Kennack Sands Surf Break

Lat Long: 50.00° N 5.17° W

Kennack Sands Surf Forecast and Surf Report

Issued: 12 pm 20 Aug 2026 (local time)

Forecast update in  hr  min

Today's Kennack Sands sea temperature is
18.9° C
1.8° 

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


Kennack Sands surf forecast from 20 Aug 2026:

  • Most powerful swell: Wednesday 26 Aug, 1PM (local time) - 6ft (1.9m), 8s period, SSW swell with 488 kJ wave energy.

Best Forecast Surf Conditions for Kennack Sands this week:

The most powerful waves expected at Kennack Sands in the next 16 days are 1.9m 8s and forecast to arrive on Wednesday (Aug 26) at 1PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 2.3m 9s period and expected on Thursday (Aug 20) at 7PM.

Wave TypeTime (BST) & Date Wave Height & Period
Next good surf (1 star+)--
Best Surf--
Most Powerful 1PM (Wed 26th Aug)6ft (1.9m) 8s

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


The Lowdown

Alright folks, Rusty here. Let’s have a look at what’s on the cards for Kennack Sands over the next couple of weeks. Straight up, I gotta be honest with you – this is a tough stretch. The outlook is quiet, and we’ve got a long, dry gap to start. There’s no surf worth paddling out for until late in the second week, and even then it’s tiny.

For the first ten days or so, from Thursday the 20th of August right through to the end of the month, the swell is basically a no-show. We’re looking at flat, low-energy conditions – we’re talking a combined swell energy barely cracking 20 or 30 (between 17 and 55 for the most part). The water temperature at the start is sitting at 66°, which is a touch warmer than normal for this time of year, but that’s about the only thing worth noting. The wind is often offshore or clean, but with next to no waves, that doesn't mean a thing. You’ll see a bit of a bump in size around Monday the 24th and Wednesday the 26th, with some cross-onshore wind and messy, lumpy conditions – the swell energy gets up to 377 or 394, but with periods around 6 to 8 seconds and onshore breeze, it’s just a choppy, blown-out mess. That Monday afternoon sees swell height up to 7 ft but with short period and strong cross-onshore wind, that’s one for the kites, not the paddle.

Things stay poor right through until the very end of the run. Finally, around Monday the 31st of August, we see a little glimmer. A small SSW swell bumps in at 3 ft with a 9-second period and moderate offshore wind from the NW, giving clean conditions. The energy is weak though, only 88. It’s not going to set the world on fire, but if you’re desperate, it’s the only halfway decent window in the whole outlook. That Tuesday morning the 1st of September is clean too, but the swell drops right back to 1 ft.

So the standout, if you can call it that, is Monday the 31st of August and Tuesday the 1st of September. Kennack Sands, being sheltered and inconsistent, just doesn’t have the exposure to pick up much from the SSW. The optimum swell direction is SSW, which matches what we get at the end, but the size is tiny and the energy is weak. Still, with clean offshore wind, a longboard session might be on the cards. Just don’t expect any power – this is a glassy, knee-high dribble.

Honestly, it’s a quiet period, and a blank run like this isn’t unusual for a sheltered spot. Forecasts can change, but right now, I’d save the wax for another week.

Rusty.

Short Range Forecast

Light rain (total 2mm), mostly falling on Fri morning. Very mild (max 18°C on Thu morning, min 14°C on Thu night). Winds decreasing (fresh winds from the WNW on Thu morning, light winds from the N by Fri night).

Days 4-6 Weather Summary

Light rain (total 2mm), mostly falling on Mon night. Very mild (max 19°C on Tue morning, min 17°C on Sun morning). Winds decreasing (strong winds from the E on Mon morning, light winds from the S by Tue afternoon).

Thursday
20
Friday
21
Saturday
22
Sunday
23
Monday
24
Tuesday
25
Wednesday
26
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
Rating
(10 max)
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
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)
0.2
SSW
14
0.2
SSW
14
0.2
SSW
14
0.2
SSW
13
0.2
SSW
13
0.2
SSW
16
0.2
SSW
15
0.7
E
5
0.3
SSW
15
0.3
SSW
14
0.3
SSW
14
0.3
SSW
14
1.4
ESE
6
2
E
7
1.5
E
7
1.1
E
7
0.6
E
6
0.9
SSW
4
1.4
SSW
8
1.7
SSW
8
1.1
SSW
8
Wave Graph
Metric surfscale
Energy kJ
21
20
18
17
17
24
21
20
42
38
38
39
122
360
196
113
26
34
257
394
145
Wind (km/h)
30
WNW
30
NW
15
NNW
25
N
25
NNW
10
N
20
E
20
ESE
15
NNE
20
E
20
ESE
25
ENE
40
E
45
E
40
E
20
ESE
15
SSE
20
S
30
S
35
SSE
25
WSW
Wind State
off
off
cross-off
cross-off
off
cross-off
cross-on
cross-on
cross-off
cross-on
cross-on
cross
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
cross-on
on
cross-off
High Tide
10:36AM3.66m
11:06PM3.49m
11:42AM3.40m
00:25AM3.26m
1:09PM3.29m
1:52AM3.23m
2:28PM3.38m
3:01AM3.38m
3:28PM3.62m
3:53AM3.62m
4:14PM3.91m
4:34AM3.89m
4:52PM4.21m
Low Tide
5:07PM1.34m
5:31AM1.50m
6:05PM1.62m
6:38AM1.72m
7:29PM1.75m
8:12AM1.74m
9:05PM1.64m
9:33AM1.53m
10:08PM1.35m
10:25AM1.22m
10:53PM1.02m
11:06AM0.90m
11:30PM0.70m
clear
clear
clear
rain showers
clear
clear
clear
part cloud
part cloud
clear
clear
part cloud
part cloud
part cloud
rain showers
part cloud
part cloud
rain showers
thunderstorm
thunderstorm
thunderstorm
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:16
6:18
6:18
6:20
6:22
6:24
6:24
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
8:30
8:28
8:25
8:23
8:22
8:20
8:17
 mm
2
1
1
3
4
1
Temp °C
18
18
16
16
17
15
17
17
17
17
18
17
18
18
18
19
19
19
18
18
18
Feels °C
12
12
13
11
11
13
13
13
13
14
14
14
12
11
11
18
19
18
14
13
13
  • Map Icons:
  • Break
  • Live Wave Height (m)
  • Live Wind Speed (km/h)
  • Surf Rating (10 Max)
  • Ocean Swells (m)
  • Wind Speed (km/h)
Map placeholder
How to use the Wavefinder 
submit an eyeball surf report

Quick surf report for Kennack Sands:

join our community of surf reporters

FREE! Surf-Forecast.com widget for your website

The surf report / weather widget below is available to embed on third party websites free of charge and provides a summary of our Kennack Sands surf forecast. Simply grab the html code snippet that we provide and paste it into your own site. You can choose your preferred language and metric/imperial units for the surf forecast feed to suit users of your site. Click here to get the code.


Information about the Kennack Sands Surf forecast

The above surf forecast table for Kennack Sands provides essential information for determining whether the surfing conditions will be good over the next 16 days. A general guide to surfing at Kennack Sands can be found by selecting the local surf guide option on the grey menu. Our Kennack Sands 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 (Kennack Sands) 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 Kennack Sands 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.

Kennack Sands is 9 km (6 miles) from The Lizard. If you plan a holiday in South Cornwall, look for hotels and other accommodation in The Lizard. The Lizard has rooms for a wide range of budgets as well as car hire and transport links.

Nearest locationNearest