- Forecast
- Maps
- Live
- Weather State
- Spot Information
Extensions Surf Forecast
/ Cape Town (70 surf breaks) /
Surf Forecasts:
Extensions surfForecast / Cape Town / South Africa
48hr Weather and Surf, issued 7 am Wednesday 29 Apr 2026 SASTForecast 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
18.4° C
(Which is slightly warmer than usual)How big are the waves at Extensions today?
The current surf forecast for Extensions at 3PM is: 0.8m 14s primary swell from a Southwest direction and 1.1m 9s secondary swell from a Southwest direction (forecast issued at 07:00am April 29). An open ocean swell of 2.0m 13s is not directed at the surf break, a second open ocean swell of 0.8m 4s is not directed at the surf break. The wind direction is predicted to be cross-offshore.
| Time (SAST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (29 Apr) | 3.5ft (1.1m) | 9s |
| Afternoon (29 Apr) | 2.5ft (0.8m) | 14s |
| Evening (29 Apr) | 4.5ft (1.3m) | 13s |
Table - waves today at Extensions. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastLight rain (total 3mm), mostly falling on Fri night. Very mild (max 16°C on Wed afternoon, min 15°C on Wed morning). Winds increasing (light winds from the W on Thu night, strong winds from the NNW by Fri afternoon). | ||||||||||||||||||||||||
Wednesday 29 | Thursday 30 | Friday 1 | Sat 2 | |||||||||||||||||||||
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 | 2 AM | |
Swell Height Map |    |    |    |    | ||||||||||||||||||||
SW 10 | SW 9 | SW 9 | SW 14 | SW 13 | SW 13 | SW 13 | SW 10 | SW 11 | SW 12 | SSW 14 | SSW 17 | SSW 16 | SSW 15 | SSW 14 | SSW 14 | SW 13 | SW 13 | SW 13 | SW 12 | SW 12 | SW 12 | WSW 12 | WSW 12 | |
268 | 225 | 170 | 221 | 585 | 511 | 613 | 211 | 308 | 409 | 501 | 3388 | 4285 | 4209 | 3613 | 3035 | 2459 | 2345 | 2377 | 2101 | 1742 | 2146 | 2321 | 3025 | |
Wind (km/h) | ||||||||||||||||||||||||
cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross | cross | cross-on | on | cross-on | cross-on | cross | cross | cross | cross-on | cross | cross | cross | |
High Tide | 2:12PM1.37m | 2:17AM1.51m | 2:43PM1.40m | 2:47AM1.51m | 3:12PM1.42m | |||||||||||||||||||
Low Tide | 8:09AM0.15m | 8:13PM0.24m | 8:39AM0.12m | 8:44PM0.22m | 9:07AM0.11m | 9:14PM0.22m | ||||||||||||||||||
 |  | | | | | | | | | | |  |  | | |  |  | | | | | |  | |
 | 7:18 | — | — | — | — | — | — | — | 7:20 | — | — | — | — | — | — | — | 7:20 | — | — | — | — | — | — | 7:20 |
 | — | — | — | — | 6:07 | — | — | — | — | — | — | — | 6:06 | — | — | — | — | — | — | — | 6:05 | — | — | 6:04 |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 | |
Temp °C | 15 | 15 | 15 | 15 | 16 | 16 | 16 | 15 | 15 | 15 | 15 | 16 | 15 | 16 | 16 | 16 | 16 | 15 | 16 | 16 | 16 | 16 | 15 | 15 |
9 | 10 | 11 | 9 | 9 | 9 | 9 | 10 | 9 | 9 | 10 | 12 | 11 | 13 | 14 | 13 | 12 | 10 | 9 | 7 | 7 | 7 | 7 | 7 | |
Swell 1 Height (m) Direction Period (s) | SSE 12 | SSE 12 | SSE 11 | SSE 13 | SSE 13 | SSE 13 | SSE 13 | SSE 12 | SW 11 | SSE 12 | SSE 12 | SSW 17 | SSW 16 | SSW 15 | SSW 14 | SSW 14 | SW 13 | SW 13 | SW 13 | SW 12 | SW 12 | SW 12 | WSW 12 | WSW 12 |
 kJ | 1100 | 984 | 1124 | 1344 | 1217 | 995 | 880 | 739 | 308 | 443 | 347 | 3388 | 4285 | 4209 | 3613 | 3035 | 2459 | 2345 | 2377 | 2101 | 1742 | 2146 | 2321 | 3025 |
Swell 2 Height (m) Direction Period (s) | SW 10 | SW 9 | SW 9 | SW 9 | SW 13 | SW 13 | SW 13 | SW 10 | SSW 15 | SW 12 | SSW 14 | SSE 12 | SSE 12 | SE 12 | SSE 11 | SE 11 | SSE 11 | SE 11 | SSE 11 | SSE 10 | S 15 | S 15 | S 15 | S 15 |
| kJ | 268 | 225 | 170 | 188 | 585 | 511 | 613 | 211 | 150 | 409 | 501 | 289 | 235 | 135 | 85 | 59 | 47 | 30 | 11 | 10 | 212 | 109 | 104 | 69 |
Swell 3 Height (m) Direction Period (s) | SW 15 | SW 14 | SW 14 | SW 14 | S 10 | SSW 16 | SSW 16 | SW 13 | SW 13 | SW 15 | SW 12 | — | — | — | — | — | — | — | — | — | SSE 10 | SE 10 | SE 10 | W 21 |
| kJ | 78 | 130 | 162 | 221 | 8 | 102 | 103 | 202 | 84 | 176 | 298 | — | — | — | — | — | — | — | — | — | 10 | 4 | 4 | 9 |
Wind waves Height (m) Direction Period (s) | — | — | — | SE 4 | SE 4 | SE 5 | SE 5 | SE 5 | SSE 12 | SSE 4 | SE 4 | — | — | — | — | — | — | — | NW 4 | NW 5 | NW 5 | NNW 5 | NNW 6 | NNW 6 |
| kJ | — | — | — | 14 | 26 | 49 | 59 | 59 | 843 | 35 | 14 | — | — | — | — | — | — | — | 21 | 68 | 160 | 125 | 143 | 194 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 25 | 25 | 12 | 27 | 400 | 37 | 30 | 26 | 30 | 30 | 26 | 26 | 26 | 26 | 1 | 1 | 1 | 35 | 66 | 167 | 271 | 271 | 224 | 50 |
Best forecast wave conditions in Cape Town | ||||||||||||||||||||||||
Best forecast wave conditions in South Africa | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
- Map Icons:
Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
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.
Nearest