Knights Surf Break

Lat Long: 35.54° S 138.68° E

Knights Surf Forecast and Surf Report

Issued: 8 am 06 Sep 2026 (local time)

Forecast update in  hr  min

Today's Knights sea temperature is
14.5°C
0.2° 

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


Knights surf forecast from 6 Sep 2026:

  • Best quality surf: Wednesday 9 Sep, 9PM (local time) - 15ft (4.5m), 17s period, SSW swell with cross-onshore winds.
  • Most powerful swell: Wednesday 9 Sep, 6PM (local time) - 15ft (4.5m), 17s period, SSW swell with 10,834 kJ wave energy.
  • Next surfable swell (1★+): Tuesday 8 Sep, 3AM (local time) - 4.5ft (1.4m), 18s period with SSW swell.

Best Forecast Surf Conditions for Knights this week:

The surf forecast for Knights over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Tuesday (Sep 08) at 3AM. The primary swell is predicted to be 1.4m and 18s period with a secondary swell of 1.6m and 13s. The wind is predicted to be glassy as the swell arrives.

The most powerful waves expected at Knights in the next 16 days are 4.5m 17s and forecast to arrive on Wednesday (Sep 09) at 6PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.6m 4s period and expected on Saturday (Sep 12) at 12PM.

Wave TypeTime (ACST) & Date Wave Height & Period
Next good surf (1 star+) 3AM (Tue 8th Sep)4.5ft (1.4m) 18s
Best Surf 9PM (Wed 9th Sep)15ft (4.5m) 17s
Most Powerful 6PM (Wed 9th Sep)15ft (4.5m) 17s

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


The Lowdown

Ah, g’day crew, Rusty here. Let’s have a proper look at what Knights (beach and reef) has got cooking for us over the next couple of weeks. The water is sitting at a pretty average 58°F, no real drama there, about what you’d expect for this time of year.

We’re starting off with a bit of a slow burn, honestly. The first couple of days into the forecast are a write-off for a decent session. Sunday the 6th is a write-off: onshore winds, lumpy, and the swell’s on the way up but messy. Monday the 7th is even worse, with strong onshore wind and weak, chopped-up waves. Just don’t bother.

But then, things take a proper turn. Tuesday the 8th morning is our first real standout. The wind goes glassy, dead calm, and we’ve got a solid 7ft swell from the SSW with a proper 17-second period – that’s long-period groundswell, meaning heaps of energy and beautiful shape on the reef/point. The combined energy is a beefy 3758 (moderate to strong). This is an advanced wave, over 5ft, so it’s not for the grommets, but for anyone who knows what they’re doing, it’s going to be world-class clean. The afternoon goes to crap with onshore wind, so get it while it’s glassy.

The middle of the week turns nasty. Wednesday the 9th is a full-on mess with 30 km/h cross-onshore winds and lumpy, oversized swell (13ft in the afternoon). That’s more of a kite-surfing day than a paddle session. Thursday the 10th has a massive 12ft swell but with cross-onshore wind and it’s just too big and messy for this spot – a real shame.

Now, a true hidden gem pops up for the end of the week. Friday the 11th and Saturday the 12th mornings bring a fantastic window. We get clean, cross-offshore winds (light breeze from the east and then offshore from the NNE), and a solid 8ft to 6ft SSW swell with a period of 14-15 seconds. The energy is moderate to strong (2197 and 1346), and the water will be clean as a whistle. The Saturday morning in particular has true offshore wind – that’s the stuff dreams are made of. Crowds are likely here often, so you’ll want to be an early bird.

The following week starts to get messy again. Sunday the 13th has cleaner but smaller surf, and then Monday the 14th is blown out by strong westerly winds. Tuesday the 15th morning offers another huge, glassy moment – 12ft from the SSW with a 16-second period and dead calm winds. The energy is massive (5587), but for the same reason as before, this is a serious, serious wave. It’s predicted to be too big for this break unless you’re an absolute expert. It’s a high-risk, high-reward window.

