Surf Forecasts:
How big are the waves at Derde Steen today (14 Sep):
- Morning surf: Morning surf (14 Sep, local time) - 4.5ft (1.3m), 12s period with SW swell.
- Afternoon surf: Afternoon surf (14 Sep, local time) - 3.5ft (1.1m), 12s period with SW swell.
- Evening surf: Evening surf (14 Sep, local time) - 5.5ft (1.7m), 8s period with NW swell.
The current surf forecast for Derde Steen at 12PM is: 1.1m 12s primary swell from a Southwest direction and 1.2m 5s secondary swell from a North-northwest direction (forecast issued at 07:00am September 14). The wind direction is predicted to be cross-shore.
| Time (SAST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (14 Sep) | 4.5ft (1.3m) | 12s |
| Afternoon (14 Sep) | 3.5ft (1.1m) | 12s |
| Evening (14 Sep) | 5.5ft (1.7m) | 8s |
Table - waves today at Derde Steen. (Swell directed towards the surf break)
Short Range ForecastModerate rain (total 18mm), heaviest on Tue night. Very mild (max 17°C on Mon morning, min 12°C on Tue night). Mainly strong winds. | |||||||||||||||||||||||
Monday 14 | Tuesday 15 | Wednesday 16 | |||||||||||||||||||||
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 13 | SW 13 | SW 12 | SW 12 | SW 12 | SW 12 | NW 8 | NW 8 | SW 11 | SW 11 | SW 18 | SW 17 | SW 16 | SW 15 | SW 15 | WSW 14 | WSW 14 | SW 13 | SW 13 | WSW 13 | SW 13 | WSW 13 | SW 13 |
Wave Graph  | |||||||||||||||||||||||
 kJ | 643 | 504 | 430 | 361 | 272 | 309 | 292 | 221 | 202 | 194 | 165 | 346 | 813 | 1251 | 2061 | 3108 | 3268 | 2886 | 2719 | 1756 | 919 | 888 | 1172 |
Wind (km/h) | |||||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-off | cross | cross | cross | cross-off | cross-off | cross-off | cross | cross | cross | cross | cross | cross-off | cross-off | cross | cross | cross | cross | cross | cross | cross | cross-off |
High Tide | 4:59PM1.52m | 5:18AM1.35m | 5:29PM1.40m | 5:49AM1.24m | 6:00PM1.27m | ||||||||||||||||||
Low Tide | 10:49AM0.16m | 11:15PM0.17m | 11:18AM0.26m | 11:44PM0.28m | 11:48AM0.38m | ||||||||||||||||||
 |  |  |  | |  | |  | | | | | | |  | | |  | | | |  | | |
 | 6:47 | — | — | — | — | — | — | — | 6:46 | — | — | — | — | — | — | — | 6:45 | — | — | — | — | — | — |
 | — | — | — | — | 6:36 | — | — | — | — | — | — | — | 6:37 | — | — | — | — | — | — | — | 6:37 | — | — |
mm | 1 | — | — | 1 | — | — | — | — | 1 | — | — | — | — | 1 | 7 | 5 | 3 | — | — | — | — | — | — |
Temp °C | 15 | 15 | 17 | 17 | 17 | 15 | 14 | 15 | 15 | 14 | 16 | 17 | 16 | 14 | 13 | 13 | 12 | 13 | 15 | 16 | 15 | 14 | 13 |
Feels °C | 12 | 11 | 12 | 11 | 12 | 11 | 10 | 12 | 12 | 10 | 10 | 10 | 10 | 9 | 8 | 9 | 7 | 7 | 7 | 7 | 6 | 6 | 7 |
Swell 1 Height (m) Direction Period (s) | 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 15 | SW 15 | WSW 14 | WSW 14 | SW 13 | SW 13 | WSW 13 | SW 13 | WSW 13 | SW 13 |
| kJ | 643 | 504 | 430 | 361 | 272 | 268 | 263 | 220 | 202 | 194 | 165 | 177 | 813 | 1251 | 2061 | 3108 | 3268 | 2886 | 2719 | 1756 | 919 | 888 | 1172 |
Swell 2 Height (m) Direction Period (s) | — | — | — | SE 13 | SSE 13 | SE 7 | — | SE 13 | S 13 | SW 16 | SW 18 | SW 17 | — | — | WNW 8 | WNW 8 | SW 15 | SW 14 | SW 14 | SW 14 | WSW 13 | SW 13 | W 13 |
| kJ | — | — | — | 26 | 16 | 2 | — | 7 | 3 | 43 | 152 | 346 | — | — | 497 | 178 | 215 | 528 | 534 | 471 | 901 | 755 | 483 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | SE 13 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | 7 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | NNW 4 | NNW 5 | NW 5 | NW 6 | NW 7 | NW 7 | NW 8 | NW 8 | NW 8 | NW 7 | NW 6 | NW 7 | WNW 7 | WNW 8 | — | — | — | — | — | S 6 | S 6 | S 6 | S 7 |
| kJ | 32 | 46 | 60 | 122 | 221 | 309 | 292 | 221 | 160 | 194 | 141 | 315 | 431 | 487 | — | — | — | — | — | 170 | 239 | 324 | 411 |
Nearest Offshore or Glassy | |||||||||||||||||||||||
Distance (km) | 40 | 40 | 83 | 188 | 83 | 83 | 83 | 40 | 32 | 188 | 234 | 195 | 234 | 177 | 32 | 126 | 95 | 342 | 342 | 343 | 160 | 160 | 59 |
Best forecast wave conditions in Cape Town | |||||||||||||||||||||||
Best forecast wave conditions in South Africa | |||||||||||||||||||||||
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