Surf Forecasts:
How big are the waves at Extensions today (21 Jun):
- Morning surf: Morning surf (21 Jun, local time) - 6ft (1.9m), 14s period with SW swell.
- Afternoon surf: Afternoon surf (21 Jun, local time) - 6.5ft (2.0m), 14s period with SW swell.
- Evening surf: Evening surf (21 Jun, local time) - 7ft (2.1m), 14s period with SW swell.
The current surf forecast for Extensions at 2PM is: 2.1m 14s primary swell from a Southwest direction and 0.4m 4s secondary swell from a North-northwest direction (forecast issued at 07:00am June 21). An open ocean swell of 0.3m 7s is not directed at the surf break. The wind direction is predicted to be glassy and the swell rating is 4.
| Time (SAST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (21 Jun) | 6ft (1.9m) | 14s |
| Afternoon (21 Jun) | 6.5ft (2.0m) | 14s |
| Evening (21 Jun) | 7ft (2.1m) | 14s |
Table - waves today at Extensions. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastModerate rain (total 12mm), heaviest on Tue night. Warm (max 21°C on Sun morning, min 12°C on Tue night). Winds increasing (calm on Sun morning, strong winds from the NNW by Tue afternoon). | ||||||||||||||||||||||||
Sunday 21 | Monday 22 | Tuesday 23 | Wed 24 | |||||||||||||||||||||
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 | 2 AM | |
Swell Height Map |  |  |  |  |  |  |  |  |  |  | ||||||||||||||
Wave Height (m) Direction Period (s) | SW 14 | SW 14 | SW 14 | SW 14 | SW 14 | SW 14 | SW 13 | WSW 13 | WSW 12 | SW 13 | SW 13 | SW 13 | SW 12 | SW 12 | SW 12 | SW 12 | SW 12 | SW 12 | SW 12 | SW 13 | WSW 13 | WSW 11 | SW 18 | SW 17 |
Wave Graph  | ||||||||||||||||||||||||
 kJ | 1289 | 1273 | 1494 | 1610 | 1570 | 1547 | 1524 | 1422 | 843 | 1249 | 905 | 1067 | 1060 | 1026 | 1059 | 1112 | 880 | 551 | 448 | 778 | 2221 | 1985 | 9180 | 10175 |
Wind (km/h) | ||||||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | glassy | glassy | glassy | cross-off | cross-off | off | cross-off | cross-on | on | cross-on | cross-on | cross-on | cross-on | cross | cross | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-off |
High Tide | 8:12AM1.13m | 8:44PM1.30m | 9:19AM1.06m | 9:45PM1.24m | 10:31AM1.04m | 10:48PM1.21m | ||||||||||||||||||
Low Tide | 2:14PM0.41m | 3:20AM0.44m | 3:16PM0.49m | 4:28AM0.46m | 4:26PM0.54m | |||||||||||||||||||
 |  | | | |  |  | | |  | | |  | | |  | | | | |  |  | | | |
 | 7:52 | — | — | — | — | — | — | — | 7:52 | — | — | — | — | — | — | — | 7:52 | — | — | — | — | — | — | 7:52 |
 | — | — | — | — | 5:43 | — | — | — | — | — | — | — | 5:43 | — | — | — | — | — | — | — | 5:44 | — | — | 5:44 |
mm | — | — | — | — | — | 1 | — | — | — | — | — | — | — | — | — | — | 1 | — | — | — | 2 | 5 | 2 | 1 |
Temp °C | 22 | 21 | 20 | 18 | 19 | 19 | 20 | 20 | 20 | 19 | 17 | 17 | 16 | 16 | 15 | 14 | 15 | 15 | 15 | 15 | 15 | 13 | 12 | 13 |
Feels °C | 19 | 20 | 20 | 17 | 18 | 17 | 18 | 18 | 19 | 18 | 15 | 14 | 12 | 12 | 11 | 9 | 10 | 9 | 7 | 7 | 10 | 7 | 9 | 11 |
Swell 1 Height (m) Direction Period (s) | SW 14 | SW 14 | SW 14 | SW 14 | SW 14 | SW 14 | SW 13 | WSW 13 | WSW 12 | SW 13 | SW 13 | SW 13 | SW 12 | SW 12 | SW 12 | SW 12 | SW 12 | SW 12 | SW 12 | SW 13 | WSW 13 | WSW 11 | SW 18 | SW 17 |
| kJ | 1289 | 1273 | 1494 | 1610 | 1570 | 1547 | 1524 | 1422 | 843 | 1249 | 905 | 1067 | 1060 | 1026 | 1059 | 1112 | 880 | 551 | 448 | 778 | 2221 | 1759 | 9180 | 10175 |
Swell 2 Height (m) Direction Period (s) | SSE 8 | S 8 | SSE 8 | ESE 7 | NNW 4 | SSE 8 | SSE 8 | SSE 8 | SW 14 | SE 8 | W 12 | W 12 | W 12 | S 15 | — | SSW 15 | SSW 16 | SW 15 | SW 14 | SW 22 | SW 21 | SW 19 | SW 18 | — |
| kJ | 26 | 33 | 21 | 11 | 6 | 11 | 6 | 6 | 520 | 3 | 284 | 108 | 104 | 18 | — | 291 | 226 | 318 | 341 | 75 | 635 | 1985 | 2397 | — |
Swell 3 Height (m) Direction Period (s) | — | — | ESE 7 | — | — | SE 8 | — | — | SE 8 | ESE 8 | ESE 8 | ESE 8 | — | — | — | — | — | — | W 24 | W 11 | SW 21 | SW 14 | — | — |
| kJ | — | — | 9 | — | — | 14 | — | — | 3 | 7 | 6 | 6 | — | — | — | — | — | — | 11 | 9 | 735 | 350 | — | — |
Wind waves Height (m) Direction Period (s) | — | — | — | NNW 4 | — | — | SE 8 | E 4 | — | — | — | NNW 3 | NNW 4 | NNW 4 | NNW 5 | NW 5 | NW 5 | WNW 6 | WNW 7 | WNW 7 | NNW 6 | — | — | — |
| kJ | — | — | — | 6 | — | — | 15 | 6 | — | — | — | 6 | 18 | 31 | 52 | 65 | 91 | 222 | 328 | 389 | 93 | — | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 1 | 1 | 1 | 1 | 35 | 35 | 24 | 25 | 167 | 264 | 167 | 30 | 12 | 0 |
Best forecast wave conditions in Cape Town | ||||||||||||||||||||||||
Best forecast wave conditions in South Africa | ||||||||||||||||||||||||
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