Surf Forecasts:
How big are the waves at Extensions today (26 Aug):
- Morning surf: Morning surf (26 Aug, local time) - 4.5ft (1.4m), 13s period with WSW swell.
- Afternoon surf: Afternoon surf (26 Aug, local time) - 4.5ft (1.3m), 12s period with WSW swell.
- Evening surf: Evening surf (26 Aug, local time) - 4ft (1.2m), 12s period with WSW swell.
The current surf forecast for Extensions at 1AM is: 1.8m 13s primary swell from a West-southwest direction and 0.9m 12s secondary swell from a South-southwest direction (forecast issued at 07:00pm August 25). An open ocean swell of 2.4m 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 (26 Aug) | 4.5ft (1.4m) | 13s |
| Afternoon (26 Aug) | 4.5ft (1.3m) | 12s |
| Evening (26 Aug) | 4ft (1.2m) | 12s |
Table - waves today at Extensions. (Swell directed towards the surf break)
Short Range ForecastMostly dry. Warm (max 21°C on Wed afternoon, min 12°C on Tue night). Winds decreasing (near gales from the ESE on Tue night, calm by Fri morning). | |||||||||||||||||||
Tue 25 | Wednesday 26 | Thursday 27 | |||||||||||||||||
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 | WSW 13 | WSW 14 | WSW 13 | WSW 13 | WSW 13 | WSW 13 | WSW 13 | SSW 16 | WSW 12 | SSW 12 | SSW 11 | SSW 11 | S 12 | S 12 | S 11 | S 11 | S 11 | S 11 |
Wave Graph  | |||||||||||||||||||
 kJ | 1831 | 1493 | 1204 | 1002 | 824 | 722 | 587 | 560 | 433 | 419 | 397 | 446 | 521 | 617 | 607 | 655 | 632 | 621 | 536 |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-off | cross-off | off | off | off | off | cross-off | off | off | off | off | cross | cross-on | cross-on | on | on | cross-on | cross-on |
High Tide | 2:09PM1.31m | 2:14AM1.33m | 2:37PM1.42m | 2:44AM1.41m | 3:05PM1.52m | ||||||||||||||
Low Tide | 8:17PM0.34m | 8:28AM0.21m | 8:47PM0.25m | 8:55AM0.14m | 9:15PM0.16m | ||||||||||||||
 |  | | | | | | | | | | | |  | | | |  | | |
 | — | — | — | — | 7:13 | — | — | — | — | — | — | — | 7:11 | — | — | — | — | — | — |
 | 6:22 | — | — | — | — | — | — | — | 6:22 | — | — | — | — | — | — | — | 6:22 | — | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 16 | 15 | 13 | 13 | 12 | 13 | 14 | 19 | 21 | 21 | 21 | 21 | 21 | 20 | 19 | 19 | 17 | 15 | 15 |
Feels °C | 6 | 6 | 3 | 4 | 3 | 5 | 8 | 14 | 17 | 18 | 19 | 20 | 18 | 17 | 16 | 15 | 14 | 14 | 15 |
Swell 1 Height (m) Direction Period (s) | WSW 14 | WSW 13 | WSW 14 | WSW 13 | WSW 13 | WSW 13 | WSW 13 | WSW 13 | WSW 12 | SE 8 | SE 8 | SSW 11 | SSW 11 | S 12 | S 12 | S 11 | S 11 | S 11 | S 11 |
| kJ | 1831 | 1493 | 1204 | 1002 | 824 | 722 | 587 | 560 | 433 | 277 | 177 | 446 | 521 | 617 | 607 | 655 | 632 | 621 | 536 |
Swell 2 Height (m) Direction Period (s) | SW 15 | SSW 14 | SSW 13 | SSW 12 | SSW 12 | SSW 12 | SSW 11 | SSW 11 | SSW 11 | WSW 12 | SSW 12 | WSW 12 | WSW 12 | WSW 12 | WSW 12 | WSW 11 | WSW 11 | WSW 11 | WSW 11 |
| kJ | 217 | 330 | 368 | 169 | 233 | 193 | 225 | 221 | 314 | 419 | 397 | 322 | 328 | 260 | 306 | 247 | 183 | 180 | 173 |
Swell 3 Height (m) Direction Period (s) | — | W 18 | W 17 | SSW 16 | SSW 16 | SSW 16 | SSW 16 | SSW 16 | SSW 16 | SSW 11 | WSW 12 | SE 8 | SE 8 | SE 8 | SE 8 | WSW 11 | WSW 16 | WSW 16 | WSW 16 |
| kJ | — | 6 | 6 | 99 | 144 | 263 | 337 | 421 | 411 | 320 | 328 | 142 | 112 | 61 | 53 | 229 | 26 | 53 | 95 |
Wind waves Height (m) Direction Period (s) | SE 6 | SE 6 | SE 6 | SE 7 | SE 7 | SE 7 | SE 8 | SE 8 | SE 8 | ESE 8 | ESE 8 | — | — | — | NW 3 | NW 3 | WNW 3 | — | — |
| kJ | 195 | 269 | 411 | 540 | 572 | 550 | 432 | 364 | 316 | 683 | 476 | — | — | — | 2 | 2 | 2 | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 48 | 42 | 42 | 37 | 37 | 26 | 18 | 12 | 0 | 0 | 0 | 0 | 1 | 1 | 1 | 3 | 5 | 1 | 3 |
Best forecast wave conditions in Cape Town | |||||||||||||||||||
Best forecast wave conditions in South Africa | |||||||||||||||||||
Header Global | |||||||||||||||||||
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