Surf Forecasts:
Boneyards surf forecast from 18 Aug 2026:
- Best quality surf: Saturday 22 Aug, 11PM (local time) - 10ft (3.0m), 13s period, WSW swell with glassy winds.
- Most powerful swell: Saturday 22 Aug, 8PM (local time) - 15ft (4.5m), 13s period, SW swell with 6,767 kJ wave energy.
- Next surfable swell (1★+): Tuesday 18 Aug, 11AM (local time) - 6.5ft (2.0m), 12s period with WSW 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 Tuesday (Aug 18) at 11AM. The primary swell is predicted to be 2.0m and 12s period with a secondary swell of 1.6m and 13s. The wind is predicted to be cross-offshore as the swell arrives.
The most powerful waves expected at Boneyards in the next 16 days are 4.5m 13s and forecast to arrive on Saturday (Aug 22) at 8PM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.3m 5s period and expected on Thursday (Aug 20) at 11PM.
| Wave Type | Time (SAST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 11AM (Tue 18th Aug) | 6.5ft (2.0m) 12s |
| Best Surf | 11PM (Sat 22nd Aug) | 10ft (3.0m) 13s |
| Most Powerful | 8PM (Sat 22nd Aug) | 15ft (4.5m) 13s |
Table - best surf conditions forecast for Boneyards over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let’s have a proper look at what the ocean’s got cookin’ for us. It’s gonna be a bit of a mixed bag, but there are definitely some windows where it’s gonna be worth paddling out.
Right off the bat, the first call is for Tuesday morning. We’re looking at Boneyards in a solid 7ft of WSW swell, with a 12-second period. The wind is cross-offshore and light, so it should be clean. The water temp is sitting at 57°, which is a bit colder than normal for this time of year, so don’t forget the hood. The combined energy is at 1996, which is moderate, so there’s some push behind it. This one’s for the experienced crew, as it's got some size.
We’ve got some surf on offer through the next few days, but it’s a bit of a rollercoaster. Tuesday afternoon sees the swell bumping up to 10ft, and that's getting into the territory where it's just for the experienced. Wednesday stays around 8ft but the conditions are just a touch more marginal. Then Thursday morning it jumps again to 12ft with a clean look, but that’s serious size and not for the faint of heart. By Friday afternoon, it drops back down to 5ft and cleans up nicely, making for a much more manageable session.
Now, Saturday takes a turn for the ugly. The wind swings onshore and it’s going to be a mess. We get a brief respite on Sunday morning with a clean 8ft and some cross-off wind, that looks like a good one. There’s a bit of a lull early next week, with smaller waves in the 4ft to 5ft range, but nothing too exciting.
Hold on to your hats, because the real standout is shaping up for Tuesday the 25th. The swell builds back to 10ft, but this time with a long 14-second period and a fresh offshore wind. The energy jumps to 3094 and it’s gonna be clean. That’s a proper groundswell, and Boneyards is the kind of place that handles that well. That morning is the pick of the first week.
Things go a bit quiet after that, with some onshore junk mid-week. We got a couple of days with poor surf, so don't expect much from the 26th and 27th. Then the ocean just lights up again. The 28th sees a massive jump in size and energy, with the swell at 10ft and the energy hitting 6568. It’s strong, but the wind is howling at 25 mph, so it’s going to be a wild, lumpy thing.
The real gem of the whole outlook is Sunday, August 30th. We’ve got a 12ft SW groundswell with a 14-second period, and a gentle offshore wind. The energy is right up there at 5078, and the call is for exceptional surf for experts. That, my friends, is the one to circle on the calendar. Monday the 31st looks good too, with a solid 8ft and clean conditions.
The long-range stuff into the first week of September is promising but less certain. There’s another big pulse of energy forecast for Wednesday the 2nd, with 13ft swell and a strong offshore wind. If that comes together, it’ll be another epic day, but it’s a long way out so we’ll just have to wait and see. Until then, keep an eye on that Sunday the 30th.
Rusty out.
