Knights Surf Break

Lat Long: 35.54° S 138.68° E

Knights Surf Forecast and Surf Report

Issued: 2 pm 20 Jul 2026 (local time)

Forecast update in  hr  min

Today's Knights sea temperature is
14.6° C
0.4° 

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


Knights surf forecast from 20 Jul 2026:

  • Best quality surf: Thursday 23 Jul, 6PM (local time) - 13ft (4.0m), 15s period, SSW swell with onshore winds.
  • Most powerful swell: Thursday 23 Jul, 6PM (local time) - 13ft (4.0m), 15s period, SSW swell with 6,743 kJ wave energy.
  • Next surfable swell (1★+): Tuesday 21 Jul, 12AM (local time) - 5ft (1.6m), 14s period with SW 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 21) at 12AM. The primary swell is predicted to be 1.6m and 14s period. 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 15s and forecast to arrive on Thursday (Jul 23) at 6PM. Winds are predicted to be 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 Monday (Jul 27) at 3PM.

Wave TypeTime (ACST) & Date Wave Height & Period
Next good surf (1 star+)12AM (Tue 21st Jul)5ft (1.6m) 14s
Best Surf 6PM (Thu 23rd Jul)13ft (4.0m) 15s
Most Powerful 6PM (Thu 23rd Jul)13ft (4.0m) 15s

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


The Lowdown

Alright, let's get into it. The waves are coming back, but it’s a bit of a slow burn to start. Things kick off properly on Monday, July 20th, with a solid little pulse at Knights. This is a spot that needs a bit of respect—it’s for advanced surfers only, and it’s fairly consistent, so you know it’ll deliver when the conditions line up. The water temp is sitting at 58°, which is about normal for the time of year, so no shock to the system there.

Monday, July 20th sees a clean 4 ft SW swell rolling in with a period of 15 seconds. That’s proper groundswell, with plenty of energy behind it (506). The wind is a light NW cross-off, so the faces will be smooth. It’s a cracking start, but the real standout is Tuesday morning, July 21st. The swell jumps to 5 ft from the SSW, period drops slightly to 13 seconds, but the energy is pumping (796). The wind is a light NNW cross-off, glassy conditions. This is the best of the early window. The swell is a bit too big for beginners, but for the advanced crew, this is a dream.

Tuesday afternoon holds up well, 5 ft SW, still clean. After that, things get messy. Wednesday, July 22nd starts to deteriorate with a cross-shore wind chopping up the 3 ft swell, and by the afternoon, a 7 ft SW swell arrives with a strong cross-on wind. It’s not for paddling, but if you’re into kite surfing, that setup might get you going. Thursday, July 23rd is a write-off—12 ft to 10 ft of onshore slop, big and blown out. Too big for most, and ugly.

Friday, July 24th and Saturday, July 25th are still in the “too big for comfort” zone, with 10 ft to 8 ft SSW swell, but there’s a glimmer. Friday afternoon the wind turns more favourable, and the swell is massive (12 ft, 15 seconds, energy at 4971), but the data says it’s just too big for this break. That’s a big wave session for the brave only. The rest of the week is a bit of a mixed bag, with smaller, choppier conditions and onshore winds.

Now, looking ahead to the second week. Monday, July 27th sees the swell drop back to 4 ft, but the wind is light, and there’s a real chance of clean waves. Then things ramp up again. Tuesday, July 28th is a promise. The morning brings a 8 ft SSW swell, period of 19 seconds—that’s a seriously long period groundswell, with energy at 4064. The wind is a strong NW cross-off, so it’s clean. But the afternoon is massive: 13 ft at 16 seconds (8570 energy). Again, too big for this spot. It’s a warning for the experts: this is a session for the very experienced.

