Boneyards Surf Break

Lat Long: 34.13° S 18.32° E

Boneyards Surf Forecast and Surf Report

Issued: 1 pm 13 Sep 2026 (local time)

Forecast update in  hr  min

Today's Boneyards sea temperature is
14.2°C
1.5° 

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


Boneyards surf forecast from 13 Sep 2026:

  • Best quality surf: Saturday 19 Sep, 2AM (local time) - 6ft (1.8m), 13s period, SW swell with offshore winds.
  • Most powerful swell: Wednesday 16 Sep, 2AM (local time) - 10ft (3.0m), 14s period, WSW swell with 3,594 kJ wave energy.
  • Next surfable swell (1★+): Saturday 19 Sep, 2AM (local time) - 6ft (1.8m), 13s 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 Saturday (Sep 19) at 2AM. The primary swell is predicted to be 1.8m and 13s period with a secondary swell of 0.5m and 16s. 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 2.3m 6s period and expected on Friday (Sep 18) at 5PM.

Wave TypeTime (SAST) & Date Wave Height & Period
Next good surf (1 star+) 2AM (Sat 19th Sep)6ft (1.8m) 13s
Best Surf 2AM (Sat 19th Sep)6ft (1.8m) 13s
Most Powerful 2AM (Wed 16th Sep)10ft (3.0m) 14s

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


The Lowdown

G’day, Rusty here. Let’s have a look at what Boneyards has in store for us over the next couple of weeks. It’s a reef break, exposed to the west, and it’s going to be a bit of a mixed bag – some clean windows, some proper windy mess, and a couple of windows that are worth circling on the calendar.

Right off the bat, we’ve got a slow start. Sunday afternoon the 13th has a bit of swell – 1.8m from the southwest – but the wind is cross-onshore out of the NNW at 10 km/h, and there’s light rain. It’s marginal at best, tide-affected. The combined energy is moderate at 1208. Not the sort of thing you’d rush out for.

Monday the 14th is a write-off. Fresh cross-onshore winds at 35 km/h, lumpy, messy – poor conditions all day. Tuesday the 15th is worse: strong breeze at 40 km/h, messy, 2.1m but with a short 6-second period, so it’s all over the shop. Not worth it.

Then things start to shift. Wednesday morning the 16th – the wind swings to the southeast, a cross-off at 35 km/h, and we’ve got 1.9m of southwest swell at 14 seconds. It’s still a bit rough around the edges, but the energy is strong at 2401. Surfable, but not epic yet. Wednesday afternoon is blowy again with 45 km/h.

Thursday the 17th is a standout in the first week. Morning has 2.0m from the southwest, 12-second period, with a strong offshore wind from the southeast at 40 km/h. It’s clean, but that wind is hard to paddle into – you’ll need to be fit. Boneyards (Big Island) is exposed and the optimum swell is from the west, so this is decent, but the strong breeze knocks it down a peg. The energy is solid at 1217.

Friday the 18th is cleaner: fresh offshore from the southeast at 30 km/h, 1.8m from the southwest, 14-second period. Still a bit of push in the wind, but clean lines. Not a standout, but workable.

Now, Saturday the 19th – this is where it gets interesting. Morning is glassy, offshore, no wind to speak of – 5 km/h from the southeast – and we’ve got 1.1m of clean southwest swell at 14 seconds. The water is 14.2°, which is about 1.5° colder than normal for this time of year – a bit nippy, but not crazy. That’s the cleanest window we’ve had, and the energy is moderate at 1031. It’s a fun, clean day for those who don’t mind smaller waves. The afternoon picks up to 1.7m with a gentle cross-off – still clean. This is a good day.

Sunday the 20th has 2.1m from the southwest at 13 seconds, cross-off winds, clean but with a moderate breeze at 20 km/h. Fine, but not glassy. Energy is strong at 1496.

Monday the 21st is a no-go – near gale offshore winds at 50 km/h, impossible to paddle out, despite the size and clean surface. Skip it.

Now let’s jump ahead. Tuesday the 22nd is an absolute gem. Gentle offshore from the ESE at 15 km/h, 1.5m of southwest swell at 12 seconds – clean, glassy-ish, and the energy is moderate at 705. The water is still that slightly colder-than-average mark. This is a proper user-friendly day, and probably the best all-rounder of the run. The afternoon is even cleaner with a gentle cross-off. This is a standout.

Wednesday the 23rd – wind ramps back up to 40 km/h, cross-off, clean surface but strong. The swell drops a bit and goes short-period on the afternoon – poor conditions. Thursday the 24th is back to strong offshore at 40 km/h, 2.3m from the southwest at 14 seconds – big, powerful, but again, hard to paddle into. Energy is strong at 2263. Not for the faint-hearted.

Now, the real highlight: Friday the 25th. Morning is almost glass – 5 km/h offshore from the ESE, 1.8m from the southwest at 13 seconds, clean as a whistle. The guidance says excellent conditions for experienced surfers. Energy is moderate at 1075. This is the one you’ve been waiting for. The afternoon is still clean with a gentle offshore at 15 km/h, 1.7m. This is the best on offer in the whole 16-day window – proper, clean, lined-up reef surf.

Saturday the 26th – the wind turns onshore from the NNW at

Short Range Forecast

Heavy rain (total 33mm), heaviest during Tue night. Very mild (max 18°C on Sun afternoon, min 12°C on Tue night). Winds increasing (calm on Sun afternoon, strong winds from the NNW by Tue afternoon).

Days 5-7 Weather Summary

Mostly dry. Very mild (max 18°C on Fri afternoon, min 13°C on Wed night). Winds decreasing (strong winds from the SE on Thu night, calm by Sat morning).

Sun
13
Monday
14
Tuesday
15
Wednesday
16
Thursday
17
Friday
18
Saturday
19
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
2
0
0
0
0
0
0
3
2
1
2
2
0
1
3
2
4
4
3
3
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
1.8
SW
14
1.4
SW
13
1.3
SW
12
1.1
SW
12
1.9
NW
7
2.1
NW
6
1.6
SW
16
3
WSW
14
1.9
SW
14
1.8
WSW
13
1.7
SW
13
2
SW
12
1.9
SW
11
1.8
SW
11
1.8
SW
14
1.8
SW
13
1.8
SW
13
1.4
SW
12
1.7
SW
13
1.5
SW
13
Wave Graph
Metric surfscale
Energy kJ
1208
663
473
359
394
363
1194
3594
1383
1073
911
1076
882
794
1233
1144
987
514
976
778
Wind (km/h)
10
NNW
25
N
35
N
35
NNW
30
N
40
NNW
40
NNW
30
SSE
35
SE
45
SE
35
SE
40
SE
45
SE
40
SE
30
SE
35
SE
20
ESE
5
SE
15
S
10
SE
Wind State
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-off
cross-off
cross-off
off
off
cross-off
off
off
off
off
glassy
cross-off
cross-off
High Tide
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
8:44AM0.91m
9:34PM0.93m
Low Tide
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
2:52PM0.73m
4:47AM0.65m
light rain
light rain
part cloud
part cloud
rain showers
part cloud
cloud
heavy rain
rain showers
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:48
6:47
6:45
6:43
6:41
6:41
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
6:36
6:37
6:37
6:37
6:38
6:38
6:39
 mm
4
5
1
22
1
Temp °C
18
15
15
16
15
15
15
14
14
15
14
14
15
14
14
18
16
15
17
18
Feels °C
19
13
10
9
9
10
7
7
6
6
5
6
6
5
8
10
9
14
14
15
  • Map Icons:
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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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