
Surf Forecasts:
Boneyards surf forecast from 11 Sep 2026:
- Best quality surf: Sunday 13 Sep, 11AM (local time) - 7ft (2.1m), 14s period, SW swell with offshore winds.
- Most powerful swell: Tuesday 15 Sep, 11PM (local time) - 13ft (4.0m), 15s period, WSW swell with 6,019 kJ wave energy.
- Next surfable swell (1★+): Sunday 13 Sep, 11AM (local time) - 7ft (2.1m), 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 11AM. The primary swell is predicted to be 2.1m 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 4.0m 15s and forecast to arrive on Tuesday (Sep 15) at 11PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 3.0m 7s period and expected on Saturday (Sep 12) at 2AM.
| Wave Type | Time (SAST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 11AM (Sun 13th Sep) | 7ft (2.1m) 14s |
| Best Surf | 11AM (Sun 13th Sep) | 7ft (2.1m) 14s |
| Most Powerful | 11PM (Tue 15th Sep) | 13ft (4.0m) 15s |
Table - best surf conditions forecast for Boneyards over the next 16 days.
The Lowdown
Alright, Rusty here again, same story just in feet and miles per hour.
We’re looking at a 16-day window for Boneyards, but the first day is a total skip. Saturday the 12th is howling offshore at 28-31 mph, with swell over 6ft. It’s clean, sure, but you’ll never get out. Not even worth a look.
The first real green light is Sunday morning the 13th. A solid 7ft SW groundswell with a 14-second period (combined energy of 1665) and clean, moderate offshore wind from the ESE at 12 mph. That’s prime for this reef. It’ll be a little inconsistent, but the waves will have real shape and power. The water temp is about normal for this time of year. Perfect for experienced surfers. Sunday afternoon stays clean at 6ft, but the early session is the winner.
Monday the 14th and Tuesday the 15th are blown-out and lumpy with strong cross-onshore winds – skip those days. Wednesday the 16th brings size back up to about 8ft from the WSW with strong cross-offshore winds. It’s clean but only for the experts, with a massive 3537 combined energy.
The absolute standout, the one you put in your calendar, is the morning of Sunday the 27th of September. Glassy conditions. A light ESE breeze, a 6ft W swell with an 11-second period, and the whole place looks like a mirror. Combined energy of 1183. That’s as good as it’s written. It’s a long way out, so it’s a hopeful call, but damn it looks good.
Later in the second week, Friday the 18th afternoon is also clean with a 8ft SW swell and a gentle breeze (combined energy 1998). Solid.
The rest is a mix: Wednesday the 16th and Thursday the 17th are messy, and the 21st drops to small weak waves. The 23rd shows a 10-13ft SW groundswell but with onshore or cross-winds – that’s kite territory. The 24th is a rain-soaked, blown-out disaster.
So: the glassy morning on the 27th of September is your best bet. Sunday the 13th morning is the early highlight.
Rusty.
