Surf Forecasts:
How big are the waves at Derde Steen today (16 Sep):
- Morning surf: Morning surf (16 Sep, local time) - 10ft (3.0m), 13s period with SW swell.
- Afternoon surf: Afternoon surf (16 Sep, local time) - 8ft (2.5m), 13s period with SW swell.
- Evening surf: Evening surf (16 Sep, local time) - 5ft (1.6m), 13s period with SW swell.
The current surf forecast for Derde Steen at 7PM is: 1.6m 13s primary swell from a Southwest direction and 1.4m 13s secondary swell from a West-southwest direction, 2.1m 7s secondary swell from a South direction (forecast issued at 01:00pm September 16). The wind direction is predicted to be cross-offshore.
| Time (SAST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (16 Sep) | 10ft (3.0m) | 13s |
| Afternoon (16 Sep) | 8ft (2.5m) | 13s |
| Evening (16 Sep) | 5ft (1.6m) | 13s |
Table - waves today at Derde Steen. (Swell directed towards the surf break)
Short Range ForecastMostly dry. Warm (max 20°C on Fri afternoon, min 11°C on Fri morning). Winds decreasing (strong winds from the SSE on Thu afternoon, light winds from the ESE by Fri morning). | |||||||||||||||||||||
Wed 16 | Thursday 17 | Friday 18 | |||||||||||||||||||
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 13 | SW 13 | WSW 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 11 | SW 13 | SW 13 | SW 13 |
Wave Graph  | |||||||||||||||||||||
 kJ | 2561 | 2456 | 1193 | 827 | 1127 | 1352 | 1429 | 1131 | 1031 | 1025 | 945 | 794 | 710 | 685 | 600 | 640 | 640 | 652 | 946 | 796 | 864 |
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-off | cross-off | cross | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off |
High Tide | 6:00PM1.27m | 6:24AM1.13m | 6:36PM1.13m | 7:10AM1.01m | 7:30PM1.00m | ||||||||||||||||
Low Tide | 11:48AM0.38m | 00:15AM0.41m | 12:20PM0.51m | 00:53AM0.53m | 1:03PM0.63m | ||||||||||||||||
 | | |  | | | | | | | | | | | | | | | | | | |
 | — | — | — | — | — | — | 6:43 | — | — | — | — | — | — | — | 6:41 | — | — | — | — | — | — |
 | — | — | 6:37 | — | — | — | — | — | — | — | 6:37 | — | — | — | — | — | — | — | 6:38 | — | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 15 | 17 | 16 | 14 | 13 | 12 | 12 | 12 | 15 | 18 | 17 | 14 | 13 | 12 | 12 | 11 | 15 | 20 | 20 | 15 | 14 |
Feels °C | 7 | 8 | 8 | 6 | 7 | 5 | 5 | 4 | 7 | 9 | 8 | 6 | 8 | 7 | 9 | 8 | 11 | 14 | 13 | 10 | 11 |
Swell 1 Height (m) Direction Period (s) | SW 13 | SW 13 | WSW 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 11 | SW 13 | SW 13 | SW 13 |
| kJ | 2561 | 2456 | 1193 | 827 | 1127 | 1352 | 1429 | 1131 | 1031 | 1025 | 945 | 794 | 710 | 685 | 600 | 640 | 640 | 652 | 946 | 796 | 864 |
Swell 2 Height (m) Direction Period (s) | SW 14 | SW 14 | SW 13 | WSW 13 | W 13 | W 13 | W 12 | W 12 | W 12 | — | — | — | — | — | — | — | W 20 | W 20 | SW 18 | SW 18 | WSW 18 |
| kJ | 534 | 471 | 628 | 669 | 408 | 324 | 144 | 144 | 139 | — | — | — | — | — | — | — | 7 | 7 | 12 | 49 | 31 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | — | — | S 6 | S 7 | S 7 | SSE 7 | SSE 7 | SSE 7 | SSE 7 | SSE 7 | S 7 | SSE 7 | SSE 7 | SSE 7 | SSE 7 | SSE 7 | SSE 7 | SSE 6 | SSE 6 | SSE 7 | SSE 7 |
| kJ | — | — | 245 | 493 | 478 | 408 | 371 | 350 | 307 | 290 | 390 | 423 | 255 | 233 | 178 | 99 | 99 | 161 | 235 | 223 | 145 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 342 | 380 | 402 | 122 | 160 | 162 | 59 | 59 | 162 | 402 | 862 | 122 | 3 | 3 | 0 | 0 | 0 | 3 | 125 | 3 | 0 |
Best forecast wave conditions in Cape Town | |||||||||||||||||||||
Best forecast wave conditions in South Africa | |||||||||||||||||||||
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