Surf Forecasts:
How big are the waves at Derde Steen today (19 Sep):
- Morning surf: Morning surf (19 Sep, local time) - 5ft (1.5m), 12s period with SW swell.
- Afternoon surf: Afternoon surf (19 Sep, local time) - 4.5ft (1.3m), 12s period with SW swell.
- Evening surf: Evening surf (19 Sep, local time) - 6ft (1.8m), 14s period with SW swell.
The current surf forecast for Derde Steen at 5PM is: 1.6m 14s primary swell from a Southwest direction and 1.1m 6s secondary swell from a South-southeast direction (forecast issued at 01:00pm September 19). The wind direction is predicted to be cross-shore.
| Time (SAST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (19 Sep) | 5ft (1.5m) | 12s |
| Afternoon (19 Sep) | 4.5ft (1.3m) | 12s |
| Evening (19 Sep) | 6ft (1.8m) | 14s |
Table - waves today at Derde Steen. (Swell directed towards the surf break)
Short Range ForecastMostly dry. Warm (max 30°C on Tue morning, min 17°C on Sat night). Wind will be generally light. | |||||||||||||||||||||
Sat 19 | Sunday 20 | Monday 21 | |||||||||||||||||||
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 12 | SW 12 | SW 14 | SW 14 | SW 14 | SW 13 | SW 13 | SW 13 | SW 13 | SW 13 | WSW 13 | WSW 13 | WSW 12 | WSW 12 | WSW 12 | WSW 12 | WSW 12 | SW 12 | WSW 11 | WSW 11 | SW 11 |
Wave Graph  | |||||||||||||||||||||
 kJ | 514 | 448 | 978 | 1238 | 1429 | 1591 | 1452 | 1367 | 1288 | 1094 | 998 | 822 | 702 | 636 | 554 | 480 | 472 | 407 | 347 | 335 | 314 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross | cross | cross-off | cross-off | cross-off | cross-off | cross-off | cross | cross-on | cross | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-on | cross-on | cross-off | cross-off |
High Tide | 8:48AM0.92m | 9:37PM0.93m | 11:20AM0.96m | 11:39PM0.99m | 12:26PM1.08m | ||||||||||||||||
Low Tide | 2:56PM0.73m | 4:47AM0.65m | 5:47PM0.67m | 6:11AM0.55m | 6:42PM0.56m | ||||||||||||||||
 | | |  | | | | | | | | | | | | | | | | | | |
 | — | — | — | — | — | — | 6:39 | — | — | — | — | — | — | — | 6:37 | — | — | — | — | — | — |
 | — | — | 6:39 | — | — | — | — | — | — | — | 6:39 | — | — | — | — | — | — | — | 6:40 | — | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 20 | 22 | 21 | 20 | 19 | 18 | 17 | 18 | 24 | 26 | 26 | 23 | 21 | 20 | 19 | 20 | 25 | 28 | 27 | 26 | 24 |
Feels °C | 18 | 20 | 18 | 18 | 17 | 16 | 15 | 16 | 23 | 24 | 24 | 22 | 20 | 19 | 18 | 19 | 25 | 27 | 25 | 26 | 24 |
Swell 1 Height (m) Direction Period (s) | SW 12 | SW 12 | SW 14 | SW 14 | SW 14 | SW 13 | SW 13 | SW 13 | SW 13 | SW 13 | WSW 13 | WSW 13 | WSW 12 | WSW 12 | WSW 12 | WSW 12 | WSW 12 | SW 12 | WSW 11 | WSW 11 | SW 11 |
| kJ | 514 | 448 | 978 | 1238 | 1429 | 1591 | 1452 | 1367 | 1288 | 1094 | 998 | 822 | 702 | 636 | 554 | 480 | 472 | 407 | 347 | 335 | 314 |
Swell 2 Height (m) Direction Period (s) | SW 15 | SW 14 | — | — | — | — | S 6 | S 6 | S 6 | — | — | — | — | SSE 6 | S 6 | S 5 | S 5 | S 6 | S 6 | S 6 | SW 14 |
| kJ | 255 | 305 | — | — | — | — | 47 | 49 | 36 | — | — | — | — | 58 | 44 | 29 | 20 | 20 | 19 | 19 | 167 |
Swell 3 Height (m) Direction Period (s) | S 7 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | SW 15 | SW 15 | SW 15 | SSE 7 |
| kJ | 35 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 35 | 57 | 106 | 15 |
Wind waves Height (m) Direction Period (s) | SSE 6 | S 6 | SSE 6 | SSE 6 | SSE 6 | S 6 | SSE 6 | SSE 6 | SSE 6 | S 6 | SSE 6 | S 6 | S 6 | SSE 6 | SSE 6 | — | — | — | — | — | — |
| kJ | 60 | 31 | 86 | 112 | 95 | 73 | 85 | 88 | 64 | 31 | 58 | 71 | 71 | 115 | 91 | — | — | — | — | — | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 1 | 1 | 160 | 0 | 0 | 0 | 0 | 0 | 1 | 3 | 3 | 0 | 0 | 0 | 0 | 0 | 0 | 3 | 3 | 0 | 0 |
Best forecast wave conditions in Cape Town | |||||||||||||||||||||
Best forecast wave conditions in South Africa | |||||||||||||||||||||
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