Surf Forecasts:
How big are the waves at Extensions today (15 Sep):
- Morning surf: Morning surf (15 Sep, local time) - 6.5ft (2.0m), 7s period with NW swell.
- Afternoon surf: Afternoon surf (15 Sep, local time) - 4.5ft (1.3m), 16s period with SW swell.
- Evening surf: Evening surf (15 Sep, local time) - 7.5ft (2.3m), 15s period with SW swell.
The current surf forecast for Extensions at 2PM is: 1.3m 16s primary swell from a Southwest direction and 2.5m 7s secondary swell from a Northwest direction (forecast issued at 07:00am September 15). An open ocean swell of 0.1m 13s is not directed at the surf break. The wind direction is predicted to be cross-onshore.
| Time (SAST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (15 Sep) | 6.5ft (2.0m) | 7s |
| Afternoon (15 Sep) | 4.5ft (1.3m) | 16s |
| Evening (15 Sep) | 7.5ft (2.3m) | 15s |
Table - waves today at Extensions. (Swell directed towards the surf break)
Short Range ForecastModerate rain (total 13mm), heaviest on Tue night. Very mild (max 16°C on Tue morning, min 12°C on Tue night). Winds decreasing (near gales from the NNW on Tue afternoon, fresh winds from the SSE by Tue night). | |||||||||||||||||||||||
Tuesday 15 | Wednesday 16 | Thursday 17 | |||||||||||||||||||||
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) | NW 8 | NW 7 | NW 7 | SW 16 | SW 16 | SW 15 | SW 15 | WSW 14 | WSW 14 | SW 13 | SW 13 | SW 13 | WSW 13 | SW 13 | SW 13 | SW 13 | SW 12 | SW 12 | SW 12 | SW 12 | SW 12 | SW 12 | SW 12 |
Wave Graph  | |||||||||||||||||||||||
 kJ | 318 | 381 | 458 | 943 | 1194 | 1741 | 3615 | 4363 | 3460 | 3000 | 2528 | 2275 | 1316 | 1288 | 1594 | 1594 | 1404 | 1381 | 1347 | 1180 | 1092 | 929 | 836 |
Wind (km/h) | |||||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | cross-on | cross-on | cross-on | cross | cross-on | cross | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off |
High Tide | 5:29PM1.41m | 5:48AM1.25m | 5:59PM1.27m | 6:21AM1.13m | 6:34PM1.13m | ||||||||||||||||||
Low Tide | 11:18AM0.26m | 11:43PM0.28m | 11:47AM0.38m | 00:14AM0.41m | 12:18PM0.50m | ||||||||||||||||||
 |  |  | |  |  |  | |  | | | | |  | | | | | | | | | | |
 | 6:46 | — | — | — | — | — | — | — | 6:45 | — | — | — | — | — | — | — | 6:43 | — | — | — | — | — | — |
 | — | — | — | — | 6:37 | — | — | — | — | — | — | — | 6:37 | — | — | — | — | — | — | — | 6:37 | — | — |
mm | 1 | — | — | — | — | 2 | 6 | 5 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 15 | 14 | 16 | 15 | 15 | 14 | 12 | 13 | 14 | 14 | 14 | 14 | 14 | 14 | 13 | 13 | 13 | 14 | 14 | 14 | 14 | 14 | 14 |
Feels °C | 10 | 7 | 7 | 5 | 6 | 6 | 5 | 6 | 6 | 5 | 6 | 6 | 5 | 5 | 5 | 4 | 4 | 5 | 5 | 4 | 4 | 5 | 5 |
Swell 1 Height (m) Direction Period (s) | SW 11 | SW 11 | SW 11 | SW 16 | SW 16 | SW 15 | SW 15 | WSW 14 | WSW 14 | SW 13 | SW 13 | SW 13 | WSW 13 | SW 13 | SW 13 | SW 13 | SW 12 | SW 12 | SW 12 | SW 12 | SW 12 | SW 12 | SW 12 |
| kJ | 198 | 194 | 174 | 943 | 1194 | 1741 | 3615 | 4363 | 3460 | 3000 | 2528 | 2275 | 1316 | 1288 | 1594 | 1594 | 1404 | 1381 | 1347 | 1180 | 1092 | 929 | 836 |
Swell 2 Height (m) Direction Period (s) | SW 15 | SW 16 | SW 18 | SE 13 | SE 13 | SE 13 | WNW 8 | NNW 7 | SW 15 | SW 14 | SW 14 | SW 13 | SW 13 | WSW 13 | W 13 | W 12 | W 12 | W 12 | — | — | — | — | — |
| kJ | 36 | 96 | 246 | 7 | 7 | 7 | 253 | 41 | 360 | 780 | 837 | 637 | 767 | 888 | 475 | 365 | 243 | 180 | — | — | — | — | — |
Swell 3 Height (m) Direction Period (s) | ESE 13 | ESE 13 | ESE 13 | SE 13 | — | ESE 13 | NNW 7 | SW 15 | NNW 7 | ESE 12 | ESE 12 | ESE 11 | ESE 11 | — | — | — | — | — | — | — | — | — | — |
| kJ | 17 | 17 | 17 | 7 | — | 55 | 77 | 365 | 30 | 13 | 13 | 13 | 12 | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | NW 8 | NW 7 | NW 7 | NW 7 | NW 7 | NW 8 | — | — | — | — | SSW 8 | — | SSE 5 | SE 5 | SSE 6 | SSE 6 | SE 6 | SE 6 | SE 6 | SE 6 | SE 6 | SE 6 | SE 6 |
| kJ | 318 | 381 | 458 | 722 | 859 | 803 | — | — | — | — | 581 | — | 76 | 96 | 262 | 277 | 293 | 293 | 287 | 293 | 376 | 390 | 328 |
Nearest Offshore or Glassy | |||||||||||||||||||||||
Distance (km) | 24 | 167 | 264 | 271 | 167 | 242 | 30 | 55 | 220 | 271 | 318 | 226 | 224 | 225 | 37 | 37 | 37 | 41 | 226 | 1285 | 1310 | 226 | 225 |
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