Knights surf break

Knights surfForecast / SA – East Coast / Australia

information circle12 Day Weather and Surf, issued 2 pm Friday 11 Jul 2025 ACST
Forecast update in hr  min  s Forecast update imminent
Knights surf forecast is for near shore open water. Breaking waves will often be smaller at less exposed spots.
Today's Knights sea temperature is
14.5° C
(Which is slightly cooler than normal)


Best Forecast Surf Conditions for Knights this week:

The surf forecast for Knights over the next 12 days: The first swell (rated 1 star or higher) is forecast to arrive on Friday (Jul 11) at 9PM. The primary swell is predicted to be 2.5m and 13s period with a secondary swell of 0.3m and 22s. The wind is predicted to be cross-shore as the swell arrives.

The most powerful waves expected at Knights in the next 12 days are 3.5m 19s and forecast to arrive on Thursday (Jul 17) at 9PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.3m 5s period and expected on Sunday (Jul 13) at 9AM.

Wave TypeTime (ACST) & Date Wave Height & Period
Next good surf (1 star+) 9PM (Fri 11th Jul)8ft (2.5m) 13s
Best Surf12AM (Mon 14th Jul)11ft (3.5m) 14s
Most Powerful 9PM (Thu 17th Jul)11ft (3.5m) 19s

Table - best surf conditions forecast for Knights over the next 12 days.

Updates in  hr  min  s Forecast update imminent
Fri
11
Saturday
12
Sunday
13
Monday
14
Tuesday
15
Wednesday
16
Thursday
17
Friday
18
Saturday
19
Sunday
20
Monday
21
Tuesday
22
Wed
23
PMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAM
Rating
(10 max)
0
0
0
0
0
0
Swell
Height Map
Wave Height (m) & direction (?)
2.4
SSW
2.5
SSW
2.5
SSW
2.5
SSW
2.2
SSW
1.8
SSW
3
SW
3.5
SSW
3
SSW
2.5
SSW
2.1
SSW
2
SSW
1.8
SSW
1.9
SW
1.8
SW
2.2
SSW
2.5
SSW
3
SSW
2.5
SSW
3.5
SSW
3
SSW
2.5
SSW
3
SSW
3
SSW
3.5
SSW
3.5
SSW
3
SSW
3
SSW
3
SSW
2.4
SSW
2.2
SSW
1.7
SSW
1.3
SSW
1.1
SSW
1
SSW
1
SSW
Period(s) (?)141314171615141414131312131212131615151917171616181817161615141413131216
Wave
Graph
(?)Metric surfscale
Energy (?)22022539310641282417140930094302297721161452118110491083106620163553549870141035354914322413649441031310014722742763731234920331048543427507852
Wind
(km/h)
20
W
10
NW
15
NW
20
NNW
25
NNW
35
NW
25
WSW
15
WSW
10
WNW
15
WNW
5
W
10
SW
15
WSW
15
W
15
NW
20
NW
20
NW
15
W
10
SSE
5
ESE
10
NE
10
ENE
10
N
25
NNW
25
NW
10
N
25
NNW
25
N
15
WNW
20
N
30
NNW
30
W
35
W
30
W
25
W
25
W
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
crosscross-
off
cross-
off
cross-
off
cross-
off
cross-
off
cross-
on
cross-
on
crosscrosscrossoncross-
on
cross-
on
cross-
off
cross-
off
cross-
off
cross-
on
cross-
on
crossoffcross-
off
cross-
off
cross-
off
cross-
off
cross-
off
cross-
off
cross-
off
crosscross-
off
cross-
off
cross-
on
cross-
on
cross-
on
cross-
on
cross-
on
High Tide
/ height (m)
1:16AM
0.58
1:56PM
1.39
1:44AM
0.60
2:24PM
1.34
2:13AM
0.64
2:52PM
1.28
2:45AM
0.71
3:17PM
1.19
3:19AM
0.79
3:39PM
1.11
3:58AM
0.87
3:52PM
1.02
4:43AM
0.95
3:47PM
0.96
5:41AM 10:55AM
1.01 0.98
11:09AM
1.14
11:37AM
1.28
12:07PM
1.38
12:58AM
0.54
Low Tide
/ height (m)
9:53PM
0.48
5:42AM
0.32
9:58PM
0.47
6:22AM
0.30
10:06PM
0.48
7:01AM
0.31
10:15PM
0.50
7:39AM
0.37
10:23PM
0.53
8:16AM
0.48
10:27PM
0.57
8:48AM
0.62
10:22PM
0.59
9:06AM
0.79
10:01PM
0.58
8:32AM
0.96
9:40PM
0.56
9:39PM
0.53
9:49PM
0.50
10:04PM 2:03AM
0.49 0.53
Fri
11
Saturday
12
Sunday
13
Monday
14
Tuesday
15
Wednesday
16
Thursday
17
Friday
18
Saturday
19
Sunday
20
Monday
21
Tuesday
22
Wed
23
Sunrise--7:22--7:22--7:22--7:22--7:22--7:20--7:20--7:20--7:20--7:18--7:18--7:18
Sunset5:16--5:17--5:17--5:19--5:20--5:20--5:21--5:22--5:22--5:22--5:23--5:23--
part cloudclearclearpart cloudpart cloudpart cloudrain showerscloudrain showersrain showersrain showersclearclearclearpart cloudpart cloudpart cloudrain showerslight rainpart cloudclearclearpart cloudpart cloudclearpart cloudpart cloudpart cloudclearclearrain showersrain showersrain showersrain showerspart cloudpart cloud
Rain (mm)
------1-111------32-----------1411--
Temp. °C151415161515131211121014141214141213111212131014151214171416161211121215
Feels °C (?)12131112108878871010999711910810781011811101110435710

Short Range Forecast: Light rain (total 2mm), mostly falling on Sun afternoon. Very mild (max 16°C on Sat afternoon, min 10°C on Sun night). Winds increasing (light winds from the WNW on Fri afternoon, fresh winds from the NW by Sun morning).

Days 3-6 Weather Summary Light rain (total 5mm), mostly falling on Thu morning. Very mild (max 14°C on Tue morning, min 9°C on Mon afternoon). Wind will be generally light.

Days 6-9 Weather Summary Light rain (total 2mm), mostly falling on Thu afternoon. Very mild (max 15°C on Sat afternoon, min 8°C on Fri morning). Wind will be generally light.

Long Range Forecast: Light rain (total 7mm), mostly falling on Mon night. Very mild (max 17°C on Sun afternoon, min 9°C on Sun night). Mainly strong winds.

  • 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 12 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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