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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 Saturday 09 May 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
17.7° C
(Which is normal for this time of year)How big are the waves at Extensions today?
The current surf forecast for Extensions at 10AM is: 1.3m 13s primary swell from a West-southwest direction (forecast issued at 07:00am May 09). An open ocean swell of 1.3m 13s is not directed at the surf break. The wind direction is predicted to be cross-onshore.
| Time (SAST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (09 May) | 5.5ft (1.7m) | 14s |
| Afternoon (09 May) | 4ft (1.2m) | 13s |
| Evening (09 May) | 4.5ft (1.4m) | 13s |
Table - waves today at Extensions. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastHeavy rain (total 54mm), heaviest during Mon afternoon. Very mild (max 18°C on Mon afternoon, min 12°C on Sun morning). Winds increasing (light winds from the NW on Sat morning, severe gales from the NNW by Mon morning). | ||||||||||||||||||||||||
Saturday 9 | Sunday 10 | Monday 11 | Tue 12 | |||||||||||||||||||||
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 |    |    |    |    | ||||||||||||||||||||
WSW 14 | WSW 14 | WSW 13 | WSW 13 | WSW 14 | WSW 13 | WSW 13 | NW 7 | W 8 | W 8 | SW 13 | WSW 8 | WSW 10 | WSW 11 | WSW 12 | WSW 12 | WSW 12 | WNW 9 | W 11 | W 12 | W 13 | W 13 | W 13 | W 13 | |
1265 | 1111 | 551 | 459 | 845 | 680 | 599 | 581 | 617 | 1041 | 1012 | 2037 | 5382 | 8070 | 8259 | 7567 | 5369 | 5578 | 12795 | 16962 | 19076 | 18122 | 14868 | 11611 | |
Wind (km/h) | ||||||||||||||||||||||||
cross-on | cross-on | cross | cross-on | cross-on | cross | cross | cross | cross-on | on | cross-on | on | on | on | on | cross-on | cross-on | cross-on | cross-on | cross-on | on | on | on | on | |
High Tide | 8:03AM1.01m | 9:09PM1.09m | 9:35AM1.01m | 10:24PM1.16m | 10:55AM1.07m | 11:22PM1.27m | ||||||||||||||||||
Low Tide | 2:22PM0.54m | 3:33AM0.61m | 3:46PM0.53m | 4:54AM0.52m | 4:58PM0.48m | |||||||||||||||||||
 |  | |  | |  | |  |  |  | | |  |  | | | | | |  | | | | | |
 | 7:26 | — | — | — | — | — | — | — | 7:26 | — | — | — | — | — | — | — | 7:28 | — | — | — | — | — | — | 7:28 |
 | — | — | — | — | 5:57 | — | — | — | — | — | — | — | 5:55 | — | — | — | — | — | — | — | 5:55 | — | — | 5:54 |
— | — | — | — | — | — | — | 4 | 6 | 3 | 4 | 2 | 2 | 1 | 1 | — | 1 | 4 | 5 | 7 | 4 | 1 | 2 | 4 | |
Temp °C | 16 | 15 | 16 | 16 | 16 | 16 | 16 | 14 | 13 | 15 | 12 | 13 | 13 | 14 | 14 | 15 | 15 | 15 | 17 | 18 | 18 | 18 | 18 | 17 |
15 | 12 | 12 | 10 | 10 | 9 | 7 | 6 | 7 | 5 | 3 | 1 | -1 | 2 | 3 | 5 | 4 | -1 | 3 | 6 | 8 | 9 | 10 | 10 | |
Swell 1 Height (m) Direction Period (s) | WSW 14 | WSW 14 | SE 13 | SE 13 | WSW 14 | WSW 13 | WSW 13 | WSW 13 | WSW 13 | SW 13 | SW 13 | SE 11 | SE 11 | SE 11 | SE 11 | WSW 12 | WSW 12 | S 9 | S 10 | SSE 9 | SSE 9 | SE 9 | NNW 10 | SSE 12 |
 kJ | 1265 | 1111 | 563 | 600 | 845 | 680 | 599 | 581 | 572 | 679 | 1012 | 127 | 101 | 77 | 43 | 7567 | 5369 | 54 | 68 | 29 | 17 | 23 | 776 | 15 |
Swell 2 Height (m) Direction Period (s) | SE 13 | SE 12 | WSW 13 | WSW 13 | SE 13 | SE 12 | SE 12 | SE 12 | SE 12 | SE 12 | SE 12 | SW 22 | SW 22 | SW 22 | SSE 14 | SE 11 | S 8 | SE 11 | SE 11 | SE 13 | SE 13 | SE 10 | SE 12 | SSE 12 |
| kJ | 527 | 444 | 551 | 454 | 451 | 380 | 324 | 277 | 236 | 197 | 190 | 19 | 18 | 18 | 20 | 42 | 37 | 18 | 76 | 25 | 25 | 16 | 24 | 15 |
Swell 3 Height (m) Direction Period (s) | SE 15 | SSE 14 | SW 14 | SW 14 | NW 11 | — | — | — | W 13 | — | — | — | — | SW 22 | SW 21 | SSE 14 | SE 11 | SSE 13 | — | — | SE 10 | — | ESE 10 | SE 12 |
| kJ | 217 | 168 | 466 | 459 | 5 | — | — | — | 3 | — | — | — | — | 18 | 18 | 19 | 30 | 17 | — | — | 16 | — | 10 | 23 |
Wind waves Height (m) Direction Period (s) | — | — | — | NNW 3 | NNW 4 | NW 5 | NNW 6 | NW 7 | W 8 | W 8 | W 8 | WSW 8 | WSW 10 | WSW 11 | WSW 12 | — | NW 7 | WNW 9 | W 11 | W 12 | W 13 | W 13 | W 13 | W 13 |
| kJ | — | — | — | 10 | 29 | 102 | 270 | 578 | 617 | 1041 | 897 | 2037 | 5382 | 8070 | 8259 | — | 520 | 5578 | 12795 | 16962 | 19076 | 18122 | 14868 | 11611 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 0 | 0 | 1 | 1 | 35 | 24 | 400 | 50 | 50 | 34 | 360 | 30 | 379 | 457 | 1181 | 1053 | 1055 | 457 | 360 | 378 | 1041 | 1000 | 457 | 1022 |
Best forecast wave conditions in Cape Town | ||||||||||||||||||||||||
Best forecast wave conditions in South Africa | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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