Surf Forecasts:
How big are the waves at Derde Steen today (21 Jun):
- Morning surf: Morning surf (21 Jun, local time) - 5.5ft (1.7m), 14s period with SW swell.
- Afternoon surf: Afternoon surf (21 Jun, local time) - 6ft (1.9m), 14s period with SW swell.
- Evening surf: Evening surf (21 Jun, local time) - 6ft (1.9m), 14s period with WSW swell.
The current surf forecast for Derde Steen at 7AM is: 1.5m 14s primary swell from a Southwest direction and 1.0m 11s secondary swell from a West-southwest direction (forecast issued at 01:00am June 21). The wind direction is predicted to be cross-offshore and the swell rating is 3.
| Time (SAST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (21 Jun) | 5.5ft (1.7m) | 14s |
| Afternoon (21 Jun) | 6ft (1.9m) | 14s |
| Evening (21 Jun) | 6ft (1.9m) | 14s |
Table - waves today at Derde Steen. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastLight rain (total 7mm), mostly falling on Tue night. Warm (max 20°C on Sun afternoon, min 12°C on Tue night). Winds increasing (calm on Sun morning, fresh winds from the NNW by Tue afternoon). | ||||||||||||||||||||||||
Sunday 21 | Monday 22 | Tuesday 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 15 | SW 15 | SW 14 | SW 14 | SW 14 | SW 14 | WSW 14 | SW 13 | WSW 13 | WSW 13 | WSW 13 | WSW 13 | WSW 13 | SW 12 | SW 12 | SW 12 | SW 12 | SW 12 | SW 12 | SW 12 | SW 12 | SW 13 | WSW 13 | WSW 19 |
Wave Graph  | ||||||||||||||||||||||||
 kJ | 360 | 543 | 1105 | 1179 | 1292 | 1255 | 1272 | 1327 | 1235 | 1198 | 1162 | 1162 | 932 | 996 | 980 | 1010 | 1042 | 944 | 805 | 624 | 666 | 755 | 1838 | 6831 |
Wind (km/h) | ||||||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | off | off | glassy | glassy | glassy | glassy | glassy | off | off | cross-off | cross | cross | cross-on | cross-on | cross-off | cross-off | cross-off | cross-off | cross | cross | cross | cross | on | cross-on |
High Tide | 8:14AM1.13m | 8:44PM1.30m | 9:21AM1.07m | 9:45PM1.24m | 10:33AM1.05m | 10:48PM1.21m | ||||||||||||||||||
Low Tide | 2:15AM0.38m | 2:15PM0.42m | 3:20AM0.43m | 3:18PM0.50m | 4:28AM0.45m | 4:28PM0.54m | ||||||||||||||||||
 | |  | |  | |  |  | |  |  | | | | | | |  |  | | | | | | |
 | — | 7:50 | — | — | — | — | — | — | — | 7:50 | — | — | — | — | — | — | — | 7:50 | — | — | — | — | — | — |
 | — | — | — | — | — | 5:45 | — | — | — | — | — | — | — | 5:45 | — | — | — | — | — | — | — | 5:45 | — | — |
mm | — | — | — | — | — | — | — | 1 | — | — | — | — | — | — | — | — | — | 1 | 1 | — | — | — | 3 | 1 |
Temp °C | 21 | 20 | 19 | 19 | 20 | 19 | 20 | 19 | 19 | 19 | 17 | 16 | 18 | 15 | 15 | 14 | 14 | 14 | 15 | 15 | 16 | 16 | 14 | 13 |
Feels °C | 19 | 18 | 18 | 19 | 20 | 19 | 20 | 18 | 18 | 18 | 15 | 14 | 16 | 13 | 14 | 12 | 10 | 10 | 11 | 10 | 10 | 11 | 13 | 10 |
Swell 1 Height (m) Direction Period (s) | SW 11 | SW 15 | SW 14 | SW 14 | SW 14 | SW 14 | WSW 14 | SW 13 | WSW 13 | WSW 13 | WSW 13 | WSW 13 | WSW 13 | SW 12 | SW 12 | SW 12 | SW 12 | SW 12 | SW 12 | SW 12 | SW 12 | SW 13 | WSW 13 | WSW 19 |
| kJ | 297 | 543 | 1105 | 1179 | 1292 | 1255 | 1272 | 1327 | 1235 | 1198 | 1162 | 1162 | 932 | 996 | 980 | 1010 | 1042 | 944 | 805 | 624 | 666 | 755 | 1838 | 6831 |
Swell 2 Height (m) Direction Period (s) | SW 15 | WSW 11 | — | — | NW 4 | NW 4 | NW 4 | — | — | — | — | W 12 | W 12 | — | S 15 | S 15 | — | SW 16 | — | W 6 | WSW 23 | WSW 21 | SW 20 | — |
| kJ | 360 | 251 | — | — | 4 | 5 | 4 | — | — | — | — | 285 | 108 | — | 17 | 17 | — | 251 | — | 89 | 53 | 305 | 1111 | — |
Swell 3 Height (m) Direction Period (s) | — | S 9 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | SW 16 | — | — | W 10 | — |
| kJ | — | 37 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 157 | — | — | 8 | — |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | NNW 3 | NW 4 | NW 4 | NNW 4 | NNW 4 | NW 4 | WNW 5 | NNW 4 | WNW 6 | WNW 6 | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | 4 | 10 | 13 | 21 | 22 | 21 | 59 | 16 | 165 | 151 | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 6 | 37 | 38 | 32 | 0 | 6 | 40 | 40 | 91 | 195 | 283 | 283 | 17 | 17 |
Best forecast wave conditions in Cape Town | ||||||||||||||||||||||||
Best forecast wave conditions in South Africa | ||||||||||||||||||||||||
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