
Surf Forecasts:
Boneyards surf forecast from 11 Aug 2026:
- Best quality surf: Wednesday 12 Aug, 11PM (local time) - 7ft (2.1m), 16s period, SW swell with offshore winds.
- Most powerful swell: Tuesday 18 Aug, 5AM (local time) - 11ft (3.5m), 14s period, SW swell with 4,863 kJ wave energy.
- Next surfable swell (1★+): Wednesday 12 Aug, 2AM (local time) - 5ft (1.6m), 21s period with SW swell.
Best Forecast Surf Conditions for Boneyards this week:
The surf forecast for Boneyards over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Wednesday (Aug 12) at 2AM. The primary swell is predicted to be 1.6m and 21s period with a secondary swell of 0.9m and 11s. The wind is predicted to be offshore as the swell arrives.
The most powerful waves expected at Boneyards in the next 16 days are 3.5m 14s and forecast to arrive on Tuesday (Aug 18) at 5AM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 2.5m 8s period and expected on Tuesday (Aug 11) at 8PM.
| Wave Type | Time (SAST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 2AM (Wed 12th Aug) | 5ft (1.6m) 21s |
| Best Surf | 11PM (Wed 12th Aug) | 7ft (2.1m) 16s |
| Most Powerful | 5AM (Tue 18th Aug) | 11ft (3.5m) 14s |
Table - best surf conditions forecast for Boneyards over the next 16 days.
The Lowdown
Alright crew, Rusty here. We’re looking at a single spot lighting up the extended forecast, so let’s break it down.
The water temp is about average for this time of year, so nothing wild there.
We start Tuesday the 11th with some surf, but it’s not the best. Tuesday morning sees a 6ft SSW swell at 12 seconds, but it’s getting hammered by a strong ESE breeze at 30 km/h. The combined energy is moderate at 966, and while it’s offshore and clean, that wind is cranking, making it tough to get into. Tuesday afternoon drops to 4ft and the wind kicks up to 40 km/h – strong offshore and clean, but you’ll be fighting it all the way. Not worth it.
Now, Wednesday the 12th is where it gets interesting. Wednesday morning delivers a 6ft SW swell with a very long 18-second period – that’s proper groundswell. The combined energy jumps to 2452, and with a light E breeze at 10 km/h blowing cross-offshore, the conditions are clean. This is a solid option for experienced surfers, but keep in mind that long period swell like this can break a bit straight at a beach setup. Boneyards is a reef, so it should handle it well. Wednesday afternoon is much the same, with a 7ft SW swell at 17 seconds and light SE cross-off winds. Still clean, still good energy at 2456.
Thursday the 13th sees the swell building to 8ft SW at 17 seconds, but the wind swings NNE cross-shore at 15 km/h, bringing a bit of cross-chop. The energy is strong at 3782, but the quality drops. Thursday afternoon is a similar story with a 8ft WSW swell and light NNW cross-on wind. It’s not terrible, but not the cleanest.
Friday the 14th is a sleeper hit. The morning is a bit messy with cross-on wind, but Friday afternoon? It goes glassy. A 6ft WSW swell at 14 seconds, combined energy of 1517, and absolutely no wind. That’s a beautiful window for a solo session. The swell is a touch over 5ft, so it’s not for beginners, but for the intermediate crew, it’s clean and lined up.
Saturday the 15th and Sunday the 16th offer rideable waves, but the wind is mostly cross or cross-onshore, keeping the surface a bit bumpy. Sunday afternoon, however, turns clean again with a 7ft WSW swell and a light SSE cross-off breeze at 15 km/h. Energy is 1621 – a solid, clean option.
Monday the 17th is a write-off. An 8ft swell is on offer, but the wind is onshore and choppy. Not worth a paddle.
Tuesday the 18th brings a 10ft SW swell, but with a short 12-second period and strong cross-off winds. The energy is 2973, but that’s big, powerful, and messy. This is expert-only territory, and even then, it’s a handful.
