Surf Forecasts:
How big are the waves at Extensions today (23 Aug):
- Morning surf: Morning surf (23 Aug, local time) - 8ft (2.4m), 13s period with WSW swell.
- Afternoon surf: Afternoon surf (23 Aug, local time) - 7.5ft (2.3m), 13s period with WSW swell.
- Evening surf: Evening surf (23 Aug, local time) - 7ft (2.2m), 12s period with WSW swell.
The current surf forecast for Extensions at 5PM is: 2.3m 12s primary swell from a West-southwest direction (forecast issued at 01:00pm August 23). The wind direction is predicted to be cross-offshore and the swell rating is 4.
| Time (SAST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (23 Aug) | 8ft (2.4m) | 13s |
| Afternoon (23 Aug) | 7.5ft (2.3m) | 13s |
| Evening (23 Aug) | 7ft (2.2m) | 12s |
Table - waves today at Extensions. (Swell directed towards the surf break)
Short Range ForecastMostly dry. Very mild (max 15°C on Tue afternoon, min 11°C on Tue morning). Winds increasing (light winds from the SSE on Sun afternoon, near gales from the ESE by Tue night). | |||||||||||||||||||||
Sun 23 | Monday 24 | Tuesday 25 | |||||||||||||||||||
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) | WSW 13 | WSW 13 | WSW 12 | WSW 12 | WSW 12 | WSW 12 | WSW 12 | WSW 12 | WSW 11 | WSW 11 | WSW 11 | SW 14 | SW 14 | SW 14 | SW 14 | SW 14 | SW 14 | SW 14 | WSW 14 | WSW 14 | WSW 13 |
Wave Graph  | |||||||||||||||||||||
 kJ | 1765 | 1711 | 1631 | 1435 | 1280 | 1177 | 1106 | 1100 | 829 | 521 | 422 | 821 | 1290 | 2350 | 2326 | 2594 | 2323 | 2506 | 1858 | 1590 | 1303 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | 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 | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off |
High Tide | 12:59PM1.06m | 1:02AM1.13m | 1:38PM1.18m | 1:41AM1.24m | 2:09PM1.31m | ||||||||||||||||
Low Tide | 7:07PM0.56m | 7:28AM0.41m | 7:45PM0.45m | 8:00AM0.31m | 8:17PM0.34m | ||||||||||||||||
 | | |  | | | | | | | | | | | | | | | | | | |
 | — | — | — | — | — | — | 7:15 | — | — | — | — | — | — | — | 7:13 | — | — | — | — | — | — |
 | — | — | 6:21 | — | — | — | — | — | — | — | 6:21 | — | — | — | — | — | — | — | 6:22 | — | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 13 | 13 | 13 | 13 | 13 | 12 | 12 | 12 | 12 | 13 | 13 | 13 | 12 | 12 | 12 | 11 | 12 | 15 | 15 | 15 | 14 |
Feels °C | 11 | 11 | 10 | 10 | 10 | 8 | 8 | 8 | 8 | 9 | 8 | 8 | 6 | 5 | 5 | 3 | 4 | 7 | 6 | 6 | 5 |
Swell 1 Height (m) Direction Period (s) | WSW 13 | WSW 13 | WSW 12 | WSW 12 | WSW 12 | WSW 12 | WSW 12 | WSW 12 | WSW 11 | WSW 11 | WSW 11 | SW 14 | SW 14 | SW 14 | SW 14 | SW 14 | SW 14 | SW 14 | WSW 14 | WSW 14 | WSW 13 |
| kJ | 1765 | 1711 | 1631 | 1435 | 1280 | 1177 | 1106 | 1100 | 829 | 521 | 422 | 821 | 1290 | 2350 | 2326 | 2594 | 2323 | 2506 | 1858 | 1590 | 1303 |
Swell 2 Height (m) Direction Period (s) | SSW 11 | — | — | SSW 11 | — | — | — | SSW 14 | SSW 14 | SSW 10 | SSW 10 | SW 10 | SW 10 | W 11 | W 11 | SSW 16 | SSW 16 | SW 15 | SSW 15 | SSW 15 | SSW 14 |
| kJ | 47 | — | — | 218 | — | — | — | 36 | 121 | 288 | 354 | 363 | 348 | 154 | 86 | 147 | 226 | 226 | 272 | 305 | 384 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | SSW 14 | SW 16 | WSW 11 | W 11 | — | — | — | — | — | — | W 18 | W 17 |
| kJ | — | — | — | — | — | — | — | — | — | 170 | 322 | 308 | 238 | — | — | — | — | — | — | 6 | 6 |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | SSE 3 | — | SE 4 | SE 4 | SSE 4 | SSE 4 | SE 4 | SE 5 | SE 5 | SE 5 | SE 5 | SE 5 | SE 6 | SE 6 | SE 6 |
| kJ | — | — | — | — | — | — | 6 | — | 14 | 15 | 16 | 20 | 42 | 53 | 63 | 102 | 129 | 154 | 195 | 259 | 351 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 0 | 0 | 0 | 0 | 12 | 12 | 12 | 12 | 12 | 12 | 85 | 48 | 37 | 37 | 37 | 37 | 37 | 454 | 400 | 41 | 48 |
Best forecast wave conditions in Cape Town | |||||||||||||||||||||
Best forecast wave conditions in South Africa | |||||||||||||||||||||
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