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 (1.9m), 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 6AM is: 2.3m 15s primary swell from a Southwest direction and 0.9m 7s secondary swell from a South-southeast direction (forecast issued at 01:00am September 13). The wind direction is predicted to be cross-offshore and the swell rating is 4.
| Time (SAST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (13 Sep) | 7ft (2.2m) | 14s |
| Afternoon (13 Sep) | 6ft (1.9m) | 14s |
| Evening (13 Sep) | 5ft (1.6m) | 13s |
Table - waves today at Derde Steen. (Swell directed towards the surf break)
Short Range ForecastHeavy rain (total 28mm), heaviest during Tue night. Warm (max 22°C on Sun morning, min 12°C on Tue night). Mainly fresh winds. | ||||||||||||||||||||||||
Sunday 13 | Monday 14 | Tuesday 15 | ||||||||||||||||||||||
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) | 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 | SW 12 | SW 11 | SW 11 | NW 7 | SW 17 | SW 16 | SW 16 | WSW 15 |
Wave Graph  | ||||||||||||||||||||||||
 kJ | 2208 | 2010 | 2119 | 1812 | 1493 | 1119 | 933 | 827 | 663 | 581 | 563 | 430 | 361 | 314 | 268 | 263 | 220 | 202 | 194 | 165 | 424 | 1001 | 2040 | 3214 |
Wind (km/h) | ||||||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-off | off | cross-off | cross-on | on | cross | cross | cross-off | cross-off | cross | cross | cross | cross | cross-off | cross-off | cross-off | cross-off | cross-off | cross | cross | cross | cross-off | cross-off |
High Tide | 4:17AM1.52m | 4:29PM1.62m | 4:48AM1.45m | 4:59PM1.52m | 5:18AM1.35m | 5:29PM1.40m | ||||||||||||||||||
Low Tide | 10:19AM0.08m | 10:45PM0.07m | 10:49AM0.16m | 11:15PM0.17m | 11:18AM0.26m | |||||||||||||||||||
 |  |  | | |  | | | |  | |  | | | | | | | | | | | | | |
 | — | 6:48 | — | — | — | — | — | — | — | 6:47 | — | — | — | — | — | — | — | 6:46 | — | — | — | — | — | — |
 | — | — | — | — | — | 6:36 | — | — | — | — | — | — | — | 6:36 | — | — | — | — | — | — | — | 6:37 | — | — |
mm | — | — | — | — | — | 1 | — | — | — | 1 | 1 | — | — | — | — | — | — | — | — | — | — | — | — | 4 |
Temp °C | 16 | 16 | 18 | 22 | 16 | 16 | 15 | 15 | 15 | 15 | 15 | 17 | 18 | 17 | 15 | 14 | 14 | 15 | 14 | 16 | 16 | 16 | 15 | 14 |
Feels °C | 14 | 14 | 18 | 22 | 14 | 16 | 15 | 14 | 14 | 13 | 12 | 12 | 12 | 13 | 10 | 10 | 10 | 11 | 9 | 12 | 10 | 11 | 11 | 9 |
Swell 1 Height (m) Direction Period (s) | 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 | SW 12 | SW 11 | SW 11 | SW 11 | SW 11 | SW 16 | SW 16 | WSW 15 |
| kJ | 2208 | 2010 | 2119 | 1812 | 1493 | 1119 | 933 | 827 | 663 | 581 | 563 | 430 | 361 | 314 | 268 | 263 | 220 | 202 | 194 | 165 | 180 | 1001 | 2040 | 3214 |
Swell 2 Height (m) Direction Period (s) | SSE 9 | SSE 7 | SSE 8 | SSE 8 | SSE 7 | S 7 | S 7 | S 7 | SSE 6 | S 11 | S 11 | SE 8 | SSE 7 | SSE 8 | SE 7 | SE 13 | S 13 | SW 17 | SW 16 | SW 18 | SW 17 | WSW 7 | — | — |
| kJ | 197 | 82 | 103 | 78 | 78 | 37 | 33 | 23 | 14 | 3 | 2 | 16 | 5 | 6 | 2 | 7 | 3 | 12 | 69 | 152 | 424 | 47 | — | — |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | S 11 | — | — | — | SSE 12 | — | — | — | — | SE 13 | — | — | S 13 | — | — | — | — | — | — |
| kJ | — | — | — | — | — | 2 | — | — | — | 13 | — | — | — | — | 7 | — | — | 3 | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | SSE 8 | — | — | — | — | — | — | NNW 3 | NNW 4 | NW 4 | NW 5 | NW 5 | NW 5 | NW 6 | NW 6 | NW 7 | NW 7 | NW 7 | NW 7 | NW 7 | NW 6 | NW 6 | NW 7 | — |
| kJ | 271 | — | — | — | — | — | — | 4 | 10 | 17 | 41 | 53 | 110 | 171 | 194 | 187 | 200 | 188 | 147 | 156 | 131 | 167 | 143 | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 1 | 1 | 0 | 0 | 32 | 16 | 6 | 6 | 0 | 7 | 38 | 38 | 342 | 195 | 83 | 40 | 83 | 91 | 91 | 195 | 234 | 234 | 177 | 32 |
Best forecast wave conditions in Cape Town | ||||||||||||||||||||||||
Best forecast wave conditions in South Africa | ||||||||||||||||||||||||
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