Surf Forecasts:
How big are the waves at Derde Steen today (21 Oct):
- Morning surf: Morning surf (21 Oct, local time) - 11ft (3.5m), 12s period with WSW swell.
- Afternoon surf: Afternoon surf (21 Oct, local time) - 10ft (3.0m), 12s period with WSW swell.
- Evening surf: Evening surf (21 Oct, local time) - 8ft (2.5m), 12s period with WSW swell.
The current surf forecast for Derde Steen at 7AM is: 3.5m 12s primary swell from a West-southwest direction (forecast issued at 01:00am October 21). An open ocean swell of 0.5m 4s is not directed at the surf break. The wind direction is predicted to be cross-offshore and the swell rating is 11.
| Time (SAST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (21 Oct) | 11ft (3.5m) | 12s |
| Afternoon (21 Oct) | 10ft (3.0m) | 12s |
| Evening (21 Oct) | 8ft (2.5m) | 12s |
Table - waves today at Derde Steen. (Swell directed towards the surf break)
Short Range ForecastLight rain (total 5mm), mostly falling on Wed morning. Warm (max 20°C on Fri afternoon, min 13°C on Thu night). Winds decreasing (fresh winds from the N on Wed morning, calm by Fri night). | ||||||||||||||||||||||||
Wednesday 21 | Thursday 22 | Friday 23 | ||||||||||||||||||||||
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 | WSW 12 | WSW 12 | WSW 12 | WSW 12 | WSW 12 | WSW 12 | SW 12 | SW 12 | SW 12 | SW 11 | SW 11 | SW 11 | SW 11 | SW 11 | SW 11 | SW 11 | SW 11 | SSW 12 | SSW 12 | SSW 12 | SSW 11 | SSW 11 | SSW 11 |
Wave Graph  | ||||||||||||||||||||||||
 kJ | 2027 | 3124 | 3436 | 3349 | 2721 | 2343 | 1966 | 1398 | 1213 | 1052 | 981 | 846 | 831 | 770 | 836 | 891 | 927 | 675 | 934 | 1294 | 1154 | 957 | 814 | 617 |
Wind (km/h) | ||||||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross | cross-off | cross | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | on | on | on | on | cross-on | cross | cross-off | cross-off | off | on | on | on | cross-on | cross-on |
High Tide | 11:45PM1.06m | 12:08PM1.22m | 00:30AM1.18m | 12:44PM1.35m | 1:07AM1.29m | 1:17PM1.47m | ||||||||||||||||||
Low Tide | 5:55AM0.49m | 6:32PM0.42m | 6:34AM0.39m | 7:06PM0.29m | 7:09AM0.29m | 7:38PM0.16m | ||||||||||||||||||
 | |  |  | |  |  |  |  | |  | | | |  | | | | | |  | | | | |
 | — | 5:58 | — | — | — | — | — | — | — | 5:56 | — | — | — | — | — | — | — | 5:56 | — | — | — | — | — | — |
 | — | — | — | — | — | 7:02 | — | — | — | — | — | — | — | 7:04 | — | — | — | — | — | — | — | 7:05 | — | — |
mm | 1 | 1 | 1 | 1 | 1 | — | 1 | — | — | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 13 | 13 | 14 | 17 | 18 | 17 | 16 | 15 | 15 | 15 | 15 | 15 | 16 | 16 | 15 | 14 | 13 | 13 | 14 | 18 | 20 | 17 | 16 | 16 |
Feels °C | 6 | 7 | 8 | 13 | 14 | 13 | 14 | 14 | 13 | 14 | 13 | 12 | 13 | 13 | 13 | 13 | 12 | 12 | 13 | 15 | 16 | 13 | 14 | 15 |
Swell 1 Height (m) Direction Period (s) | SW 12 | WSW 12 | WSW 12 | WSW 12 | WSW 12 | WSW 12 | WSW 12 | SW 12 | SW 12 | SW 12 | SW 11 | SW 11 | SW 11 | SW 11 | SW 11 | SW 11 | SW 11 | SW 11 | SSW 12 | SSW 12 | SSW 12 | SSW 11 | SSW 11 | SSW 11 |
| kJ | 2027 | 3124 | 3436 | 3349 | 2721 | 2343 | 1966 | 1398 | 1213 | 1052 | 981 | 846 | 831 | 770 | 836 | 891 | 927 | 675 | 934 | 1294 | 1154 | 957 | 814 | 617 |
Swell 2 Height (m) Direction Period (s) | — | — | — | — | — | — | W 11 | W 11 | W 11 | W 11 | W 11 | W 11 | W 11 | W 11 | W 11 | W 11 | W 11 | SSW 11 | SW 11 | W 10 | W 10 | W 10 | W 9 | W 9 |
| kJ | — | — | — | — | — | — | 62 | 335 | 396 | 440 | 457 | 394 | 394 | 335 | 338 | 277 | 223 | 380 | 396 | 125 | 92 | 89 | 61 | 58 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | W 10 | W 10 | W 13 | W 16 | W 16 | W 16 | W 16 |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 175 | 131 | 3 | 5 | 5 | 5 | 19 |
Wind waves Height (m) Direction Period (s) | NNW 5 | NNW 6 | N 4 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | 59 | 107 | 10 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 276 | 283 | 38 | 32 | 32 | 40 | 32 | 32 | 32 | 32 | 32 | 32 | 32 | 32 | 3 | 1 | 0 | 0 | 0 | 30 | 37 | 37 | 3 | 2 |
Best forecast wave conditions in Cape Town | ||||||||||||||||||||||||
Best forecast wave conditions in South Africa | ||||||||||||||||||||||||
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