Surf Forecasts:
How big are the waves at Derde Steen today (13 Sep):
- Morning surf: Morning surf (13 Sep, local time) - 7ft (2.2m), 14s period with SW swell.
- Afternoon surf: Afternoon surf (13 Sep, local time) - 6ft (1.8m), 14s period with SW swell.
- Evening surf: Evening surf (13 Sep, local time) - 5ft (1.6m), 13s period with SW swell.
The current surf forecast for Derde Steen at 12AM is: 2.3m 15s primary swell from a Southwest direction and 1.1m 8s secondary swell from a South-southeast direction, 1.8m 8s secondary swell from a South-southeast direction (forecast issued at 07:00pm September 12). The wind direction is predicted to be cross-offshore.
| Time (SAST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (13 Sep) | 7ft (2.2m) | 14s |
| Afternoon (13 Sep) | 6ft (1.8m) | 14s |
| Evening (13 Sep) | 5ft (1.6m) | 13s |
Table - waves today at Derde Steen. (Swell directed towards the surf break)
Short Range ForecastLight rain (total 6mm), mostly falling on Sun night. Warm (max 21°C on Sun morning, min 14°C on Mon night). Winds increasing (light winds from the WSW on Sun afternoon, fresh winds from the NW by Tue afternoon). | |||||||||||||||||||
Sat 12 | Sunday 13 | Monday 14 | |||||||||||||||||
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 16 | SW 16 | SW 16 | SW 15 | SW 15 | SW 14 | SW 14 | SW 14 | SW 14 | SW 13 | SW 13 | SW 13 | SW 13 | SW 13 | SW 12 | SW 12 | SW 12 | SW 12 | SW 12 |
Wave Graph  | |||||||||||||||||||
 kJ | 3059 | 2875 | 2768 | 2208 | 2010 | 2119 | 1812 | 1280 | 1119 | 933 | 834 | 663 | 581 | 563 | 430 | 361 | 355 | 268 | 263 |
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 | off | cross-off | cross-on | on | cross-on | cross | cross-off | cross-off | cross | cross | cross | cross-on | cross-off | cross-off |
High Tide | 3:58PM1.68m | 4:17AM1.52m | 4:29PM1.62m | 4:48AM1.45m | 4:59PM1.52m | ||||||||||||||
Low Tide | 10:15PM0.01m | 10:19AM0.08m | 10:45PM0.07m | 10:49AM0.16m | |||||||||||||||
 |  | | | | | | |  |  | | | |  | | | |  | | |
 | — | — | — | — | 6:48 | — | — | — | — | — | — | — | 6:47 | — | — | — | — | — | — |
 | 6:35 | — | — | — | — | — | — | — | 6:36 | — | — | — | — | — | — | — | 6:36 | — | — |
mm | — | — | — | — | — | — | — | — | — | 1 | 1 | — | 2 | 2 | — | — | — | — | — |
Temp °C | 19 | 18 | 16 | 16 | 16 | 17 | 21 | 17 | 17 | 15 | 15 | 15 | 15 | 15 | 17 | 17 | 16 | 15 | 14 |
Feels °C | 15 | 16 | 13 | 14 | 14 | 16 | 21 | 16 | 17 | 15 | 14 | 14 | 13 | 12 | 13 | 12 | 11 | 10 | 10 |
Swell 1 Height (m) Direction Period (s) | SW 16 | SW 16 | SW 16 | SW 15 | SW 15 | SW 14 | SW 14 | SW 14 | SW 14 | SW 13 | SW 13 | SW 13 | SW 13 | SW 13 | SW 12 | SW 12 | SW 12 | SW 12 | SW 12 |
| kJ | 3059 | 2875 | 2768 | 2208 | 2010 | 2119 | 1812 | 1280 | 1119 | 933 | 834 | 663 | 581 | 563 | 430 | 361 | 355 | 268 | 263 |
Swell 2 Height (m) Direction Period (s) | — | — | SSE 7 | SSE 9 | SSE 8 | SE 8 | SSE 8 | S 7 | S 7 | S 7 | S 7 | S 7 | SSE 7 | S 12 | SE 9 | SSE 7 | SSE 8 | SE 8 | SE 8 |
| kJ | — | — | 143 | 193 | 112 | 125 | 110 | 54 | 50 | 35 | 34 | 24 | 15 | 3 | 19 | 5 | 6 | 2 | 2 |
Swell 3 Height (m) Direction Period (s) | — | — | S 9 | — | — | — | — | — | SSE 11 | SSE 8 | SSE 7 | — | S 12 | — | — | — | — | — | — |
| kJ | — | — | 78 | — | — | — | — | — | 12 | 40 | 21 | — | 3 | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | SSE 8 | SSE 8 | SSE 8 | SSE 8 | — | — | — | — | — | — | NNW 3 | NNW 4 | NNW 4 | NNW 4 | NW 5 | NW 5 | NW 6 | NW 6 | NW 7 |
| kJ | 273 | 218 | 425 | 302 | — | — | — | — | — | — | 9 | 11 | 16 | 32 | 43 | 96 | 151 | 172 | 195 |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 10 | 3 | 3 | 0 | 0 | 0 | 0 | 14 | 18 | 17 | 6 | 0 | 0 | 38 | 40 | 342 | 188 | 38 | 83 |
Best forecast wave conditions in Cape Town | |||||||||||||||||||
Best forecast wave conditions in South Africa | |||||||||||||||||||
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