Surf Forecasts:
How big are the waves at Derde Steen today (10 Sep):
- Morning surf: Morning surf (10 Sep, local time) - 6ft (1.9m), 15s period with SW swell.
- Afternoon surf: Afternoon surf (10 Sep, local time) - 7ft (2.2m), 14s period with WSW swell.
- Evening surf: Evening surf (10 Sep, local time) - 7ft (2.1m), 13s period with WSW swell.
The current surf forecast for Derde Steen at 8AM is: 1.6m 16s primary swell from a Southwest direction and 1.5m 12s secondary swell from a West-southwest direction, 0.6m 4s secondary swell from a South direction (forecast issued at 01:00am September 10). The wind direction is predicted to be cross-shore.
| Time (SAST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (10 Sep) | 6ft (1.9m) | 15s |
| Afternoon (10 Sep) | 7ft (2.2m) | 14s |
| Evening (10 Sep) | 7ft (2.1m) | 13s |
Table - waves today at Derde Steen. (Swell directed towards the surf break)
Short Range ForecastMostly dry. Warm (max 21°C on Fri afternoon, min 14°C on Thu morning). Wind will be generally light. | ||||||||||||||||||||||||
Thursday 10 | Friday 11 | Saturday 12 | ||||||||||||||||||||||
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 12 | SW 16 | SW 16 | SW 15 | WSW 14 | WSW 13 | WSW 13 | WSW 13 | WSW 13 | WSW 12 | WSW 12 | WSW 12 | WSW 12 | WSW 12 | WSW 12 | WSW 12 | WSW 12 | SW 12 | SW 14 | SW 14 | SW 15 | SW 17 | SW 16 | SW 16 |
Wave Graph  | ||||||||||||||||||||||||
 kJ | 607 | 844 | 1284 | 2328 | 2151 | 1672 | 1528 | 1528 | 1321 | 1134 | 934 | 830 | 816 | 680 | 509 | 467 | 414 | 549 | 1049 | 1500 | 1900 | 3134 | 2875 | 2567 |
Wind (km/h) | ||||||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross | cross | cross-on | cross | cross | cross | cross | cross | cross-off | cross-off | cross | cross | cross | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross | cross | cross-off | cross-off |
High Tide | 2:33AM1.51m | 2:51PM1.66m | 3:10AM1.55m | 3:25PM1.70m | 3:44AM1.55m | 3:58PM1.68m | ||||||||||||||||||
Low Tide | 8:41AM0.05m | 9:08PM0.01m | 9:15AM0.02m | 9:42PM-0.01m | 9:48AM0.03m | 10:15PM0.01m | ||||||||||||||||||
 |  |  | | | | | | | | | |  | |  | | | | | | | | | | |
 | — | 6:52 | — | — | — | — | — | — | — | 6:50 | — | — | — | — | — | — | — | 6:50 | — | — | — | — | — | — |
 | — | — | — | — | — | 6:34 | — | — | — | — | — | — | — | 6:34 | — | — | — | — | — | — | — | 6:35 | — | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 14 | 14 | 14 | 17 | 18 | 17 | 15 | 15 | 14 | 14 | 14 | 17 | 21 | 20 | 17 | 16 | 15 | 15 | 16 | 18 | 19 | 18 | 16 | 16 |
Feels °C | 14 | 14 | 13 | 15 | 15 | 13 | 12 | 13 | 12 | 12 | 12 | 14 | 18 | 17 | 14 | 14 | 12 | 13 | 13 | 16 | 16 | 14 | 12 | 13 |
Swell 1 Height (m) Direction Period (s) | SW 12 | WSW 12 | SW 16 | SW 15 | WSW 14 | WSW 13 | WSW 13 | WSW 13 | WSW 13 | WSW 12 | WSW 12 | WSW 12 | WSW 12 | WSW 12 | WSW 12 | WSW 12 | S 8 | SW 12 | SW 14 | SW 14 | SW 15 | SW 17 | SW 16 | SW 16 |
| kJ | 607 | 616 | 1284 | 2328 | 2151 | 1672 | 1528 | 1528 | 1321 | 1134 | 934 | 830 | 816 | 680 | 509 | 467 | 253 | 549 | 1049 | 1500 | 1900 | 3134 | 2875 | 2567 |
Swell 2 Height (m) Direction Period (s) | SW 17 | SW 16 | WSW 12 | — | — | — | — | — | — | — | SSW 7 | S 7 | — | — | SW 15 | SSW 10 | WSW 12 | S 9 | — | S 8 | SW 19 | — | — | — |
| kJ | 238 | 844 | 595 | — | — | — | — | — | — | — | 247 | 238 | — | — | 54 | 21 | 414 | 59 | — | 219 | 339 | — | — | — |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | SSW 10 | SSW 10 | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 33 | 57 | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | S 4 | S 4 | S 4 | — | S 4 | S 4 | S 4 | S 4 | S 6 | SSW 7 | S 7 | SSE 7 | S 7 | S 7 | S 7 | S 8 | SSE 7 | S 7 | S 8 | SSE 7 | S 8 | SSE 8 | SSE 8 | SSE 8 |
| kJ | 22 | 22 | 11 | — | 14 | 19 | 20 | 27 | 91 | 212 | 302 | 299 | 260 | 333 | 397 | 337 | 353 | 134 | 253 | 198 | 223 | 277 | 346 | 206 |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 1 | 1 | 1 | 42 | 42 | 42 | 73 | 73 | 3 | 3 | 0 | 3 | 122 | 17 | 3 | 3 | 3 | 3 | 3 | 3 | 3 | 937 | 3 | 3 |
Best forecast wave conditions in Cape Town | ||||||||||||||||||||||||
Best forecast wave conditions in South Africa | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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