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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 Friday 27 Mar 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
17.2° C
(Which is 2.1°C colder than average for this time of year)How big are the waves at Extensions today?
The current surf forecast for Extensions at 3PM is: 1.2m 8s primary swell from a West-southwest direction and 0.6m 12s secondary swell from a South-southwest direction, 0.7m 4s secondary swell from a Northwest direction (forecast issued at 07:00am March 27). The wind direction is predicted to be cross-onshore.
| Time (SAST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (27 Mar) | 4ft (1.2m) | 9s |
| Afternoon (27 Mar) | 4ft (1.2m) | 8s |
| Evening (27 Mar) | 5ft (1.5m) | 9s |
Table - waves today at Extensions. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Friday 27 | Saturday 28 | Sunday 29 | Mon 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 | |
Rating (10 max) | ||||||||||||||||||||||||
Swell Height Map |    |    |    |    | ||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||
| Period(s) (?) | 9 | 9 | 9 | 8 | 9 | 9 | 9 | 8 | 9 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 11 | 10 | 10 | 10 | 13 | 13 | 12 | 12 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 335 | 252 | 194 | 176 | 238 | 352 | 423 | 380 | 732 | 1555 | 2083 | 2208 | 2010 | 1484 | 1168 | 1009 | 881 | 653 | 546 | 441 | 816 | 601 | 421 | 325 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | on | on | on | cross- on | on | on | cross- on | cross- on | cross | cross | cross | cross | cross | cross | cross- off | cross- off | cross- off |
High Tide / height (m) | 11:24AM 1.09 | 12:11AM 1.19 | 12:38PM 1.19 | 1:05AM 1.33 | 1:27PM 1.30 | 1:45AM 1.45 | ||||||||||||||||||
Low Tide / height (m) | 5:12AM 0.56 | 5:52PM 0.47 | 6:35AM 0.43 | 6:52PM 0.36 | 7:26AM 0.30 | 7:35PM 0.25 | ||||||||||||||||||
Friday 27 | Saturday 28 | Sunday 29 | Mon 30 | |||||||||||||||||||||
| Sunrise | - | 6:54 | - | - | - | - | - | - | - | 6:54 | - | - | - | - | - | - | - | 6:54 | - | - | - | - | - | - |
| Sunset | - | - | - | - | 6:47 | - | - | - | - | - | - | - | 6:46 | - | - | - | - | - | - | - | 6:45 | - | - | - |
 |  | |  | |  | |  | | | | | | | | | | | | | | | | | |
Rain (mm) | - | - | - | - | - | - | - | 1 | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| Temp. °C | 18 | 18 | 19 | 20 | 20 | 19 | 19 | 19 | 18 | 18 | 19 | 19 | 19 | 19 | 19 | 18 | 18 | 18 | 18 | 18 | 18 | 18 | 18 | 17 |
| Feels °C (?) | 18 | 17 | 16 | 16 | 16 | 16 | 17 | 16 | 14 | 15 | 16 | 16 | 16 | 17 | 18 | 17 | 17 | 17 | 17 | 16 | 15 | 15 | 14 | 13 |
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Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
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