Extensions surfForecast / Cape Town / South Africa

information circle16 Day Weather and Surf, issued 7 am Tuesday 02 Jun 2026 SAST
Forecast update in hr  min  s Forecast update imminent
Extensions surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Extensions sea temperature is
16.9° C
(Which is normal for this time of year)

Extensions surf forecast from 2 Jun 2026:

  • Best quality surf: Friday 5 Jun, 11PM (local time) - 4ft (1.2m), 14s period, SW swell with offshore winds.
  • Most powerful swell: Monday 8 Jun, 2AM (local time) - 8ft (2.4m), 14s period, SW swell with 1,990 kJ wave energy.
  • Next surfable swell (1★+): Friday 5 Jun, 5AM (local time) - 3ft (0.9m), 11s period with SW swell.

Best Forecast Surf Conditions for Extensions this week:

The surf forecast for Extensions over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Friday (Jun 05) at 5AM. The primary swell is predicted to be 0.9m and 11s period. The wind is predicted to be offshore as the swell arrives.

The most powerful waves expected at Extensions in the next 16 days are 2.4m 14s and forecast to arrive on Monday (Jun 08) at 2AM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 3.0m 7s period and expected on Wednesday (Jun 03) at 8AM.

Wave TypeTime (SAST) & Date Wave Height & Period
Next good surf (1 star+) 5AM (Fri 5th Jun)3ft (0.9m) 11s
Best Surf11PM (Fri 5th Jun)4ft (1.2m) 14s
Most Powerful 2AM (Mon 8th Jun)8ft (2.4m) 14s

Table - best surf conditions forecast for Extensions over the next 16 days.


Updates in  hr  min  s Forecast update imminent

Short Range Forecast

Light rain (total 3mm), mostly falling on Tue morning. Very mild (max 16°C on Tue morning, min 14°C on Wed afternoon). Winds decreasing (near gales from the ESE on Wed afternoon, moderate winds from the ESE by Thu night).

Days 4-6 Weather Summary

Moderate rain (total 12mm), heaviest on Sun morning. Very mild (max 16°C on Sat afternoon, min 13°C on Sun morning). Winds increasing (calm on Fri afternoon, fresh winds from the NNW by Sat night).

