Surf Forecasts:
Boneyards surf forecast from 31 Aug 2026:
- Best quality surf: Tuesday 1 Sep, 11AM (local time) - 10ft (3.0m), 13s period, SW swell with glassy winds.
- Most powerful swell: Tuesday 1 Sep, 11PM (local time) - 11ft (3.5m), 14s period, SW swell with 4,356 kJ wave energy.
- Next surfable swell (1★+): Monday 31 Aug, 8PM (local time) - 6ft (1.8m), 12s 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 Monday (Aug 31) at 8PM. The primary swell is predicted to be 1.8m and 12s period with a secondary swell of 0.8m and 11s. 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 3.5m 14s and forecast to arrive on Tuesday (Sep 01) 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 3.5m 9s period and expected on Thursday (Sep 03) at 2PM.
| Wave Type | Time (SAST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 8PM (Mon 31st Aug) | 6ft (1.8m) 12s |
| Best Surf | 11AM (Tue 1st Sep) | 10ft (3.0m) 13s |
| Most Powerful | 11PM (Tue 1st Sep) | 11ft (3.5m) 14s |
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’s on the cards for Boneyards.
The short story: We’ve got a solid stretch of solid, powerful groundswell kicking off in the first week of September, but you’ll need to pick your moments because the wind is going to be a real character. After that, it tapers off into smaller, cleaner but less exciting stuff. The real standout is Tuesday morning, the 1st of September, and Wednesday morning, the 2nd of September.
The first recommendation isn’t until Monday afternoon, the 31st of August. It’s a bit of a warm-up, not the main event. You’ve got a 7ft SW swell with 11-second period, but it’s cross-shore with a gentle breeze and slight chop. The combined energy is moderate (1008). It’s surfable, but messy. Water temp is 58°, which is a bit colder than normal for this time of year – about 3°F off, so it feels a touch chilly.
Now, Tuesday morning, the 1st of September is where it’s at. This is the pick of the bunch. The swell jumps to a solid 10ft from the SW, with a lovely long 13-second period. That’s proper groundswell, meaning shapey, powerful lines. The combined energy is massive (3112). And the wind? Glassy. Dead calm. It’ll be clean as a whistle. This is for experienced surfers only – at 10ft, it’s too big for the learners. The fact that Boneyards is an inconsistent reef break that’s exposed to the W, and this swell is coming from the SW, it’s going to line up nicely. Just be aware, it can get crowded at times.
Tuesday afternoon sees the swell bump up to 12ft SW, still 13 seconds, energy even higher at 4063, but the wind swings cross-onshore and it gets choppy. That’s a pass for me. Wednesday morning, the 2nd of September, is another top contender. 10ft SW, 13-second period, plenty of energy (3471), and this time we get clean, cross-offshore winds from the SSE. It’s a beauty for the experienced crew. Wednesday afternoon holds similar size and clean conditions, still worth a paddle.
Thursday the 3rd of September is a complete write-off. The wind goes mental – 28 mph cross-off in the morning, 31 mph in the afternoon with rain. The swell is a messy 13ft from the S, but it’s not surfable. Forget it.
From Friday the 4th through Saturday the 6th, the wind is howling offshore – gale force at times – so it’s clean but nearly impossible to get out. The swell drops right off (2ft to 4ft) with very low energy. Not worth the battle.
Sunday the 7th of September sees a little pulse of 3ft SSW swell with 12 seconds and light offshore winds. Combined energy is low (355). It’s clean and rideable for a small-wave board, but nothing to get excited about. That pattern of small, clean, but weak surf continues through the middle of the month.
There’s a bit of a lift again on Thursday the 10th of September, with 6ft WSW swell, 12 seconds, and moderate cross-off winds. Energy comes back to moderate (830), but the quality is only marginal. Not a standout.
Later, Sunday the 13th of September offers glassy conditions again, but the swell is only 4ft from the SSW with 12 seconds. Good conditions, small but fun for a log. After that, the window closes with onshore winds and onshore swell into the second week.
So to wrap it up: your two absolute standouts are Tuesday morning, the 1st of September and Wednesday morning, the 2nd of September. Big SW groundswell, long periods, and clean winds. Experts only. After that, it’s scrappy or small until the weekend of the 13th.
Rusty.
