Surf Forecasts:
How big are the waves at Extensions today (25 Aug):
- Morning surf: Morning surf (25 Aug, local time) - 8ft (2.5m), 14s period with SW swell.
- Afternoon surf: Afternoon surf (25 Aug, local time) - 8ft (2.4m), 14s period with SW swell.
- Evening surf: Evening surf (25 Aug, local time) - 6.5ft (2.0m), 13s period with WSW swell.
The current surf forecast for Extensions at 6PM is: 2.2m 14s primary swell from a Southwest direction and 0.8m 15s secondary swell from a South-southwest direction (forecast issued at 01:00pm August 25). An open ocean swell of 1.9m 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 (25 Aug) | 8ft (2.5m) | 14s |
| Afternoon (25 Aug) | 8ft (2.4m) | 14s |
| Evening (25 Aug) | 6.5ft (2.0m) | 13s |
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 Wed night). | |||||||||||||||||||||
Tue 25 | Wednesday 26 | Thursday 27 | |||||||||||||||||||
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 14 | SW 14 | WSW 14 | WSW 13 | WSW 13 | WSW 13 | WSW 13 | WSW 13 | WSW 13 | WSW 12 | WSW 12 | WSW 12 | SSW 12 | SSW 11 | SSW 11 | S 12 | S 12 | S 11 | S 11 | S 11 | S 11 |
Wave Graph  | |||||||||||||||||||||
 kJ | 2323 | 2506 | 1831 | 1567 | 1303 | 1002 | 824 | 722 | 587 | 551 | 466 | 419 | 397 | 446 | 603 | 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 | cross-off | cross-off | off | off | off | off | cross-off | off | off | off | glassy | cross | cross-on | cross-on | on | on | cross-on | cross |
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 | 13 | 15 | 16 | 15 | 13 | 13 | 12 | 13 | 14 | 19 | 21 | 21 | 20 | 19 | 19 | 19 | 19 | 19 | 16 | 16 | 15 |
Feels °C | 5 | 6 | 6 | 6 | 3 | 3 | 3 | 6 | 8 | 14 | 17 | 18 | 18 | 19 | 17 | 15 | 15 | 15 | 13 | 15 | 15 |
Swell 1 Height (m) Direction Period (s) | SW 14 | SW 14 | WSW 14 | WSW 13 | WSW 13 | WSW 13 | WSW 13 | WSW 13 | WSW 13 | WSW 12 | WSW 12 | SE 8 | SE 8 | SSW 11 | SSW 11 | S 12 | S 12 | S 11 | S 11 | S 11 | S 11 |
| kJ | 2323 | 2506 | 1831 | 1567 | 1303 | 1002 | 824 | 722 | 587 | 551 | 466 | 270 | 206 | 446 | 603 | 617 | 607 | 655 | 632 | 621 | 536 |
Swell 2 Height (m) Direction Period (s) | SSW 16 | SSW 15 | SW 15 | SSW 14 | SSW 14 | 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 | 226 | 279 | 217 | 330 | 384 | 169 | 233 | 193 | 225 | 221 | 268 | 419 | 397 | 322 | 328 | 311 | 256 | 247 | 225 | 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 17 | WSW 16 | WSW 16 | WSW 16 |
| kJ | — | — | — | 6 | 6 | 99 | 144 | 263 | 337 | 421 | 411 | 320 | 353 | 145 | 109 | 61 | 53 | 27 | 26 | 53 | 94 |
Wind waves Height (m) Direction Period (s) | SE 5 | SE 5 | 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 | 113 | 152 | 213 | 269 | 387 | 572 | 541 | 535 | 432 | 354 | 346 | 734 | 515 | — | — | — | 2 | 2 | 4 | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 41 | 41 | 41 | 42 | 42 | 37 | 37 | 26 | 18 | 12 | 18 | 0 | 0 | 0 | 1 | 1 | 1 | 3 | 5 | 1 | 5 |
Best forecast wave conditions in Cape Town | |||||||||||||||||||||
Best forecast wave conditions in South Africa | |||||||||||||||||||||
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