Knights Surf Break

Lat Long: 35.54° S 138.68° E

Knights Surf Forecast and Surf Report

Issued: 8 am 03 Sep 2026 (local time)

Forecast update in  hr  min

Today's Knights sea temperature is
14.9°C
0.7° 

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


Knights surf forecast from 3 Sep 2026:

  • Best quality surf: Thursday 3 Sep, 3PM (local time) - 11ft (3.5m), 14s period, SSW swell with cross-onshore winds.
  • Most powerful swell: Wednesday 9 Sep, 6PM (local time) - 11ft (3.5m), 19s period, SSW swell with 8,934 kJ wave energy.
  • Next surfable swell (1★+): Thursday 3 Sep, 3PM (local time) - 11ft (3.5m), 14s 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 Thursday (Sep 03) at 3PM. The primary swell is predicted to be 3.5m and 14s period. The wind is predicted to be cross-onshore as the swell arrives.

The most powerful waves expected at Knights in the next 16 days are 3.5m 19s 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 1.1m 4s period and expected on Saturday (Sep 05) at 3AM.

Wave TypeTime (ACST) & Date Wave Height & Period
Next good surf (1 star+) 3PM (Thu 3rd Sep)11ft (3.5m) 14s
Best Surf 3PM (Thu 3rd Sep)11ft (3.5m) 14s
Most Powerful 6PM (Wed 9th Sep)11ft (3.5m) 19s

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


The Lowdown

G’day, Rusty here. We’ve got a mixed bag coming up at Knights. This spot is a fairly consistent beach and reef setup, exposed to the south-southeast, so it picks up a lot of what’s thrown at it. The water’s sitting at 59°, which is pretty average for this time of year, so nothing wild there.

We’re in for a bit of a wait, though. There’s no real surf to get excited about right now. Thursday the 3rd has some size, but with a cross-onshore breeze and the swell predicted too big for this break, it’s a write-off. The real action doesn’t start firing until Friday the 4th.

Alright, let’s get into it. Friday the 4th morning is where it all kicks off. We’ve got a solid 12 ft SSW groundswell (combined energy 5368) rolling in with a 16-second period, and crucially, the wind is NNE at 6 mph — a light offshore. That’ll keep the surface glassy clean. It’s a big one though, over 8 ft, so this is strictly for the experienced crew. The afternoon stays clean too, with a cross-offshore breeze and the swell dropping a touch to 10 ft. That’s an excellent one, but still only for those who know what they’re doing.

Now, the standout session of this whole run has to be Sunday the 6th morning. We’ve got a 8 ft SSW swell (combined energy 2313) with a 13-second period and glassy conditions — WNW wind at a mere 3 mph, glassy. That’s as good as it gets. Clean, lined-up waves for the experienced surfer. It’s a cracker.

Monday the 7th drops right off with messy, cross-onshore chop, so we’ll give that a miss.

Tuesday the 8th morning is another one to circle. The swell is 7 ft from the SSW (combined energy 4127), period a very long 17 seconds, and we’ve got a light cross-offshore breeze from the east. Clean waves again, but with that long period, expect it to be a bit straighter at a beach break like this. Still, excellent conditions for the experienced lot.

Wednesday the 9th and Thursday the 10th keep the size up, but the wind turns cross-shore, so it gets a little bumpy. Still, the energy is strong (over 5000 on the 9th afternoon and 10th morning), so there’ll be power in the water.

Then we get a nice little run from Friday the 11th through Saturday the 12th. Consistent 6 ft to 5 ft SSW groundswell (15-second period) with moderate offshore or cross-offshore winds. Clean, more manageable size, still good for experienced surfers.

After that, the swell drops off through the 13th, and then we get another big pulse on Monday the 14th and Tuesday the 15th, but the wind is messy on the 14th — straight onshore. Tuesday the 15th morning is a gem though: 8 ft SSW groundswell (combined energy 3513) with a very long 18-second period and a light cross-offshore breeze. Clean again, but again, that long period might make it a bit straight at the beach.

The last few days, from the 16th to the 18th, are mostly messy with strong winds and big, choppy conditions. There’s a massive 13 ft pulse on Thursday the 17th, but it’s accompanied by rain and a strong cross-onshore wind — that’s a hard pass.

So, if you’re an experienced surfer, your best bets are Sunday the 6th morning for that glassy perfection, and Friday the 4th morning for the biggest, cleanest swell. The second week is more of a pick-and-choose game — Friday the 11th and Tuesday the 15th morning are worth a look, but less certain.

Rusty.

Short Range Forecast

Light rain (total 4mm), mostly falling on Fri morning. Very mild (max 19°C on Fri night, min 10°C on Thu night). Winds decreasing (strong winds from the WNW on Fri night, calm by Sat night).

Days 4-6 Weather Summary

Mostly dry. Very mild (max 15°C on Sun morning, min 6°C on Mon night). Wind will be generally light.

Thursday
3
Friday
4
Saturday
5
Sunday
6
Monday
7
Tuesday
8
Wednesday
9
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
0
!
!
!
5
2
0
0
3
4
3
2
0
0
3
5
2
3
4
5
!
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
3.5
SSW
14
3.5
SSW
15
3.5
SSW
16
3
SSW
16
2.5
SSW
15
3
SW
10
3.5
SW
12
3
SSW
13
2.5
SSW
13
2.3
SSW
12
1.8
SSW
13
1.3
SSW
13
1.8
SSW
8
1.9
SSW
12
2.2
SSW
17
2.3
SSW
17
2.2
SSW
16
2.4
SSW
16
2.3
SSW
20
3.5
SSW
18
Wave Graph
Metric surfscale
Energy kJ
3563
4399
5723
5368
4285
2945
1431
3477
3264
2313
1571
1117
512
394
1000
2968
2883
2354
2859
4034
7326
Wind (km/h)
20
WSW
15
SW
5
NNW
10
NNE
15
N
30
NW
35
W
25
WSW
15
W
5
WNW
10
SSW
15
SW
20
S
25
SSE
15
ESE
10
E
15
SSE
15
SE
20
ESE
20
SE
15
E
Wind State
cross-on
cross-on
cross-off
off
cross-off
cross-off
cross
cross-on
cross-on
glassy
on
cross-on
cross-on
cross-on
cross
cross-off
cross-on
cross
cross
cross
cross-off
High Tide
2:17PM0.85m
4:04AM1.13m
12:35PM0.87m
4:47AM1.08m
5:54AM1.00m
11:43AM1.19m
12:08PM1.21m
00:51AM0.61m
12:30PM1.19m
00:40AM0.68m
Low Tide
8:08PM0.32m
9:13AM0.85m
8:14PM0.31m
8:22AM0.97m
8:22PM0.31m
7:17AM0.99m
8:30PM0.33m
8:36PM0.36m
8:36PM0.41m
4:25AM0.53m
8:21PM0.46m
part cloud
clear
part cloud
light rain
cloud
rain showers
clear
clear
part cloud
part cloud
clear
part cloud
clear
clear
clear
part cloud
clear
part cloud
cloud
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:33
6:31
6:30
6:28
6:26
6:26
6:24
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
5:55
5:57
5:58
5:59
5:59
6:00
6:00
 mm
2
2
Temp °C
15
14
11
14
18
19
15
15
11
15
14
11
13
12
10
10
10
11
11
13
13
Feels °C
11
10
9
12
16
14
8
9
7
13
11
8
8
7
6
6
6
8
7
9
9
  • 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 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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