
SSW
10
W
15
W
15
W
15
WNW
10
WNW
5
SSW
10
SE
10
ENE
15
NNE
15
NNE
Wind State
off
off
off
cross
cross-on
cross-on
cross-off
cross-off
off
off
off
glassy
cross-on
cross-on
cross-off
cross-off
cross-off
cross-off
cross-off
glassy
on
cross-on
cross-off
cross-off
High Tide
6:11AM1.48m
6:41PM1.58m
6:47AM1.38m
7:18PM1.48m
7:24AM1.26m
7:57PM1.36m
Low Tide
00:11AM0.18m
12:18PM0.10m
00:50AM0.27m
12:53PM0.20m
1:29AM0.37m
1:29PM0.32m
cloud
cloud
part cloud
cloud
part cloud
part cloud
clear
clear
part cloud
cloud
cloud
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
7:05
7:05
7:05
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
5:20
5:20
5:21
 mm
Temp °C
15
14
15
20
20
19
17
17
16
15
16
19
19
18
16
16
15
14
14
18
18
18
16
16
Feels °C
15
13
13
19
18
18
16
16
15
13
14
18
17
17
15
14
12
11
12
17
16
16
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 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.


Nearest locationNearest