- 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 pm Thursday 30 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
18.3° C
(Which is slightly warmer than usual)How big are the waves at Extensions today?
The current surf forecast for Extensions at 3AM is: 2.5m 14s primary swell from a South-southwest direction (forecast issued at 07:00pm April 30). An open ocean swell of 0.5m 11s is not directed at the surf break. The wind direction is predicted to be cross-onshore.
| Time (SAST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (01 May) | 8ft (2.5m) | 13s |
| Afternoon (01 May) | 8ft (2.5m) | 12s |
| Evening (01 May) | 10ft (3.0m) | 12s |
Table - waves today at Extensions. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastMostly dry. Very mild (max 19°C on Sun afternoon, min 15°C on Fri morning). Winds increasing (light winds from the SW on Thu night, strong winds from the N by Sat morning). | ||||||||||||||||||||||||
Thu 30 | Friday 1 | Saturday 2 | Sun 3 | |||||||||||||||||||||
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 | 5 AM | 8 AM | 11 AM | 2 PM | |
Swell Height Map |    |    |    |    | ||||||||||||||||||||
SSW 16 | SSW 15 | SSW 14 | SSW 14 | SW 13 | SW 13 | SW 13 | SW 12 | SW 12 | SW 12 | WSW 12 | SW 12 | WSW 11 | WSW 11 | WSW 11 | WSW 11 | WSW 11 | W 11 | W 10 | W 10 | W 10 | W 10 | WSW 15 | WSW 14 | |
4285 | 4209 | 3613 | 2856 | 2310 | 2456 | 2239 | 2269 | 2001 | 2244 | 2365 | 2243 | 2510 | 1948 | 1731 | 1555 | 1348 | 1201 | 1144 | 926 | 840 | 745 | 773 | 886 | |
Wind (km/h) | ||||||||||||||||||||||||
cross-on | cross-on | on | cross-on | cross | cross | cross | cross-on | cross-on | cross | cross | cross | cross | cross | cross | cross | cross-on | cross | cross | cross | cross | cross | cross-on | cross-on | |
High Tide | 2:43PM1.40m | 2:47AM1.51m | 3:12PM1.42m | 3:17AM1.50m | 3:42PM1.41m | 3:47AM1.46m | ||||||||||||||||||
Low Tide | 8:44PM0.22m | 9:07AM0.11m | 9:14PM0.22m | 9:35AM0.12m | 9:43PM0.24m | 10:04AM0.16m | ||||||||||||||||||
 |  | |  |  |  | | |  | | | | | | | | | | | | | | | | |
 | — | — | — | — | 7:20 | — | — | — | — | — | — | — | 7:20 | — | — | — | — | — | — | — | 7:22 | — | — | — |
 | 6:06 | — | — | — | — | — | — | — | 6:05 | — | — | — | — | — | — | — | 6:04 | — | — | — | — | — | — | 6:02 |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Temp °C | 16 | 16 | 16 | 16 | 16 | 15 | 16 | 17 | 17 | 16 | 16 | 15 | 15 | 15 | 16 | 17 | 17 | 17 | 17 | 18 | 17 | 18 | 18 | 19 |
14 | 13 | 13 | 12 | 11 | 8 | 8 | 9 | 8 | 8 | 8 | 7 | 6 | 6 | 8 | 10 | 12 | 13 | 14 | 15 | 14 | 15 | 15 | 15 | |
Swell 1 Height (m) Direction Period (s) | SSW 16 | SSW 15 | SSW 14 | SSW 14 | SW 13 | SW 13 | SW 13 | SW 12 | SW 12 | SW 12 | WSW 12 | SW 12 | WSW 11 | WSW 11 | WSW 11 | WSW 11 | WSW 11 | W 11 | W 10 | W 10 | W 10 | W 10 | W 10 | W 10 |
 kJ | 4285 | 4209 | 3613 | 2856 | 2310 | 2456 | 2239 | 2269 | 2001 | 2244 | 2365 | 2243 | 2510 | 1948 | 1731 | 1555 | 1348 | 1201 | 1144 | 926 | 840 | 745 | 637 | 625 |
Swell 2 Height (m) Direction Period (s) | SSE 12 | SE 12 | SSE 11 | SE 11 | SSE 11 | SE 11 | SSE 11 | SSE 10 | SE 10 | S 15 | S 14 | S 15 | S 15 | S 11 | S 11 | S 11 | S 11 | S 11 | S 11 | WSW 16 | WSW 16 | WSW 15 | WSW 15 | WSW 14 |
| kJ | 211 | 135 | 85 | 59 | 47 | 30 | 11 | 10 | 4 | 109 | 103 | 39 | 38 | 123 | 195 | 195 | 235 | 191 | 181 | 412 | 407 | 661 | 773 | 886 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | SSE 10 | SE 10 | SE 10 | W 21 | W 21 | SSE 15 | SSE 14 | SSE 14 | WSW 18 | WSW 18 | WSW 17 | S 11 | S 10 | S 10 | SSW 10 | SSW 10 |
| kJ | — | — | — | — | — | — | — | — | 10 | 4 | 4 | 9 | 9 | 72 | 70 | 69 | 126 | 178 | 317 | 181 | 171 | 130 | 80 | 56 |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | NNW 3 | NNW 4 | NNW 5 | NW 6 | NW 6 | NNW 6 | NNW 6 | NNW 6 | NNW 6 | NNW 6 | NNW 6 | NNW 6 | NNW 6 | NNW 6 | — | — | — | — | — |
| kJ | — | — | — | — | — | 5 | 58 | 119 | 278 | 229 | 211 | 335 | 263 | 437 | 448 | 351 | 193 | 95 | 131 | — | — | — | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 5 | 3 | 3 | 1 | 35 | 35 | 264 | 167 | 167 | 271 | 242 | 224 | 50 | 224 | 167 | 167 | 24 | 30 | 26 | 25 | 25 | 25 | 1 | 24 |
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