Surf Break

Lat Long: 34.34° S 18.46° E

Extensions 48 hour detailed Surf Forecast

Issued: 7 pm 25 Sep 2026 (local time)

Forecast update in  hr  min

Today's Extensions sea temperature is
14.8°C
1.1° 

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


How big are the waves at Extensions today (25 Sep):

  • Afternoon surf: Afternoon surf (25 Sep, local time) - 5ft (1.6m), 12s period with SW swell.
  • Evening surf: Evening surf (25 Sep, local time) - 5ft (1.5m), 12s period with SW swell.

The current surf forecast for Extensions at 11PM is: 1.6m 12s primary swell from a Southwest direction (forecast issued at 07:00pm September 25). An open ocean swell of 0.4m 9s is not directed at the surf break. The wind direction is predicted to be cross-offshore.

Time (SAST) & DateWave HeightWave Period
Morning (25 Sep)--
Afternoon (25 Sep)5ft (1.6m)12s
Evening (25 Sep)5ft (1.5m)12s

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


Short Range Forecast

Light rain (total 5mm), mostly falling on Sat morning. Very mild (max 17°C on Sat afternoon, min 12°C on Sun night). Winds increasing (light winds from the SW on Fri night, near gales from the SE by Mon afternoon).

Fri
25
Saturday
26
Sunday
27
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
3
2
4
3
3
4
4
3
2
2
2
1
1
1
1
1
0
0
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
1.6
SW
12
1.5
SW
12
1.6
SW
12
1.1
SW
16
1.4
SW
16
2.3
SW
15
2.3
SW
15
2.3
SW
15
2.3
SW
14
2.2
SW
14
2.2
SW
14
2.2
SW
14
2.5
SW
14
1.7
WSW
14
2.4
SW
14
2.4
SW
14
2.2
SW
13
1.6
WSW
13
1.6
WSW
13
Wave Graph
Metric surfscale
Energy kJ
734
614
666
643
954
2390
2469
2278
2232
1977
1850
1748
2238
1143
2221
2135
1643
875
875
Wind (km/h)
20
WSW
5
SW
15
SE
10
SE
15
SE
20
SSE
15
SSE
15
S
20
S
30
SSE
30
SSE
30
SSE
40
SSE
40
SSE
40
SE
40
SSE
45
SE
50
SE
50
SE
Wind State
on
cross-on
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
cross-off
High Tide
2:29PM1.57m
2:46AM1.50m
2:59PM1.65m
3:18AM1.54m
3:30PM1.69m
Low Tide
8:44PM0.08m
8:49AM0.08m
9:14PM0.01m
9:19AM0.05m
9:46PM-0.02m
part cloud
cloud
cloud
light rain
light rain
light rain
light rain
cloud
cloud
part cloud
cloud
part cloud
cloud
part cloud
clear
clear
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
—
—
—
—
6:30
—
—
—
—
—
—
—
6:28
—
—
—
—
—
—
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:44
—
—
—
—
—
—
—
6:45
—
—
—
—
—
—
—
6:45
—
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 mm
—
—
—
1
1
2
1
—
—
—
—
—
—
—
—
—
—
—
—
Temp °C
17
16
16
16
16
16
16
16
17
16
15
15
14
14
13
13
13
13
13
Feels °C
15
16
14
15
14
14
15
14
15
11
11
11
7
7
5
4
4
3
3
  • 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 Extensions 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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