
Surf Forecasts:
Boneyards surf forecast from 13 Sep 2026:
- Best quality surf: Sunday 13 Sep, 8AM (local time) - 7ft (2.2m), 14s period, SW swell with offshore winds.
- Most powerful swell: Tuesday 15 Sep, 11PM (local time) - 10ft (3.0m), 15s period, WSW swell with 4,334 kJ wave energy.
- Next surfable swell (1★+): Sunday 13 Sep, 8AM (local time) - 7ft (2.2m), 14s 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 Sunday (Sep 13) at 8AM. The primary swell is predicted to be 2.2m and 14s period. The wind is predicted to be offshore as the swell arrives.
The most powerful waves expected at Boneyards in the next 16 days are 3.0m 15s and forecast to arrive on Tuesday (Sep 15) at 11PM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 2.5m 9s period and expected on Sunday (Sep 13) at 11AM.
| Wave Type | Time (SAST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 8AM (Sun 13th Sep) | 7ft (2.2m) 14s |
| Best Surf | 8AM (Sun 13th Sep) | 7ft (2.2m) 14s |
| Most Powerful | 11PM (Tue 15th Sep) | 10ft (3.0m) 15s |
Table - best surf conditions forecast for Boneyards over the next 16 days.
The Lowdown
Right, picture this. We’ve only got one spot on the cards for the next two and a half weeks: Boneyards. It’s a reef break, so it handles swell well, but it’s inconsistent, meaning it needs the right angle to fire. The whole 16-day window is built around this one location, so if the conditions line up, it’s our only game in town.
Right off the bat, Sunday the 13th is the standout. We’ve got a solid 7ft SW groundswell rolling in with a 14-second period, and the wind is light and offshore from the east in the morning. The wave energy is pumping (1665) and it’s described as excellent for experienced surfers. Afternoon goes glassy with a WNW breeze and the swell drops slightly to 6ft, but it’s still got plenty of push (1208 combined energy). This is the best we’re going to see, so if you’re experienced, don’t miss it.
After that, things get messy. Monday the 14th and Tuesday the 15th are a write-off with strong cross-onshore winds and lumpy conditions. Swell hangs around but the quality is poor. We then hit a long stretch from Wednesday the 16th through to the 21st where the wind cranks up from the southeast, often strong offshore or cross-off. While it keeps the faces clean, those near-gale strength winds (28-34 mph) will make paddling out a full-on battle. The swell is generally 6ft to 8ft, but the energy is high, often over 1000, and a few jumps past 1400. It’s hard work for experienced guys only, and the scores reflect that it’s marginal at best.
The next real glimmer shows up on Tuesday the 22nd. Morning brings a moderate offshore breeze, and a clean 7ft SW swell with a 14-second period and solid energy (1735). It’s flagged as excellent for experienced surfers. The afternoon stays clean but the wind gets a little cross-off.
From the 23rd to the 24th, we’re looking at a building swell, hitting over 8ft and then peaking at a solid 10ft on the 24th afternoon. Combined energy soars past 5000, which is serious power. However, the wind is cross-off, keeping things clean, but at that size with that power, this is strictly for experts only on the reef. The long periods (16 seconds) mean the sets will be fat and powerful.
The final few days, from the 25th to the 28th, continue the theme: big swells, strong winds, and the quality is mixed. The 27th has a very long 17-second period SW groundswell at 8ft, but cross-off winds.
In short, there’s a bit of a gap in quality after the first day. The first week has one true golden morning, then a lot of windy, grindy conditions. The second week ramps up in size but remains a challenging, expert-only affair. Boneyards is inconsistent, so this pattern isn’t a huge surprise.
Rusty.