Short Range ForecastLight rain (total 6mm), mostly falling on Sun night. Very mild (max 18°C on Sun afternoon, min 14°C on Fri night). Winds decreasing (strong winds from the SE on Sat afternoon, light winds from the N by Sun night). | Days 5-7 Weather SummaryHeavy rain (total 26mm), heaviest during Tue night. Very mild (max 16°C on Tue afternoon, min 12°C on Tue night). Winds increasing (light winds from the WSW on Tue night, strong winds from the SSE by Thu afternoon). | ||||||||||||||||||
Saturday 12 | Sunday 13 | Monday 14 | Tuesday 15 | Wednesday 16 | Thursday 17 | ||||||||||||||
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 11 | SW 15 | SW 16 | SW 15 | SW 14 | SW 14 | SW 13 | SW 12 | NW 7 | NW 7 | SW 15 | SW 16 | WSW 14 | WSW 14 | SSW 13 | SW 12 | SW 12 | SW 12 | SW 12 |
Wave Graph | |||||||||||||||||||
366 | 2038 | 3525 | 2633 | 1665 | 1208 | 732 | 473 | 579 | 340 | 535 | 1852 | 5297 | 2826 | 1906 | 1025 | 869 | 923 | 1427 | |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | off | off | off | off | off | off | cross-on | cross-on | cross-on | cross-on | cross-on | cross-on | cross | cross-off | cross-off | off | cross-off | cross-off | off |
High Tide | 3:44AM1.55m | 3:58PM1.68m | 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 | |||||||
Low Tide | 9:42PM-0.01m | 9:48AM0.03m | 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 | ||||||
— | 6:50 | — | — | 6:48 | — | — | 6:48 | — | — | 6:47 | — | — | 6:45 | — | — | 6:43 | — | — | |
6:35 | — | 6:35 | — | — | 6:36 | — | — | 6:37 | — | — | 6:37 | — | — | 6:37 | — | — | 6:38 | — | |
mm | — | — | — | — | — | — | 4 | 2 | — | 1 | 1 | — | 23 | 1 | — | — | — | — | — |
Temp °C | 15 | 16 | 15 | 16 | 17 | 18 | 17 | 17 | 16 | 15 | 15 | 16 | 15 | 13 | 14 | 14 | 13 | 14 | 14 |
Feels °C | 8 | 8 | 7 | 11 | 14 | 15 | 15 | 10 | 9 | 10 | 9 | 9 | 10 | 6 | 7 | 6 | 6 | 5 | 5 |
Swell 1 Height (m) Direction Period (s) | WSW 11 | SW 15 | SW 16 | SW 15 | SW 14 | SW 14 | SW 13 | SW 12 | SW 12 | SW 11 | SW 15 | SW 16 | WSW 14 | WSW 14 | WSW 13 | SW 12 | SW 12 | SW 12 | SW 12 |
366 | 2038 | 3525 | 2633 | 1665 | 1208 | 732 | 473 | 349 | 241 | 535 | 1852 | 5297 | 2826 | 1179 | 1025 | 869 | 923 | 1427 | |
Swell 2 Height (m) Direction Period (s) | SW 14 | — | — | — | — | — | SE 9 | SE 10 | SE 9 | SSW 18 | SW 18 | WSW 8 | SW 15 | SW 13 | WSW 13 | WSW 13 | W 12 | W 12 | W 11 |
289 | — | — | — | — | — | 235 | 73 | 31 | 30 | 266 | 238 | 565 | 711 | 257 | 659 | 353 | 224 | 63 | |
Swell 3 Height (m) Direction Period (s) | SSW 10 | — | — | — | — | — | — | ESE 13 | SE 13 | ESE 9 | WSW 7 | — | NNW 6 | ESE 11 | E 11 | E 11 | E 12 | — | — |
40 | — | — | — | — | — | — | 17 | 7 | 8 | 29 | — | 43 | 12 | 10 | 10 | 3 | — | — | |
Wind waves Height (m) Direction Period (s) | SE 7 | SE 7 | SE 8 | SE 8 | SE 8 | SE 8 | NNW 4 | NNW 6 | NW 7 | NW 7 | NW 6 | NW 7 | — | — | SSW 13 | SE 5 | SE 5 | SE 5 | SE 6 |
808 | 643 | 973 | 909 | 545 | 736 | 20 | 249 | 579 | 340 | 348 | 415 | — | — | 1906 | 76 | 85 | 154 | 244 | |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 25 | 25 | 349 | 13 | 0 | 0 | 23 | 176 | 410 | 67 | 235 | 235 | 1 | 48 | 48 | 25 | 26 | 411 | 25 |
Best forecast wave conditions in Cape Town | |||||||||||||||||||
Best forecast wave conditions in South Africa | |||||||||||||||||||
Header Global | |||||||||||||||||||
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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.










