Surf Forecasts:
How big are the waves at Extensions today (10 Aug):
- Morning surf: Morning surf (10 Aug, local time) - 10ft (3.0m), 11s period with SSW swell.
- Afternoon surf: Afternoon surf (10 Aug, local time) - 7ft (2.2m), 10s period with S swell.
- Evening surf: Evening surf (10 Aug, local time) - 5ft (1.6m), 14s period with SSW swell.
The current surf forecast for Extensions at 6AM is: 3.0m 11s primary swell from a South-southwest direction and 2.5m 11s secondary swell from a Southwest direction (forecast issued at 01:00am August 10). The wind direction is predicted to be cross-offshore.
| Time (SAST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (10 Aug) | 10ft (3.0m) | 11s |
| Afternoon (10 Aug) | 7ft (2.2m) | 10s |
| Evening (10 Aug) | 5ft (1.6m) | 14s |
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 Mon night). Winds decreasing (near gales from the ESE on Tue night, light winds from the E by Wed afternoon). | ||||||||||||||||||||||||
Monday 10 | Tuesday 11 | Wednesday 12 | ||||||||||||||||||||||
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 11 | SSW 11 | SSW 11 | SSW 11 | S 10 | S 10 | SSW 14 | SSW 14 | SSW 13 | SSW 13 | SSW 13 | SSW 12 | SSW 12 | SSW 12 | SW 23 | SW 22 | SW 21 | SW 20 | SW 19 | SW 18 | SW 18 | SW 17 | SW 17 | SW 16 |
Wave Graph  | ||||||||||||||||||||||||
 kJ | 1749 | 2034 | 1775 | 1699 | 922 | 669 | 975 | 2590 | 1960 | 1699 | 1301 | 904 | 644 | 455 | 1055 | 1542 | 2150 | 2207 | 2339 | 2344 | 2267 | 2375 | 2595 | 2311 |
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 | off | cross-off | off | off | off | off | off | off | off | off | off | off | off | off | off | off | off |
High Tide | 1:06AM1.35m | 1:46PM1.37m | 2:01AM1.45m | 2:32PM1.51m | 2:48AM1.53m | 3:14PM1.62m | ||||||||||||||||||
Low Tide | 7:33AM0.21m | 7:56PM0.25m | 8:20AM0.10m | 8:44PM0.13m | 9:02AM0.02m | 9:28PM0.05m | ||||||||||||||||||
 | |  | | | |  | | | | | | | | | | | | | | | | | | |
 | — | 7:31 | — | — | — | — | — | — | — | 7:30 | — | — | — | — | — | — | — | 7:28 | — | — | — | — | — | — |
 | — | — | — | — | — | 6:10 | — | — | — | — | — | — | — | 6:12 | — | — | — | — | — | — | — | 6:13 | — | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 12 | 12 | 12 | 12 | 12 | 14 | 15 | 13 | 12 | 12 | 13 | 14 | 16 | 18 | 21 | 21 | 21 |
Feels °C | 3 | 4 | 5 | 4 | 4 | 3 | 3 | 2 | 2 | 3 | 3 | 3 | 6 | 6 | 3 | 2 | 4 | 7 | 9 | 11 | 14 | 18 | 17 | 16 |
Swell 1 Height (m) Direction Period (s) | SW 11 | SW 11 | SW 11 | S 18 | SW 11 | S 10 | SSW 10 | SSW 14 | SSW 13 | SSW 13 | SSW 13 | SSW 12 | SSW 12 | SSW 12 | SSW 11 | SW 22 | SW 21 | SW 20 | SW 19 | SW 18 | SW 18 | SW 17 | SW 17 | SW 16 |
| kJ | 1749 | 1514 | 1411 | 6 | 524 | 669 | 769 | 2590 | 1960 | 1699 | 1301 | 904 | 644 | 421 | 329 | 1542 | 2150 | 2207 | 2339 | 2344 | 2267 | 2375 | 2595 | 2311 |
Swell 2 Height (m) Direction Period (s) | — | — | — | — | SSW 13 | SW 11 | SSW 14 | WSW 11 | WSW 11 | WSW 11 | W 16 | WSW 10 | WSW 10 | SW 24 | SW 23 | SSW 11 | SSW 11 | SW 11 | SW 11 | SW 10 | SW 10 | SW 10 | S 10 | SW 21 |
| kJ | — | — | — | — | 229 | 328 | 975 | 101 | 66 | 66 | 5 | 20 | 40 | 455 | 1055 | 251 | 211 | 172 | 134 | 108 | 85 | 64 | 8 | 880 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | SSW 14 | WSW 10 | — | — | — | W 27 | SW 26 | SW 25 | WSW 10 | WSW 10 | — | — | — | S 10 | SSW 10 | S 10 | S 10 | — | S 10 |
| kJ | — | — | — | — | — | 572 | 229 | — | — | — | 14 | 27 | 161 | 40 | 20 | — | — | — | 17 | 92 | 17 | 17 | — | 8 |
Wind waves Height (m) Direction Period (s) | SSE 8 | SSW 11 | SSW 11 | SSW 11 | S 10 | SE 6 | SE 6 | ESE 6 | SE 7 | SE 7 | SE 7 | SE 8 | SE 8 | SE 8 | SE 8 | SE 8 | SE 8 | SE 8 | SE 8 | SE 9 | SE 8 | SE 8 | SE 8 | SE 8 |
| kJ | 373 | 2034 | 1775 | 1699 | 922 | 156 | 228 | 202 | 321 | 284 | 325 | 432 | 432 | 545 | 672 | 746 | 639 | 470 | 313 | 262 | 181 | 149 | 206 | 235 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 224 | 224 | 61 | 41 | 187 | 187 | 41 | 41 | 37 | 37 | 37 | 26 | 18 | 25 | 30 | 37 | 25 | 18 | 0 | 0 | 0 | 0 | 0 | 0 |
Best forecast wave conditions in Cape Town | ||||||||||||||||||||||||
Best forecast wave conditions in South Africa | ||||||||||||||||||||||||
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