We get a bit of a lull mid-week, but then Thursday the 17th afternoon is another solid call – 7ft from the SSW, 16-second period, and a moderate offshore wind from the NNE. The combined energy is strong (2355) and it will be clean. For experienced surfers who can handle a bit of wind, this is a goer.

The final weekend (20th and 21st September) sees the swell drop and get a bit mixed with cross-shore winds, but then we finish on a high note. Monday the 21st afternoon is glassy again with a 8ft SSW swell, though the period drops to just 8 seconds – that’s short-period wind swell, so the shape won’t be as good as the groundswells earlier, but it’ll be clean and fun for those who can handle the size.

Overall, the best of the best is Tuesday the 8th morning for pure glassy perfection, and Friday the 11th/Saturday the 12th mornings for clean, powerful, surfable waves for the experienced crew. The rest of the period is a mixed bag of too-big washouts and blown-out days. Don’t sleep on that Tuesday morning.

Rusty.

Short Range Forecast

Mostly dry. Very mild (max 14°C on Sun morning, min 8°C on Mon night). Winds increasing (calm on Tue morning, fresh winds from the S by Tue night).

Days 4-6 Weather Summary

Mostly dry. Very mild (max 16°C on Fri afternoon, min 9°C on Thu night). Wind will be generally light.

Sunday
6
Monday
7
Tuesday
8
Wednesday
9
Thursday
10
Friday
11
Saturday
12
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
3
2
1
1
2
3
5
1
0
0
0
!
!
2
4
4
4
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)
2.5
SSW
14
2.2
SSW
13
1.8
SSW
13
1.6
SSW
13
1.3
SSW
13
1.2
SSW
19
2.1
SSW
17
2.1
SSW
17
2.2
SSW
16
1.9
SSW
20
4
SSW
18
4
SSW
17
3.5
SSW
16
3
SSW
16
2.5
SSW
15
2.3
SSW
14
2.2
SSW
14
2.2
SSW
16
1.7
SSW
15
1.4
SSW
14
0.9
SSW
17
Wave Graph
Metric surfscale
Energy kJ
2334
1597
1100
787
624
983
2737
2551
2479
2659
10253
9894
6473
4821
3135
2197
1997
2599
1346
834
516
Wind (km/h)
10
SW
10
SSW
15
SW
15
S
15
SSE
5
ESE
0
WNW
20
SSW
30
S
30
SSE
30
SSE
15
SSE
15
S
15
SSE
10
ESE
10
E
10
E
10
NNE
10
NNE
10
NW
10
N
Wind State
cross-on
on
on
on
cross-on
cross
glassy
on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross
cross-off
cross-off
off
off
cross-off
cross-off
High Tide
11:19AM1.12m
11:43AM1.19m
12:08PM1.21m
00:51AM0.61m
12:30PM1.19m
00:40AM0.68m
12:49PM1.13m
00:46AM0.77m
1:06PM1.06m
1:02AM0.88m
1:20PM1.00m
1:23AM0.98m
Low Tide
8:30PM0.33m
8:36PM0.36m
8:36PM0.41m
4:25AM0.53m
8:21PM0.46m
5:29AM0.43m
7:50PM0.48m
6:11AM0.36m
7:22PM0.45m
6:46AM0.33m
7:10PM0.40m
part cloud
part cloud
part cloud
clear
clear
clear
part cloud
cloud
part cloud
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
clear
part cloud
part cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:28
6:26
6:26
6:24
6:22
6:22
6:20
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
5:59
5:59
6:00
6:00
6:01
6:01
6:02
 mm
Temp °C
14
14
13
14
13
10
13
11
12
11
11
10
12
12
11
14
16
14
21
20
19
Feels °C
12
11
12
11
10
8
11
7
6
4
5
6
8
8
9
11
14
12
18
18
16
  • Map Icons:
  • Break
  • 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 Knights Surf forecast

The above surf forecast table for Knights provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Knights can be found by selecting the local surf guide option on the grey menu. Our Knights 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 (Knights) 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 Knights 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.

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