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Extensions Surf Forecast
/ Cape Town (69 surf breaks) /
Surf Forecasts:
Extensions surfForecast / Cape Town / South Africa
48hr Weather and Surf, issued 1 pm Saturday 13 Sep 2025 SAST
How big are the waves at Extensions today?
The current surf forecast for Extensions at 8PM is: 3.0m 15s primary swell from a Southwest direction (forecast issued at 01:00pm September 13). An open ocean swell of 0.9m 4s is not directed at the surf break. The wind direction is predicted to be cross-offshore.
| Time (SAST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (13 Sep) | 7.5ft (2.3m) | 14s |
| Afternoon (13 Sep) | 5.5ft (1.7m) | 16s |
| Evening (13 Sep) | 10ft (3.0m) | 15s |
Table - waves today at Extensions. (Swell directed towards the surf break)
Saturday 13 | Sunday 14 | Monday 15 | Tuesday 16 | |||||||||||||||||||||
| 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 | 16 | 16 | 15 | 15 | 14 | 14 | 14 | 14 | 13 | 13 | 13 | 13 | 13 | 12 | 12 | 12 | 12 | 11 | 11 | 12 | 12 | 12 | 12 |
Wave (?)Graph  | ||||||||||||||||||||||||
 kJ (?) | 1783 | 1506 | 4288 | 4650 | 4295 | 4139 | 3665 | 3017 | 2534 | 2036 | 1783 | 1435 | 1249 | 1060 | 1155 | 1369 | 1685 | 1551 | 1585 | 2425 | 4182 | 5885 | 6797 | 7149 |
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- on | cross- on | on | on | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | cross- on | on | on | cross- on | cross- on |
High Tide / height (m) | 7:08PM 1.28 | 7:52AM 1.09 | 8:28PM 1.12 | 9:45AM 1.02 | 10:34PM 1.07 | |||||||||||||||||||
Low Tide / height (m) | 12:46PM 0.38 | 1:35AM 0.42 | 1:58PM 0.53 | 3:13AM 0.53 | 4:09PM 0.60 | 5:18AM 0.52 | ||||||||||||||||||
Saturday 13 | Sunday 14 | Monday 15 | Tuesday 16 | |||||||||||||||||||||
| Sunrise | - | - | - | - | - | - | - | 6:47 | - | - | - | - | - | - | - | 6:46 | - | - | - | - | - | - | - | 6:45 |
| Sunset | - | - | 6:35 | - | - | - | - | - | - | - | 6:36 | - | - | - | - | - | - | - | 6:37 | - | - | - | - | - |
 | | |  | | | | | | | | | |  | | | | |  |  | |  | | | |
Rain (mm) | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | 1 | 1 | 1 | 1 | - |
| Temp. °C | 14 | 15 | 15 | 15 | 15 | 15 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 15 | 15 | 15 | 16 | 16 | 15 | 15 | 14 |
| Feels °C (?) | 8 | 9 | 9 | 10 | 11 | 12 | 11 | 11 | 13 | 13 | 11 | 11 | 12 | 11 | 10 | 9 | 8 | 7 | 7 | 8 | 7 | 6 | 8 | 7 |
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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
Continuing clean conditions at Extensions (calm at Meadowridge wx 34 km from Extensions). A 2.5m groundswell from the SSW
34 km away, 1 h 9 min ago
FREE! Surf-Forecast.com widget for your website
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