Surf Forecasts:
How big are the waves at Extensions today (14 Sep):
- Morning surf: Morning surf (14 Sep, local time) - 4.5ft (1.3m), 12s period with SW swell.
- Afternoon surf: Afternoon surf (14 Sep, local time) - 3.5ft (1.1m), 12s period with SW swell.
- Evening surf: Evening surf (14 Sep, local time) - 7ft (2.1m), 7s period with NW swell.
The current surf forecast for Extensions at 8PM is: 2.1m 7s primary swell from a Northwest direction and 1.0m 12s secondary swell from a Southwest direction (forecast issued at 01:00pm September 14). An open ocean swell of 0.4m 12s is not directed at the surf break. The wind direction is predicted to be cross-shore.
| Time (SAST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (14 Sep) | 4.5ft (1.3m) | 12s |
| Afternoon (14 Sep) | 3.5ft (1.1m) | 12s |
| Evening (14 Sep) | 7ft (2.1m) | 7s |
Table - waves today at Extensions. (Swell directed towards the surf break)
Short Range ForecastHeavy rain (total 29mm), heaviest during Tue night. Very mild (max 16°C on Mon afternoon, min 12°C on Tue night). Mainly near gales. | |||||||||||||||||||||
Mon 14 | Tuesday 15 | Wednesday 16 | |||||||||||||||||||
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 | NW 7 | NW 7 | NW 7 | NW 7 | NW 8 | NW 7 | NW 6 | SW 16 | SW 16 | SW 15 | WSW 15 | WSW 14 | WSW 14 | SW 13 | SW 13 | SW 13 | WSW 13 | WSW 13 | SW 13 |
Wave Graph  | |||||||||||||||||||||
 kJ | 423 | 361 | 434 | 453 | 452 | 340 | 292 | 371 | 431 | 716 | 1194 | 1606 | 3348 | 4139 | 3716 | 3123 | 2601 | 2241 | 1594 | 1006 | 1749 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross-on | cross-on | cross | cross | cross-on | cross-on | cross-on | cross | cross-on | cross-on | cross | cross-on | cross | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off |
High Tide | 4:59PM1.53m | 5:18AM1.36m | 5:29PM1.41m | 5:48AM1.25m | 5:59PM1.27m | ||||||||||||||||
Low Tide | 10:49AM0.16m | 11:15PM0.17m | 11:18AM0.26m | 11:43PM0.28m | 11:47AM0.38m | ||||||||||||||||
 | |  |  |  | |  | |  | | |  |  |  | | | | | |  | | |
 | — | — | — | — | — | — | 6:46 | — | — | — | — | — | — | — | 6:45 | — | — | — | — | — | — |
 | — | — | 6:36 | — | — | — | — | — | — | — | 6:37 | — | — | — | — | — | — | — | 6:37 | — | — |
mm | — | — | — | — | — | — | 1 | — | — | — | — | 4 | 13 | 9 | 2 | — | — | — | — | — | — |
Temp °C | 16 | 16 | 16 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 13 | 13 | 12 | 14 | 14 | 14 | 14 | 14 | 14 | 14 |
Feels °C | 11 | 8 | 10 | 9 | 10 | 11 | 11 | 9 | 6 | 5 | 6 | 5 | 12 | 4 | 8 | 5 | 6 | 6 | 5 | 5 | 5 |
Swell 1 Height (m) Direction Period (s) | SW 12 | SW 12 | SW 12 | SW 12 | SW 12 | SW 11 | SW 11 | SW 11 | SW 11 | SW 16 | SW 16 | SW 15 | WSW 15 | WSW 14 | WSW 14 | SW 13 | SW 13 | SW 13 | WSW 13 | WSW 13 | SW 13 |
| kJ | 423 | 361 | 268 | 268 | 263 | 250 | 198 | 194 | 174 | 589 | 1194 | 1606 | 3348 | 4139 | 3716 | 3123 | 2601 | 2241 | 1594 | 995 | 1749 |
Swell 2 Height (m) Direction Period (s) | SE 11 | SE 11 | SE 12 | SE 12 | SE 13 | SE 13 | SW 15 | SW 16 | SW 18 | SW 12 | SE 13 | SE 13 | NW 8 | NW 8 | SW 15 | SW 14 | SW 14 | SW 13 | SW 13 | SW 13 | W 13 |
| kJ | 90 | 55 | 69 | 39 | 41 | 27 | 36 | 96 | 246 | 161 | 7 | 7 | 392 | 84 | 360 | 780 | 837 | 852 | 839 | 1006 | 475 |
Swell 3 Height (m) Direction Period (s) | — | ESE 13 | — | — | — | ESE 13 | ESE 13 | ESE 13 | ESE 13 | SE 13 | — | — | SE 13 | NNW 7 | NNW 7 | ESE 12 | WSW 14 | ESE 11 | E 11 | — | — |
| kJ | — | 16 | — | — | — | 17 | 17 | 17 | 17 | 7 | — | — | 7 | 41 | 30 | 14 | 378 | 13 | 10 | — | — |
Wind waves Height (m) Direction Period (s) | NNW 6 | NW 6 | NW 7 | NW 7 | NW 7 | NW 7 | NW 8 | NW 7 | NW 6 | NW 7 | NW 7 | NW 8 | — | — | — | — | — | — | SSE 5 | SSE 6 | SSE 6 |
| kJ | 129 | 275 | 434 | 453 | 452 | 340 | 292 | 371 | 431 | 716 | 903 | 875 | — | — | — | — | — | — | 44 | 199 | 288 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 50 | 155 | 50 | 50 | 50 | 35 | 20 | 155 | 220 | 167 | 167 | 220 | 1 | 187 | 41 | 337 | 337 | 224 | 224 | 41 | 37 |
Best forecast wave conditions in Cape Town | |||||||||||||||||||||
Best forecast wave conditions in South Africa | |||||||||||||||||||||
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