Surf Forecasts:
How big are the waves at Extensions today (16 Aug):
- Morning surf: Morning surf (16 Aug, local time) - 7ft (2.1m), 14s period with WSW swell.
- Afternoon surf: Afternoon surf (16 Aug, local time) - 7.5ft (2.3m), 14s period with WSW swell.
- Evening surf: Evening surf (16 Aug, local time) - 10ft (3.0m), 14s period with WSW swell.
The current surf forecast for Extensions at 10AM is: 2.1m 14s primary swell from a West-southwest direction and 0.3m 3s secondary swell from a North-northwest direction (forecast issued at 07:00am August 16). An open ocean swell of 0.2m 10s is not directed at the surf break. The wind direction is predicted to be cross-shore.
| Time (SAST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (16 Aug) | 7ft (2.1m) | 14s |
| Afternoon (16 Aug) | 7.5ft (2.3m) | 14s |
| Evening (16 Aug) | 10ft (3.0m) | 14s |
Table - waves today at Extensions. (Swell directed towards the surf break)
Short Range ForecastSome drizzle, heaviest during Mon afternoon. Very mild (max 17°C on Sun night, min 12°C on Tue night). Mainly fresh winds. | |||||||||||||||||||||||
Sunday 16 | Monday 17 | Tuesday 18 | |||||||||||||||||||||
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 | |
Swell Height Map |  |  |  |  |  |  |  |  |  | ||||||||||||||
Wave Height (m) Direction Period (s) | WSW 13 | WSW 13 | WSW 14 | WSW 14 | WSW 14 | WSW 14 | WSW 14 | WSW 14 | WSW 13 | WSW 13 | WSW 13 | WSW 13 | WSW 13 | WSW 13 | WSW 13 | WSW 13 | WSW 13 | WSW 12 | WSW 12 | SW 13 | SW 13 | SW 12 | SW 12 |
Wave Graph  | |||||||||||||||||||||||
 kJ | 1534 | 1535 | 1773 | 2144 | 2671 | 3313 | 3785 | 3703 | 3403 | 2897 | 2709 | 2477 | 2354 | 2220 | 2116 | 1766 | 2196 | 2001 | 1197 | 1945 | 2984 | 2756 | 2789 |
Wind (km/h) | |||||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross | cross-on | cross-on | cross-on | cross-on | cross-on | cross | cross | cross | cross-on | cross-on | cross-on | on | on | cross-on | cross | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off |
High Tide | 5:39PM1.55m | 5:56AM1.33m | 6:12PM1.43m | 6:31AM1.21m | 6:47PM1.29m | ||||||||||||||||||
Low Tide | 11:24AM0.13m | 11:56PM0.19m | 11:56AM0.25m | 00:31AM0.30m | 12:29PM0.37m | ||||||||||||||||||
 |  |  | | | |  | | | |  |  | |  | | | | | | | | | | |
 | 7:24 | — | — | — | — | — | — | — | 7:24 | — | — | — | — | — | — | — | 7:22 | — | — | — | — | — | — |
 | — | — | — | — | 6:15 | — | — | — | — | — | — | — | 6:15 | — | — | — | — | — | — | — | 6:16 | — | — |
mm | — | — | — | — | — | — | — | — | — | — | — | 1 | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 14 | 14 | 15 | 16 | 16 | 16 | 16 | 16 | 17 | 17 | 17 | 16 | 16 | 16 | 16 | 15 | 15 | 14 | 14 | 14 | 14 | 13 | 13 |
Feels °C | 11 | 10 | 11 | 11 | 11 | 13 | 13 | 12 | 13 | 13 | 14 | 13 | 14 | 14 | 15 | 14 | 13 | 12 | 12 | 10 | 9 | 7 | 8 |
Swell 1 Height (m) Direction Period (s) | WSW 13 | WSW 13 | WSW 14 | WSW 14 | WSW 14 | WSW 14 | WSW 14 | WSW 14 | WSW 13 | WSW 13 | WSW 13 | WSW 13 | WSW 13 | WSW 13 | WSW 13 | WSW 13 | WSW 13 | WSW 12 | WSW 12 | SW 13 | SW 13 | SW 12 | SW 12 |
| kJ | 1534 | 1535 | 1773 | 2144 | 2671 | 3313 | 3785 | 3703 | 3403 | 2897 | 2709 | 2477 | 2354 | 2220 | 2116 | 1766 | 2196 | 2001 | 1197 | 1945 | 2984 | 2756 | 2789 |
Swell 2 Height (m) Direction Period (s) | ESE 10 | ESE 10 | ESE 10 | ESE 10 | — | — | — | — | — | — | — | — | WSW 16 | E 10 | E 10 | SW 14 | W 12 | E 11 | SW 13 | WSW 12 | — | — | — |
| kJ | 18 | 18 | 9 | 9 | — | — | — | — | — | — | — | — | 211 | 8 | 8 | 357 | 884 | 2 | 864 | 609 | — | — | — |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | SW 16 | — | — | E 11 | E 11 | E 11 | E 11 | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | 65 | — | — | 9 | 9 | 2 | 2 | — | — | — | — |
Wind waves Height (m) Direction Period (s) | — | NW 3 | NNW 3 | WNW 4 | — | — | — | — | — | N 3 | NNW 3 | N 3 | — | — | — | — | — | — | — | — | — | — | SE 4 |
| kJ | — | 3 | 1 | 8 | — | — | — | — | — | 5 | 6 | 3 | — | — | — | — | — | — | — | — | — | — | 19 |
Nearest Offshore or Glassy | |||||||||||||||||||||||
Distance (km) | 1 | 1 | 1 | 1 | 1 | 25 | 3 | 1 | 20 | 20 | 26 | 20 | 1 | 1 | 3 | 1 | 5 | 5 | 0 | 0 | 12 | 12 | 30 |
Best forecast wave conditions in Cape Town | |||||||||||||||||||||||
Best forecast wave conditions in South Africa | |||||||||||||||||||||||
Header Global | |||||||||||||||||||||||
- Map Icons:
Break
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
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