Surf Forecasts:
How big are the waves at Extensions today (25 Sep):
- Morning surf: Morning surf (25 Sep, local time) - 5.5ft (1.7m), 12s period with SW swell.
- Afternoon surf: Afternoon surf (25 Sep, local time) - 5ft (1.6m), 12s period with SW swell.
- Evening surf: Evening surf (25 Sep, local time) - 5ft (1.5m), 12s period with SW swell.
The current surf forecast for Extensions at 1PM is: 1.6m 12s primary swell from a Southwest direction (forecast issued at 07:00am September 25). An open ocean swell of 0.4m 7s is not directed at the surf break. The wind direction is predicted to be cross-onshore.
| Time (SAST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (25 Sep) | 5.5ft (1.7m) | 12s |
| Afternoon (25 Sep) | 5ft (1.6m) | 12s |
| Evening (25 Sep) | 5ft (1.5m) | 12s |
Table - waves today at Extensions. (Swell directed towards the surf break)
Short Range ForecastLight rain (total 2mm), mostly falling on Sat morning. Very mild (max 17°C on Fri afternoon, min 12°C on Sun night). Winds increasing (light winds from the WSW on Fri morning, near gales from the SE by Sun night). | |||||||||||||||||||||||
Friday 25 | Saturday 26 | Sunday 27 | |||||||||||||||||||||
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 | 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 12 | SW 12 | SW 12 | SW 12 | SW 12 | SW 12 | SW 12 | SW 16 | SW 16 | SW 15 | SW 15 | SW 15 | SW 14 | SW 14 | SW 14 | SW 14 | SW 14 | WSW 14 | SW 14 | SW 14 | SW 13 | WSW 13 | WSW 13 |
Wave Graph  | |||||||||||||||||||||||
 kJ | 1026 | 850 | 822 | 747 | 734 | 614 | 666 | 643 | 954 | 2237 | 2502 | 2278 | 2114 | 1977 | 1850 | 2420 | 1788 | 1258 | 1664 | 1884 | 1544 | 1030 | 875 |
Wind (km/h) | |||||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-on | cross-on | on | on | on | cross-on | 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 | 2:29PM1.57m | 2:46AM1.50m | 2:59PM1.65m | 3:18AM1.54m | 3:30PM1.69m | ||||||||||||||||||
Low Tide | 8:20AM0.14m | 8:44PM0.08m | 8:49AM0.08m | 9:14PM0.01m | 9:19AM0.05m | 9:46PM-0.02m | |||||||||||||||||
 |  |  | | |  | | | |  | | | | | |  | |  | | | | | | |
 | 6:31 | — | — | — | — | — | — | — | 6:30 | — | — | — | — | — | — | — | 6:28 | — | — | — | — | — | — |
 | — | — | — | — | 6:44 | — | — | — | — | — | — | — | 6:45 | — | — | — | — | — | — | — | 6:45 | — | — |
mm | — | — | — | — | — | — | — | — | — | 1 | 1 | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 15 | 15 | 15 | 17 | 17 | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 15 | 15 | 15 | 14 | 14 | 14 | 13 | 13 | 13 | 13 |
Feels °C | 13 | 14 | 15 | 17 | 14 | 15 | 15 | 15 | 14 | 15 | 14 | 14 | 12 | 10 | 11 | 11 | 7 | 7 | 6 | 5 | 4 | 3 | 3 |
Swell 1 Height (m) Direction Period (s) | SW 12 | SW 12 | SW 12 | SW 12 | SW 12 | SW 12 | SW 12 | SW 12 | SW 12 | SW 15 | SW 15 | SW 15 | SW 14 | SW 14 | SW 14 | SW 14 | SW 14 | WSW 14 | SW 14 | SW 14 | SW 13 | WSW 13 | WSW 13 |
| kJ | 1026 | 850 | 822 | 747 | 734 | 614 | 666 | 568 | 625 | 2237 | 2502 | 2278 | 2114 | 1977 | 1850 | 2420 | 1788 | 1258 | 1664 | 1884 | 1544 | 1030 | 875 |
Swell 2 Height (m) Direction Period (s) | SE 7 | SE 7 | SE 7 | SE 7 | SE 7 | SW 17 | SSE 9 | SW 16 | SW 16 | ESE 7 | SSE 9 | S 11 | S 11 | S 11 | ESE 8 | ESE 8 | — | — | — | — | — | — | SSW 8 |
| kJ | 35 | 22 | 16 | 17 | 12 | 106 | 27 | 643 | 954 | 5 | 25 | 2 | 2 | 2 | 6 | 6 | — | — | — | — | — | — | 137 |
Swell 3 Height (m) Direction Period (s) | W 16 | W 16 | W 16 | W 16 | SW 20 | SE 7 | SW 18 | SSE 9 | ESE 7 | — | SSE 9 | S 11 | S 11 | S 11 | — | — | — | — | — | — | — | — | — |
| kJ | 5 | 5 | 5 | 5 | 15 | 13 | 82 | 43 | 5 | — | 26 | 2 | 2 | 2 | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | S 6 | SSW 6 | S 6 | S 6 | SSE 6 | S 6 | SSE 6 | SE 5 | SSE 6 | SSE 6 | SE 6 |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | 101 | 170 | 161 | 119 | 69 | 293 | 192 | 119 | 216 | 350 | 320 |
Nearest Offshore or Glassy | |||||||||||||||||||||||
Distance (km) | 1 | 1 | 1 | 1 | 5 | 3 | 0 | 0 | 12 | 0 | 12 | 26 | 187 | 61 | 34 | 30 | 337 | 337 | 337 | 398 | 337 | 337 | 61 |
Best forecast wave conditions in Cape Town | |||||||||||||||||||||||
Best forecast wave conditions in South Africa | |||||||||||||||||||||||
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