Surf Forecasts:
How big are the waves at Extensions today (22 Aug):
- Afternoon surf: Afternoon surf (22 Aug, local time) - 5ft (1.5m), 11s period with WSW swell.
- Evening surf: Evening surf (22 Aug, local time) - 5ft (1.5m), 10s period with S swell.
The current surf forecast for Extensions at 12AM is: 1.5m 10s primary swell from a South direction and 1.3m 11s secondary swell from a West-southwest direction, 1.3m 11s secondary swell from a West-southwest direction (forecast issued at 07:00pm August 21). The wind direction is predicted to be cross-shore.
| Time (SAST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (22 Aug) | - | - |
| Afternoon (22 Aug) | 5ft (1.5m) | 11s |
| Evening (22 Aug) | 5ft (1.5m) | 10s |
Table - waves today at Extensions. (Swell directed towards the surf break)
Short Range ForecastMostly dry. Very mild (max 16°C on Fri night, min 12°C on Mon morning). Wind will be generally light. | |||||||||||||||||||
Fri 21 | Saturday 22 | Sunday 23 | |||||||||||||||||
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 11 | S 10 | S 10 | SSW 10 | SSW 10 | SSW 13 | SSW 12 | SSW 13 | SW 11 | SW 11 | SW 12 | WSW 14 | WSW 13 | WSW 13 | WSW 13 | WSW 13 | WSW 12 | WSW 12 | WSW 12 |
Wave Graph  | |||||||||||||||||||
 kJ | 458 | 535 | 468 | 392 | 320 | 633 | 501 | 469 | 756 | 1010 | 1107 | 2121 | 1760 | 1891 | 1703 | 1651 | 1631 | 1435 | 985 |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-off | cross | cross | on | cross-on | cross-on | cross-on | cross-on | on | glassy | cross | cross-off | cross-off | cross-off | cross | cross-off | cross-off | cross-off |
High Tide | 10:23PM0.98m | 11:55AM0.96m | 00:07AM1.03m | 12:59PM1.06m | |||||||||||||||
Low Tide | 3:46PM0.71m | 5:32AM0.62m | 6:06PM0.66m | 6:47AM0.52m | 7:07PM0.56m | ||||||||||||||
 |  |  |  | | | |  |  | | | | | | | | | | | |
 | — | — | — | — | 7:18 | — | — | — | — | — | — | — | 7:16 | — | — | — | — | — | — |
 | 6:19 | — | — | — | — | — | — | — | 6:20 | — | — | — | — | — | — | — | 6:21 | — | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 15 | 16 | 14 | 14 | 14 | 14 | 15 | 16 | 15 | 15 | 15 | 14 | 13 | 13 | 13 | 13 | 13 | 13 | 13 |
Feels °C | 10 | 13 | 10 | 12 | 12 | 11 | 11 | 12 | 12 | 14 | 15 | 13 | 11 | 12 | 11 | 11 | 11 | 11 | 10 |
Swell 1 Height (m) Direction Period (s) | WSW 11 | WSW 11 | WSW 11 | SSW 10 | SSW 10 | SSW 13 | SSW 12 | SSW 13 | SW 11 | SW 11 | SW 12 | WSW 14 | WSW 13 | WSW 13 | WSW 13 | WSW 13 | WSW 12 | WSW 12 | WSW 12 |
| kJ | 458 | 427 | 366 | 392 | 320 | 633 | 501 | 469 | 756 | 1010 | 1107 | 2121 | 1760 | 1891 | 1703 | 1651 | 1631 | 1435 | 985 |
Swell 2 Height (m) Direction Period (s) | SSW 10 | SSW 10 | WSW 11 | WSW 11 | WSW 11 | WSW 10 | WSW 10 | WSW 10 | WSW 16 | WSW 16 | WSW 15 | SSW 12 | SSW 11 | SSW 12 | SSW 11 | SSW 11 | — | SSW 11 | SSW 11 |
| kJ | 310 | 352 | 366 | 291 | 291 | 216 | 198 | 202 | 26 | 97 | 334 | 131 | 223 | 57 | 109 | 47 | — | 222 | 335 |
Swell 3 Height (m) Direction Period (s) | — | — | — | SSW 14 | SSW 14 | SE 4 | — | W 17 | — | N 3 | WSW 11 | SW 11 | — | — | — | — | — | — | — |
| kJ | — | — | — | 81 | 161 | 3 | — | 6 | — | 1 | 133 | 189 | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | SSE 5 | S 10 | S 10 | — | — | — | NW 2 | NNW 3 | NNW 3 | — | — | — | — | — | — | — | — | — | — |
| kJ | 52 | 535 | 468 | — | — | — | 1 | 3 | 4 | — | — | — | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 27 | 12 | 26 | 5 | 1 | 1 | 1 | 1 | 1 | 1 | 0 | 12 | 0 | 0 | 0 | 12 | 0 | 0 | 0 |
Best forecast wave conditions in Cape Town | |||||||||||||||||||
Best forecast wave conditions in South Africa | |||||||||||||||||||
Header Global | |||||||||||||||||||
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