Surf Forecasts:
How big are the waves at Extensions today (09 Aug):
- Morning surf: Morning surf (09 Aug, local time) - 10ft (3.0m), 12s period with SW swell.
- Afternoon surf: Afternoon surf (09 Aug, local time) - 11ft (3.5m), 12s period with SSW swell.
- Evening surf: Evening surf (09 Aug, local time) - 10ft (3.0m), 12s period with SW swell.
The current surf forecast for Extensions at 9AM is: 3.0m 12s primary swell from a Southwest direction (forecast issued at 01:00am August 09). An open ocean swell of 1.5m 6s is not directed at the surf break. The wind direction is predicted to be cross-offshore.
| Time (SAST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (09 Aug) | 10ft (3.0m) | 12s |
| Afternoon (09 Aug) | 11ft (3.5m) | 12s |
| Evening (09 Aug) | 10ft (3.0m) | 12s |
Table - waves today at Extensions. (Swell directed towards the surf break)
Short Range ForecastLight rain (total 5mm), mostly falling on Sun morning. Very mild (max 15°C on Tue afternoon, min 11°C on Mon night). Winds decreasing (near gales from the ESE on Mon night, light winds from the ENE by Tue night). | ||||||||||||||||||||||||
Sunday 9 | Monday 10 | Tuesday 11 | ||||||||||||||||||||||
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 | 11 PM | |
Swell Height Map |  |  |  |  |  |  |  |  |  | |||||||||||||||
Wave Height (m) Direction Period (s) | SW 13 | SW 13 | SW 12 | SW 12 | SSW 12 | SSW 12 | SW 12 | SW 12 | SSW 11 | SW 11 | SSW 11 | SSW 11 | S 11 | SSW 10 | SSW 14 | SSW 14 | S 13 | SSW 13 | SSW 13 | SSW 12 | SSW 12 | SSW 12 | SW 23 | SW 22 |
Wave Graph  | ||||||||||||||||||||||||
 kJ | 4020 | 3785 | 3021 | 3622 | 3806 | 3826 | 2525 | 2116 | 2209 | 1580 | 1689 | 1585 | 1544 | 640 | 975 | 2590 | 3347 | 1561 | 1301 | 904 | 644 | 475 | 1046 | 1528 |
Wind (km/h) | ||||||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | 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 | off | off | off | off | off | off | off | off | off |
High Tide | 11:55PM1.25m | 12:49PM1.22m | 1:06AM1.35m | 1:46PM1.37m | 2:01AM1.45m | 2:32PM1.51m | ||||||||||||||||||
Low Tide | 6:33AM0.34m | 6:57PM0.39m | 7:33AM0.21m | 7:56PM0.25m | 8:20AM0.10m | 8:44PM0.13m | ||||||||||||||||||
 |  |  |  | |  | |  | | |  |  | | |  | | | | | | | | | | |
 | — | 7:31 | — | — | — | — | — | — | — | 7:31 | — | — | — | — | — | — | — | 7:30 | — | — | — | — | — | — |
 | — | — | — | — | — | 6:10 | — | — | — | — | — | — | — | 6:10 | — | — | — | — | — | — | — | 6:12 | — | — |
mm | — | 2 | 2 | 2 | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 13 | 13 | 12 | 12 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 12 | 12 | 11 | 11 | 12 | 14 | 15 | 14 | 13 |
Feels °C | 8 | 6 | 3 | 1 | 2 | 3 | 3 | 4 | 4 | 4 | 4 | 4 | 3 | 3 | 3 | 2 | 2 | 1 | 2 | 4 | 7 | 7 | 6 | 6 |
Swell 1 Height (m) Direction Period (s) | SW 13 | SW 13 | SW 12 | SW 12 | SW 12 | SW 12 | SW 12 | SW 12 | SSW 11 | SW 11 | SSW 11 | S 18 | S 13 | SSW 10 | SSW 10 | SSW 14 | WSW 11 | SSW 13 | SSW 13 | SSW 12 | SSW 12 | SSW 12 | SSW 11 | SW 22 |
| kJ | 4020 | 3785 | 3021 | 2735 | 1835 | 2766 | 2525 | 2116 | 2209 | 1580 | 1689 | 6 | 130 | 640 | 653 | 2590 | 66 | 1561 | 1301 | 904 | 644 | 475 | 307 | 1528 |
Swell 2 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | SSW 13 | WSW 11 | SSW 14 | WSW 11 | WSW 11 | WSW 11 | W 16 | WSW 10 | WSW 10 | SW 24 | SW 23 | SW 11 |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | 239 | 317 | 975 | 101 | 91 | 66 | 5 | 20 | 40 | 455 | 1046 | 278 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | SSW 14 | SW 11 | — | — | — | W 27 | SW 26 | SW 25 | WSW 10 | WSW 10 | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | 471 | 268 | — | — | — | 14 | 26 | 159 | 40 | 20 | — |
Wind waves Height (m) Direction Period (s) | — | — | S 6 | SW 12 | SSW 12 | SSW 12 | SSE 7 | SSE 8 | SSW 11 | — | SSW 11 | SSW 11 | S 11 | SE 6 | SE 6 | SE 6 | S 13 | SE 7 | SE 7 | SE 7 | SE 8 | SE 8 | SE 8 | SE 8 |
| kJ | — | — | 151 | 3622 | 3806 | 3826 | 263 | 285 | 1768 | — | 1322 | 1585 | 1544 | 203 | 302 | 278 | 3347 | 355 | 404 | 421 | 364 | 373 | 551 | 569 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 34 | 187 | 315 | 378 | 587 | 937 | 1037 | 417 | 37 | 61 | 37 | 224 | 187 | 187 | 41 | 41 | 37 | 37 | 37 | 26 | 25 | 25 | 25 | 18 |
Best forecast wave conditions in Cape Town | ||||||||||||||||||||||||
Best forecast wave conditions in South Africa | ||||||||||||||||||||||||
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