Surf Forecasts:
How big are the waves at Derde Steen today (15 Sep):
- Morning surf: Morning surf (15 Sep, local time) - 5ft (1.6m), 7s period with NW swell.
- Afternoon surf: Afternoon surf (15 Sep, local time) - 6.5ft (2.0m), 7s period with NW swell.
- Evening surf: Evening surf (15 Sep, local time) - 6ft (1.9m), 15s period with SW swell.
The current surf forecast for Derde Steen at 6PM is: 1.4m 16s primary swell from a Southwest direction and 2.1m 7s secondary swell from a Northwest direction (forecast issued at 01:00pm September 15). The wind direction is predicted to be cross-shore.
| Time (SAST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (15 Sep) | 5ft (1.6m) | 7s |
| Afternoon (15 Sep) | 6.5ft (2.0m) | 7s |
| Evening (15 Sep) | 6ft (1.9m) | 15s |
Table - waves today at Derde Steen. (Swell directed towards the surf break)
Short Range ForecastModerate rain (total 17mm), heaviest on Tue night. Very mild (max 18°C on Thu afternoon, min 12°C on Tue night). Winds decreasing (strong winds from the SSE on Wed afternoon, light winds from the ESE by Fri morning). | |||||||||||||||||||||
Tue 15 | Wednesday 16 | Thursday 17 | |||||||||||||||||||
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) | NW 6 | SW 17 | SW 16 | SW 15 | SW 15 | SW 14 | WSW 14 | SW 13 | SW 13 | WSW 13 | WSW 13 | WSW 13 | SW 13 | SW 13 | SW 13 | SW 12 | SW 12 | SW 12 | SW 12 | SW 12 | SW 12 |
Wave Graph  | |||||||||||||||||||||
 kJ | 224 | 350 | 813 | 1251 | 2215 | 3236 | 3316 | 2959 | 2787 | 1756 | 1156 | 888 | 1037 | 1352 | 1429 | 1131 | 1031 | 1180 | 945 | 794 | 710 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross | cross | cross-off | cross | cross | cross | cross | cross | cross | cross | cross | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross | cross-off | cross-off |
High Tide | 5:29PM1.40m | 5:49AM1.24m | 6:00PM1.27m | 6:24AM1.13m | 6:36PM1.13m | ||||||||||||||||
Low Tide | 11:18AM0.26m | 11:44PM0.28m | 11:48AM0.38m | 00:15AM0.41m | 12:20PM0.51m | ||||||||||||||||
 |  | |  |  | |  |  | | | |  | | | | | | | | | | |
 | — | — | — | — | — | — | 6:45 | — | — | — | — | — | — | — | 6:43 | — | — | — | — | — | — |
 | — | — | 6:37 | — | — | — | — | — | — | — | 6:37 | — | — | — | — | — | — | — | 6:37 | — | — |
mm | — | — | — | 3 | 6 | 8 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 16 | 17 | 16 | 14 | 13 | 12 | 13 | 13 | 15 | 17 | 15 | 14 | 12 | 12 | 12 | 12 | 15 | 18 | 17 | 14 | 13 |
Feels °C | 9 | 10 | 9 | 9 | 10 | 9 | 8 | 6 | 7 | 8 | 6 | 6 | 6 | 6 | 6 | 6 | 8 | 10 | 8 | 6 | 8 |
Swell 1 Height (m) Direction Period (s) | SW 11 | SW 11 | SW 16 | SW 15 | SW 15 | SW 14 | WSW 14 | SW 13 | SW 13 | WSW 13 | WSW 13 | WSW 13 | SW 13 | SW 13 | SW 13 | SW 12 | SW 12 | SW 12 | SW 12 | SW 12 | SW 12 |
| kJ | 168 | 177 | 813 | 1251 | 2215 | 3236 | 3316 | 2959 | 2787 | 1756 | 1156 | 888 | 1037 | 1352 | 1429 | 1131 | 1031 | 1180 | 945 | 794 | 710 |
Swell 2 Height (m) Direction Period (s) | SW 18 | SW 17 | — | — | WNW 7 | WNW 8 | SW 15 | SW 14 | SW 14 | SW 14 | SW 13 | SW 13 | W 13 | W 12 | W 12 | W 12 | W 12 | — | — | — | — |
| kJ | 152 | 350 | — | — | 327 | 166 | 215 | 528 | 534 | 471 | 628 | 683 | 483 | 383 | 144 | 144 | 139 | — | — | — | — |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | NW 6 | NW 7 | NW 7 | WNW 7 | — | — | — | — | — | S 6 | S 6 | S 7 | S 8 | SSE 7 | SSE 7 | SSE 7 | SSE 7 | SSE 7 | S 6 | S 7 | SSE 6 |
| kJ | 224 | 312 | 428 | 478 | — | — | — | — | — | 166 | 200 | 389 | 454 | 261 | 319 | 293 | 268 | 206 | 361 | 355 | 219 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 195 | 283 | 195 | 177 | 7 | 458 | 73 | 324 | 342 | 160 | 160 | 160 | 59 | 59 | 59 | 59 | 162 | 125 | 402 | 162 | 3 |
Best forecast wave conditions in Cape Town | |||||||||||||||||||||
Best forecast wave conditions in South Africa | |||||||||||||||||||||
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