Short Range ForecastLight rain (total 2mm), mostly falling on Thu morning. Very mild (max 16°C on Wed afternoon, min 12°C on Mon night). Winds increasing (calm on Tue morning, strong winds from the SSE by Thu morning). | Days 5-7 Weather SummaryLight rain (total 3mm), mostly falling on Thu afternoon. Very mild (max 19°C on Sat afternoon, min 13°C on Fri night). Winds decreasing (gales from the SE on Fri afternoon, fresh winds from the ESE by Sat morning). | |||||||||||||||||||
Mon 31 | Tuesday 1 | Wednesday 2 | Thursday 3 | Friday 4 | Saturday 5 | Sunday 6 | ||||||||||||||
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) | SW 11 | SW 11 | SW 13 | SW 13 | SW 14 | SW 13 | SW 13 | WSW 13 | S 9 | WSW 12 | WSW 12 | WSW 11 | WSW 10 | WSW 10 | SSW 10 | SW 19 | SW 17 | SW 15 | WSW 15 | SW 14 |
Wave Graph | ||||||||||||||||||||
1008 | 1562 | 3112 | 4063 | 4247 | 3471 | 2795 | 1700 | 2934 | 589 | 392 | 242 | 173 | 92 | 111 | 181 | 1036 | 757 | 584 | 404 | |
Wind (km/h) | ||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross-off | glassy | cross-on | cross-off | cross-off | cross-off | cross | cross-off | cross-off | off | off | off | off | off | off | off | off | off | off |
High Tide | 5:03PM1.59m | 5:22AM1.41m | 5:38PM1.52m | 6:01AM1.31m | 6:18PM1.41m | 6:48AM1.20m | 7:10PM1.28m | 7:55AM1.08m | 8:30PM1.15m | 9:46AM1.03m | 10:28PM1.12m | 11:38AM1.11m | 00:04AM1.20m | |||||||
Low Tide | 11:18PM0.11m | 11:21AM0.18m | 11:55PM0.19m | 11:59AM0.28m | 00:39AM0.30m | 12:46PM0.40m | 1:38AM0.42m | 1:54PM0.53m | 3:14AM0.51m | 3:57PM0.59m | 5:14AM0.48m | 5:54PM0.50m | ||||||||
— | — | 7:05 | — | — | 7:03 | — | — | 7:03 | — | — | 7:01 | — | — | 7:00 | — | — | 6:58 | — | — | |
6:27 | — | — | 6:28 | — | — | 6:28 | — | — | 6:29 | — | — | 6:30 | — | — | 6:30 | — | — | 6:30 | — | |
mm | — | — | — | — | — | — | — | — | 2 | 3 | — | — | — | — | — | — | — | — | — | — |
Temp °C | 13 | 13 | 13 | 14 | 15 | 15 | 16 | 15 | 14 | 15 | 15 | 14 | 16 | 14 | 15 | 19 | 16 | 17 | 18 | 16 |
Feels °C | 9 | 11 | 12 | 11 | 14 | 14 | 13 | 14 | 13 | 5 | 4 | 4 | 5 | 3 | 9 | 12 | 9 | 11 | 12 | 11 |
Swell 1 Height (m) Direction Period (s) | SW 11 | SW 11 | SW 13 | SW 13 | SW 14 | SW 13 | SW 13 | WSW 13 | WSW 12 | WSW 12 | WSW 12 | SSW 9 | WSW 10 | WSW 10 | SSW 10 | WSW 10 | SW 17 | SW 15 | WSW 15 | SW 14 |
1008 | 1562 | 3112 | 4063 | 4247 | 3471 | 2795 | 1700 | 585 | 589 | 392 | 173 | 173 | 92 | 111 | 57 | 1036 | 757 | 584 | 404 | |
Swell 2 Height (m) Direction Period (s) | SE 10 | — | — | — | — | — | — | S 10 | W 15 | — | — | WSW 11 | — | S 13 | WSW 10 | SW 19 | SSW 9 | SSW 17 | SSW 14 | SW 13 |
4 | — | — | — | — | — | — | 145 | 39 | — | — | 242 | — | 30 | 58 | 96 | 33 | 246 | 133 | 162 | |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | S 14 | — | SSW 11 | — | SW 19 | WSW 10 | — | S 12 | WSW 14 |
— | — | — | — | — | — | — | — | — | — | — | 4 | — | 23 | — | 181 | 37 | — | 3 | 134 | |
Wind waves Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | S 9 | SSE 9 | SSE 9 | SE 8 | SE 8 | SE 8 | SE 7 | SE 8 | SE 7 | SE 8 | SE 8 | SE 9 |
— | — | — | — | — | — | — | — | 2934 | 1553 | 1569 | 1083 | 1205 | 796 | 720 | 1200 | 757 | 664 | 606 | 554 | |
Nearest Offshore or Glassy | ||||||||||||||||||||
Distance (km) | 1 | 0 | 0 | 1 | 0 | 0 | 0 | 1 | 136 | 919 | 203 | 1470 | 3891 | 13 | 6 | 25 | 13 | 13 | 25 | 0 |
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.











