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) - 11ft (3.5m), 12s period with SSW swell.
The current surf forecast for Extensions at 1PM is: 3.5m 12s primary swell from a South-southwest direction and 3.0m 12s secondary swell from a Southwest direction (forecast issued at 07:00am August 09). 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) | 11ft (3.5m) | 12s |
Table - waves today at Extensions. (Swell directed towards the surf break)
Short Range ForecastLight rain (total 4mm), mostly falling on Sun morning. Very mild (max 16°C on Tue afternoon, min 11°C on Tue morning). Winds decreasing (strong winds from the ESE on Mon night, light winds from the ENE by Tue night). | |||||||||||||||||||||||
Sunday 9 | Monday 10 | Tuesday 11 | |||||||||||||||||||||
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 12 | SW 12 | SW 12 | SSW 12 | SSW 12 | SW 12 | SW 11 | SSW 11 | SSW 11 | SW 11 | S 10 | S 10 | SSW 14 | SSW 14 | SSW 13 | SSW 13 | SSW 13 | SSW 12 | SSW 12 | SSW 12 | SW 23 | SW 22 |
Wave Graph  | |||||||||||||||||||||||
 kJ | 3932 | 2907 | 2597 | 3911 | 3959 | 3285 | 2116 | 1781 | 1969 | 1823 | 792 | 922 | 683 | 975 | 2648 | 1960 | 1699 | 1420 | 904 | 680 | 483 | 1055 | 1542 |
Wind (km/h) | |||||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross-off | cross-off | cross | 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 |
High Tide | 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 | 1 | — | — | — | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 13 | 12 | 13 | 13 | 13 | 13 | 13 | 13 | 12 | 13 | 13 | 12 | 12 | 13 | 12 | 12 | 12 | 11 | 11 | 14 | 16 | 13 | 12 |
Feels °C | 5 | 2 | 2 | 2 | 3 | 3 | 3 | 3 | 3 | 4 | 4 | 3 | 2 | 3 | 2 | 2 | 4 | 2 | 4 | 8 | 9 | 4 | 5 |
Swell 1 Height (m) Direction Period (s) | SW 13 | SW 12 | SW 12 | SW 12 | SW 12 | SSW 12 | SW 12 | SW 11 | SW 11 | — | SW 11 | SW 11 | S 10 | SSW 10 | SSW 14 | SSW 13 | SSW 13 | SSW 13 | SSW 12 | SSW 12 | SSW 12 | SSW 11 | SW 22 |
| kJ | 3932 | 2907 | 2597 | 2993 | 3151 | 3285 | 2116 | 1781 | 1605 | — | 792 | 627 | 683 | 769 | 2648 | 1960 | 1699 | 1420 | 904 | 680 | 483 | 307 | 1542 |
Swell 2 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | S 18 | SSW 13 | SW 11 | SSW 14 | WSW 11 | WSW 11 | WSW 11 | W 16 | WSW 10 | WSW 10 | SW 24 | SW 23 | SW 11 |
| kJ | — | — | — | — | — | — | — | — | — | — | 6 | 184 | 415 | 975 | 101 | 66 | 66 | 5 | 20 | 20 | 455 | 1055 | 278 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | SSW 14 | WSW 10 | — | — | — | W 27 | SW 26 | SW 25 | WSW 10 | WSW 10 | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | 572 | 229 | — | — | — | 14 | 26 | 161 | 21 | 20 | — |
Wind waves Height (m) Direction Period (s) | — | S 6 | S 7 | SSW 12 | SSW 12 | SSE 8 | SSE 8 | SSE 8 | SSW 11 | SSW 11 | S 9 | S 10 | SE 6 | SE 6 | SE 6 | SE 7 | SE 7 | SE 7 | SE 7 | SE 8 | SE 8 | SE 8 | SE 8 |
| kJ | — | 212 | 404 | 3911 | 3959 | 298 | 315 | 264 | 1969 | 1823 | 723 | 922 | 138 | 256 | 230 | 298 | 269 | 277 | 301 | 345 | 435 | 537 | 555 |
Nearest Offshore or Glassy | |||||||||||||||||||||||
Distance (km) | 187 | 318 | 453 | 1888 | 1428 | 1480 | 337 | 226 | 225 | 61 | 224 | 61 | 187 | 41 | 41 | 30 | 26 | 26 | 18 | 18 | 18 | 26 | 18 |
Best forecast wave conditions in Cape Town | |||||||||||||||||||||||
Best forecast wave conditions in South Africa | |||||||||||||||||||||||
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