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Extensions Surf Forecast
/ Cape Town (70 surf breaks) /
Surf Forecasts:
Extensions surfForecast / Cape Town / South Africa
48hr Weather and Surf, issued 7 pm Tuesday 28 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 12AM is: 1.3m 10s primary swell from a Southwest direction (forecast issued at 07:00pm April 28). An open ocean swell of 2.1m 12s 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 ForecastMostly dry. Very mild (max 17°C on Fri afternoon, min 15°C on Tue night). Winds increasing (light winds from the W on Thu night, strong winds from the NNW by Fri afternoon). | ||||||||||||||||||||||||
Tue 28 | Wednesday 29 | Thursday 30 | Fri 1 | |||||||||||||||||||||
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 |    |    |    |    | ||||||||||||||||||||
SW 10 | SW 10 | SW 10 | SW 9 | 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 | |
341 | 341 | 341 | 251 | 268 | 225 | 170 | 221 | 585 | 511 | 543 | 211 | 308 | 463 | 585 | 3388 | 4340 | 4209 | 3613 | 3035 | 2459 | 2345 | 2140 | 1884 | |
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-off | cross-off | cross-off | cross-off | cross | cross | cross-on | on | cross-on | cross-on | cross | cross | cross-on | |
High Tide | 1:46AM1.47m | 2:12PM1.37m | 2:17AM1.51m | 2:43PM1.40m | 2:47AM1.51m | |||||||||||||||||||
Low Tide | 7:39PM0.28m | 8:09AM0.15m | 8:13PM0.24m | 8:39AM0.12m | 8:44PM0.22m | 9:07AM0.11m | ||||||||||||||||||
 |  | | | | | | | | | | | | | | |  |  | | | | |  | | |
 | — | — | — | — | 7:18 | — | — | — | — | — | — | — | 7:20 | — | — | — | — | — | — | — | 7:20 | — | — | — |
 | 6:07 | — | — | — | — | — | — | — | 6:07 | — | — | — | — | — | — | — | 6:06 | — | — | — | — | — | — | 6:05 |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Temp °C | 16 | 16 | 16 | 16 | 15 | 15 | 15 | 16 | 16 | 16 | 16 | 15 | 15 | 15 | 15 | 16 | 16 | 16 | 16 | 16 | 16 | 15 | 16 | 17 |
10 | 11 | 11 | 11 | 9 | 10 | 10 | 10 | 9 | 9 | 9 | 9 | 9 | 9 | 10 | 12 | 13 | 13 | 14 | 13 | 12 | 9 | 8 | 8 | |
Swell 1 Height (m) Direction Period (s) | SSE 11 | SSE 11 | SSE 12 | SSE 12 | SSE 12 | SSE 12 | SSE 11 | SSE 13 | SSE 13 | SW 13 | SSE 13 | SW 10 | SW 11 | SSE 12 | SSW 14 | SSW 17 | SSW 16 | SSW 15 | SSW 14 | SSW 14 | SW 13 | SW 13 | SW 13 | SW 12 |
 kJ | 1146 | 1167 | 1211 | 1084 | 1100 | 950 | 1124 | 1180 | 1103 | 511 | 880 | 211 | 308 | 443 | 585 | 3388 | 4340 | 4209 | 3613 | 3035 | 2459 | 2345 | 2140 | 1884 |
Swell 2 Height (m) Direction Period (s) | SW 10 | SW 10 | SW 10 | SW 9 | SW 10 | SW 9 | SW 9 | SW 9 | SW 13 | SSW 16 | SW 13 | SW 13 | SSW 15 | SW 12 | SSE 12 | SSE 12 | SSE 12 | SE 12 | SSE 11 | SE 11 | SSE 11 | SE 11 | SE 11 | SSE 10 |
| kJ | 341 | 341 | 341 | 251 | 268 | 225 | 170 | 188 | 585 | 102 | 543 | 202 | 152 | 463 | 347 | 289 | 211 | 135 | 85 | 59 | 47 | 30 | 18 | 10 |
Swell 3 Height (m) Direction Period (s) | SSW 10 | S 12 | SSW 11 | S 11 | SW 15 | SW 14 | SW 14 | SW 14 | S 10 | S 10 | SSW 16 | SW 16 | SW 13 | SW 15 | SW 12 | — | — | — | — | — | — | — | — | — |
| kJ | 109 | 46 | 41 | 38 | 78 | 130 | 162 | 221 | 8 | 8 | 103 | 125 | 84 | 176 | 268 | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | SE 4 | — | SE 4 | SSE 4 | SSE 13 | SE 5 | SSE 12 | SSE 12 | SE 5 | SE 4 | SSE 4 | — | — | — | — | — | — | NW 4 | NW 5 |
| kJ | — | — | — | — | — | 16 | — | 26 | 34 | 1442 | 73 | 1173 | 984 | 41 | 27 | 13 | — | — | — | — | — | — | 28 | 74 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 34 | 27 | 12 | 27 | 25 | 25 | 12 | 27 | 400 | 37 | 33 | 30 | 33 | 33 | 34 | 26 | 26 | 3 | 1 | 1 | 1 | 35 | 167 | 167 |
Best forecast wave conditions in Cape Town | ||||||||||||||||||||||||
Best forecast wave conditions in South Africa | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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