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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 20 Feb 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
16.2° C
(Which is 3.8°C colder than average for this time of year)How big are the waves at Extensions today?
The current surf forecast for Extensions at 10AM is: 1.3m 12s primary swell from a Southwest direction and 0.7m 14s secondary swell from a Northwest direction (forecast issued at 01:00am February 20). An open ocean swell of 1.9m 7s is not directed at the surf break. The wind direction is predicted to be cross-offshore.
| Time (SAST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (20 Feb) | 4.5ft (1.3m) | 12s |
| Afternoon (20 Feb) | 4ft (1.2m) | 11s |
| Evening (20 Feb) | 3ft (0.9m) | 11s |
Table - waves today at Extensions. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Friday 20 | Saturday 21 | Sunday 22 | ||||||||||||||||||||||
| 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 | 5 AM | 8 AM | 11 AM | 2 PM | 5 PM | 8 PM | |
Rating (10 max) | ||||||||||||||||||||||||
Swell Height Map |    |    |    | |||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||
| Period(s) (?) | 13 | 12 | 12 | 12 | 12 | 12 | 11 | 11 | 11 | 11 | 11 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 15 | 14 | 13 | 13 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 723 | 773 | 689 | 561 | 494 | 383 | 278 | 268 | 198 | 142 | 140 | 116 | 116 | 116 | 116 | 114 | 114 | 114 | 113 | 111 | 142 | 223 | 282 | 362 |
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 | off | cross- off | off | off | cross- off | cross- off | cross- off | cross- off | off | off | cross | cross- on | on | cross- on | on | cross- on |
High Tide / height (m) | 4:55AM 1.67 | 5:11PM 1.49 | 5:28AM 1.62 | 5:48PM 1.41 | 6:05AM 1.53 | 6:29PM 1.30 | ||||||||||||||||||
Low Tide / height (m) | 10:40PM 0.03 | 11:09AM 0.05 | 11:13PM 0.08 | 11:44AM 0.10 | 11:47PM 0.16 | 12:24PM 0.19 | ||||||||||||||||||
Friday 20 | Saturday 21 | Sunday 22 | ||||||||||||||||||||||
| Sunrise | - | - | - | 6:24 | - | - | - | - | - | - | - | 6:24 | - | - | - | - | - | - | - | 6:26 | - | - | - | - |
| Sunset | - | - | - | - | - | - | 7:34 | - | - | - | - | - | - | - | 7:32 | - | - | - | - | - | - | - | 7:31 | - |
 | | |  | | | | | | | | | | | | | | | | | | | | | |
Rain (mm) | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| Temp. °C | 20 | 20 | 20 | 20 | 21 | 22 | 21 | 21 | 20 | 20 | 20 | 20 | 22 | 23 | 23 | 24 | 23 | 22 | 20 | 19 | 20 | 21 | 21 | 20 |
| Feels °C (?) | 13 | 14 | 16 | 16 | 17 | 15 | 13 | 14 | 14 | 15 | 16 | 17 | 20 | 20 | 19 | 20 | 21 | 23 | 20 | 18 | 21 | 21 | 20 | 21 |
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FREE! Surf-Forecast.com widget for your website
The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Extensions surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.
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