Boneyards Surf Break

Lat Long: 34.13° S 18.32° E

Boneyards Surf Forecast and Surf Report

Issued: 7 pm 15 Sep 2026 (local time)

Forecast update in  hr  min

Today's Boneyards sea temperature is
14.1°C
1.6° 

Boneyards surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.


Boneyards surf forecast from 15 Sep 2026:

  • Best quality surf: Monday 21 Sep, 8AM (local time) - 4.5ft (1.4m), 12s period, SW swell with offshore winds.
  • Most powerful swell: Wednesday 16 Sep, 2AM (local time) - 10ft (3.0m), 14s period, SW swell with 3,716 kJ wave energy.
  • Next surfable swell (1★+): Monday 21 Sep, 8AM (local time) - 4.5ft (1.4m), 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 (Sep 21) at 8AM. The primary swell is predicted to be 1.4m and 12s 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 14s and forecast to arrive on Wednesday (Sep 16) at 2AM. 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 7s period and expected on Saturday (Sep 19) at 5PM.

Wave TypeTime (SAST) & Date Wave Height & Period
Next good surf (1 star+) 8AM (Mon 21st Sep)4.5ft (1.4m) 12s
Best Surf 8AM (Mon 21st Sep)4.5ft (1.4m) 12s
Most Powerful 2AM (Wed 16th Sep)10ft (3.0m) 14s

Table - best surf conditions forecast for Boneyards over the next 16 days.


The Lowdown

Alright, let’s get stuck into it. The surf ahead is a bit of a mixed bag, to be honest. For the next few days, there’s some solid swell running, but the wind is going to be the main player, and not in a good way for the most part. We’re looking at a lot of strong breezes and even near-gale conditions, so while there’s size, the quality is going to be all over the shop. The standout window is looking like the Monday the 21st, a real gem compared to the rest of the run, and then again around the 28th, when things ease off but clean right up.

Right now, over the 16th and into the 17th, we’ve got a decent sized SW swell pushing in, around the 6.9ft to 9.8ft mark, but the wind is fresh to strong out of the SE. It’s mostly cross-off, which keeps it clean, but the energy is massive – we’re talking 4042 kJ/m² of combined energy on Wednesday morning, dropping to 2232 kJ/m² by the afternoon. That’s a lot of water moving. This is proper, powerful stuff, but it’s going to be challenging. The period is a healthy 13 seconds, so there’s some good push in it. It’s not a day for the faint-hearted; that size and power, it’s more for the experienced crew. Thursday the 17th sees the wind ramping up to near gale in the afternoon with a strong offshore component, which sounds good, but it’s going to be a battle to get out. The wave state is clean, but paddling into these will be a serious workout.

Through Friday the 18th and into the weekend, the swell eases a touch, still in the 4.6ft to 6.6ft range, but those strong 25-30 mph winds persist. The energy drops to around 771-1401 kJ/m², which is still moderate, but the conditions are being held back by the wind. This is where it gets frustrating – there’s surf, but it’s not giving much up. The period stays around 11-14 seconds, keeping it decent, but you’re working hard for every wave. Saturday is much the same story, with the added issue of near-gale cross-off winds and the surfline being so blown out. It’s clean in the sense of not being messy, but it’s just too windy to be enjoyable for most.

Now, here’s the good bit. Monday the 21st of September, that’s your window. The wind drops right out to a gentle offshore breeze, maybe 9 mph, and the swell is still a workable 4.6ft from the SW. The energy is down to a moderate 587 kJ/m², but with that light wind and a solid 12-second period, it’s going to be clean, lined-up, and way more user-friendly. This is the clear standout of the whole forecast. The afternoon still holds, with a light cross-off, but that morning is the pick.

After that, things taper off. Tuesday the 22nd is small, around 3.6ft, with a light cross-onshore that puts a few ripples on it. Not great. The rest of that week stays small, with a pulse of energy around the 24th – that sees the swell jump back up to 8.2ft from the SSW on Thursday afternoon, and the wind goes offshore with some light rain. That’s a promising one, but it’s a few days out, so we’ll see how it shapes up. It has moderate energy at 2260 kJ/m², so it’s got some punch.

