
Surf Forecasts:
Eerste Steen surf forecast from 10 Aug 2026:
- Best quality surf: Monday 10 Aug, 11PM (local time) - 7ft (2.2m), 10s period, S swell with cross-offshore winds.
- Most powerful swell: Monday 17 Aug, 2AM (local time) - 10ft (3.0m), 16s period, WSW swell with 4,189 kJ wave energy.
- Next surfable swell (1★+): Monday 10 Aug, 11PM (local time) - 7ft (2.2m), 10s period with S swell.
Best Forecast Surf Conditions for Eerste Steen this week:
The surf forecast for Eerste Steen over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Monday (Aug 10) at 11PM. The primary swell is predicted to be 2.2m and 10s period with a secondary swell of 1.9m and 10s. Another secondary swell of 1.5m and 14s is also forecast. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Eerste Steen in the next 16 days are 3.0m 16s and forecast to arrive on Monday (Aug 17) at 2AM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.5m 7s period and expected on Thursday (Aug 13) at 5PM.
| Wave Type | Time (SAST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 11PM (Mon 10th Aug) | 7ft (2.2m) 10s |
| Best Surf | 11PM (Mon 10th Aug) | 7ft (2.2m) 10s |
| Most Powerful | 2AM (Mon 17th Aug) | 10ft (3.0m) 16s |
Table - best surf conditions forecast for Eerste Steen over the next 16 days.
The Lowdown
Alright, Rusty here, and I’ve been staring at the charts for our patch of coast. It’s a tale of two weeks, really. The first few days are building, then we get a serious window of quality, and the very end of the run looks big and powerful.
We’re kicking off at Eerste Steen. The water temp is sitting pretty much where it should be for this time of year, nothing unusual there.
Monday (August 10th) is a bit of a washout. We’ve got a 6ft to 6ft SW swell rolling in, but that 15 to 18 mph cross-off wind from the SE is just going to trash it. The energy is there (1218 to 1416), but it’s not surfable. You’re better off waiting.
Tuesday (August 11th) morning is where we start to see a glimmer. The swell drops slightly to 6ft from the SSW, but the wind backs right off to a gentle 9 mph from the E, staying cross-off. The energy bumps up a notch (1119), and the period stretches to 12 seconds. It’s clean. This is a solid warm-up session.
Now, Wednesday (August 12th) is our first real standout. We’ve got a proper groundswell rolling in. The swell is 6ft from the SW, but the period jumps to a very long 18 seconds. That’s pure, lined-up energy. The wind is a light 9 mph from the E, cross-off, keeping it glassy. The combined energy is pumping at 2273, and the morning session looks excellent. This is for the experienced crew, as that long-period swell will be zipping down the line. Thursday (August 13th) keeps the quality high, with a bigger 8ft WSW swell and the same long 18-second period. By the afternoon, the wind goes fully offshore from the ENE at 12 mph. This is peak condition, moderate energy (3417) but absolutely clean. This is a day for the big boards and a lot of patience for the sets.
The weekend (August 15th-16th) sees the size drop back to the 6ft to 7ft range. Saturday afternoon is a little gem: glassy conditions with 6ft of WSW swell and a 13-second period. It won’t have the power of midweek, but it will be clean and fun for the intermediate surfer.
The following week kicks off with a bang on Monday (August 17th). We’re looking at a solid 10ft WSW swell with a 14-second period. The energy is massive (3338), but the wind is a cross-off from the SE. This is expert territory only. That size and power is going to be a handful, especially if it’s a beach break. For the average punter, it might be a better day for kite surfing than trying to paddle out.
The very best of the late run looks to be Saturday, August 22nd. The morning session is absolute gold. A 8ft SW swell, a 11-second period, and glassy conditions with a slight air from the SW. The energy is solid at 1350, and the forecast says “excellent for experienced surfers.” This is the one to circle on your calendar.
We then get a final push on Sunday, August 23rd. A big 10ft SSW swell, with a 16-second period, sending the energy off the charts at 5012. The wind is a light cross from the S, so it’ll be a bit lumpy, but the power is undeniable. Again, strictly for the experts.
After that, the last few days of the outlook taper off. Monday and Tuesday (August 24th-25th) see the size drop back to the 5ft to 8ft range with cleaner winds, offering a few more good sessions before the window closes.
So, if you’re picking your battles, the absolute standouts are Wednesday morning (August 12th) and Thursday afternoon (August 13th) for that long-period, offshore perfection. For a more mellow, glassy session, Saturday morning (August 22nd) is your best bet.
Rusty.