Short Range ForecastMostly dry. Very mild (max 14°C on Tue morning, min 12°C on Tue night). Winds increasing (light winds from the S on Wed night, fresh winds from the SE by Thu night). | Days 4-6 Weather SummaryLight rain (total 2mm), mostly falling on Sat morning. Very mild (max 16°C on Sat afternoon, min 12°C on Fri morning). Winds decreasing (fresh winds from the NW on Sat morning, calm by Sat night). | ||||||||||||||||||||
Tuesday 18 | Wednesday 19 | Thursday 20 | Friday 21 | Saturday 22 | Sunday 23 | Monday 24 | |||||||||||||||
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) | WSW 12 | SW 13 | SW 12 | SW 12 | SW 12 | SW 12 | SW 13 | SW 12 | SW 12 | SW 11 | WSW 11 | SSW 11 | SW 10 | SW 13 | SW 13 | WSW 12 | SW 11 | SW 12 | WSW 12 | WSW 11 | SW 13 |
Wave Graph | |||||||||||||||||||||
1159 | 2859 | 2744 | 2078 | 1742 | 2218 | 3675 | 2412 | 1336 | 882 | 458 | 322 | 1991 | 6290 | 4595 | 1981 | 1886 | 1470 | 636 | 422 | 1279 | |
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 | off | cross-off | cross-off | cross-on | on | cross | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off |
High Tide | 6:47PM1.29m | 7:10AM1.09m | 7:28PM1.15m | 8:04AM0.99m | 8:30PM1.04m | 9:46AM0.92m | 10:24PM0.98m | 11:55AM0.96m | 00:06AM1.03m | 12:59PM1.06m | 1:02AM1.13m | 1:37PM1.18m | 1:41AM1.24m | ||||||||
Low Tide | 12:29PM0.38m | 1:08AM0.42m | 1:05PM0.51m | 1:54AM0.54m | 1:55PM0.63m | 3:17AM0.62m | 3:49PM0.70m | 5:32AM0.61m | 6:07PM0.66m | 6:46AM0.52m | 7:07PM0.56m | 7:27AM0.41m | 7:45PM0.45m | ||||||||
7:22 | — | — | 7:22 | — | — | 7:20 | — | — | 7:18 | — | — | 7:18 | — | — | 7:16 | — | — | 7:16 | — | — | |
— | 6:17 | — | — | 6:19 | — | — | 6:19 | — | — | 6:20 | — | — | 6:21 | — | — | 6:21 | — | — | 6:22 | — | |
mm | — | — | — | — | — | — | — | — | — | — | — | — | 2 | — | — | — | — | — | — | — | — |
Temp °C | 14 | 14 | 13 | 13 | 14 | 14 | 14 | 14 | 13 | 13 | 15 | 14 | 15 | 16 | 15 | 13 | 13 | 12 | 13 | 14 | 13 |
Feels °C | 13 | 11 | 8 | 10 | 11 | 13 | 12 | 11 | 7 | 10 | 13 | 13 | 10 | 12 | 13 | 12 | 10 | 9 | 11 | 12 | 10 |
Swell 1 Height (m) Direction Period (s) | WSW 12 | SW 13 | SW 12 | SW 12 | SW 12 | SW 12 | SW 13 | SW 12 | SW 12 | SW 11 | WSW 11 | SSW 11 | SW 10 | SW 13 | SW 13 | WSW 12 | SW 11 | SW 12 | WSW 12 | WSW 11 | SW 13 |
1159 | 2859 | 2744 | 2078 | 1742 | 2218 | 3675 | 2412 | 1336 | 882 | 458 | 322 | 1991 | 6290 | 4595 | 1981 | 1886 | 1470 | 636 | 422 | 1279 | |
Swell 2 Height (m) Direction Period (s) | SW 13 | — | — | — | — | — | — | — | — | — | SSW 11 | WSW 11 | — | — | — | SSW 11 | SSW 10 | — | SW 10 | SSW 9 | SW 16 |
837 | — | — | — | — | — | — | — | — | — | 408 | 291 | — | — | — | 643 | 451 | — | 163 | 295 | 581 | |
Swell 3 Height (m) Direction Period (s) | E 11 | — | — | — | — | — | — | — | — | — | SE 5 | ESE 4 | — | — | — | — | — | — | S 9 | SSW 14 | W 11 |
2 | — | — | — | — | — | — | — | — | — | 23 | 2 | — | — | — | — | — | — | 136 | 125 | 154 | |
Wind waves Height (m) Direction Period (s) | — | — | ESE 4 | — | — | — | — | SSE 3 | SE 5 | SE 5 | — | NW 3 | — | — | — | — | — | — | — | — | SE 3 |
— | — | 13 | — | — | — | — | 8 | 79 | 53 | — | 8 | — | — | — | — | — | — | — | — | 5 | |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 0 | 15 | 13 | 1 | 1 | 0 | 1 | 349 | 1 | 3 | 0 | 32 | 11 | 11 | 0 | 0 | 1 | 0 | 0 | 1 | 25 |
Best forecast wave conditions in Cape Town | |||||||||||||||||||||
Best forecast wave conditions in South Africa | |||||||||||||||||||||
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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.











