Surf Forecasts:
How big are the waves at Extensions today (03 Sep):
- Morning surf: Morning surf (03 Sep, local time) - 6ft (1.8m), 13s period with WSW swell.
- Afternoon surf: Afternoon surf (03 Sep, local time) - 4.5ft (1.3m), 12s period with WSW swell.
- Evening surf: Evening surf (03 Sep, local time) - 3.5ft (1.1m), 12s period with WSW swell.
The current surf forecast for Extensions at 6PM is: 1.2m 12s primary swell from a West-southwest direction and 0.4m 14s secondary swell from a West-northwest direction (forecast issued at 01:00pm September 03). An open ocean swell of 3.5m 9s is not directed at the surf break. The wind direction is predicted to be cross-offshore.
| Time (SAST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (03 Sep) | 6ft (1.8m) | 13s |
| Afternoon (03 Sep) | 4.5ft (1.3m) | 12s |
| Evening (03 Sep) | 3.5ft (1.1m) | 12s |
Table - waves today at Extensions. (Swell directed towards the surf break)
Short Range ForecastLight rain (total 4mm), mostly falling on Thu afternoon. Very mild (max 17°C on Sat afternoon, min 12°C on Fri night). Winds decreasing (gales from the SE on Fri afternoon, fresh winds from the ESE by Sun morning). | |||||||||||||||||||||
Thu 3 | Friday 4 | Saturday 5 | |||||||||||||||||||
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) | WSW 13 | WSW 12 | WSW 12 | WSW 12 | WSW 12 | WSW 12 | WSW 12 | WSW 12 | WSW 11 | WSW 11 | WSW 11 | WSW 11 | WSW 11 | WSW 11 | WSW 10 | SSW 11 | SSW 10 | SSW 10 | SSW 10 | SW 23 | SW 22 |
Wave Graph  | |||||||||||||||||||||
 kJ | 853 | 525 | 426 | 387 | 322 | 311 | 242 | 193 | 138 | 95 | 93 | 103 | 103 | 91 | 95 | 123 | 114 | 105 | 137 | 429 | 1339 |
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 | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off |
High Tide | 7:10PM1.28m | 7:54AM1.08m | 8:29PM1.15m | 9:45AM1.03m | 10:28PM1.12m | ||||||||||||||||
Low Tide | 12:45PM0.40m | 1:38AM0.42m | 1:54PM0.53m | 3:14AM0.51m | 3:56PM0.59m | ||||||||||||||||
 |  | |  | | | |  | | | | | | | | | | | | | | |
 | — | — | — | — | — | — | 7:01 | — | — | — | — | — | — | — | 7:00 | — | — | — | — | — | — |
 | — | — | 6:28 | — | — | — | — | — | — | — | 6:29 | — | — | — | — | — | — | — | 6:30 | — | — |
mm | 1 | 3 | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 14 | 13 | 15 | 15 | 14 | 14 | 13 | 13 | 14 | 14 | 13 | 13 | 13 | 13 | 12 | 12 | 14 | 17 | 17 | 14 | 14 |
Feels °C | 7 | 1 | 4 | 4 | 2 | 1 | 1 | 2 | 4 | 2 | 0 | 1 | 1 | 0 | 0 | 1 | 2 | 6 | 4 | 2 | 2 |
Swell 1 Height (m) Direction Period (s) | WSW 13 | WSW 12 | WSW 12 | WSW 12 | WSW 12 | WSW 12 | WSW 12 | WSW 12 | WSW 11 | WSW 11 | WSW 11 | WSW 11 | WSW 11 | WSW 11 | WSW 10 | SSW 11 | SSW 10 | SSW 10 | SSW 10 | SW 23 | SW 22 |
| kJ | 853 | 525 | 426 | 387 | 322 | 311 | 242 | 193 | 138 | 95 | 93 | 103 | 103 | 91 | 95 | 123 | 114 | 105 | 137 | 429 | 1339 |
Swell 2 Height (m) Direction Period (s) | — | W 16 | WNW 14 | W 12 | WNW 11 | — | — | — | — | S 14 | SSW 14 | SSW 13 | SSW 13 | SSW 13 | SSW 11 | WSW 10 | WSW 10 | WSW 10 | WSW 10 | SSW 10 | SSW 9 |
| kJ | — | 5 | 69 | 78 | 22 | — | — | — | — | 4 | 18 | 35 | 57 | 56 | 25 | 90 | 67 | 57 | 38 | 85 | 59 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | S 14 | — | SSW 13 | — | S 11 | S 13 | — | SSW 13 | SSW 13 | SW 24 | WSW 10 | SW 12 |
| kJ | — | — | — | — | — | — | — | — | — | 15 | — | 34 | — | 2 | 30 | — | 18 | 18 | 93 | 38 | 39 |
Wind waves Height (m) Direction Period (s) | S 9 | SSE 9 | SSE 9 | SSE 9 | SSE 9 | SSE 9 | SSE 9 | SSE 9 | SE 9 | SE 8 | SE 8 | SE 8 | SE 8 | SE 8 | SE 8 | SE 8 | SE 8 | SE 8 | SE 8 | SE 8 | SE 8 |
| kJ | 452 | 1951 | 1895 | 1895 | 1984 | 2243 | 2294 | 1850 | 1553 | 1384 | 1615 | 1583 | 1361 | 1328 | 1387 | 1330 | 1387 | 1271 | 1328 | 1608 | 1387 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 26 | 187 | 937 | 1003 | 1466 | 1334 | 1334 | 1334 | 1495 | 3883 | 281 | 55 | 51 | 48 | 48 | 42 | 37 | 37 | 48 | 55 | 48 |
Best forecast wave conditions in Cape Town | |||||||||||||||||||||
Best forecast wave conditions in South Africa | |||||||||||||||||||||
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