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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 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 3PM is: 2.5m 17s primary swell from a South-southwest direction (forecast issued at 07:00am April 30). An open ocean swell of 1.0m 12s is not directed at the surf break. The wind direction is predicted to be cross-shore.
| Time (SAST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (30 Apr) | 4ft (1.2m) | 11s |
| Afternoon (30 Apr) | 8ft (2.5m) | 17s |
| Evening (30 Apr) | 10ft (3.0m) | 15s |
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 Fri night. Very mild (max 18°C on Sat night, min 15°C on Thu morning). Winds increasing (light winds from the SSW on Thu night, strong winds from the NNW by Fri night). | ||||||||||||||||||||||||
Thursday 30 | Friday 1 | Saturday 2 | Sun 3 | |||||||||||||||||||||
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 | 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 | SW 12 | WSW 11 | WSW 11 | WSW 11 | WSW 11 | WSW 11 | W 11 | W 11 | W 11 | |
354 | 463 | 508 | 3388 | 4285 | 4209 | 3613 | 2856 | 2310 | 2345 | 2274 | 2101 | 2185 | 1902 | 2590 | 2593 | 2894 | 2131 | 1658 | 1437 | 1375 | 1223 | 1190 | 991 | |
Wind (km/h) | ||||||||||||||||||||||||
cross-off | cross-off | cross-off | cross | cross | cross-on | on | cross-on | cross-on | cross | cross | cross-on | cross-on | cross | cross | cross | cross | cross | cross | cross | cross | cross-on | cross | cross-on | |
High Tide | 2:43PM1.40m | 2:47AM1.51m | 3:12PM1.42m | 3:17AM1.50m | 3:42PM1.41m | |||||||||||||||||||
Low Tide | 8:39AM0.12m | 8:44PM0.22m | 9:07AM0.11m | 9:14PM0.22m | 9:35AM0.12m | 9:43PM0.24m | ||||||||||||||||||
 |  | | | | | | |  |  | | |  | |  |  | | | | | | | | | |
 | 7:20 | — | — | — | — | — | — | — | 7:20 | — | — | — | — | — | — | — | 7:20 | — | — | — | — | — | — | 7:22 |
 | — | — | — | — | 6:06 | — | — | — | — | — | — | — | 6:05 | — | — | — | — | — | — | — | 6:04 | — | — | 6:02 |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 | 1 | — | — | — | — | — | — | — | |
Temp °C | 15 | 15 | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 15 | 16 | 17 | 16 | 16 | 16 | 15 | 15 | 15 | 16 | 16 | 17 | 18 | 17 | 17 |
9 | 10 | 12 | 13 | 13 | 14 | 13 | 13 | 12 | 9 | 8 | 8 | 7 | 7 | 8 | 7 | 7 | 7 | 8 | 10 | 12 | 14 | 13 | 14 | |
Swell 1 Height (m) Direction Period (s) | SSE 12 | 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 | SW 12 | WSW 11 | WSW 11 | WSW 11 | WSW 11 | WSW 11 | W 11 | W 11 | W 11 |
 kJ | 525 | 508 | 436 | 3388 | 4285 | 4209 | 3613 | 2856 | 2310 | 2345 | 2274 | 2101 | 2185 | 1902 | 2590 | 2593 | 2894 | 2131 | 1658 | 1437 | 1375 | 1223 | 1190 | 991 |
Swell 2 Height (m) Direction Period (s) | SW 11 | SW 12 | SW 10 | SSE 12 | 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 |
| kJ | 354 | 463 | 310 | 289 | 211 | 135 | 85 | 59 | 47 | 30 | 11 | 10 | 4 | 109 | 103 | 39 | 68 | 121 | 195 | 195 | 191 | 191 | 181 | 412 |
Swell 3 Height (m) Direction Period (s) | SSW 15 | SW 15 | SSW 14 | — | — | — | — | — | — | — | — | — | W 8 | SE 10 | SE 10 | W 21 | SW 21 | SSE 15 | SSE 14 | SSE 14 | WSW 18 | WSW 18 | WSW 17 | S 11 |
| kJ | 150 | 176 | 508 | — | — | — | — | — | — | — | — | — | 33 | 4 | 4 | 9 | 17 | 72 | 69 | 69 | 126 | 178 | 321 | 143 |
Wind waves Height (m) Direction Period (s) | SE 4 | SE 4 | — | — | — | — | — | — | — | NW 4 | NW 4 | NW 5 | NW 6 | NW 6 | NNW 6 | NNW 6 | NNW 6 | NNW 6 | NNW 6 | NNW 6 | NNW 6 | NNW 6 | — | — |
| kJ | 29 | 18 | — | — | — | — | — | — | — | 17 | 36 | 115 | 182 | 377 | 211 | 289 | 222 | 274 | 333 | 315 | 193 | 81 | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 30 | 25 | 26 | 26 | 5 | 5 | 1 | 1 | 1 | 35 | 167 | 167 | 167 | 264 | 167 | 224 | 225 | 50 | 167 | 26 | 25 | 24 | 26 | 1 |
Best forecast wave conditions in Cape Town | ||||||||||||||||||||||||
Best forecast wave conditions in South Africa | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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