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Derde Steen Surf Forecast
/ Cape Town (70 surf breaks) /
Surf Forecasts:
Derde Steen surfForecast / Cape Town / South Africa
48hr Weather and Surf, issued 1 pm Saturday 09 May 2026 SASTForecast update in hr min s Forecast update imminent
Derde Steen surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Derde Steen sea temperature is
16.0° C
(Which is 1.2°C colder than average for this time of year)How big are the waves at Derde Steen today?
The current surf forecast for Derde Steen at 5PM is: 1.4m 14s primary swell from a West-southwest direction and 0.4m 13s secondary swell from a South-southeast direction, 0.7m 4s secondary swell from a Northwest direction (forecast issued at 01:00pm May 09). The wind direction is predicted to be cross-shore.
| Time (SAST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (09 May) | 5ft (1.6m) | 14s |
| Afternoon (09 May) | 5ft (1.5m) | 14s |
| Evening (09 May) | 4.5ft (1.3m) | 13s |
Table - waves today at Derde Steen. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastHeavy rain (total 67mm), heaviest during Sat night. Very mild (max 18°C on Sat afternoon, min 13°C on Sat night). Winds decreasing (gales from the NW on Mon morning, moderate winds from the WNW by Tue morning). | ||||||||||||||||||||||||
Sat 9 | Sunday 10 | Monday 11 | Tue 12 | |||||||||||||||||||||
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 | 2 AM | 5 AM | 8 AM | |
Swell Height Map |    |    |    |    | ||||||||||||||||||||
WSW 13 | WSW 14 | WSW 14 | WSW 13 | WSW 13 | SW 13 | SW 13 | W 8 | W 8 | WSW 8 | WSW 10 | WSW 11 | WSW 12 | WSW 12 | WSW 12 | W 10 | W 12 | W 13 | W 13 | W 13 | W 13 | WSW 13 | WSW 13 | WSW 12 | |
560 | 870 | 700 | 680 | 590 | 517 | 501 | 838 | 1123 | 2136 | 4663 | 6419 | 6683 | 6318 | 5959 | 7108 | 13650 | 18383 | 18016 | 14212 | 11185 | 8818 | 7502 | 6043 | |
Wind (km/h) | ||||||||||||||||||||||||
cross-off | cross | cross | cross-off | cross-off | cross-on | cross-on | on | cross-on | cross-on | on | on | cross-on | cross-on | cross | cross | cross | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | |
High Tide | 8:06AM1.01m | 9:10PM1.09m | 9:38AM1.01m | 10:24PM1.16m | 10:56AM1.08m | 11:22PM1.27m | ||||||||||||||||||
Low Tide | 2:23PM0.54m | 3:35AM0.61m | 3:47PM0.54m | 4:54AM0.51m | 4:58PM0.48m | 5:51AM0.38m | ||||||||||||||||||
 |  |  |  | |  | |  | |  | |  |  | | |  | | | | | | | | | |
 | — | — | — | — | — | — | 7:26 | — | — | — | — | — | — | — | 7:26 | — | — | — | — | — | — | — | 7:28 | — |
 | — | — | 5:58 | — | — | — | — | — | — | — | 5:57 | — | — | — | — | — | — | — | 5:57 | — | — | — | — | 5:55 |
— | — | — | — | — | 6 | 8 | 3 | 2 | 2 | 2 | 2 | 2 | 1 | 1 | 7 | 6 | 7 | 4 | 2 | 2 | 2 | 6 | 1 | |
Temp °C | 16 | 18 | 16 | 15 | 15 | 14 | 13 | 15 | 13 | 14 | 13 | 14 | 13 | 14 | 13 | 14 | 16 | 18 | 18 | 18 | 18 | 17 | 16 | 17 |
12 | 13 | 11 | 10 | 8 | 6 | 7 | 8 | 3 | 3 | 2 | 4 | 5 | 7 | 4 | 2 | 4 | 9 | 9 | 11 | 11 | 12 | 13 | 14 | |
Swell 1 Height (m) Direction Period (s) | WSW 13 | WSW 14 | WSW 14 | WSW 13 | WSW 13 | SW 13 | SW 13 | WSW 13 | WSW 13 | SSE 11 | SE 11 | SW 22 | SW 22 | WSW 12 | WSW 12 | SE 13 | — | — | — | — | WSW 13 | WSW 13 | WSW 13 | WSW 12 |
 kJ | 560 | 870 | 700 | 680 | 590 | 517 | 501 | 555 | 725 | 12 | 5 | 18 | 18 | 6318 | 5959 | 7 | — | — | — | — | 10340 | 8818 | 7502 | 6043 |
Swell 2 Height (m) Direction Period (s) | SW 14 | S 13 | SSE 13 | SSE 12 | SSE 12 | SSE 12 | WSW 9 | SSE 12 | SSE 12 | — | — | SW 22 | SE 14 | SE 11 | SE 14 | — | — | — | — | — | NW 10 | — | NW 9 | SW 13 |
| kJ | 350 | 89 | 56 | 52 | 29 | 28 | 110 | 14 | 13 | — | — | 18 | 8 | 5 | 7 | — | — | — | — | — | 355 | — | 251 | 642 |
Swell 3 Height (m) Direction Period (s) | S 8 | — | W 11 | W 11 | W 11 | — | SSE 12 | — | — | — | — | — | — | SE 14 | SE 11 | — | — | — | — | — | — | — | — | NW 9 |
| kJ | 21 | — | 2 | 2 | 2 | — | 28 | — | — | — | — | — | — | 8 | 4 | — | — | — | — | — | — | — | — | 272 |
Wind waves Height (m) Direction Period (s) | — | NNW 3 | NW 4 | NW 4 | NNW 5 | NW 7 | WNW 7 | W 8 | W 8 | WSW 8 | WSW 10 | WSW 11 | WSW 12 | — | — | W 10 | W 12 | W 13 | W 13 | W 13 | W 13 | NW 10 | W 12 | — |
| kJ | — | 3 | 15 | 46 | 125 | 421 | 340 | 838 | 1123 | 2136 | 4663 | 6419 | 6683 | — | — | 7108 | 13650 | 18383 | 18016 | 14212 | 11185 | 612 | 5260 | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 40 | 38 | 38 | 83 | 83 | 106 | 342 | 380 | 839 | 420 | 421 | 600 | 937 | 937 | 363 | 363 | 937 | 1002 | 991 | 1013 | 600 | 37 | 40 | 38 |
Best forecast wave conditions in Cape Town | ||||||||||||||||||||||||
Best forecast wave conditions in South Africa | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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