The middle of the week (19th-21st) drops right off. Swell drops to 5ft-4ft with fresh offshore winds, but the energy is weak (670-923). It’s surfable if you’re desperate, but nothing to get excited about. There’s a three-day gap of poor to marginal conditions here.
Now, the real standout comes in the second week. Saturday the 22nd is a gem. A 7ft WSW swell at 15 seconds with a gentle E offshore breeze at 15 km/h. Combined energy is 3060, and the conditions are clean and glassy. That’s a proper morning session, and it’s the best of the whole forecast. The afternoon holds up well too, with a 6ft WSW swell at a very long 18 seconds and clean cross-off winds.
Sunday the 23rd is another strong one. A 10ft WSW swell at 15 seconds, moderate offshore SE wind at 20 km/h, and energy of 3393. This is big, clean, and powerful – experts only. The afternoon drops to 8ft but stays clean.
After that, the window closes. Monday the 24th is rideable but small (6ft) with cross-on wind, and from Tuesday the 25th through Wednesday the 26th, the swell fades and the wind gets messy. The last day, Wednesday the 26th, offers a 6ft SW swell with fresh offshore wind, but the energy is moderate at 1338 – it’s a clean end to the run, but not a standout.
Bottom line: The best of the lot is Saturday the 22nd morning. Clean, solid groundswell, light offshore wind, and a reef that’ll handle the long period. Don’t sleep on Friday the 14th afternoon either – that glassy session is a gift.
Rusty.
Short Range ForecastMostly dry. Warm (max 24°C on Thu afternoon, min 12°C on Tue morning). Winds decreasing (fresh winds from the ESE on Tue night, calm by Thu afternoon). | Days 4-6 Weather SummaryMostly dry. Very mild (max 19°C on Fri morning, min 14°C on Fri night). Wind will be generally light. | ||||||||||||||||||||
Tuesday 11 | Wednesday 12 | Thursday 13 | Friday 14 | Saturday 15 | Sunday 16 | Monday 17 | |||||||||||||||
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) | SSW 12 | SSW 12 | SW 21 | SW 18 | SW 17 | SW 16 | SW 17 | WSW 16 | WSW 16 | WSW 15 | WSW 14 | WSW 14 | WSW 14 | WSW 14 | WSW 14 | WSW 14 | WSW 14 | WSW 13 | WSW 14 | WSW 14 | WSW 13 |
Wave Graph | |||||||||||||||||||||
876 | 483 | 2150 | 2344 | 2375 | 2201 | 3538 | 2535 | 1908 | 1559 | 1517 | 1333 | 1325 | 1344 | 1161 | 1277 | 1858 | 2412 | 3078 | 2462 | 3233 | |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | off | off | off | off | glassy | off | cross-off | glassy | cross | cross-on | cross-on | cross-on | glassy | glassy | cross-on | cross-on | cross-on | off | cross-on | cross-on | cross-on |
High Tide | 2:32PM1.51m | 2:47AM1.53m | 3:14PM1.62m | 3:29AM1.56m | 3:53PM1.68m | 4:09AM1.56m | 4:29PM1.69m | 4:46AM1.51m | 5:05PM1.64m | 5:21AM1.43m | 5:39PM1.55m | 5:56AM1.33m | 6:12PM1.43m | ||||||||
Low Tide | 8:20AM0.10m | 8:44PM0.13m | 9:02AM0.02m | 9:27PM0.05m | 9:40AM-0.01m | 10:08PM0.02m | 10:16AM-0.00m | 10:46PM0.04m | 10:51AM0.05m | 11:22PM0.10m | 11:24AM0.14m | 11:56PM0.19m | 11:56AM0.25m | 00:31AM0.30m | |||||||