Tuesday
2
Wednesday
3
Thursday
4
Friday
5
Saturday
6
Sunday
7
Monday
8
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
0
0
0
0
0
0
0
0
1
2
2
3
1
0
0
2
2
2
3
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)
1.9
WSW
11
2.2
S
7
1.9
SSW
13
1.9
SW
12
1.6
SW
12
1.4
SW
12
1.1
SW
11
1.1
SW
11
0.9
SW
11
0.6
SW
15
0.9
WSW
14
1.3
WSW
13
1.3
WSW
12
1.5
WSW
12
1.8
WSW
11
2.1
WSW
13
2.1
WSW
14
2.4
SW
14
2.1
SW
13
2.2
WSW
13
1.8
SW
12
Wave Graph
Metric surfscale
Energy kJ
822
537
1216
1026
772
505
320
268
194
191
367
545
466
626
743
1427
1710
1990
1435
1548
899
Wind (km/h)
40
SE
45
SE
50
SE
50
SE
55
ESE
50
ESE
45
SE
40
SE
25
ESE
10
ENE
5
ESE
10
ENE
15
NNW
30
NW
35
NNW
20
N
15
NNW
20
NW
15
NNW
30
WNW
25
WSW
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-on
cross-on
cross
cross
cross
cross-on
cross
cross-on
cross-on
High Tide
4:34PM1.33m
4:39AM1.32m
5:10PM1.30m
5:14AM1.27m
5:49PM1.27m
5:52AM1.21m
6:31PM1.25m
6:36AM1.16m
7:19PM1.23m
7:31AM1.11m
8:13PM1.23m
8:37AM1.08m
9:15PM1.25m
Low Tide
10:21AM0.23m
10:37PM0.36m
10:55AM0.26m
11:13PM0.40m
11:29AM0.30m
11:53PM0.44m
12:06PM0.34m
00:38AM0.48m
12:48PM0.39m
1:31AM0.50m
1:38PM0.43m
2:35AM0.50m
2:39PM0.46m
3:46AM0.45m
rain showers
cloud
cloud
cloud
light rain
clear
clear
clear
clear
part cloud
part cloud
part cloud
part cloud
clear
rain showers
rain showers
clear
light rain
mod rain
clear
rain showers
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
7:43
7:43
7:45
7:45
7:46
7:46
7:47
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
5:44
5:43
5:43
5:43
5:43
5:43
5:42
2
1
2
5
5
7
7
Temp °C
16
16
16
16
15
15
15
15
16
15
14
15
15
16
15
14
15
15
13
15
16
12
9
7
6
6
4
5
6
8
10
12
13
12
11
9
11
12
12
11
10
11
Swell 1
Height (m)
Direction
Period (s)
1.9
WSW
11
1.4
WSW
10
1.9
SSW
13
1.9
SW
12
1.6
SW
12
1.4
SW
12
1.1
SW
11
1.1
SW
11
1.7
SE
11
1.4
SE
12
1.3
SE
12
1.3
SE
13
1.3
WSW
12
1.5
WSW
12
1.8
WSW
11
2.1
WSW
13
2.1
WSW
14
2.4
SW
14
2.1
SW
13
2.2
WSW
13
1.8
SW
12
Energy kJ
822
418
1216
1026
772
505
320
268
702
524
471
600
466
626
743
1427
1710
1990
1435
1548
899
Swell 2
Height (m)
Direction
Period (s)
0.9
SW
11
0.9
SSW
10
0.9
W
11
0.6
W
11
0.5
W
10
0.4
W
10
0.3
W
10
0.3
W
10
0.9
SW
11
0.6
SW
15
0.9
WSW
14
1.3
WSW
13
1.2
SE
12
1
SE
12
1.1
SW
14
0.6
SE
12
0.4
SE
11
0.4
SE
11
0.4
SSE
6
0.3
SSE
6
0.8
W
7
Energy kJ
169
182
191
84
53
33
18
19
194
191
367
545
423
277
418
86
44
33
13
8
65
Swell 3
Height (m)
Direction
Period (s)
0.1
NW
11
0.4
SSW
15
0.2
SSW
15
0.4
SSW
13
0.5
SSW
12
0.6
SW
10
0.2
SSW
10
0.7
SE
12
0.1
NW
15
0.1
W
15
0.1
NW
13
0.3
SE
12
0.2
ESE
12
0.3
SE
11
Energy kJ
5
86
21
69
77
80
11
134
8
4
7
24
14
20
Wind waves
Height (m)
Direction
Period (s)
1
SSE
5
2.2
S
7
2.4
SSE
7
3
SE
8
3
SSE
8
3
SE
9
2.4
SE
10
2.1
SE
11
0.6
W
4
Energy kJ
50
537
595
1113
1135
1255
1092
954
9
Nearest Offshore or Glassy
Rating
(10 max)
3
2
3
3
2
2
2
3
2
2
2
3
2
2
3
3
3
4
4
3
3
Distance (km)
67
379
37
224
1077
225
224
187
12
0
0
0
1
24
35
25
3
1
1
20
5
Best forecast wave conditions in Cape Town
Rating
(10 max)
3
4
3
4
3
4
4
3
3
4
4
4
4
3
3
Best forecast wave conditions in South Africa
Rating
(10 max)
3
2
4
3
2
4
4
5
5
4
4
4
4
4
4
4
4
4
4
3
3
Header Global
Rating
(10 max)
5
5
5
5
5
5
4
5
5
5
9
8
7
9
9
9
7
7
9
8
5
  • Map Icons:
  • Break
  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
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Information about the Extensions Surf forecast

The above surf forecast table for Extensions provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Extensions can be found by selecting the local surf guide option on the grey menu. Our Extensions surf forecast is unique since it includes wave energy (power) that defines the real feel of the surf rather than just the height or the period. If you surf the same spot (Extensions) regularly then make a mental note of the wave energy from the surf forecast table each time you go. Very soon you may start to choose your surf days based on the wave energy alone combined with our forecast of favourable offshore wind conditions. Our star ratings will help here and of course you will also find the usual wave height and period predictions on our surf forecasts as well as a full break down of the swell components under our advanced users option (to reveal that, click the little Einstein character under the tide times).

Further information to help with frequently asked questions about our surf forecast for Extensions may be found under the help tab on the top menu and also by moving your mouse over the question marks on the surf forecast table itself. Please always bear in mind that the forecast is for near-shore open water and local factors at each surf break influence the actual breaking wave height, such as the beach / reef profile, water depths offshore and shelter.

Are you planning a holiday in Cape Town? If you are looking for accommodation near Extensions, camping, hotels and holiday cottages in Cape Town, consider staying in Cape Town which is 45 km (28 miles) away. Other places in and around Cape Town where you can find information about places to rent, and car hire include Bellville which is 51 km (32 miles) away, Grabouw, Stellenbosch and Kayamnandi.

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