Surf Forecasts:
How big are the waves at Extensions today (05 Sep):
- Morning surf: Morning surf (05 Sep, local time) - 2.5ft (0.8m), 11s period with SSW swell.
- Afternoon surf: Afternoon surf (05 Sep, local time) - 3ft (0.9m), 10s period with SSW swell.
- Evening surf: Evening surf (05 Sep, local time) - 3.5ft (1.0m), 23s period with SW swell.
The current surf forecast for Extensions at 6AM is: 0.7m 10s primary swell from a West-southwest direction and 0.3m 11s secondary swell from a South-southwest direction (forecast issued at 01:00am September 05). An open ocean swell of 3.0m 8s is not directed at the surf break. The wind direction is predicted to be cross-offshore.
| Time (SAST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (05 Sep) | 2.5ft (0.8m) | 11s |
| Afternoon (05 Sep) | 3ft (0.9m) | 10s |
| Evening (05 Sep) | 3.5ft (1.0m) | 23s |
Table - waves today at Extensions. (Swell directed towards the surf break)
Short Range ForecastMostly dry. Warm (max 23°C on Mon morning, min 12°C on Sat morning). Winds decreasing (gales from the ESE on Sat night, calm by Mon night). | ||||||||||||||||||||||||
Saturday 5 | Sunday 6 | Monday 7 | ||||||||||||||||||||||
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) | WSW 11 | WSW 10 | SSW 11 | SSW 10 | SSW 10 | SW 25 | SW 23 | SW 22 | SW 20 | SW 19 | SW 18 | SW 18 | SW 16 | SW 16 | SW 16 | SW 15 | SW 15 | SW 14 | SW 14 | SW 14 | SW 13 | SW 13 | WSW 13 | WSW 13 |
Wave Graph  | ||||||||||||||||||||||||
 kJ | 101 | 94 | 135 | 121 | 137 | 221 | 773 | 1847 | 3008 | 3778 | 3672 | 3681 | 2506 | 2269 | 1904 | 1692 | 1647 | 1624 | 1558 | 1549 | 1266 | 1247 | 745 | 596 |
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 | off | off | off | off | off | cross-off | off | off | off | off | cross | cross-on | on | cross-on | cross-off | off |
High Tide | 9:45AM1.03m | 10:28PM1.12m | 11:38AM1.11m | 00:04AM1.20m | 12:47PM1.27m | |||||||||||||||||||
Low Tide | 3:14AM0.51m | 3:56PM0.59m | 5:14AM0.48m | 5:54PM0.50m | 6:32AM0.36m | 7:02PM0.35m | ||||||||||||||||||
 | |  | | | | | | | | | | | | | | | | | | | | | | |
 | — | 7:00 | — | — | — | — | — | — | — | 6:58 | — | — | — | — | — | — | — | 6:56 | — | — | — | — | — | — |
 | — | — | — | — | — | 6:30 | — | — | — | — | — | — | — | 6:30 | — | — | — | — | — | — | — | 6:30 | — | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 13 | 13 | 12 | 14 | 17 | 17 | 14 | 14 | 15 | 14 | 15 | 16 | 20 | 22 | 20 | 18 | 18 | 20 | 21 | 23 | 23 | 23 | 19 | 23 |
Feels °C | 1 | 1 | 0 | 2 | 7 | 5 | 2 | 2 | 4 | 4 | 7 | 10 | 15 | 16 | 15 | 14 | 15 | 19 | 20 | 22 | 20 | 20 | 19 | 21 |
Swell 1 Height (m) Direction Period (s) | WSW 11 | WSW 10 | SSW 11 | SSW 10 | SSW 10 | SSW 10 | SW 23 | SW 22 | SW 20 | SW 19 | SW 18 | SW 18 | SW 16 | SW 16 | SW 16 | SW 15 | SW 15 | SW 14 | SW 14 | SW 14 | SW 13 | SW 13 | WSW 13 | WSW 13 |
| kJ | 101 | 94 | 135 | 121 | 137 | 122 | 773 | 1847 | 3008 | 3778 | 3672 | 3681 | 2506 | 2269 | 1904 | 1692 | 1647 | 1624 | 1558 | 1549 | 1266 | 1247 | 745 | 596 |
Swell 2 Height (m) Direction Period (s) | SSW 13 | SSW 11 | WSW 10 | WSW 10 | WSW 10 | WSW 10 | SSW 10 | SSW 10 | SSW 9 | SW 9 | SW 9 | — | S 12 | S 12 | S 12 | — | SE 8 | SE 7 | SE 7 | SE 7 | SE 9 | SE 9 | SSW 12 | SSW 12 |
| kJ | 56 | 25 | 90 | 67 | 56 | 38 | 83 | 60 | 76 | 71 | 70 | — | 3 | 3 | 3 | — | 200 | 115 | 69 | 64 | 78 | 52 | 373 | 432 |
Swell 3 Height (m) Direction Period (s) | SSW 11 | S 13 | — | — | SSW 13 | SW 25 | WSW 10 | WSW 9 | SW 12 | SW 13 | — | — | — | — | — | — | — | S 12 | SSE 15 | SSE 14 | SSE 13 | SSE 13 | SE 8 | SE 9 |
| kJ | 12 | 30 | — | — | 18 | 221 | 38 | 35 | 39 | 82 | — | — | — | — | — | — | — | 11 | 21 | 18 | 18 | 17 | 37 | 39 |
Wind waves Height (m) Direction Period (s) | SE 8 | SE 8 | SE 8 | SE 8 | SE 8 | SE 8 | SE 8 | SE 8 | SE 8 | SE 8 | SE 8 | SE 8 | SE 8 | SE 8 | SE 8 | SE 8 | ESE 8 | — | — | — | — | — | — | — |
| kJ | 1185 | 1208 | 1208 | 1240 | 952 | 1245 | 1446 | 1178 | 1001 | 885 | 750 | 492 | 480 | 551 | 528 | 308 | 581 | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 48 | 48 | 42 | 48 | 30 | 48 | 48 | 48 | 37 | 37 | 37 | 18 | 12 | 25 | 18 | 18 | 0 | 0 | 1 | 1 | 1 | 3 | 0 | 0 |
Best forecast wave conditions in Cape Town | ||||||||||||||||||||||||
Best forecast wave conditions in South Africa | ||||||||||||||||||||||||
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