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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 11 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
19.9° C
(Which is 1.4°C warmer than normal for this time of year)How big are the waves at Extensions today?
The current surf forecast for Extensions at 3PM is: 1.8m 13s primary swell from a Southwest direction (forecast issued at 07:00am April 11). An open ocean swell of 0.4m 14s is not directed at the surf break, a second open ocean swell of 0.5m 3s is not directed at the surf break. The wind direction is predicted to be cross-offshore.
| Time (SAST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (11 Apr) | 6.5ft (2.0m) | 13s |
| Afternoon (11 Apr) | 6ft (1.8m) | 13s |
| Evening (11 Apr) | 6ft (1.8m) | 12s |
Table - waves today at Extensions. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Saturday 11 | Sunday 12 | Monday 13 | Tue 14 | |||||||||||||||||||||
| 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 | |
Rating (10 max) | ||||||||||||||||||||||||
Swell Height Map |    |    |    |    | ||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||
| Period(s) (?) | 13 | 13 | 13 | 13 | 13 | 12 | 12 | 12 | 12 | 12 | 12 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 10 | 14 | 14 | 14 | 13 | 13 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 1367 | 1360 | 1319 | 1021 | 1173 | 944 | 913 | 960 | 869 | 736 | 711 | 563 | 488 | 422 | 338 | 293 | 254 | 216 | 212 | 293 | 686 | 790 | 919 | 1067 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross | cross | cross | cross | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross | cross- on |
High Tide / height (m) | 10:47AM 0.98 | 11:41PM 1.09 | ||||||||||||||||||||||
Low Tide / height (m) | 4:48AM 0.68 | 5:15PM 0.57 | ||||||||||||||||||||||
Saturday 11 | Sunday 12 | Monday 13 | Tue 14 | |||||||||||||||||||||
| Sunrise | - | 7:05 | - | - | - | - | - | - | - | 7:05 | - | - | - | - | - | - | - | 7:07 | - | - | - | - | - | - |
| Sunset | - | - | - | - | 6:28 | - | - | - | - | - | - | - | 6:27 | - | - | - | - | - | - | - | 6:24 | - | - | - |
 |  | | |  |  | | | | | | | | | | | | | | | | | | | |
Rain (mm) | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| Temp. °C | 18 | 18 | 18 | 19 | 19 | 19 | 19 | 18 | 18 | 18 | 18 | 18 | 18 | 18 | 18 | 17 | 17 | 17 | 17 | 17 | 18 | 18 | 19 | 19 |
| Feels °C (?) | 16 | 16 | 15 | 17 | 16 | 16 | 16 | 16 | 16 | 17 | 18 | 16 | 16 | 17 | 17 | 16 | 16 | 16 | 16 | 16 | 18 | 18 | 19 | 19 |
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Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
FREE! Surf-Forecast.com widget for your website
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