Surf Forecasts:
Derde Steen surf forecast from 21 Jun 2026:
- Best quality surf: Tuesday 23 Jun, 11PM (local time) - 10ft (3.0m), 19s period, SW swell with cross-onshore winds.
- Most powerful swell: Wednesday 24 Jun, 2PM (local time) - 13ft (4.0m), 16s period, SW swell with 9,278 kJ wave energy.
- Next surfable swell (1★+): Sunday 21 Jun, 2PM (local time) - 6ft (1.9m), 14s period with SW swell.
Best Forecast Surf Conditions for Derde Steen this week:
The surf forecast for Derde Steen over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Sunday (Jun 21) at 2PM. The primary swell is predicted to be 1.9m and 14s period with a secondary swell of 0.4m and 4s. The wind is predicted to be glassy as the swell arrives.
The most powerful waves expected at Derde Steen in the next 16 days are 4.0m 16s and forecast to arrive on Wednesday (Jun 24) at 2PM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.0m 6s period and expected on Thursday (Jun 25) at 8AM.
| Wave Type | Time (SAST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 2PM (Sun 21st Jun) | 6ft (1.9m) 14s |
| Best Surf | 11PM (Tue 23rd Jun) | 10ft (3.0m) 19s |
| Most Powerful | 2PM (Wed 24th Jun) | 13ft (4.0m) 16s |
Table - best surf conditions forecast for Derde Steen over the next 16 days.
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 afternoon, fresh winds from the NW by Tue afternoon). | Days 4-6 Weather SummaryMostly dry. Warm (max 20°C on Thu afternoon, min 13°C on Wed morning). Wind will be generally light. | ||||||||||||||||||||
Sunday 21 | Monday 22 | Tuesday 23 | Wednesday 24 | Thursday 25 | Friday 26 | Saturday 27 | |||||||||||||||
AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | AM | PM | Night | |
Swell Height Map |  |  |  |  |  |  |  | ||||||||||||||
Wave Height (m) Direction Period (s) | SW 14 | SW 14 | WSW 13 | SW 13 | SW 12 | SW 12 | SW 12 | WSW 13 | SW 18 | SW 16 | SW 16 | SW 14 | SW 13 | SW 13 | SW 16 | SW 15 | SW 15 | SW 14 | SW 14 | SW 14 | SW 13 |
Wave Graph  | |||||||||||||||||||||
 kJ | 1179 | 1367 | 1235 | 1077 | 996 | 895 | 570 | 1674 | 8311 | 8828 | 8072 | 4334 | 2214 | 1185 | 1129 | 2959 | 2994 | 2265 | 1918 | 2096 | 2154 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | glassy | glassy | off | cross | cross-on | cross-off | cross | cross | cross | cross | cross | cross-off | cross-off | cross | cross-off | on | on | glassy | glassy | cross-on | cross-off |
High Tide | 8:14AM1.13m | 8:44PM1.30m | 9:21AM1.07m | 9:45PM1.24m | 10:33AM1.05m | 10:48PM1.21m | 11:40AM1.07m | 11:47PM1.20m | 12:36PM1.11m | 00:39AM1.22m | 1:22PM1.17m | 1:25AM1.25m | 2:03PM1.22m | 2:06AM1.29m | |||||||
Low Tide | 2:15PM0.42m | 3:20AM0.43m | 3:18PM0.50m | 4:28AM0.45m | 4:28PM0.54m | 5:32AM0.44m | 5:37PM0.55m | 6:27AM0.41m | 6:36PM0.52m | 7:13AM0.37m | 7:25PM0.47m | 7:53AM0.32m | 8:07PM0.42m | ||||||||
 |  |  | | |  |  |  |  | | |  | | |  | | | | | | | |
 | 7:50 | — | — | 7:50 | — | — | 7:50 | — | — | 7:50 | — | — | 7:50 | — | — | 7:50 | — | — | 7:50 | — | — |
 | — | 5:45 | — | — | 5:45 | — | — | 5:45 | — | — | 5:45 | — | — | 5:45 | — | — | 5:45 | — | — | 5:45 | — |
mm | — | — | — | — | — | 1 | 1 | — | 5 | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 19 | 20 | 20 | 18 | 17 | 15 | 15 | 16 | 13 | 14 | 15 | 14 | 16 | 20 | 19 | 13 | 16 | 15 | 15 | 16 | 15 |
Feels °C | 18 | 20 | 19 | 17 | 15 | 14 | 11 | 10 | 11 | 11 | 12 | 11 | 13 | 19 | 18 | 12 | 15 | 14 | 15 | 15 | 14 |
