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Surf Forecasts:

Extensions surfForecast / Cape Town / South Africa

information circle12 Day Weather and Surf, issued 7 pm Saturday 24 Jan 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
19.7° C
 (Which is slightly cooler than normal)

Best Forecast Surf Conditions for Extensions this week:

The surf forecast for Extensions over the next 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Saturday (Jan 24) at 11PM. The primary swell is predicted to be 2.5m and 12s period with a secondary swell of 0.1m and 14s. The wind is predicted to be glassy as the swell arrives.

The most powerful waves expected at Extensions in the next 12 days are 3.0m 16s and forecast to arrive on Saturday (Jan 31) at 11PM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.8m 6s period and expected on Thursday (Jan 29) at 2AM.

Wave TypeTime (SAST) & Date Wave Height & Period
Next good surf (1 star+)11PM (Sat 24th Jan)8ft (2.5m) 12s
Best Surf11PM (Sat 24th Jan)8ft (2.5m) 12s
Most Powerful11PM (Sat 31st Jan)10ft (3.0m) 16s

Table - best surf conditions forecast for Extensions over the next 12 days.

Updates in  hr  min  s Forecast update imminent 
12 DaysHourly
Print Table

Short Range Forecast Mostly dry. Warm (max 21°C on Sun afternoon, min 19°C on Sat night). Wind will be generally light.

Days 3-6 Weather Summary Mostly dry. Warm (max 21°C on Thu morning, min 18°C on Tue night). Winds decreasing (strong winds from the SE on Wed night, light winds from the SW by Fri morning).

Sunday
25
Monday
26
Tuesday
27
Wednesday
28
Thursday
29
Friday
30
Sat
31
NightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPM
Rating
(10 max)
4
3
2
3
3
2
3
2
0
2
2
1
0
3
2
3
3
0
1
1
1
Swell
Height Map
See all maps
Wave Height (m) & direction (?)
2.4
SSW
2.3
SW
2.4
SSW
2.2
SW
2.3
SW
2.3
SW
2.5
SW
3
SW
3
SW
3
SW
3
SW
3
SW
3
SW
2.5
SW
2.2
SW
1.9
SW
1.7
SW
1.5
SW
1.3
SW
1.2
SSW
1.4
SW
Period(s) (?)121111111112121213131313131313121211111018
Wave
Graph
(?)Metric surfscale
Energy kJ (?)15801351142511481302152418182185275229752677287029592076155810597945734222941111
Wind
(km/h)
10
SSE
15
SSE
15
S
20
SSE
15
SW
20
WSW
10
NW
15
SW
25
SSW
25
SE
30
SSE
40
SSE
50
SE
20
SE
30
SE
25
SSE
10
SW
20
SW
15
S
30
SSE
40
SE
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
cross-
off		cross-
off		crosscross-
off		cross-
on		oncross-
on		cross-
on		cross-
on		cross-
off		cross-
off		cross-
off		cross-
off		cross-
off		cross-
off		cross-
off		cross-
on		cross-
on		crosscross-
off		cross-
off
High Tide
/ height (m)
7:18AM
1.40
7:47PM
1.15
8:15AM
1.31
9:02PM
1.07
9:35AM
1.23
10:43PM
1.05
11:12AM
1.22
12:17AM
1.13
12:36PM
1.29
1:25AM
1.26
1:39PM
1.39
2:16AM
1.40
2:29PM
1.48
Low Tide
/ height (m)
12:52AM
0.30
1:42PM
0.34
1:43AM
0.41
2:49PM
0.41
2:56AM
0.51
4:22PM
0.45
4:42AM
0.54
5:59PM
0.40
6:22AM
0.47
7:11PM
0.29
7:32AM
0.35
8:04PM
0.17
8:25AM
0.22
Sunday
25
Monday
26
Tuesday
27
Wednesday
28
Thursday
29
Friday
30
Sat
31
Sunrise-5:58--6:00--6:01--6:01--6:03--6:03--6:05-
Sunset--7:57--7:55--7:54--7:54--7:53--7:52--7:52
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
clear
clear
clear
clear
Rain (mm)
---------------------
Temp. °C202021202020202020191918182121212121201918
Feels °C (?)201920192019202118161512101918172220191712
  • Map Icons:
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  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
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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.

View detailed surf forecast for Extensions at:
surf-forecast.com

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 12 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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