Knights surf break

Knights surfForecast / SA – East Coast / Australia

information circle12 Day Weather and Surf, issued 9 am Tuesday 23 Dec 2025 ACDT
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
18.9° C
(Which is 1.5°C warmer than normal for this time of year)
Nearby Cam: 10km away, Encounter Bay Webcam


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 Saturday (Dec 27) at 4AM. The primary swell is predicted to be 0.8m and 17s period with a secondary swell of 1.5m and 7s. Another secondary swell of 1.0m and 12s is also forecast. The wind is predicted to be cross-offshore as the swell arrives.

The most powerful waves expected at Knights in the next 12 days are 3.0m 16s and forecast to arrive on Tuesday (Dec 23) at 7PM. Winds are predicted to be onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.9m 4s period and expected on Friday (Dec 26) at 7AM.

Wave TypeTime (ACDT) & Date Wave Height & Period
Next good surf (1 star+) 4AM (Sat 27th Dec)2.5ft (0.8m) 17s
Best Surf 4AM (Sat 27th Dec)2.5ft (0.8m) 17s
Most Powerful 7PM (Tue 23rd Dec)10ft (3.0m) 16s

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

Updates in  hr  min  s Forecast update imminent

Short Range Forecast Mostly dry. Very mild (max 16°C on Tue morning, min 12°C on Thu night). Wind will be generally light.

Days 3-6 Weather Summary Mostly dry. Warm (max 30°C on Sun morning, min 14°C on Fri morning). Wind will be generally light.

Tuesday
23
Wednesday
24
Thursday
25
Friday
26
Saturday
27
Sunday
28
Monday
29
AMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNightAMPMNight
Rating
(10 max)
2
0
3
0
0
0
0
0
1
2
1
3
2
0
2
2
0
3
1
0
0
Swell
Height Map
Wave Height (m) & direction (?)
2
SSW
3
SSW
3
SSW
2.5
SSW
2.5
SSW
3
SSW
3
SSW
2.5
SSW
1.8
SSW
2.1
S
1.8
SSW
0.8
SSW
0.8
SSW
0.8
SSW
0.9
SSW
0.8
SSW
0.8
SSW
1.4
SSW
1.4
SSW
1.2
SW
1.1
SW
Period(s) (?)131716151414141313121217161615141414131211
Wave
Graph
(?)Metric surfscale
Energy kJ (?)1269460639363134303340663137252810521271944353326318334264257763649428288
Wind
(km/h)
15
SSW
20
SSW
10
SW
20
SSW
25
SSW
20
SSE
20
SSE
25
SSE
25
SE
25
ESE
20
S
5
SE
15
ENE
20
SSE
5
NE
10
E
15
S
5
NNE
10
SW
15
SSW
10
SW
Wind State (?)
onshore
cross-onshore
cross-shore
cross-offshore
offshore
glassy
onononononcross-
on
cross-
on
cross-
on
crosscrosscross-
on
crosscross-
off
cross-
on
cross-
off
cross-
off
onoffononon
High Tide
/ height (m)
3:03PM
0.44
3:42AM
1.16
3:35PM
0.46
4:11AM
1.08
4:12PM
0.50
4:38AM
0.99
4:54PM
0.56
5:02AM
0.89
5:45PM
0.63
5:17AM
0.80
6:55PM
0.71
12:01AM
0.73
4:55AM
0.72
11:54PM
0.90
Low Tide
/ height (m)
11:12AM
0.32
7:35PM
0.15
11:33AM
0.33
8:07PM
0.19
11:56AM
0.35
8:37PM
0.27
12:18PM
0.39
9:04PM
0.39
12:39PM
0.43
9:18PM
0.54
12:57PM
0.46
8:58PM 2:44AM
0.69 0.71
1:15PM
0.48
Tuesday
23
Wednesday
24
Thursday
25
Friday
26
Saturday
27
Sunday
28
Monday
29
Sunrise5:56--5:56--5:58--5:58--5:58--5:58--6:00--
Sunset-8:30--8:30--8:30--8:31--8:31--8:31--8:32-
clear
clear
clear
part cloud
clear
clear
clear
clear
clear
clear
clear
clear
part cloud
clear
clear
clear
clear
part cloud
cloud
cloud
cloud
Rain (mm)
---------------------
Temp. °C161615161613151413161716282721302824262319
Feels °C (?)131112121291088121316242319262422232018
  • 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 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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