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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 7 am Wednesday 13 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
15.4° C
(Which is 1.8°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 3PM is: 3.0m 12s primary swell from a South-southwest direction and 2.2m 12s secondary swell from a West direction (forecast issued at 07:00am May 13). The wind direction is predicted to be onshore and the swell rating is 11.
| Time (SAST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (13 May) | 10ft (3.0m) | 12s |
| Afternoon (13 May) | 10ft (3.0m) | 12s |
| Evening (13 May) | 10ft (3.0m) | 12s |
Table - waves today at Derde Steen. (Swell directed towards the surf break)
Updates in hr min s Forecast update imminent
Short Range ForecastMostly dry. Very mild (max 18°C on Fri afternoon, min 12°C on Thu morning). Wind will be generally light. | ||||||||||||||||||||||||
Wednesday 13 | Thursday 14 | Friday 15 | Sat 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 | 2 AM | |
Swell Height Map |    |    |    |    | ||||||||||||||||||||
SSW 12 | SSW 12 | SSW 12 | SSW 12 | SSW 12 | SSW 12 | SSW 12 | SSW 12 | SSW 12 | SSW 12 | SSW 12 | SSW 11 | SSW 11 | WSW 13 | WSW 13 | WSW 13 | SSW 14 | S 14 | SSW 14 | S 14 | S 14 | SW 15 | WSW 14 | WSW 13 | |
2081 | 2440 | 2676 | 2739 | 2986 | 2694 | 2421 | 2241 | 1715 | 1624 | 1319 | 1107 | 787 | 699 | 521 | 534 | 822 | 1317 | 1817 | 1781 | 1756 | 2360 | 2250 | 2003 | |
Wind (km/h) | ||||||||||||||||||||||||
on | on | on | on | on | cross-on | glassy | glassy | glassy | glassy | glassy | on | on | glassy | glassy | glassy | glassy | cross-off | cross | cross-on | cross | cross | cross-off | cross-off | |
High Tide | 12:45PM1.29m | 00:55AM1.50m | 1:30PM1.40m | 1:39AM1.59m | 2:14PM1.48m | |||||||||||||||||||
Low Tide | 6:38AM0.24m | 6:43PM0.30m | 7:21AM0.11m | 7:29PM0.22m | 8:04AM0.02m | 8:13PM0.14m | ||||||||||||||||||
 |  |  | | |  |  | | |  | | | | | | | | | | | | | | | |
 | 7:28 | — | — | — | — | — | — | — | 7:28 | — | — | — | — | — | — | — | 7:30 | — | — | — | — | — | — | 7:31 |
 | — | — | — | — | 5:54 | — | — | — | — | — | — | — | 5:53 | — | — | — | — | — | — | — | 5:53 | — | — | 5:52 |
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | |
Temp °C | 15 | 16 | 15 | 15 | 15 | 15 | 14 | 13 | 13 | 12 | 14 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 16 | 18 | 17 | 16 | 15 | 15 |
10 | 11 | 11 | 11 | 12 | 13 | 13 | 13 | 12 | 11 | 13 | 13 | 13 | 14 | 15 | 15 | 15 | 15 | 15 | 16 | 14 | 13 | 13 | 13 | |
Swell 1 Height (m) Direction Period (s) | SSW 12 | SSW 12 | SSW 12 | SSW 12 | SSW 12 | SSW 12 | SSW 12 | SSW 12 | SSW 12 | SSW 12 | SSW 12 | SSW 11 | SSW 11 | SSW 11 | SSW 11 | SSW 11 | SSW 10 | S 14 | SSW 14 | S 14 | S 14 | SW 15 | WSW 14 | WSW 13 |
 kJ | 2081 | 2440 | 2676 | 2739 | 2986 | 2694 | 2421 | 2241 | 1715 | 1624 | 1319 | 1107 | 787 | 597 | 521 | 460 | 386 | 1317 | 1817 | 1781 | 1756 | 2360 | 2250 | 2003 |
Swell 2 Height (m) Direction Period (s) | W 12 | W 12 | W 12 | WSW 12 | W 11 | W 11 | WSW 11 | WSW 11 | WSW 11 | WSW 11 | WSW 11 | WSW 11 | WSW 12 | WSW 13 | WSW 13 | WSW 13 | SSW 14 | SW 11 | WSW 15 | WSW 15 | WSW 16 | S 14 | S 13 | S 13 |
| kJ | 1839 | 1691 | 1438 | 1437 | 1060 | 943 | 836 | 681 | 800 | 593 | 593 | 515 | 725 | 699 | 514 | 534 | 822 | 415 | 525 | 917 | 1169 | 1657 | 1584 | 1380 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | W 20 | SW 19 | WSW 19 | WSW 18 | SW 18 | SW 18 | WSW 16 | WSW 16 | SSW 14 | WSW 12 | WSW 12 | SW 11 | SW 11 | SW 11 | — | — | — |
| kJ | — | — | — | — | — | — | — | 8 | 15 | 37 | 61 | 80 | 81 | 151 | 291 | 331 | 393 | 303 | 233 | 254 | 332 | — | — | — |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Nearest Offshore or Glassy | ||||||||||||||||||||||||
Distance (km) | 126 | 126 | 126 | 59 | 32 | 32 | 1 | 1 | 0 | 0 | 0 | 14 | 32 | 0 | 0 | 0 | 0 | 0 | 1 | 3 | 42 | 37 | 0 | 0 |
Best forecast wave conditions in Cape Town | ||||||||||||||||||||||||
Best forecast wave conditions in South Africa | ||||||||||||||||||||||||
Header Global | ||||||||||||||||||||||||
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