Surf Forecasts:
How big are the waves at Extensions today (16 Sep):
- Morning surf: Morning surf (16 Sep, local time) - 10ft (3.0m), 13s period with SW swell.
- Afternoon surf: Afternoon surf (16 Sep, local time) - 8ft (2.5m), 13s period with SW swell.
- Evening surf: Evening surf (16 Sep, local time) - 6.5ft (2.0m), 13s period with SW swell.
The current surf forecast for Extensions at 10AM is: 3.0m 13s primary swell from a Southwest direction and 1.5m 14s secondary swell from a Southwest direction (forecast issued at 07:00am September 16). The wind direction is predicted to be cross-offshore.
| Time (SAST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (16 Sep) | 10ft (3.0m) | 13s |
| Afternoon (16 Sep) | 8ft (2.5m) | 13s |
| Evening (16 Sep) | 6.5ft (2.0m) | 13s |
Table - waves today at Extensions. (Swell directed towards the surf break)
Short Range ForecastMostly dry. Very mild (max 16°C on Fri afternoon, min 13°C on Wed night). Mainly near gales. | |||||||||||||||||||||||
Wednesday 16 | Thursday 17 | Friday 18 | |||||||||||||||||||||
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) | WSW 14 | SW 13 | SW 13 | SW 13 | SSW 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 13 | SW 13 | SW 13 |
Wave Graph  | |||||||||||||||||||||||
 kJ | 3460 | 3170 | 2682 | 2241 | 2057 | 1155 | 1491 | 1569 | 1404 | 1381 | 1347 | 1180 | 1092 | 929 | 897 | 851 | 770 | 756 | 770 | 770 | 1037 | 946 | 932 |
Wind (km/h) | |||||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | 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 | cross-off |
High Tide | 5:59PM1.27m | 6:21AM1.13m | 6:34PM1.13m | 7:06AM1.01m | 7:26PM1.01m | ||||||||||||||||||
Low Tide | 11:47AM0.38m | 00:14AM0.41m | 12:18PM0.50m | 00:52AM0.53m | 1:00PM0.63m | ||||||||||||||||||
 |  | | | |  | | | | | | | | | | | | | | | | | | |
 | 6:45 | — | — | — | — | — | — | — | 6:43 | — | — | — | — | — | — | — | 6:41 | — | — | — | — | — | — |
 | — | — | — | — | 6:37 | — | — | — | — | — | — | — | 6:37 | — | — | — | — | — | — | — | 6:38 | — | — |
mm | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 14 | 14 | 14 | 14 | 14 | 14 | 13 | 13 | 13 | 13 | 14 | 14 | 14 | 14 | 14 | 13 | 13 | 13 | 14 | 16 | 16 | 14 | 14 |
Feels °C | 7 | 5 | 6 | 6 | 6 | 5 | 3 | 3 | 4 | 4 | 5 | 4 | 4 | 4 | 5 | 4 | 4 | 4 | 5 | 6 | 6 | 4 | 4 |
Swell 1 Height (m) Direction Period (s) | WSW 14 | SW 13 | SW 13 | SW 13 | W 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 13 | SW 13 | SW 13 |
| kJ | 3460 | 3170 | 2682 | 2241 | 987 | 1155 | 1491 | 1569 | 1404 | 1381 | 1347 | 1180 | 1092 | 929 | 897 | 851 | 770 | 756 | 770 | 770 | 1037 | 946 | 932 |
Swell 2 Height (m) Direction Period (s) | SW 15 | SW 14 | SW 14 | SW 14 | WSW 13 | W 13 | W 13 | W 12 | W 12 | W 12 | — | — | — | — | — | — | — | — | SW 15 | SW 20 | WSW 18 | SW 18 | WSW 18 |
| kJ | 360 | 780 | 825 | 790 | 187 | 764 | 475 | 365 | 243 | 180 | — | — | — | — | — | — | — | — | 106 | 15 | 31 | 49 | 31 |
Swell 3 Height (m) Direction Period (s) | ESE 12 | ESE 12 | WSW 14 | ESE 11 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | 28 | 13 | 378 | 13 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | — | — | — | — | SSW 13 | SSE 7 | SSE 7 | SE 7 | SE 7 | SE 7 | SE 6 | SE 6 | SE 6 | SE 6 | SE 6 | SE 6 | SE 6 | SE 6 | SE 6 | SE 6 | SE 7 | SE 7 | SE 7 |
| kJ | — | — | — | — | 2057 | 432 | 472 | 412 | 381 | 342 | 296 | 278 | 364 | 331 | 317 | 295 | 269 | 278 | 297 | 374 | 480 | 483 | 427 |
Nearest Offshore or Glassy | |||||||||||||||||||||||
Distance (km) | 30 | 12 | 34 | 271 | 337 | 360 | 224 | 250 | 41 | 41 | 41 | 37 | 400 | 226 | 1430 | 87 | 61 | 55 | 51 | 42 | 48 | 55 | 2005 |
Best forecast wave conditions in Cape Town | |||||||||||||||||||||||
Best forecast wave conditions in South Africa | |||||||||||||||||||||||
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