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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 1 pm Monday 15 Sep 2025 SAST
How big are the waves at Derde Steen today?
The current surf forecast for Derde Steen at 7PM is: 3.0m 12s primary swell from a Southwest direction and 1.3m 15s secondary swell from a West-southwest direction, 1.5m 5s secondary swell from a Northwest direction (forecast issued at 01:00pm September 15). The wind direction is predicted to be cross-shore.
| Time (SAST) & Date | Wave Height | Wave Period |
|---|---|---|
| Morning (15 Sep) | 6ft (1.9m) | 12s |
| Afternoon (15 Sep) | 7.5ft (2.3m) | 12s |
| Evening (15 Sep) | 10ft (3.0m) | 12s |
Table - waves today at Derde Steen. (Swell directed towards the surf break)
Monday 15 | Tuesday 16 | Wednesday 17 | Thursday 18 | |||||||||||||||||||||
| 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 | |
Rating (10 max) | ||||||||||||||||||||||||
Swell Height Map |    |    |    |    | ||||||||||||||||||||
| Wave Height (m) & direction (?) | ||||||||||||||||||||||||
| Period(s) (?) | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 13 | 12 | 12 | 12 | 11 | 12 | 11 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 12 | 11 | 11 |
Wave (?)Graph  | ||||||||||||||||||||||||
| Energy (?) | 1923 | 2114 | 2486 | 3156 | 5172 | 6481 | 7871 | 7502 | 5895 | 4870 | 4050 | 3842 | 3363 | 3350 | 3295 | 3308 | 3066 | 2696 | 2451 | 2136 | 1854 | 1638 | 1395 | 1151 |
Wind (km/h) | ||||||||||||||||||||||||
| Wind State (?) onshore cross-onshore cross-shore cross-offshore offshore glassy | cross | cross | cross | cross | cross- on | cross- on | cross- on | cross- on | cross- on | on | cross- on | cross- on | cross- on | cross | glass | glass | cross- on | on | cross- on | cross- on | cross | glass | glass | cross- off |
High Tide / height (m) | 9:47AM 1.03 | 10:34PM 1.07 | 11:41AM 1.10 | 12:10AM 1.14 | 12:47PM 1.23 | 1:07AM 1.25 | ||||||||||||||||||
Low Tide / height (m) | 4:11PM 0.60 | 5:18AM 0.51 | 6:04PM 0.51 | 6:33AM 0.41 | 7:05PM 0.38 | 7:20AM 0.30 | ||||||||||||||||||
Monday 15 | Tuesday 16 | Wednesday 17 | Thursday 18 | |||||||||||||||||||||
| Sunrise | - | - | - | - | - | - | - | 6:45 | - | - | - | - | - | - | - | 6:43 | - | - | - | - | - | - | - | 6:41 |
| Sunset | - | - | 6:37 | - | - | - | - | - | - | - | 6:37 | - | - | - | - | - | - | - | 6:37 | - | - | - | - | - |
 | |  |  |  |  | |  | | | |  | | |  | | | | | | | | | | |
Rain (mm) | - | - | - | - | 2 | 1 | 2 | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - | - |
| Temp. °C | 15 | 15 | 15 | 15 | 15 | 15 | 14 | 13 | 13 | 13 | 13 | 13 | 13 | 12 | 11 | 11 | 13 | 13 | 13 | 13 | 13 | 12 | 11 | 11 |
| Feels °C (?) | 10 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 8 | 9 | 10 | 10 | 9 | 9 | 9 | 10 | 8 | 9 | 9 | 11 | 10 | 9 | 8 |
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Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)- Wind Speed (km/h)
Recent Eyeball Surf Reports for Cape Town
Still cross-shore at Derde Steen (moderate winds from the NNW at Observatory wx 19 km from Derde Steen). 2.0m 11s groundswell from the WSW with a 1.1m 15s groundswell, also from the WSW. 2 swells combining so expect closeout sets.
19 km away, 20 min ago
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