Knights Surf Break

Lat Long: 35.54° S 138.68° E

Issued: 8 am 07 Jul 2026 (local time)

Forecast update in  hr  min

Today's Knights sea temperature is
14.7° C

Slightly cooler than normal

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


Knights surf forecast from 7 Jul 2026:

  • Best quality surf: Sunday 12 Jul, 6AM (local time) - 11ft (3.5m), 12s period, SW swell with cross-shore winds.
  • Most powerful swell: Monday 13 Jul, 6PM (local time) - 13ft (4.0m), 17s period, SSW swell with 8,982 kJ wave energy.
  • Next surfable swell (1★+): Tuesday 7 Jul, 6PM (local time) - 5ft (1.5m), 16s 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 (Jul 07) at 6PM. The primary swell is predicted to be 1.5m and 16s period with a secondary swell of 0.2m and 24s. The wind is predicted to be cross-offshore as the swell arrives.

The most powerful waves expected at Knights in the next 16 days are 4.0m 17s and forecast to arrive on Monday (Jul 13) 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 0.8m 4s period and expected on Saturday (Jul 11) at 3AM.

Wave TypeTime (ACST) & Date Wave Height & Period
Next good surf (1 star+) 6PM (Tue 7th Jul)5ft (1.5m) 16s
Best Surf 6AM (Sun 12th Jul)11ft (3.5m) 12s
Most Powerful 6PM (Mon 13th Jul)13ft (4.0m) 17s

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


Updates in  hr  min  s Forecast update imminent

Alright, Rusty here. Let's chew the fat on what's coming down the line.

First off, don't bother paddling out just yet. There's a bit of a dry spell. The first real chance to get wet kicks off on Tuesday morning, July 7th at Knights (beach and reef). We're looking at a 5 to 5 foot SSW swell, with a very long 16-second gap between the waves. The water's sitting at about 59°, right where it should be for the season. This one's not for the beginners though. With a cross-offshore breeze (NE to ENE) keeping it tidy, it's got moderate to strong energy, but it's built for the experienced crew.

Wednesday the 8th is the absolute standout of the first week. The swell muscles up to 8 feet in the morning and hangs around 7 feet in the afternoon, still pumping out of the SSW. That 17 to 18-second period is a pure groundswell. The combined swell energy is very strong. Wind stays a friendly cross-offshore from the NE and ENE, so you're looking at clean, lined-up walls. This is expert territory – anything over 8 feet is a big boy's game, and we're right on the edge. Expect a crowd, because it's 'often' busy here.

Thursday the 9th is another solid option, especially the afternoon. The swell eases to 5 feet, but the wind goes glassy from the NE. That's a massive plus – clean, silky faces on a long-period SSW swell. Perfect for the advanced surfer who wants quality without the full brunt of Wednesday.

The weekend (July 11th and 12th) goes pear-shaped. Saturday the wind swings onshore and the swell gets short and choppy. Skip it. Sunday the 12th sees the swell jump to 13 feet, which is just too much for this break. The forecast says it's too big. A hard no.

Heading into the second week, things get less certain. Monday the 13th stays big and onshore. Not good. Tuesday the 14th is still on the large side (10 feet) but with lighter wind, though it's still onshore. It's marginal.

Now, a real bright spot appears on Wednesday the 15th of July. Morning shows a 8 foot SSW swell with glassy conditions. That is a very, very clean setup. The swell energy is strong. This is expert-level size, but with that glass, a dawn patrol could be magic. The afternoon gets a cross-onshore bump, so make it an early one.

Thursday the 16th looks beautiful. The swell drops to a more manageable 7 feet in the morning and 6 feet in the afternoon, with a nice 13 to 14-second period. The wind is offshore (NNE) in the morning and goes glassy (ENE) in the afternoon. The energy is moderate to strong. That's a top contender for the second week.

After that, the outlook gets fuzzy. There's a smaller window on Friday the 17th with 3 to 5 feet of SSW swell, but it's lighter. Then, from Saturday the 18th, we see a run of larger SSW and SW swells (7 to 12 feet) but paired with strong NNW and W winds. By Monday the 21st, the swell is back over 12 feet, making it another "too big" scenario. The forecast for that far out is a coin flip.

So, the bottom line: Wednesday the 8th is the big dog of the first week for power and clean lines. Thursday the 16th is your best bet in the second week for quality, manageable size and glassy conditions. Both spots are for experts only.

Rusty.

Short Range Forecast

Mostly dry. Very mild (max 16°C on Thu afternoon, min 8°C on Tue morning). Wind will be generally light.

Days 4-6 Weather Summary

Light rain (total 4mm), mostly falling on Sat morning. Very mild (max 15°C on Sun morning, min 10°C on Sat afternoon). Winds increasing (light winds from the NW on Fri afternoon, fresh winds from the NW by Sat morning).

