Surf Forecasts:
How big are the waves at Extensions today (18 Oct):
- Morning surf: Morning surf (18 Oct, local time) - 8ft (2.5m), 13s period with WSW swell.
- Afternoon surf: Afternoon surf (18 Oct, local time) - 10ft (3.0m), 13s period with SW swell.
- Evening surf: Evening surf (18 Oct, local time) - 8ft (2.5m), 13s period with SW swell.
The current surf forecast for Extensions at 6PM is: 3.0m 13s primary swell from a Southwest direction (forecast issued at 01:00pm October 18). The wind direction is predicted to be cross-shore.
| Time (SAST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (18 Oct) | 8ft (2.5m) | 13s |
| Afternoon (18 Oct) | 10ft (3.0m) | 13s |
| Evening (18 Oct) | 8ft (2.5m) | 13s |
Table - waves today at Extensions. (Swell directed towards the surf break)
Short Range ForecastLight rain (total 7mm), mostly falling on Wed morning. Very mild (max 15°C on Tue morning, min 13°C on Mon night). Winds increasing (calm on Mon night, strong winds from the NNW by Tue night). | |||||||||||||||||||||
Sun 18 | Monday 19 | Tuesday 20 | |||||||||||||||||||
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 13 | SW 13 | SW 13 | SW 12 | SW 12 | SW 12 | SW 12 | SW 12 | SW 12 | SW 12 | SW 11 | SW 11 | SW 11 | SW 11 | SW 11 | SW 11 | SW 11 | SW 11 | SW 12 | WSW 12 |
Wave Graph  | |||||||||||||||||||||
 kJ | 2660 | 2570 | 2445 | 2283 | 2032 | 1891 | 1632 | 1513 | 1313 | 1208 | 1111 | 964 | 817 | 756 | 683 | 696 | 688 | 787 | 964 | 1448 | 2150 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross | cross | cross | cross | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | glassy | glassy | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross |
High Tide | 8:30PM0.94m | 10:06AM0.99m | 10:36PM0.96m | 11:25AM1.09m | |||||||||||||||||
Low Tide | 2:12PM0.70m | 3:10AM0.64m | 4:42PM0.67m | 4:58AM0.59m | 5:52PM0.56m | ||||||||||||||||
 | |  |  | | | |  | | | | |  | |  | | | | | | | |
 | — | — | — | — | — | — | 6:00 | — | — | — | — | — | — | — | 5:58 | — | — | — | — | — | — |
 | — | — | 7:01 | — | — | — | — | — | — | — | 7:01 | — | — | — | — | — | — | — | 7:02 | — | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 13 | 13 | 15 | 14 | 15 | 15 | 14 |
Feels °C | 8 | 9 | 8 | 9 | 10 | 10 | 11 | 11 | 11 | 12 | 11 | 11 | 13 | 14 | 11 | 9 | 10 | 7 | 8 | 7 | 6 |
Swell 1 Height (m) Direction Period (s) | SW 13 | SW 13 | SW 13 | SW 13 | SW 12 | SW 12 | SW 12 | SW 12 | SW 12 | SW 12 | SW 12 | SW 11 | SW 11 | SW 11 | SW 11 | SW 11 | SW 11 | SW 11 | SW 11 | SW 12 | WSW 12 |
| kJ | 2660 | 2570 | 2445 | 2283 | 2032 | 1891 | 1632 | 1513 | 1313 | 1208 | 1111 | 964 | 817 | 756 | 683 | 696 | 688 | 787 | 964 | 1448 | 2150 |
Swell 2 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | E 8 | E 8 | E 8 | E 8 | E 8 | E 7 | E 7 | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | 1 | 4 | 5 | 5 | 5 | 1 | 1 | — | — | — |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | NW 2 | NW 4 | NW 4 | NW 5 | NNW 5 |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 2 | 10 | 41 | 66 | 59 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 34 | 26 | 26 | 26 | 26 | 26 | 3 | 3 | 3 | 3 | 1 | 1 | 0 | 0 | 1 | 1 | 1 | 24 | 25 | 35 | 318 |
Best forecast wave conditions in Cape Town | |||||||||||||||||||||
Best forecast wave conditions in South Africa | |||||||||||||||||||||
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