Surf Forecasts:
How big are the waves at Extensions today (28 Aug):
- Afternoon surf: Afternoon surf (28 Aug, local time) - 3.5ft (1.0m), 14s period with WSW swell.
- Evening surf: Evening surf (28 Aug, local time) - 4ft (1.2m), 14s period with WSW swell.
The current surf forecast for Extensions at 10PM is: 1.2m 14s primary swell from a West-southwest direction and 0.9m 10s secondary swell from a South direction (forecast issued at 07:00pm August 28). The wind direction is predicted to be cross-onshore.
| Time (SAST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (28 Aug) | - | - |
| Afternoon (28 Aug) | 3.5ft (1.0m) | 14s |
| Evening (28 Aug) | 4ft (1.2m) | 14s |
Table - waves today at Extensions. (Swell directed towards the surf break)
Short Range ForecastMostly dry. Very mild (max 17°C on Sat morning, min 11°C on Sun night). Mainly fresh winds. | |||||||||||||||||||
Fri 28 | Saturday 29 | Sunday 30 | |||||||||||||||||
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 14 | WSW 14 | WSW 13 | WSW 13 | WSW 13 | WSW 13 | WSW 15 | WSW 14 | SW 10 | WSW 14 | WSW 13 | WSW 13 | WSW 13 | WSW 13 | WSW 13 | WSW 12 | SW 12 | WSW 12 | WSW 12 |
Wave Graph  | |||||||||||||||||||
 kJ | 569 | 549 | 595 | 491 | 468 | 577 | 1145 | 1809 | 768 | 841 | 905 | 1093 | 2460 | 2385 | 2117 | 1985 | 1799 | 1510 | 1313 |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross | cross | cross-off | cross-off | cross-off | glassy | cross-on | cross-on | cross | cross | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off |
High Tide | 3:33PM1.59m | 3:44AM1.50m | 4:01PM1.63m | 4:15AM1.50m | 4:31PM1.63m | ||||||||||||||
Low Tide | 9:44PM0.10m | 9:49AM0.06m | 10:14PM0.07m | 10:18AM0.07m | 10:45PM0.07m | ||||||||||||||
 |  | | | |  | | | | | | |  |  | | | |  | | |
 | — | — | — | — | 7:09 | — | — | — | — | — | — | — | 7:07 | — | — | — | — | — | — |
 | 6:23 | — | — | — | — | — | — | — | 6:24 | — | — | — | — | — | — | — | 6:25 | — | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 15 | 15 | 15 | 15 | 15 | 15 | 17 | 14 | 15 | 15 | 15 | 14 | 13 | 13 | 13 | 13 | 13 | 12 | 12 |
Feels °C | 14 | 14 | 12 | 14 | 12 | 14 | 16 | 8 | 10 | 9 | 9 | 8 | 6 | 6 | 7 | 7 | 6 | 5 | 5 |
Swell 1 Height (m) Direction Period (s) | WSW 14 | WSW 14 | WSW 13 | WSW 13 | WSW 13 | WSW 13 | WSW 15 | SSE 11 | WSW 14 | SW 8 | SW 8 | SW 8 | WSW 13 | WSW 13 | WSW 13 | WSW 12 | SW 12 | WSW 12 | WSW 12 |
| kJ | 569 | 549 | 595 | 491 | 468 | 577 | 1145 | 91 | 756 | 634 | 588 | 511 | 2460 | 2385 | 2117 | 1985 | 1799 | 1510 | 1313 |
Swell 2 Height (m) Direction Period (s) | S 10 | S 10 | S 10 | S 10 | SSE 12 | S 12 | SSE 11 | SE 13 | SSE 11 | WSW 14 | WSW 13 | WSW 13 | SSE 11 | SSE 11 | SSE 11 | SSE 10 | SSE 10 | SSE 10 | SSE 10 |
| kJ | 214 | 167 | 133 | 130 | 248 | 228 | 90 | 44 | 97 | 841 | 905 | 1093 | 23 | 23 | 22 | 21 | 10 | 10 | 10 |
Swell 3 Height (m) Direction Period (s) | SSE 14 | SSE 14 | SSE 13 | SSE 13 | WSW 17 | WSW 17 | SSE 13 | SSE 13 | ESE 8 | SSE 11 | SSE 12 | SSE 11 | — | — | — | E 12 | E 13 | — | — |
| kJ | 63 | 105 | 137 | 133 | 170 | 172 | 68 | 35 | 12 | 74 | 52 | 40 | — | — | — | 3 | 3 | — | — |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | WSW 14 | SW 10 | — | — | — | — | — | — | — | — | SSE 4 | SSE 7 |
| kJ | — | — | — | — | — | — | — | 1809 | 768 | — | — | — | — | — | — | — | — | 21 | 114 |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 1 | 5 | 0 | 0 | 26 | 0 | 0 | 0 | 18 | 59 | 26 | 26 | 26 | 337 | 34 | 34 | 34 | 271 | 337 |
Best forecast wave conditions in Cape Town | |||||||||||||||||||
Best forecast wave conditions in South Africa | |||||||||||||||||||
Header Global | |||||||||||||||||||
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