Tuesday
7
Wednesday
8
Thursday
9
Friday
10
Saturday
11
Sunday
12
Monday
13
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
4
4
4
5
4
4
3
4
4
4
2
2
1
0
0
!
!
0
0
!
!
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
1.4
SSW
16
1.5
SSW
16
1.7
SSW
16
2.3
SSW
18
2.2
SSW
17
1.9
SSW
16
1.5
SSW
15
1.5
SSW
15
1.7
SSW
16
1.5
SSW
15
1.4
SSW
14
1.3
SSW
14
1.1
SW
14
3
SW
9
3.5
SW
12
4
SW
14
3.5
SSW
13
3.5
SSW
14
4
SSW
16
3.5
SSW
16
3.5
SSW
17
Wave Graph
Metric surfscale
Energy kJ
1042
1136
1307
3323
2833
1750
936
911
1498
1001
763
626
456
1470
2839
6422
3978
5247
7930
6351
7893
Wind (km/h)
15
NE
15
ENE
10
NE
15
NE
15
ENE
10
NE
10
NE
5
NE
10
NNW
15
NNW
15
NW
20
NNW
35
NW
30
WSW
25
W
25
W
25
W
20
W
20
W
20
WSW
10
W
Wind State
cross-off
cross-off
off
cross-off
cross-off
off
off
glassy
cross-off
cross-off
cross-off
cross-off
cross-off
cross-on
cross-on
cross
cross
cross-on
cross-on
cross-on
cross-on
High Tide
4:09PM1.03m
5:19AM0.91m
4:10PM0.95m
6:42AM0.98m
11:09AM1.17m
11:40AM1.31m
00:41AM0.56m
12:13PM1.41m
00:38AM0.54m
12:44PM1.46m
00:43AM0.53m
Low Tide
11:17PM0.58m
8:55AM0.82m
11:26PM0.60m
7:57AM0.97m
10:31PM0.60m
9:53PM0.57m
9:55PM0.53m
10:07PM0.50m
10:23PM0.50m
clear
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
rain showers
part cloud
rain showers
rain showers
part cloud
part cloud
clear
clear
part cloud
part cloud
cloud
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
7:24
7:24
7:24
7:24
7:22
7:22
7:22
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
5:15
5:15
5:15
5:16
5:16
5:17
5:17
 mm
1
2
1
Temp °C
11
13
12
13
15
13
15
16
13
14
14
13
13
11
12
15
15
13
14
14
14
Feels °C
7
10
10
10
12
11
13
15
11
10
11
9
7
5
7
9
10
8
9
10
12
Swell 1
Height (m)
Direction
Period (s)
1.4
SSW
16
1.5
SSW
16
1.7
SSW
16
2.3
SSW
18
2.2
SSW
17
1.9
SSW
16
1.5
SSW
15
1.5
SSW
15
1.7
SSW
16
1.5
SSW
15
1.4
SSW
14
1.3
SSW
14
1.1
SW
14
3.5
SSW
14
3.5
SSW
13
3.5
SSW
14
4
SSW
16
3.5
SSW
16
3.5
SSW
17
Energy kJ
1042
1136
1307
3323
2833
1750
936
911
1498
1001
763
626
456
4916
3978
5247
7930
6351
7893
Swell 2
Height (m)
Direction
Period (s)
0.7
SSE
10
0.4
SSW
22
0.1
SW
20
0.8
SSW
18
0.9
WSW
14
0.5
SSW
18
1.8
SSW
19
Energy kJ
98
154
15
418
362
178
2313
Swell 3
Height (m)
Direction
Period (s)
0.7
SW
18
Energy kJ
323
Wind waves
Height (m)
Direction
Period (s)
0.5
ENE
3
0.4
ENE
3
0.5
NE
3
0.4
NNE
3
0.5
N
3
0.4
NW
3
0.7
NW
4
1.2
WNW
5
3
SW
9
3.5
SW
12
4
SW
14
Energy kJ
5
3
5
4
4
2
12
63
1470
2839
6422
Nearest Offshore or Glassy
Rating
(10 max)
3
3
4
4
4
4
3
4
4
3
3
2
1
4
1
1
1
9
1
1
6
Distance (km)
0
0
0
0
0
0
0
0
0
0
2
2
870
578
870
1034
1164
578
1023
1023
2
Best forecast wave conditions in South Australia - East Coast
Rating
(10 max)
4
4
4
9
7
4
3
5
4
5
3
2
6
Best forecast wave conditions in Australia
Rating
(10 max)
7
5
5
7
6
5
4
5
5
5
4
3
4
4
5
5
9
9
7
5
6
Header Global
Rating
(10 max)
7
5
7
9
8
9
7
7
6
7
5
5
5
5
5
5
9
9
7
5
6
  • 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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