Surf Forecasts:
How big are the waves at Extensions today (27 Aug):
- Morning surf: Morning surf (27 Aug, local time) - 5ft (1.5m), 12s period with S swell.
- Afternoon surf: Afternoon surf (27 Aug, local time) - 5ft (1.6m), 11s period with S swell.
- Evening surf: Evening surf (27 Aug, local time) - 4.5ft (1.4m), 11s period with S swell.
The current surf forecast for Extensions at 6PM is: 1.2m 11s primary swell from a South direction and 1.0m 11s secondary swell from a South-southwest direction, 0.3m 3s secondary swell from a West direction (forecast issued at 01:00pm August 27). The wind direction is predicted to be onshore.
| Time (SAST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (27 Aug) | 5ft (1.5m) | 12s |
| Afternoon (27 Aug) | 5ft (1.6m) | 11s |
| Evening (27 Aug) | 4.5ft (1.4m) | 11s |
Table - waves today at Extensions. (Swell directed towards the surf break)
Short Range ForecastLight rain (total 4mm), mostly falling on Sat afternoon. Warm (max 20°C on Thu afternoon, min 13°C on Sat night). Winds increasing (calm on Thu night, fresh winds from the S by Sat night). | |||||||||||||||||||||
Thu 27 | Friday 28 | Saturday 29 | |||||||||||||||||||
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) | S 12 | S 11 | S 11 | S 11 | S 11 | S 11 | S 11 | S 11 | S 11 | WSW 14 | WSW 14 | WSW 14 | WSW 13 | WSW 13 | WSW 13 | WSW 13 | WSW 15 | WSW 14 | WSW 14 | WSW 14 | WSW 13 |
Wave Graph  | |||||||||||||||||||||
 kJ | 594 | 655 | 364 | 546 | 305 | 465 | 394 | 335 | 326 | 352 | 569 | 549 | 595 | 461 | 499 | 577 | 1038 | 1504 | 2187 | 829 | 905 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | on | on | glassy | on | on | on | cross | on | cross-on | cross-off | cross-off | cross-on | cross | cross | off | off | cross-on | cross | cross | cross |
High Tide | 3:05PM1.52m | 3:14AM1.47m | 3:33PM1.59m | 3:44AM1.50m | 4:01PM1.63m | ||||||||||||||||
Low Tide | 8:55AM0.14m | 9:15PM0.16m | 9:22AM0.08m | 9:44PM0.10m | 9:49AM0.06m | 10:14PM0.07m | |||||||||||||||
 |  | |  |  | | | | | |  | | | | | | |  | |  | | |
 | — | — | — | — | — | — | 7:09 | — | — | — | — | — | — | — | 7:09 | — | — | — | — | — | — |
 | — | — | 6:22 | — | — | — | — | — | — | — | 6:23 | — | — | — | — | — | — | — | 6:24 | — | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 | 2 | 1 | — |
Temp °C | 21 | 20 | 17 | 16 | 15 | 15 | 14 | 14 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 14 | 14 | 14 | 14 |
Feels °C | 18 | 16 | 13 | 16 | 14 | 15 | 13 | 13 | 14 | 14 | 14 | 14 | 13 | 14 | 13 | 15 | 13 | 13 | 8 | 7 | 8 |
Swell 1 Height (m) Direction Period (s) | S 12 | S 11 | S 11 | S 11 | S 11 | S 11 | S 11 | S 11 | S 11 | S 11 | WSW 14 | WSW 14 | WSW 13 | WSW 13 | WSW 13 | WSW 13 | WSW 15 | WSW 14 | WSW 14 | WSW 14 | WSW 13 |
| kJ | 594 | 655 | 364 | 546 | 305 | 465 | 394 | 335 | 326 | 267 | 569 | 549 | 595 | 461 | 499 | 577 | 1038 | 1504 | 2187 | 829 | 905 |
Swell 2 Height (m) Direction Period (s) | WSW 12 | WSW 11 | SSW 11 | WSW 11 | SSW 11 | WSW 11 | WSW 11 | WSW 16 | WSW 11 | WSW 14 | S 10 | S 10 | S 10 | S 10 | SSE 12 | SSE 12 | SSE 11 | SSE 11 | SSE 11 | SSE 11 | SSE 12 |
| kJ | 256 | 229 | 243 | 180 | 151 | 126 | 123 | 280 | 121 | 352 | 214 | 167 | 133 | 130 | 248 | 189 | 90 | 91 | 97 | 74 | 53 |
Swell 3 Height (m) Direction Period (s) | SE 9 | WSW 17 | WSW 11 | WSW 16 | WSW 11 | WSW 15 | WSW 15 | WSW 11 | WSW 16 | WSW 11 | SSE 14 | SSE 14 | SSE 13 | SSE 13 | WSW 17 | WSW 17 | SSE 13 | SE 13 | S 11 | ESE 8 | SSE 12 |
| kJ | 76 | 27 | 180 | 53 | 126 | 146 | 199 | 121 | 198 | 119 | 63 | 105 | 137 | 133 | 170 | 172 | 68 | 44 | 86 | 6 | 77 |
Wind waves Height (m) Direction Period (s) | — | WNW 3 | W 3 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | SW 10 | SW 9 | SW 8 |
| kJ | — | 1 | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 817 | 699 | 574 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 1 | 3 | 5 | 0 | 1 | 1 | 1 | 1 | 1 | 5 | 0 | 0 | 12 | 12 | 12 | 0 | 0 | 5 | 264 | 315 | 26 |
Best forecast wave conditions in Cape Town | |||||||||||||||||||||
Best forecast wave conditions in South Africa | |||||||||||||||||||||
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