Short Range ForecastLight rain (total 5mm), mostly falling on Sun night. Very mild (max 18°C on Sun morning, min 14°C on Mon night). Winds decreasing (strong winds from the SE on Sat night, calm by Sun afternoon). | Days 5-7 Weather SummaryHeavy rain (total 25mm), heaviest during Tue night. Very mild (max 17°C on Fri afternoon, min 12°C on Tue night). Winds increasing (light winds from the S on Tue night, near gales from the SE by Fri afternoon). | ||||||||||||||||||
Sunday 13 | Monday 14 | Tuesday 15 | Wednesday 16 | Thursday 17 | Friday 18 | ||||||||||||||
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 15 | SW 14 | SW 14 | SW 13 | SW 12 | SW 12 | NW 6 | SW 18 | SW 16 | WSW 14 | SW 13 | WSW 13 | SW 12 | SW 12 | SW 12 | SW 12 | SW 14 | SW 13 | SW 13 |
Wave Graph | |||||||||||||||||||
2633 | 1665 | 1208 | 732 | 473 | 349 | 287 | 307 | 1420 | 3669 | 2570 | 1073 | 1036 | 1058 | 843 | 836 | 1408 | 1387 | 1075 | |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | off | off | glassy | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross-off | cross-off | off | cross-off | off | cross-off | off | off | off | off |
High Tide | 4:16AM1.51m | 4:29PM1.62m | 4:47AM1.44m | 4:59PM1.53m | 5:18AM1.35m | 5:29PM1.40m | 5:49AM1.24m | 5:59PM1.27m | 6:22AM1.13m | 6:35PM1.13m | 7:07AM1.01m | 7:27PM1.00m | |||||||
Low Tide | 10:15PM0.01m | 10:19AM0.08m | 10:45PM0.08m | 10:49AM0.16m | 11:15PM0.17m | 11:18AM0.26m | 11:44PM0.28m | 11:47AM0.38m | 00:14AM0.41m | 12:19PM0.50m | 00:52AM0.53m | 1:01PM0.63m | 2:01AM0.64m | ||||||
— | 6:48 | — | — | 6:48 | — | — | 6:47 | — | — | 6:45 | — | — | 6:43 | — | — | 6:41 | — | — | |
6:35 | — | 6:36 | — | — | 6:37 | — | — | 6:37 | — | — | 6:37 | — | — | 6:38 | — | — | 6:38 | — | |
mm | — | — | — | 3 | 1 | — | — | 1 | — | 25 | — | — | — | — | — | — | — | — | — |
Temp °C | 16 | 18 | 18 | 17 | 15 | 15 | 15 | 15 | 15 | 14 | 13 | 14 | 14 | 14 | 14 | 14 | 15 | 17 | 15 |
Feels °C | 9 | 17 | 18 | 18 | 11 | 10 | 9 | 9 | 9 | 10 | 6 | 5 | 5 | 5 | 4 | 5 | 5 | 7 | 5 |
Swell 1 Height (m) Direction Period (s) | SW 15 | SW 14 | SW 14 | SW 13 | SW 12 | SW 12 | SW 11 | SW 11 | SW 16 | WSW 14 | SW 13 | WSW 13 | SW 12 | SW 12 | SW 12 | SW 12 | SW 14 | SW 13 | SW 13 |
2633 | 1665 | 1208 | 732 | 473 | 349 | 245 | 177 | 1420 | 3669 | 2570 | 1073 | 1036 | 1058 | 843 | 836 | 1408 | 1387 | 1075 | |
Swell 2 Height (m) Direction Period (s) | — | SE 8 | SE 8 | SE 9 | SE 9 | SE 9 | SE 13 | SW 18 | WSW 8 | SW 15 | SW 14 | SW 13 | W 12 | W 12 | W 12 | — | W 11 | SW 18 | SW 16 |
— | 346 | 244 | 129 | 83 | 41 | 26 | 304 | 102 | 485 | 865 | 851 | 530 | 144 | 46 | — | 21 | 80 | 416 | |
Swell 3 Height (m) Direction Period (s) | — | — | — | SE 12 | — | — | — | ESE 13 | SE 13 | NW 7 | ESE 12 | — | E 11 | E 12 | — | — | — | — | — |
— | — | — | 23 | — | — | — | 16 | 7 | 85 | 14 | — | 9 | 3 | — | — | — | — | — | |
Wind waves Height (m) Direction Period (s) | SE 8 | SE 9 | — | NNW 4 | NW 5 | NW 6 | NW 6 | NW 6 | NW 7 | — | SSW 13 | SSE 6 | SE 6 | SE 6 | SE 6 | SE 6 | SE 6 | SE 6 | SE 6 |
843 | 1052 | — | 31 | 110 | 261 | 287 | 307 | 347 | — | 2029 | 178 | 150 | 163 | 266 | 209 | 163 | 206 | 229 | |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 13 | 0 | 0 | 13 | 32 | 176 | 67 | 186 | 465 | 36 | 48 | 48 | 40 | 203 | 411 | 40 | 162 | 153 | 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.










