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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 1 am Friday 24 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
19.0° C
(Which is 1.1°C warmer than normal for this time of year)How big are the waves at Extensions today?
The current surf forecast for Extensions at 6AM is: 1.4m 12s primary swell from a South-southwest direction and 0.1m 16s secondary swell from a West direction (forecast issued at 01:00am April 24). An open ocean swell of 0.9m 7s is not directed at the surf break. The wind direction is predicted to be offshore and the swell rating is 3.
| Time (SAST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (24 Apr) | 4.5ft (1.3m) | 12s |
| Afternoon (24 Apr) | 3.5ft (1.1m) | 11s |
| Evening (24 Apr) | 2.5ft (0.8m) | 11s |
Table - waves today at Extensions. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastHeavy rain (total 20mm), heaviest during Sun afternoon. Warm (max 21°C on Fri night, min 14°C on Sun night). Winds increasing (calm on Fri afternoon, fresh winds from the NNW by Sun morning). | ||||||||||||||||||||||||
Friday 24 | Saturday 25 | Sunday 26 | ||||||||||||||||||||||
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 | 5 PM | 8 PM | 11 PM | |
Swell Height Map |    |    |    | |||||||||||||||||||||
SSW 12 | SSW 12 | SSW 12 | S 12 | SSW 11 | S 11 | SSW 11 | SSW 11 | SW 12 | SW 11 | SW 11 | SW 11 | WSW 11 | WSW 10 | WSW 10 | WSW 10 | WSW 10 | WSW 10 | WSW 9 | W 9 | WSW 8 | WSW 8 | WSW 8 | SW 10 | |
762 | 539 | 444 | 456 | 320 | 291 | 193 | 101 | 164 | 205 | 202 | 169 | 196 | 192 | 182 | 175 | 154 | 105 | 113 | 537 | 669 | 824 | 984 | 1911 | |
Wind (km/h) | ||||||||||||||||||||||||
off | off | cross-off | off | cross-on | glassy | cross | cross-off | cross | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross | cross | cross-on | on | cross-on | cross-on | cross-on | |
High Tide | 9:22AM1.06m | 10:21PM1.16m | 11:03AM1.08m | 11:38PM1.25m | 12:12PM1.16m | |||||||||||||||||||
Low Tide | 3:10AM0.54m | 3:47PM0.50m | 4:58AM0.50m | 5:15PM0.47m | 6:10AM0.40m | 6:17PM0.40m | ||||||||||||||||||
 | |  | | | | | | | | | |  | | | | | |  |  |  | |  |  | |
 | — | 7:15 | — | — | — | — | — | — | — | 7:16 | — | — | — | — | — | — | — | 7:16 | — | — | — | — | — | — |
 | — | — | — | — | — | 6:12 | — | — | — | — | — | — | — | 6:10 | — | — | — | — | — | — | — | 6:09 | — | — |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 | 8 | 3 | 3 | 3 | |
Temp °C | 17 | 17 | 18 | 19 | 20 | 20 | 21 | 20 | 20 | 20 | 18 | 19 | 19 | 18 | 17 | 17 | 16 | 16 | 16 | 17 | 15 | 16 | 15 | 14 |
13 | 13 | 15 | 17 | 17 | 18 | 18 | 17 | 18 | 17 | 15 | 16 | 16 | 15 | 15 | 15 | 13 | 12 | 11 | 11 | 8 | 11 | 11 | 6 | |
Swell 1 Height (m) Direction Period (s) | SSW 12 | SSW 12 | SSW 12 | S 12 | SSW 11 | S 11 | SSW 11 | SSW 11 | SW 12 | SW 11 | SW 11 | SW 11 | WSW 11 | WSW 10 | WSW 10 | WSW 10 | WSW 10 | WSW 5 | W 6 | SW 15 | SW 15 | SW 14 | SW 14 | SW 13 |
 kJ | 762 | 539 | 444 | 456 | 320 | 291 | 193 | 101 | 164 | 205 | 202 | 169 | 196 | 192 | 182 | 175 | 154 | 36 | 69 | 76 | 76 | 74 | 149 | 261 |
Swell 2 Height (m) Direction Period (s) | — | W 16 | SE 7 | NW 15 | SE 7 | NW 15 | SSE 10 | SSE 10 | SSE 10 | SSE 9 | SSE 9 | SSE 9 | SSE 9 | SE 9 | SSE 7 | SSE 7 | SW 16 | WSW 10 | WSW 9 | SSE 15 | SSE 15 | SSE 15 | SSE 14 | SSE 14 |
| kJ | — | 5 | 62 | 8 | 22 | 8 | 77 | 54 | 55 | 28 | 26 | 30 | 15 | 20 | 4 | 5 | 41 | 105 | 113 | 23 | 22 | 21 | 20 | 36 |
Swell 3 Height (m) Direction Period (s) | — | — | NW 15 | W 10 | NW 15 | W 9 | ESE 8 | SW 12 | SSW 11 | ESE 8 | SE 8 | NW 13 | ESE 7 | NW 13 | SW 18 | WSW 16 | SSE 16 | SW 16 | SW 15 | NW 12 | NW 12 | NW 12 | NW 12 | NW 12 |
| kJ | — | — | 9 | 2 | 8 | 2 | 6 | 92 | 38 | 7 | 2 | 7 | 5 | 7 | 12 | 26 | 25 | 41 | 58 | 6 | 6 | 6 | 6 | 6 |
Wind waves Height (m) Direction Period (s) | SE 7 | SE 7 | SE 7 | — | — | — | — | — | — | — | — | N 3 | NNW 4 | NW 4 | NW 3 | WNW 4 | WNW 4 | NNW 4 | NNW 4 | W 9 | WSW 8 | WSW 8 | WSW 8 | SW 10 |
| kJ | 112 | 89 | 147 | — | — | — | — | — | — | — | — | 5 | 12 | 8 | 7 | 11 | 25 | 11 | 44 | 537 | 669 | 824 | 984 | 1911 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 0 | 0 | 0 | 0 | 3 | 0 | 12 | 0 | 12 | 1 | 1 | 1 | 24 | 1 | 1 | 1 | 25 | 35 | 35 | 155 | 30 | 30 | 25 | 187 |
Best forecast wave conditions in Cape Town | ||||||||||||||||||||||||
Best forecast wave conditions in South Africa | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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