Surf Forecasts:
How big are the waves at Extensions today (31 Aug):
- Morning surf: Morning surf (31 Aug, local time) - 7ft (2.1m), 12s period with SW swell.
- Afternoon surf: Afternoon surf (31 Aug, local time) - 6.5ft (2.0m), 11s period with SW swell.
- Evening surf: Evening surf (31 Aug, local time) - 6ft (1.9m), 11s period with SW swell.
The current surf forecast for Extensions at 1AM is: 2.2m 12s primary swell from a West-southwest direction (forecast issued at 07:00pm August 30). An open ocean swell of 0.2m 10s is not directed at the surf break, a second open ocean swell of 0.9m 7s is not directed at the surf break. The wind direction is predicted to be cross-offshore.
| Time (SAST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (31 Aug) | 7ft (2.1m) | 12s |
| Afternoon (31 Aug) | 6.5ft (2.0m) | 11s |
| Evening (31 Aug) | 6ft (1.9m) | 11s |
Table - waves today at Extensions. (Swell directed towards the surf break)
Short Range ForecastMostly dry. Very mild (max 15°C on Wed afternoon, min 12°C on Sun night). Winds decreasing (fresh winds from the SE on Sun night, calm by Tue morning). | |||||||||||||||||||
Sun 30 | Monday 31 | Tuesday 1 | |||||||||||||||||
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 12 | SW 12 | SW 12 | WSW 12 | SW 12 | SW 12 | WSW 11 | SW 11 | SW 11 | SW 12 | SW 11 | SW 11 | SW 13 | SW 13 | SW 13 | SW 13 | SW 13 | SW 13 | SW 14 |
Wave Graph  | |||||||||||||||||||
 kJ | 1849 | 1735 | 1521 | 1259 | 1323 | 1235 | 1045 | 911 | 1008 | 963 | 901 | 1562 | 2166 | 2561 | 2961 | 3415 | 3905 | 4228 | 4292 |
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 | cross-on | cross-on | glassy | cross-on | glassy | glassy | glassy | cross-on | cross-on | cross-on | cross |
High Tide | 4:31PM1.63m | 4:48AM1.47m | 5:03PM1.60m | 5:22AM1.41m | 5:38PM1.52m | ||||||||||||||
Low Tide | 10:45PM0.07m | 10:48AM0.10m | 11:18PM0.11m | 11:22AM0.17m | |||||||||||||||
 |  | | | | | | | | | | | | | | | | | | |
 | — | — | — | — | 7:05 | — | — | — | — | — | — | — | 7:05 | — | — | — | — | — | — |
 | 6:25 | — | — | — | — | — | — | — | 6:25 | — | — | — | — | — | — | — | 6:27 | — | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 13 | 13 | 13 | 12 | 12 | 12 | 12 | 12 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 14 | 14 | 14 | 14 |
Feels °C | 6 | 7 | 7 | 6 | 7 | 8 | 9 | 10 | 11 | 11 | 12 | 12 | 12 | 13 | 13 | 12 | 11 | 11 | 12 |
Swell 1 Height (m) Direction Period (s) | SW 12 | SW 12 | SW 12 | WSW 12 | SW 12 | SW 12 | WSW 11 | SW 11 | SW 11 | SW 12 | SW 11 | SW 11 | SW 13 | SW 13 | SW 13 | SW 13 | SW 13 | SW 13 | SW 14 |
| kJ | 1849 | 1735 | 1521 | 1259 | 1323 | 1235 | 1045 | 911 | 1008 | 963 | 901 | 1562 | 2166 | 2561 | 2961 | 3415 | 3905 | 4228 | 4292 |
Swell 2 Height (m) Direction Period (s) | SSE 10 | SSE 10 | SSE 10 | SSE 10 | S 10 | SE 11 | — | — | SE 10 | WSW 11 | SW 13 | — | — | — | — | — | — | — | — |
| kJ | 10 | 10 | 10 | 10 | 8 | 5 | — | — | 4 | 158 | 494 | — | — | — | — | — | — | — | — |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | SE 10 | SW 14 | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | 4 | 189 | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | — | — | — | SSE 7 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | 94 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 337 | 33 | 33 | 27 | 26 | 12 | 0 | 12 | 3 | 3 | 0 | 3 | 0 | 0 | 0 | 1 | 1 | 3 | 12 |
Best forecast wave conditions in Cape Town | |||||||||||||||||||
Best forecast wave conditions in South Africa | |||||||||||||||||||
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