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Derde Steen Surf Forecast
/ Cape Town (69 surf breaks) /
Surf Forecasts
Derde Steen surfForecast / Cape Town / South Africa
48hr Weather and Surf, issued 7 am Wednesday 21 May 2025 SASTForecast update in -0hr 13 min 38 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
55.4°F
(Which is 7.0°F 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 9AM is: 10ft 13s primary swell from a Southwest direction and 6ft 12s secondary swell from a West direction (forecast issued at 07:00am May 21). The wind direction is predicted to be cross-offshore and the swell rating is 11.
| Time (SAST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (21 May) | 10ft (3.0m) | 13s |
| Afternoon (21 May) | 11ft (3.5m) | 12s |
| Evening (21 May) | 11ft (3.5m) | 13s |
Table - waves today at Derde Steen. (Swell directed towards the surf break)
Updates in -0 hr 13 min 38 s Forecast update imminent
Wednesday 21 | Thursday 22 | Friday 23 | Saturday 24 | Sunday 25 | Monday 26 | Tuesday 27 | Wednesday 28 | |||||||||||||||||||||||||||||||||||||||||||||||||||||
| 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 | 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 | 5 AM | 8 AM | 11 AM | 2 PM | 5 PM | 8 PM | 11 PM | 2 AM | 5 AM | 8 AM | 11 AM | 2 PM | |
Rating (10 max) | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Swell Height Map |    |    |    |    |    |    |    |    | ||||||||||||||||||||||||||||||||||||||||||||||||||||
| Wave Height (ft) & direction (?) | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Period(s) (?) | 12 | 13 | 13 | 12 | 12 | 12 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 13 | 13 | 13 | 13 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 15 | 15 | 15 | 15 | 15 | 14 | 14 | 14 | 14 | 14 | 16 | 16 | 15 | 14 | 13 | 13 | 13 | 12 | 13 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 |
Wave (?)Graph  | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Energy (?) | 3901 | 3110 | 2800 | 3359 | 3330 | 3575 | 4831 | 5830 | 5945 | 6029 | 6115 | 5682 | 5570 | 5156 | 4757 | 4100 | 3361 | 2722 | 2381 | 2103 | 1817 | 1624 | 1439 | 1243 | 1315 | 1298 | 1150 | 1163 | 913 | 827 | 918 | 2055 | 2173 | 2061 | 1977 | 1824 | 1570 | 1547 | 1841 | 3252 | 3697 | 3197 | 2927 | 2254 | 2474 | 1518 | 1083 | 1600 | 1427 | 1059 | 1449 | 1510 | 1272 | 1099 | 1026 | 936 | 918 | 808 | 658 | 647 |
Wind (mph) | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | on | cross | cross- off | cross- off | off | cross- off | cross- off | cross- off | cross- off | off | glass | cross- on | cross | cross | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | off | off | cross | cross- on | glass | glass | cross- off | cross- off | cross- off | cross- on | on | cross- on | cross- on | cross | glass | cross- on | glass | cross- off | cross- on | cross | cross | cross | cross | cross- off | cross- off | cross- off | cross- off | cross- off | cross- off | off | off | cross- off | cross- off | cross- off | cross- on |
High Tide / height (ft) | 10:08AM 3.64 | 10:40PM 4.3 | 11:20AM 3.9 | 11:39PM 4.63 | 12:19PM 4.23 | 12:31AM 4.99 | 1:11PM 4.56 | 1:21AM 5.22 | 1:59PM 4.82 | 2:09AM 5.38 | 2:45PM 4.95 | 2:56AM 5.38 | 3:30PM 5.02 | 3:43AM 5.22 | ||||||||||||||||||||||||||||||||||||||||||||||
Low Tide / height (ft) | 4:11PM 1.44 | 5:12AM 1.18 | 5:18PM 1.25 | 6:10AM 0.75 | 6:17PM 0.98 | 7:01AM 0.36 | 7:10PM 0.72 | 7:48AM 0.07 | 7:59PM 0.52 | 8:34AM -0.1 | 8:47PM 0.39 | 9:19AM -0.1 | 9:35PM 0.39 | 10:04AM 0.07 | ||||||||||||||||||||||||||||||||||||||||||||||
Wednesday 21 | Thursday 22 | Friday 23 | Saturday 24 | Sunday 25 | Monday 26 | Tuesday 27 | Wednesday 28 | |||||||||||||||||||||||||||||||||||||||||||||||||||||
| Sunrise | - | 7:33 | - | - | - | - | - | - | - | 7:35 | - | - | - | - | - | - | - | 7:35 | - | - | - | - | - | - | - | 7:37 | - | - | - | - | - | - | - | 7:37 | - | - | - | - | - | - | - | 7:37 | - | - | - | - | - | - | - | 7:39 | - | - | - | - | - | - | - | 7:39 | - | - |
| Sunset | - | - | - | - | 5:50 | - | - | - | - | - | - | - | 5:49 | - | - | - | - | - | - | - | 5:49 | - | - | - | - | - | - | - | 5:47 | - | - | - | - | - | - | - | 5:47 | - | - | - | - | - | - | - | 5:46 | - | - | - | - | - | - | - | 5:46 | - | - | - | - | - | - | - |
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Rain (in) | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| Temp. °F | 59 | 57 | 57 | 55 | 57 | 57 | 59 | 59 | 59 | 59 | 61 | 63 | 63 | 59 | 59 | 57 | 57 | 59 | 63 | 70 | 72 | 70 | 70 | 70 | 70 | 70 | 73 | 79 | 75 | 73 | 72 | 68 | 64 | 64 | 66 | 66 | 61 | 59 | 59 | 59 | 59 | 59 | 63 | 64 | 63 | 59 | 57 | 57 | 57 | 57 | 61 | 66 | 66 | 61 | 59 | 59 | 59 | 61 | 64 | 66 |
| Feels °F (?) | 54 | 54 | 54 | 50 | 52 | 52 | 55 | 55 | 55 | 57 | 59 | 59 | 59 | 55 | 55 | 54 | 54 | 55 | 59 | 64 | 68 | 66 | 64 | 63 | 63 | 63 | 68 | 73 | 72 | 70 | 68 | 64 | 59 | 59 | 63 | 63 | 59 | 57 | 57 | 59 | 57 | 57 | 61 | 59 | 55 | 52 | 50 | 52 | 54 | 52 | 55 | 61 | 61 | 55 | 54 | 55 | 55 | 55 | 55 | 57 |
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