Wednesday, July 29th stays big and messy, with strong cross-shore winds. Thursday, July 30th is a bit smaller but still choppy. The real light at the end of the tunnel is Friday, July 31st. The swell drops to a very manageable 6 ft from the SSW, period 12 seconds. The wind is a light NW cross-off in the morning, switching to a light NE cross-off in the afternoon. Both sessions are clean and the data says “excellent for experienced surfers.” This is your second standout. Crowds are likely at Knights, so get in early.

Saturday, August 1st is still solid, with a 7 ft SSW swell and a strong offshore NNE wind (12 mph). Clean, but the wind is fresh. The energy is moderate (1380). After that, the swell fades. Sunday, August 2nd is lumpy and onshore, and Monday, August 3rd is small and choppy. Tuesday, August 4th is a tiny, clean fade-out: 2 ft SSW swell, 18-second period, glassy conditions. A gentle end to the run.

Overall, the best windows are Tuesday morning, July 21st and Friday, July 31st. The 21st has the best combination of size, clean wind, and energy. The 31st is cleaner and more forgiving for the advanced crew. The big pulses in between are for hardcore big-wave hunters only.

Rusty.

Short Range Forecast

Light rain (total 2mm), mostly falling on Wed morning. Very mild (max 15°C on Mon afternoon, min 10°C on Wed night). Wind will be generally light.

Days 5-7 Weather Summary

Light rain (total 2mm), mostly falling on Sat afternoon. Very mild (max 14°C on Sat morning, min 11°C on Thu afternoon). Wind will be generally light.

Mon
20
Tuesday
21
Wednesday
22
Thursday
23
Friday
24
Saturday
25
Sunday
26
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
3
4
3
3
2
0
1
1
0
0
3
2
!
3
2
1
2
2
0
2
Swell
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Height Map
Wave
Height (m)
Direction
Period (s)
1.1
SW
15
1.6
SW
14
1.5
SSW
13
1.4
SW
13
1.3
SSW
12
1
SW
12
2
SW
12
2.5
SSW
14
3.5
SSW
14
3
SSW
14
3
SSW
16
3
SSW
16
3.5
SSW
15
3
SSW
14
2.5
SSW
13
2.5
SSW
13
2.5
SSW
12
2.1
SSW
11
1.9
SSW
11
1.8
SW
11
Wave Graph
Metric surfscale
Energy kJ
489
1016
796
689
488
264
1150
2546
5301
3985
4285
4372
4971
3452
2510
2239
1708
1080
860
785
Wind (km/h)
10
NW
10
N
10
NNW
15
NW
15
NW
20
W
20
SW
20
SW
25
SW
20
SW
15
SW
15
WSW
20
W
20
W
20
W
15
WSW
15
W
15
WSW
20
SW
15
W
Wind State
cross-off
cross-off
cross-off
cross-off
cross-off
cross
cross-on
on
on
on
on
cross-on
cross-on
cross
cross
cross-on
cross-on
cross-on
cross-on
cross
High Tide
4:08AM0.94m
3:29PM1.02m
4:58AM0.98m
3:26PM0.99m
6:05AM1.00m
11:08AM1.14m
11:31AM1.23m
11:46PM0.57m
11:56AM1.30m
00:06AM0.58m
Low Tide
9:53PM0.52m
8:53AM0.72m
10:07PM0.51m
8:57AM0.86m
10:26PM0.51m
8:04AM0.99m
10:45PM0.53m
10:29PM0.55m
9:52PM0.56m
9:36PM0.54m
part cloud
cloud
cloud
cloud
clear
rain showers
clear
part cloud
rain showers
part cloud
part cloud
part cloud
part cloud
part cloud
part cloud
rain showers
clear
part cloud
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
7:18
7:18
7:18
7:16
7:16
7:16
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
5:22
5:23
5:23
5:24
5:25
5:25
5:27
 mm
1
1
2
Temp °C
15
14
15
14
14
13
14
11
11
11
11
12
13
12
14
14
12
14
15
14
Feels °C
13
12
12
11
11
9
9
6
5
5
6
6
8
8
10
11
9
10
11
11
  • 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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