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 5AM is: 2.5m 14s primary swell from a Southwest direction and 0.6m 11s secondary swell from a West direction (forecast issued at 01:00am August 25). An open ocean swell of 1.2m 5s 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 morning). Winds decreasing (near gales from the SE on Tue afternoon, light winds from the NNE by Wed night). | ||||||||||||||||||||||||
Tuesday 25 | Wednesday 26 | Thursday 27 | ||||||||||||||||||||||
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 | 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 | SW 14 | SW 14 | SW 14 | WSW 14 | WSW 13 | WSW 13 | WSW 13 | WSW 13 | WSW 13 | WSW 13 | WSW 12 | WSW 12 | WSW 12 | WSW 12 | SSW 11 | SSW 11 | SSW 12 | SSW 12 | SSW 11 | S 11 | S 11 | S 11 |
Wave Graph  | ||||||||||||||||||||||||
 kJ | 2350 | 2458 | 2471 | 2323 | 2506 | 1831 | 1493 | 1303 | 1093 | 824 | 812 | 669 | 551 | 466 | 419 | 390 | 446 | 521 | 532 | 532 | 522 | 563 | 536 | 475 |
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 | cross-off | cross-off | cross-off | cross-off | off | off | off | off | off | off | off | cross-off | cross-on | cross-on | cross-on | on | on | on | cross |
High Tide | 1:41AM1.24m | 2:09PM1.31m | 2:14AM1.33m | 2:37PM1.42m | 2:44AM1.41m | 3:05PM1.52m | ||||||||||||||||||
Low Tide | 8:00AM0.31m | 8:17PM0.34m | 8:28AM0.21m | 8:47PM0.25m | 8:55AM0.14m | 9:15PM0.16m | ||||||||||||||||||
 | |  | | | | | | | | | | | | | | | | | | | |  | | |
 | — | 7:13 | — | — | — | — | — | — | — | 7:13 | — | — | — | — | — | — | — | 7:11 | — | — | — | — | — | — |
 | — | — | — | — | — | 6:22 | — | — | — | — | — | — | — | 6:22 | — | — | — | — | — | — | — | 6:22 | — | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 12 | 12 | 12 | 14 | 16 | 15 | 15 | 13 | 13 | 13 | 13 | 14 | 18 | 21 | 21 | 19 | 19 | 19 | 19 | 18 | 18 | 17 | 16 | 15 |
Feels °C | 5 | 5 | 4 | 6 | 7 | 5 | 6 | 3 | 4 | 4 | 5 | 7 | 13 | 17 | 18 | 16 | 18 | 16 | 15 | 13 | 13 | 14 | 14 | 15 |
Swell 1 Height (m) Direction Period (s) | SW 14 | SW 14 | SW 14 | 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 | SSW 12 | SSW 12 | SSW 11 | S 11 | S 11 | S 11 |
| kJ | 2350 | 2458 | 2471 | 2323 | 2506 | 1831 | 1493 | 1303 | 1093 | 824 | 812 | 669 | 551 | 466 | 270 | 177 | 446 | 521 | 532 | 532 | 522 | 563 | 536 | 475 |
Swell 2 Height (m) Direction Period (s) | W 11 | W 11 | SSW 16 | 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 11 | WSW 12 | WSW 12 | WSW 12 | WSW 12 | WSW 11 | WSW 11 | WSW 11 | WSW 11 |
| kJ | 154 | 86 | 105 | 226 | 279 | 217 | 330 | 352 | 169 | 233 | 193 | 225 | 221 | 217 | 419 | 390 | 347 | 328 | 260 | 256 | 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 | SE 8 | SE 8 | WSW 16 | WSW 15 |
| kJ | — | — | — | — | — | — | 6 | 6 | 99 | 144 | 196 | 263 | 337 | 411 | 314 | 353 | 138 | 112 | 66 | 49 | 41 | 23 | 53 | 93 |
Wind waves Height (m) Direction Period (s) | SE 4 | SE 5 | SE 5 | 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 | NNW 3 | NW 3 | NW 3 | WNW 3 | — |
| kJ | 45 | 60 | 82 | 124 | 166 | 235 | 319 | 411 | 572 | 625 | 604 | 496 | 413 | 346 | 683 | 502 | — | — | 2 | 5 | 5 | 2 | 2 | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 37 | 37 | 37 | 37 | 41 | 48 | 41 | 42 | 37 | 37 | 37 | 25 | 12 | 18 | 0 | 0 | 0 | 1 | 1 | 1 | 1 | 3 | 1 | 12 |
Best forecast wave conditions in Cape Town | ||||||||||||||||||||||||
Best forecast wave conditions in South Africa | ||||||||||||||||||||||||
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