Knights Surf Break

Lat Long: 35.54° S 138.68° E

Knights Surf Forecast and Surf Report

Issued: 8 pm 22 Aug 2026 (local time)

Forecast update in  hr  min

Today's Knights sea temperature is
14.3°C
0.0° 

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


Knights surf forecast from 22 Aug 2026:

  • Best quality surf: Sunday 23 Aug, 6AM (local time) - 7ft (2.2m), 14s period, SSW swell with offshore winds.
  • Most powerful swell: Friday 28 Aug, 3AM (local time) - 7ft (2.2m), 18s period, SSW swell with 3,032 kJ wave energy.
  • Next surfable swell (1★+): Sunday 23 Aug, 3AM (local time) - 8ft (2.5m), 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 Sunday (Aug 23) at 3AM. The primary swell is predicted to be 2.5m and 14s period with a secondary swell of 0.9m and 19s. 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 2.2m 18s and forecast to arrive on Friday (Aug 28) at 3AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.6m 3s period and expected on Monday (Aug 24) at 6PM.

Wave TypeTime (ACST) & Date Wave Height & Period
Next good surf (1 star+) 3AM (Sun 23rd Aug)8ft (2.5m) 14s
Best Surf 6AM (Sun 23rd Aug)7ft (2.2m) 14s
Most Powerful 3AM (Fri 28th Aug)7ft (2.2m) 18s

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


The Lowdown

G'day, Rusty here, looking at the forecast for Knights. This spot is a solid advanced break, a beach and reef combo that's exposed to the south. We're in for a mixed bag over the next 16 days, with some real standouts mixed in with a bit of chop and larger swell.

The water temp is about average for this time of year, so nothing too wild, just standard conditions for a wetsuit.

The first real action kicks off on Sunday the 23rd of August. Morning starts with a clean 7ft swell from the SSW, and a light NNE offshore breeze. The wave energy is pumping at 2626, so it's got some serious grunt. You'll be looking at excellent surf for experienced surfers, but with that size and power, it's definitely not for the beginners. The afternoon sees the wind shift to a cross-shore from the WNW, but the swell holds strong at 7ft, though the period drops to 16 seconds.

Monday the 24th is a beauty. The morning is glassy as anything with an ESE wind at 5 km/h, and a clean 5ft SSW swell. The energy is a moderate 997, but that glassy surface makes it a top pick. The afternoon stays clean with a cross-offshore breeze and a 4ft swell.

Tuesday the 25th is a write-off. Strong onshore winds from the SSW will ruin the surface, so give it a miss.

Wednesday the 26th bounces back nicely. The morning is clean again with a light cross-offshore wind from the NW and a 6ft SSW swell. Energy is at 1094, so it's a solid session for experienced surfers.

Thursday the 27th is another good one. The morning has a 4ft SSW swell with a 14-second period, and a clean cross-offshore breeze. The afternoon is a real highlight: a 3ft swell from the SW with a very long period of 20 seconds. This is a proper groundswell. The energy is still high at 1365, and the clean conditions make it a dream for the experienced crew. That long period will groom the waves, but it might break a bit straight at the beach, so work the reef.

Friday the 28th is the standout of the whole period. The morning is glassy, dead calm wind, with a 7ft SSW swell and a long 17-second period. The energy is massive at 2556. This is one for the advanced surfers only, but the conditions are excellent. The afternoon gets a bit cross-onshore, but still a solid 7ft swell.

The second week gets a bit more weather-dependent. Sunday the 30th of August has a massive 10ft SSW swell in the afternoon, but the wind is cross-onshore, making it a bit messy. The energy is huge at 4092, but it's a wild one.

Monday the 31st of August is the next big standout. The morning is clean with a 8ft SSW swell, a 17-second period, and a light cross-offshore wind. Energy is a massive 3963. This is a proper session, but only for the experts.

Tuesday the 1st of September gets a bit fresh with the wind, especially in the morning at 30 km/h, but it's cross-offshore, keeping it clean. The swell drops to 6ft.

Thursday the 3rd of September sees the afternoon swell jump to a massive 13ft from the SW, with a 15-second period and an energy reading of 12896. That's a monster, but the wind is onshore and choppy, so it's a no-go for paddle surfing – that's kite territory.

Friday the 4th of September has a huge 12ft SSW swell in the morning, but the wind is light cross-onshore. The forecast says it's predicted to be too big for the break, so even for the experts, it's a "watch and wait" situation.

Saturday the 5th of September settles back to a manageable 7ft SSW swell with a clean cross-offshore breeze, a solid end to the period.

The best of the best are the glassy mornings on Friday the 28th of August and Monday the 31st of August. Saturday the 28th is the absolute top pick for a clean, powerful, and long-period swell with no wind. The 31st is a close second.

Stay safe out there, and keep your eyes on the horizon.

Rusty

Short Range Forecast

Moderate rain (total 11mm), heaviest on Mon afternoon. Very mild (max 17°C on Sun morning, min 11°C on Sat night). Wind will be generally light.

Days 5-7 Weather Summary

Mostly dry. Very mild (max 18°C on Fri morning, min 11°C on Tue night). Wind will be generally light.

Sunday
23
Monday
24
Tuesday
25
Wednesday
26
Thursday
27
Friday
28
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
5
4
3
4
3
3
2
0
0
2
4
2
3
4
4
4
4
3
4
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
14
2.2
SSW
16
1.9
SSW
15
1.6
SSW
14
1.3
SSW
14
1.4
SSW
13
2.1
SSW
13
1.8
SSW
14
2
SSW
14
1.8
SSW
12
1.5
SSW
11
1.4
SSW
11
1.3
SSW
14
1
SW
20
1.9
SSW
18
2.1
SSW
17
2
SSW
16
1.7
SSW
16
Wave Graph
Metric surfscale
Energy kJ
2736
1867
2479
1537
982
662
669
1449
1222
1516
1032
517
492
621
784
2212
2551
1928
1441
Wind (km/h)
10
N
10
NNE
10
WNW
10
NE
5
ESE
10
ESE
10
WSW
25
SSW
20
SW
10
WSW
5
NW
10
WNW
10
N
10
NNW
10
NW
5
NNW
0
NE
5
SE
0
NE
Wind State
off
off
cross
off
glassy
cross-off
cross-on
on
on
cross-on
cross-off
cross
cross-off
cross-off
cross-off
cross-off
glassy
cross-on
glassy
High Tide
11:23AM1.13m
11:44AM1.18m
00:40AM0.59m
12:05PM1.20m
00:37AM0.61m
12:27PM1.20m
00:45AM0.65m
12:49PM1.19m
00:59AM0.70m
1:11PM1.16m
1:17AM0.77m
Low Tide
8:54PM0.45m
8:42PM0.45m
8:26PM0.43m
4:30AM0.48m
8:08PM0.40m
5:20AM0.39m
7:54PM0.38m
6:00AM0.31m
7:49PM0.36m
clear
clear
clear
part cloud
light rain
light rain
light rain
rain showers
clear
clear
part cloud
clear
clear
clear
clear
part cloud
part cloud
part cloud
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:48
6:46
6:45
6:43
6:41
6:41
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
5:47
5:49
5:50
5:50
5:51
5:52
 mm
2
5
3
1
Temp °C
12
17
17
15
14
12
13
14
13
12
14
15
12
16
17
15
18
17
15
Feels °C
12
15
15
12
12
10
10
9
8
9
12
13
10
12
14
13
16
15
14
  • 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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