7:30 | — | — | 7:28 | — | — | 7:28 | — | — | 7:26 | — | — | 7:26 | — | — | 7:24 | — | — | 7:24 | — | — | |
— | 6:13 | — | — | 6:14 | — | — | 6:14 | — | — | 6:15 | — | — | 6:15 | — | — | 6:16 | — | — | 6:16 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 2 |
Temp °C | 12 | 16 | 14 | 16 | 20 | 21 | 21 | 24 | 20 | 19 | 17 | 16 | 15 | 16 | 15 | 16 | 17 | 16 | 16 | 17 | 16 |
Feels °C | 6 | 9 | 7 | 12 | 18 | 16 | 17 | 18 | 18 | 14 | 13 | 13 | 14 | 15 | 14 | 14 | 15 | 14 | 13 | 14 | 13 |
Swell 1 Height (m) Direction Period (s) | SSW 12 | SSW 12 | SW 21 | SW 18 | SW 17 | SW 16 | SW 17 | WSW 16 | WSW 16 | WSW 15 | WSW 14 | WSW 14 | WSW 14 | WSW 14 | WSW 14 | WSW 14 | WSW 14 | WSW 13 | WSW 14 | WSW 14 | WSW 13 |
876 | 483 | 2150 | 2344 | 2375 | 2201 | 3538 | 2535 | 1908 | 1559 | 1517 | 1333 | 1325 | 1344 | 1161 | 1277 | 1858 | 2412 | 3078 | 2462 | 3233 | |
Swell 2 Height (m) Direction Period (s) | WSW 10 | SW 24 | SSW 11 | SW 10 | SW 10 | SW 21 | SE 11 | SE 11 | SE 9 | ESE 11 | ESE 12 | SE 12 | ESE 9 | ESE 10 | W 5 | ESE 10 | ESE 11 | WSW 17 | ESE 12 | ESE 11 | E 11 |
39 | 455 | 211 | 108 | 65 | 1565 | 224 | 134 | 68 | 87 | 78 | 21 | 46 | 38 | 2 | 19 | 24 | 340 | 13 | 12 | 10 | |
Swell 3 Height (m) Direction Period (s) | SW 26 | WSW 10 | — | — | — | S 10 | — | NNW 6 | — | — | — | SE 12 | — | — | WSW 5 | — | — | ESE 12 | — | — | — |
27 | 20 | — | — | — | 9 | — | 14 | — | — | — | 5 | — | — | 5 | — | — | 13 | — | — | — | |
Wind waves Height (m) Direction Period (s) | SE 8 | SE 7 | SE 8 | SE 8 | SE 8 | SE 9 | — | — | — | — | NNW 4 | NW 4 | — | — | — | NW 4 | — | — | — | — | SW 7 |
489 | 569 | 542 | 313 | 224 | 268 | — | — | — | — | 10 | 7 | — | — | — | 20 | — | — | — | — | 205 | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 13 | 6 | 0 | 0 | 0 | 0 | 1 | 0 | 11 | 6 | 1 | 10 | 0 | 0 | 1 | 1 | 1 | 0 | 1 | 10 | 10 |
Best forecast wave conditions in Cape Town | |||||||||||||||||||||
Best forecast wave conditions in South Africa | |||||||||||||||||||||
Header Global | |||||||||||||||||||||
- Map Icons:
Break
Live Wave Height (m)
Live Wind Speed (km/h)
Surf Rating (10 Max)
Ocean Swells (m)
Wind Speed (km/h)
Latest Updates
Information about the Boneyards Surf forecast
The above surf forecast table for Boneyards provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Boneyards can be found by selecting the local surf guide option on the grey menu. Our Boneyards 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 (Boneyards) 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 Boneyards 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.
Are you planning a holiday in Cape Town? If you are looking for accommodation near Boneyards, camping, hotels and holiday cottages in Cape Town, consider staying in Cape Town which is 26 km (16 miles) away. Other places in and around Cape Town where you can find information about places to rent, and car hire include Robben Island which is 37 km (23 miles) away, Bellville, Kayamnandi and Stellenbosch.











