- Forecast
- Maps
- Live
- Weather State
- Spot Information
Extensions Surf Forecast
/ Cape Town (69 surf breaks) /
Surf Forecasts:
Extensions surfForecast / Cape Town / South Africa
48hr Weather and Surf, issued 1 pm Saturday 23 Aug 2025 SAST
How big are the waves at Extensions today?
The current surf forecast for Extensions at 3PM is: 5.5m 14s primary swell from a Southwest direction (forecast issued at 01:00pm August 23). The wind direction is predicted to be onshore.
| Time (SAST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (23 Aug) | 15ft (4.5m) | 13s |
| Afternoon (23 Aug) | 18ft (5.5m) | 14s |
| Evening (23 Aug) | 16ft (5.0m) | 14s |
Table - waves today at Extensions. (Swell directed towards the surf break)
Saturday 23 | Sunday 24 | Monday 25 | Tuesday 26 | |||||||||||||||||||||
| 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 | 5 AM | 8 AM | |
Rating (10 max) | ||||||||||||||||||||||||
Swell Height Map |    |    |    |    | ||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||
| Period(s) (?) | 13 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 13 | 13 | 13 | 13 | 13 | 13 | 12 | 12 | 12 | 14 | 13 | 13 | 12 | 11 | 11 |
Wave (?)Graph  | ||||||||||||||||||||||||
| Energy (?) | 8560 | 12205 | 12205 | 11742 | 10539 | 9547 | 8354 | 7152 | 5893 | 5140 | 4445 | 3876 | 3208 | 2878 | 2536 | 2148 | 2026 | 1839 | 2066 | 2129 | 1780 | 1435 | 1233 | 1164 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | on | on | on | on | on | on | on | on | on | cross- on | cross- on | cross | cross- off | cross- off | cross | cross | cross | cross- on | cross | cross | cross- off | cross- off | cross- off | cross- off |
High Tide / height (m) | 3:35PM 1.59 | 3:47AM 1.49 | 4:05PM 1.61 | 4:18AM 1.47 | 4:34PM 1.59 | 4:47AM 1.43 | ||||||||||||||||||
Low Tide / height (m) | 9:25AM 0.07 | 9:49PM 0.10 | 9:55AM 0.07 | 10:19PM 0.10 | 10:23AM 0.09 | 10:49PM 0.13 | ||||||||||||||||||
Saturday 23 | Sunday 24 | Monday 25 | Tuesday 26 | |||||||||||||||||||||
| Sunrise | - | - | - | - | - | - | - | 7:15 | - | - | - | - | - | - | - | 7:13 | - | - | - | - | - | - | - | 7:13 |
| Sunset | - | - | 6:21 | - | - | - | - | - | - | - | 6:21 | - | - | - | - | - | - | - | 6:22 | - | - | - | - | - |
 |  |  |  | |  | |  |  | | | | | |  | | | | | | | | | | |
Rain (mm) | 1 | 1 | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| Temp. °C | 14 | 14 | 14 | 14 | 14 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 14 | 14 | 14 | 14 | 14 | 13 | 13 | 12 |
| Feels °C (?) | 5 | 6 | 7 | 8 | 7 | 7 | 6 | 8 | 9 | 8 | 9 | 9 | 10 | 9 | 9 | 9 | 10 | 11 | 11 | 10 | 10 | 7 | 7 | 6 |
- Map Icons:
Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
Recent Eyeball Surf Reports for Cape Town
Cross-on wind has become cross-off at Extensions (light winds from the NE at Cape Point (68916 -0) 3 km from Extensions). A 4.7m groundswell from the SW is too big for here
2 h 22 min ago
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.
Nearest