Extensions Surf Break

Lat Long: 34.34° S 18.46° E

Extensions 48 hour detailed Surf Forecast

Issued: 7 am 15 Sep 2026 (local time)

Forecast update in  hr  min

Today's Extensions sea temperature is
14.8°C
0.9° 

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 (15 Sep):

  • Morning surf: Morning surf (15 Sep, local time) - 6.5ft (2.0m), 7s period with NW swell.
  • Afternoon surf: Afternoon surf (15 Sep, local time) - 4.5ft (1.3m), 16s period with SW swell.
  • Evening surf: Evening surf (15 Sep, local time) - 7.5ft (2.3m), 15s period with SW swell.

The current surf forecast for Extensions at 2PM is: 1.3m 16s primary swell from a Southwest direction and 2.5m 7s secondary swell from a Northwest direction (forecast issued at 07:00am September 15). An open ocean swell of 0.1m 13s is not directed at the surf break. The wind direction is predicted to be cross-onshore.

Time (SAST) & DateWave HeightWave Period
Morning (15 Sep)6.5ft (2.0m)7s
Afternoon (15 Sep)4.5ft (1.3m)16s
Evening (15 Sep)7.5ft (2.3m)15s

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


Short Range Forecast

Moderate rain (total 13mm), heaviest on Tue night. Very mild (max 16°C on Tue morning, min 12°C on Tue night). Winds decreasing (near gales from the NNW on Tue afternoon, fresh winds from the SSE by Tue night).

Tuesday
15
Wednesday
16
Thursday
17
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
0
0
0
0
0
0
3
2
3
1
1
1
1
1
1
1
1
0
0
0
0
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)
1.7
NW
8
1.9
NW
7
2.3
NW
7
1.3
SW
16
1.6
SW
16
2
SW
15
3
SW
15
3.5
WSW
14
3
WSW
14
3
SW
13
2.5
SW
13
2.5
SW
13
2
WSW
13
1.9
SW
13
2.2
SW
13
2.2
SW
13
2.2
SW
12
2.2
SW
12
2.2
SW
12
2.1
SW
12
2
SW
12
1.9
SW
12
1.8
SW
12
Wave Graph
Metric surfscale
Energy kJ
318
381
458
943
1194
1741
3615
4363
3460
3000
2528
2275
1316
1288
1594
1594
1404
1381
1347
1180
1092
929
836
Wind (km/h)
35
NW
45
NNW
50
NNW
55
NNW
50
NNW
40
NNW
40
SSW
35
S
35
SSE
40
SSE
35
SE
40
SE
45
SE
45
SE
40
SE
40
ESE
40
ESE
40
SE
40
SE
45
SE
50
SE
45
SE
45
SE
Wind State
cross-on
cross-on
cross-on
cross-on
cross-on
cross
cross-on
cross
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
5:29PM1.41m
5:48AM1.25m
5:59PM1.27m
6:21AM1.13m
6:34PM1.13m
Low Tide
11:18AM0.26m
11:43PM0.28m
11:47AM0.38m
00:14AM0.41m
12:18PM0.50m
rain showers
clear
part cloud
part cloud
cloud
light rain
mod rain
light rain
part cloud
clear
clear
clear
clear
clear
clear
clear
part cloud
cloud
clear
clear
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:46
6:45
6:43
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:37
6:37
6:37
 mm
1
2
6
5
Temp °C
15
14
16
15
15
14
12
13
14
14
14
14
14
14
13
13
13
14
14
14
14
14
14
Feels °C
10
7
7
5
6
6
5
6
6
5
6
6
5
5
5
4
4
5
5
4
4
5
5
  • 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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