Swell 1 Height (m) Direction Period (s) | SW 14 | SW 14 | WSW 13 | SW 13 | SW 12 | SW 12 | SW 12 | WSW 13 | SW 18 | SW 16 | SW 16 | SW 14 | SW 13 | SW 13 | SW 12 | SW 15 | SW 15 | SW 14 | SW 14 | SW 14 | SW 13 |
| kJ | 1179 | 1367 | 1235 | 1077 | 996 | 895 | 570 | 1674 | 8311 | 8828 | 8072 | 4334 | 2214 | 1185 | 799 | 2959 | 2994 | 2265 | 1918 | 2096 | 2154 |
Swell 2 Height (m) Direction Period (s) | — | — | — | WSW 12 | — | — | WSW 7 | SW 21 | — | — | — | — | — | S 8 | SW 16 | S 7 | — | — | SW 24 | WSW 22 | WSW 20 |
| kJ | — | — | — | 240 | — | — | 166 | 368 | — | — | — | — | — | 212 | 1129 | 43 | — | — | 22 | 91 | 432 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | SW 16 | — | — | — | — | — | — | SSW 20 | S 9 | — | — | — | — | — | WSW 20 |
| kJ | — | — | — | — | — | — | 157 | — | — | — | — | — | — | 38 | 127 | — | — | — | — | — | 432 |
Wind waves Height (m) Direction Period (s) | — | — | — | — | NW 3 | NNW 4 | NNW 4 | NNE 4 | — | — | — | — | — | — | — | — | — | — | S 6 | S 5 | — |
| kJ | — | — | — | — | 5 | 22 | 15 | 7 | — | — | — | — | — | — | — | — | — | — | 72 | 45 | — |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 0 | 0 | 0 | 6 | 38 | 40 | 195 | 195 | 4 | 4 | 4 | 4 | 0 | 1 | 0 | 10 | 17 | 0 | 0 | 32 | 0 |
Best forecast wave conditions in Cape Town | |||||||||||||||||||||
Best forecast wave conditions in South Africa | |||||||||||||||||||||
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The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Derde Steen surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.
Information about the Derde Steen Surf forecast
The above surf forecast table for Derde Steen provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Derde Steen can be found by selecting the local surf guide option on the grey menu. Our Derde Steen surf forecast is unique since it includes wave energy (power) that defines the real feel of the surf rather than just the height or the period. If you surf the same spot (Derde Steen) regularly then make a mental note of the wave energy from the surf forecast table each time you go. Very soon you may start to choose your surf days based on the wave energy alone combined with our forecast of favourable offshore wind conditions. Our star ratings will help here and of course you will also find the usual wave height and period predictions on our surf forecasts as well as a full break down of the swell components under our advanced users option (to reveal that, click the little Einstein character under the tide times).
Further information to help with frequently asked questions about our surf forecast for Derde Steen may be found under the help tab on the top menu and also by moving your mouse over the question marks on the surf forecast table itself. Please always bear in mind that the forecast is for near-shore open water and local factors at each surf break influence the actual breaking wave height, such as the beach / reef profile, water depths offshore and shelter.
Derde Steen is 8 km (5 miles) from the very large city of Robben Island. If you plan a holiday in Cape Town, look for hotels and other accommodation in Robben Island. Robben Island has rooms for a wide range of budgets as well as cheap car hire and transport links.
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