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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 am Monday 27 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 normal for this time of year)How big are the waves at Extensions today?
The current surf forecast for Extensions at 11AM is: 2.5m 10s primary swell from a West-southwest direction and 2.3m 11s secondary swell from a South direction (forecast issued at 07:00am April 27). The wind direction is predicted to be cross-onshore.
| Time (SAST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (27 Apr) | 10ft (3.0m) | 11s |
| Afternoon (27 Apr) | 7ft (2.1m) | 12s |
| Evening (27 Apr) | 7ft (2.2m) | 10s |
Table - waves today at Extensions. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastLight rain (total 2mm), mostly falling on Mon night. Very mild (max 16°C on Tue afternoon, min 14°C on Mon afternoon). Mainly fresh winds. | ||||||||||||||||||||||||
Monday 27 | Tuesday 28 | Wednesday 29 | Thu 30 | |||||||||||||||||||||
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 11 | WSW 11 | S 11 | WSW 12 | WSW 12 | S 10 | S 10 | S 10 | S 11 | S 10 | S 11 | S 11 | SW 10 | SW 10 | SW 10 | SW 9 | SW 10 | SW 10 | SW 9 | SW 14 | SW 13 | SW 13 | SW 13 | SW 13 | |
3671 | 2092 | 1358 | 1237 | 1102 | 1026 | 937 | 1048 | 1069 | 1055 | 1075 | 1107 | 302 | 305 | 311 | 251 | 240 | 177 | 196 | 224 | 527 | 511 | 543 | 286 | |
Wind (km/h) | ||||||||||||||||||||||||
cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross | cross | 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-off | |
High Tide | 1:00PM1.24m | 1:11AM1.42m | 1:39PM1.31m | 1:46AM1.47m | 2:12PM1.37m | |||||||||||||||||||
Low Tide | 6:59AM0.30m | 7:02PM0.33m | 7:37AM0.21m | 7:39PM0.28m | 8:09AM0.15m | 8:13PM0.24m | ||||||||||||||||||
 |  |  | |  |  | |  | | | | | |  | | | | | | | | | | | |
 | 7:16 | — | — | — | — | — | — | — | 7:18 | — | — | — | — | — | — | — | 7:18 | — | — | — | — | — | — | 7:20 |
 | — | — | — | — | 6:08 | — | — | — | — | — | — | — | 6:07 | — | — | — | — | — | — | — | 6:07 | — | — | 6:06 |
— | — | — | — | — | 1 | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Temp °C | 15 | 15 | 15 | 14 | 15 | 14 | 15 | 15 | 15 | 15 | 15 | 16 | 16 | 16 | 15 | 15 | 14 | 14 | 14 | 15 | 16 | 16 | 16 | 15 |
7 | 8 | 8 | 8 | 10 | 9 | 9 | 9 | 9 | 9 | 9 | 10 | 10 | 9 | 9 | 9 | 7 | 8 | 9 | 9 | 10 | 9 | 10 | 9 | |
Swell 1 Height (m) Direction Period (s) | NW 12 | WSW 11 | WSW 10 | S 10 | S 10 | S 10 | S 10 | S 10 | S 11 | S 10 | S 11 | S 11 | SSE 11 | SSE 11 | SSE 12 | SSE 12 | SSE 12 | SSE 12 | SSE 13 | SSE 13 | SSE 13 | SW 13 | SSE 13 | SW 10 |
 kJ | 6 | 2092 | 1358 | 1160 | 1102 | 1026 | 937 | 1048 | 1069 | 1055 | 1075 | 1107 | 1045 | 1216 | 1180 | 1402 | 1084 | 1268 | 1651 | 1359 | 1152 | 511 | 853 | 184 |
Swell 2 Height (m) Direction Period (s) | — | WSW 11 | S 11 | WSW 12 | WSW 12 | WSW 11 | WSW 11 | SW 11 | SW 10 | SW 10 | SW 10 | SW 10 | SW 10 | SW 10 | SW 10 | SW 9 | SW 10 | SW 10 | SW 9 | SW 9 | SW 13 | SSW 16 | SW 13 | SW 13 |
| kJ | — | 1287 | 1174 | 1237 | 1044 | 674 | 622 | 458 | 424 | 377 | 335 | 298 | 302 | 305 | 311 | 251 | 240 | 177 | 196 | 147 | 527 | 102 | 543 | 286 |
Swell 3 Height (m) Direction Period (s) | — | — | — | NW 11 | SW 19 | SW 16 | SW 17 | SW 17 | SW 15 | SSW 15 | S 13 | S 12 | SSW 10 | S 12 | S 11 | S 11 | SW 15 | SW 14 | SW 14 | SW 14 | S 10 | S 10 | SSW 16 | SW 16 |
| kJ | — | — | — | 5 | 14 | 11 | 11 | 11 | 9 | 22 | 31 | 75 | 109 | 46 | 59 | 38 | 76 | 167 | 162 | 224 | 8 | 8 | 103 | 66 |
Wind waves Height (m) Direction Period (s) | SW 11 | S 10 | — | — | — | — | — | — | — | — | — | — | — | — | SE 4 | — | SE 4 | SE 5 | ESE 5 | SE 5 | SSE 5 | SSE 13 | SE 5 | SSE 12 |
| kJ | 3671 | 1282 | — | — | — | — | — | — | — | — | — | — | — | — | 20 | — | 39 | 41 | 44 | 41 | 67 | 1481 | 87 | 1154 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 187 | 187 | 187 | 187 | 20 | 24 | 26 | 26 | 26 | 27 | 27 | 34 | 34 | 33 | 33 | 26 | 26 | 26 | 12 | 27 | 27 | 37 | 30 | 30 |
Best forecast wave conditions in Cape Town | ||||||||||||||||||||||||
Best forecast wave conditions in South Africa | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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