Short Range ForecastMostly dry. Warm (max 23°C on Wed afternoon, min 11°C on Mon night). Mainly fresh winds. | Days 5-7 Weather SummaryMostly dry. Warm (max 26°C on Thu afternoon, min 17°C on Sat morning). Wind will be generally light. | ||||||||||||||||||
Monday 10 | Tuesday 11 | Wednesday 12 | Thursday 13 | Friday 14 | Saturday 15 | ||||||||||||||
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 11 | SW 11 | S 9 | SSW 13 | SSW 12 | SSW 12 | SW 21 | SW 18 | SW 18 | SW 16 | WSW 18 | WSW 17 | WSW 16 | WSW 15 | WSW 14 | WSW 14 | WSW 14 | WSW 13 | WSW 13 |
Wave Graph | |||||||||||||||||||
2046 | 738 | 627 | 2088 | 1071 | 647 | 1850 | 2111 | 1952 | 1916 | 3417 | 3073 | 1933 | 1292 | 1393 | 1226 | 1179 | 1144 | 1144 | |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-off | cross-off | cross-off | cross-off | cross | off | cross-off | cross-off | off | cross-off | off | cross-off | cross-off | cross | cross-off | cross | glassy | cross-on |
High Tide | 1:05AM1.35m | 1:45PM1.37m | 2:00AM1.45m | 2:32PM1.51m | 2:47AM1.53m | 3:13PM1.62m | 3:29AM1.57m | 3:52PM1.68m | 4:09AM1.56m | 4:29PM1.69m | 4:46AM1.51m | 5:05PM1.64m | |||||||
Low Tide | 7:32AM0.21m | 7:55PM0.25m | 8:19AM0.10m | 8:44PM0.13m | 9:01AM0.02m | 9:27PM0.05m | 9:40AM-0.01m | 10:07PM0.02m | 10:16AM-0.00m | 10:45PM0.03m | 10:51AM0.05m | 11:22PM0.09m | |||||||
— | 7:30 | — | — | 7:28 | — | — | 7:28 | — | — | 7:26 | — | — | 7:26 | — | — | 7:24 | — | — | |
6:12 | — | 6:12 | — | — | 6:13 | — | — | 6:14 | — | — | 6:14 | — | — | 6:15 | — | — | 6:15 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 13 | 13 | 14 | 12 | 12 | 17 | 16 | 16 | 23 | 22 | 22 | 26 | 23 | 23 | 25 | 23 | 19 | 21 | 16 |
Feels °C | 5 | 6 | 7 | 8 | 8 | 14 | 12 | 12 | 19 | 17 | 17 | 20 | 22 | 20 | 24 | 21 | 16 | 19 | 16 |
Swell 1 Height (m) Direction Period (s) | SW 11 | SW 11 | SW 11 | SSW 13 | SSW 12 | SSW 12 | SW 21 | SW 18 | SW 18 | SW 16 | WSW 18 | WSW 17 | WSW 16 | WSW 15 | WSW 14 | WSW 14 | WSW 14 | WSW 13 | WSW 13 |
2046 | 738 | 453 | 2088 | 1071 | 647 | 1850 | 2111 | 1952 | 1916 | 3417 | 3073 | 1933 | 1292 | 1393 | 1226 | 1179 | 1144 | 1144 | |
Swell 2 Height (m) Direction Period (s) | — | — | SSW 13 | WSW 11 | WSW 10 | WSW 24 | SSW 11 | SW 10 | SW 10 | SW 21 | — | — | — | — | — | — | — | — | — |
— | — | 336 | 66 | 21 | 381 | 350 | 108 | 64 | 890 | — | — | — | — | — | — | — | — | — | |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | SW 26 | WSW 10 | SSW 11 | SSE 10 | SSE 10 | S 11 | — | — | — | — | — | — | — | — | — |
— | — | — | — | 27 | 38 | 247 | 54 | 33 | 9 | — | — | — | — | — | — | — | — | — | |
Wind waves Height (m) Direction Period (s) | — | S 9 | S 9 | — | — | SSE 8 | — | — | — | SE 9 | — | N 7 | — | — | — | — | — | — | — |
— | 480 | 627 | — | — | 175 | — | — | — | 43 | — | 26 | — | — | — | — | — | — | — | |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 163 | 126 | 126 | 0 | 0 | 2 | 0 | 0 | 0 | 0 | 6 | 0 | 0 | 0 | 2 | 0 | 6 | 0 | 31 |
Best forecast wave conditions in Cape Town | |||||||||||||||||||
Best forecast wave conditions in South Africa | |||||||||||||||||||
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Information about the Eerste Steen Surf forecast
The above surf forecast table for Eerste Steen provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Eerste Steen can be found by selecting the local surf guide option on the grey menu. Our Eerste 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 (Eerste 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 Eerste 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.
Eerste 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.