Then we get to the 28th of September, another little clean window. The swell is down to about 3.3ft and the wind is light offshore again. It’s not big, but it’ll be clean and fun on the longer boards. The energy is weak, around 324 kJ/m², so it’s a cruisy one for sure. After that, it drops right off. The last couple of days of the month and into October, the swell just fades away. We’re talking 1.6ft to 2.6ft, with the wind swinging onshore or cross-shore, making it choppy and lumpy. There’s a brief glassy moment on the 1st of October with a long 16-second period, but it’s tiny. Not worth getting excited about.

So, there you have it. The best surf is Monday the 21st, hands down – clean, offshore, a bit of size, and moderate energy. That’s the one to circle. There’s also a shout-out to Thursday the 24th with that bigger SSW pulse, but it’s a bit further out and the conditions are still a question mark. For most of this run, the wind is the limiting factor. It’s a lot of strong breezes and howling conditions, so be picky with your sessions and don’t get too worked up about the small stuff at the end.

This is Boneyards we’re talking about, a solid reef break that’s exposed and handles a lot of swell, but with that strong SE wind, it’s going to be proper. For the beginners out there, that 9.8ft plus swell is way too much, but even the 6.6ft

Short Range Forecast

Heavy rain (total 25mm), heaviest during Tue night. Very mild (max 16°C on Fri afternoon, min 12°C on Tue night). Winds increasing (moderate winds from the S on Tue night, near gales from the SSE by Thu afternoon).

Days 5-7 Weather Summary

Mostly dry. Warm (max 22°C on Mon afternoon, min 14°C on Fri night). Winds decreasing (near gales from the SE on Sat afternoon, light winds from the ESE by Mon morning).

Wednesday
16
Thursday
17
Friday
18
Saturday
19
Sunday
20
Monday
21
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
4
3
1
1
2
0
1
1
0
0
0
0
2
2
1
1
3
1
2
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
3
SW
14
3
SW
13
2.1
WSW
13
2.1
SW
13
2.2
SW
12
2
SW
12
1.8
SW
11
1.8
SW
11
1.7
SW
13
1.7
SW
12
1.4
SW
12
1.6
SW
14
2.3
SW
14
2
WSW
13
1.8
WSW
13
1.6
WSW
12
1.4
SW
12
1.3
WSW
12
1.1
SW
11
Wave Graph
Metric surfscale
Energy kJ
3716
2641
1465
1468
1347
1092
794
756
946
860
505
965
1977
1401
1083
759
587
456
293
Wind (km/h)
20
S
35
SE
45
SE
45
SE
45
SE
50
SSE
40
SE
40
SE
50
SE
45
SE
45
SE
50
SE
40
SE
40
SE
45
SE
35
SE
15
ESE
25
SE
10
ENE
Wind State
cross-off
cross-off
cross-off
off
off
cross-off
off
off
off
off
cross-off
cross-off
off
off
cross-off
cross-off
off
cross-off
cross-off
High Tide
5:49AM1.24m
5:59PM1.27m
6:22AM1.13m
6:35PM1.13m
7:07AM1.01m
7:27PM1.00m
8:44AM0.91m
9:34PM0.93m
11:22AM0.95m
11:39PM0.99m
12:27PM1.07m
00:34AM1.10m
Low Tide
11:44PM0.28m
11:47AM0.38m
00:14AM0.41m
12:19PM0.50m
00:52AM0.53m
1:01PM0.63m
2:01AM0.64m
2:52PM0.73m
4:47AM0.65m
5:46PM0.68m
6:12AM0.56m
6:42PM0.56m
heavy rain
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:45
6:43
6:41
6:41
6:39
6:37
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:37
6:37
6:38
6:38
6:39
6:40
6:40
 mm
25
Temp °C
14
14
14
13
14
15
14
14
16
14
16
17
16
16
16
16
19
22
21
Feels °C
8
6
5
4
5
5
5
6
6
5
8
8
8
9
9
9
17
19
18
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  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
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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.

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