Surf Forecasts:
How big are the waves at Extensions today (19 Sep):
- Morning surf: Morning surf (19 Sep, local time) - 5ft (1.5m), 12s period with SW swell.
- Afternoon surf: Afternoon surf (19 Sep, local time) - 4.5ft (1.3m), 12s period with SW swell.
- Evening surf: Evening surf (19 Sep, local time) - 7ft (2.1m), 14s period with SW swell.
The current surf forecast for Extensions at 11AM is: 1.3m 12s primary swell from a Southwest direction and 0.9m 14s secondary swell from a Southwest direction (forecast issued at 07:00am September 19). An open ocean swell of 1.7m 6s is not directed at the surf break. The wind direction is predicted to be cross-offshore.
| Time (SAST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (19 Sep) | 5ft (1.5m) | 12s |
| Afternoon (19 Sep) | 4.5ft (1.3m) | 12s |
| Evening (19 Sep) | 7ft (2.1m) | 14s |
Table - waves today at Extensions. (Swell directed towards the surf break)
Short Range ForecastMostly dry. Warm (max 24°C on Mon night, min 13°C on Sat morning). Winds decreasing (near gales from the SE on Sat afternoon, light winds from the ENE by Mon night). | |||||||||||||||||||||||
Saturday 19 | Sunday 20 | Monday 21 | |||||||||||||||||||||
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 14 | SW 14 | SW 14 | SW 13 | SW 13 | SW 13 | WSW 13 | WSW 13 | WSW 13 | WSW 13 | WSW 12 | WSW 12 | WSW 12 | WSW 12 | WSW 12 | WSW 12 | SW 11 | SW 11 | SW 11 |
Wave Graph  | |||||||||||||||||||||||
 kJ | 785 | 772 | 448 | 466 | 1255 | 1754 | 1857 | 1810 | 1682 | 1502 | 1401 | 1198 | 1100 | 953 | 784 | 636 | 545 | 536 | 472 | 456 | 373 | 360 | 360 |
Wind (km/h) | |||||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | 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 | off |
High Tide | 8:42AM0.91m | 9:33PM0.93m | 11:22AM0.95m | 11:39PM0.99m | 12:27PM1.07m | ||||||||||||||||||
Low Tide | 2:48PM0.73m | 4:46AM0.66m | 5:46PM0.68m | 6:12AM0.56m | 6:42PM0.56m | ||||||||||||||||||
 |  | | | | | | | | | | | | | | | | | | | | | | |
 | 6:39 | — | — | — | — | — | — | — | 6:39 | — | — | — | — | — | — | — | 6:37 | — | — | — | — | — | — |
 | — | — | — | — | 6:39 | — | — | — | — | — | — | — | 6:39 | — | — | — | — | — | — | — | 6:40 | — | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 13 | 13 | 15 | 16 | 16 | 16 | 15 | 16 | 16 | 16 | 19 | 21 | 19 | 19 | 16 | 16 | 16 | 16 | 20 | 23 | 23 | 24 | 22 |
Feels °C | 6 | 7 | 9 | 8 | 7 | 8 | 8 | 10 | 11 | 11 | 15 | 16 | 14 | 13 | 9 | 11 | 11 | 12 | 16 | 20 | 20 | 22 | 21 |
Swell 1 Height (m) Direction Period (s) | SW 12 | SW 12 | SW 12 | SW 12 | SW 14 | SW 14 | SW 14 | SW 13 | SW 13 | SW 13 | WSW 13 | WSW 13 | WSW 13 | WSW 13 | WSW 12 | WSW 12 | WSW 12 | WSW 12 | WSW 12 | WSW 12 | SW 11 | SW 11 | SW 11 |
| kJ | 785 | 772 | 448 | 448 | 1255 | 1754 | 1857 | 1810 | 1682 | 1502 | 1401 | 1198 | 1100 | 953 | 784 | 636 | 545 | 536 | 472 | 456 | 373 | 360 | 360 |
Swell 2 Height (m) Direction Period (s) | SW 16 | — | SW 14 | SW 14 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | SW 15 | SW 15 | SSW 15 | SSW 15 | SE 6 |
| kJ | 127 | — | 346 | 466 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 58 | 58 | 87 | 142 | 64 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | SW 14 |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 211 |
Wind waves Height (m) Direction Period (s) | SE 7 | SE 6 | SE 6 | SE 6 | SE 6 | SE 7 | SE 6 | SE 6 | SE 6 | SE 6 | SE 6 | SE 6 | SE 6 | SE 6 | SE 6 | SE 6 | SE 6 | SE 6 | SE 6 | SE 6 | SE 6 | SE 6 | ESE 6 |
| kJ | 248 | 240 | 224 | 255 | 338 | 384 | 328 | 248 | 203 | 181 | 119 | 86 | 124 | 228 | 266 | 266 | 203 | 171 | 161 | 128 | 109 | 113 | 145 |
Nearest Offshore or Glassy | |||||||||||||||||||||||
Distance (km) | 26 | 25 | 25 | 30 | 224 | 37 | 37 | 26 | 25 | 25 | 12 | 27 | 27 | 37 | 37 | 26 | 25 | 25 | 12 | 12 | 12 | 12 | 0 |
Best forecast wave conditions in Cape Town | |||||||||||||||||||||||
Best forecast wave conditions in South Africa | |||||||||||||||||||||||
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