Sennen Cove Surf Break

Lat Long: 50.08° N 5.70° W

Sennen Cove Surf Forecast and Surf Report

Issued: 6 am 17 Aug 2026 (local time)

Forecast update in  hr  min

Today's Sennen Cove sea temperature is
18.5° C
1.3° 

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


Sennen Cove surf forecast from 17 Aug 2026:

  • Most powerful swell: Thursday 20 Aug, 1AM (local time) - 8ft (2.5m), 9s period, WNW swell with 1,051 kJ wave energy.

Best Forecast Surf Conditions for Sennen Cove this week:

The most powerful waves expected at Sennen Cove in the next 16 days are 2.5m 9s and forecast to arrive on Thursday (Aug 20) at 1AM. 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 5s period and expected on Friday (Aug 21) at 1PM.

Wave TypeTime (BST) & Date Wave Height & Period
Next good surf (1 star+)--
Best Surf--
Most Powerful 1AM (Thu 20th Aug)8ft (2.5m) 9s

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


The Lowdown

Alright folks, Rusty here. Let’s have a look at what Sennen Cove has in store for us.

Right off the bat, I gotta be straight with you – it’s a tough watch for the next week or so. The first solid recommendation doesn’t pop up until Wednesday the 26th of August, so we’re looking at a good nine-day gap with no surf worth paddling out for. A lot of that first week is just onshore junk or messy cross-shore stuff, and the swell energy is weak to moderate at best, with readings like 135 (moderate energy) and 188 (moderate energy) just showing disorganised, choppy conditions.

Now, the standout of the whole forecast is definitely Sunday the 30th of August. That’s the one you want to circle. We’ve got a clean 8ft to 10ft swell rolling in from the west with a period around 9 seconds. The combined swell energy is pumping hard – between 750 and 1279 (strong). The wind is the real hero here: on Sunday morning it’s a light cross-offshore breeze that cleans things right up, and by Sunday afternoon, it goes glassy. Absolutely dead calm. That’s dreamy stuff. For the experienced crew, that 10ft is a proper handful but the wave comment says “excellent surf conditions for experienced surfers” so it could be one of those classic sessions. The only thing to keep in mind is that a west swell at Sennen Cove, with the optimum direction being west, is pure magic. Crowds? This spot can sometimes get busy, so on a Sunday with clean, solid swell, expect company.

Before that, Wednesday the 26th and Thursday the 27th offer a couple of marginal windows. On the 26th morning, there’s a 7ft west-southwest swell (moderate energy at 593) with light cross-onshore wind. It’s not perfect, but it’s surfable. Thursday the 27th gets a bit bigger with an 8ft west-southwest swell by the afternoon (strong energy at 821), but the wind is onshore, so it’ll be lumpy. That one is really only for the die-hards.

Then we roll into the very end of the forecast: Monday the 31st of August and Tuesday the 1st of September are a write-off again – strong onshores and messy. Nothing to get excited about.

One last thing: the water temp is sitting at a pleasant 65°F, which is about a touch warmer than normal for this time of year. Not a game-changer, but nice to know when you’re sitting in the lineup.

So there you have it. A long wait, but that Sunday the 30th is the jewel in the crown. Get it while it’s glassy.

Rusty.

Short Range Forecast

Light rain (total 2mm), mostly falling on Wed afternoon. Very mild (max 19°C on Mon morning, min 17°C on Mon afternoon). Mainly fresh winds.

Days 4-6 Weather Summary

Mostly dry. Very mild (max 17°C on Thu morning, min 15°C on Fri afternoon). Mainly fresh winds.

Monday
17
Tuesday
18
Wednesday
19
Thursday
20
Friday
21
Saturday
22
Sunday
23
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)
0.7
WNW
8
1.1
WNW
8
1.1
W
7
1.4
WNW
6
1.5
WNW
6
1.8
WNW
7
1.9
WNW
8
2.1
W
8
2.5
WNW
9
2.2
WNW
9
1.8
WNW
9
1.3
WNW
9
0.8
WNW
8
1.2
N
6
0.8
N
5
1.4
N
6
1.3
N
6
0.3
SSW
15
0.3
SSW
14
0.3
SSW
14
0.3
SSW
14
Wave Graph
Metric surfscale
Energy kJ
73
143
107
144
160
293
416
531
1051
792
589
283
79
85
29
156
119
42
38
40
40
Wind (km/h)
20
WNW
25
WNW
30
W
30
WNW
30
WNW
30
WNW
35
WNW
35
W
35
W
25
NW
25
NNW
20
N
30
N
30
N
30
N
30
N
30
N
30
NE
25
NE
30
NNE
35
NNE
Wind State
cross-on
on
on
cross-on
on
on
on
on
on
cross-on
cross-on
cross
cross
cross
cross
cross
cross-off
cross-off
cross-off
cross-off
cross-off
High Tide
8:44PM5.11m
9:03AM4.78m
9:23PM4.68m
9:44AM4.42m
10:06PM4.24m
10:30AM4.04m
10:59PM3.84m
11:34AM3.72m
00:17AM3.56m
1:05PM3.59m
1:52AM3.54m
2:30PM3.72m
3:04AM3.75m
Low Tide
2:54PM0.50m
3:16AM0.65m
3:31PM0.84m
3:53AM1.03m
4:11PM1.21m
4:34AM1.41m
4:59PM1.57m
5:25AM1.74m
6:02PM1.84m
6:37AM1.94m
7:29PM1.95m
8:09AM1.93m
8:57PM1.80m
part cloud
part cloud
part cloud
part cloud
cloud
part cloud
part cloud
rain showers
rain showers
part cloud
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:13
6:15
6:16
6:18
6:20
6:20
6:22
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
8:37
8:36
8:34
8:31
8:30
8:28
8:25
 mm
1
1
Temp °C
19
17
19
18
18
18
18
18
18
17
16
16
16
15
15
16
16
17
17
17
17
Feels °C
18
14
16
15
14
13
12
12
12
13
11
12
10
9
9
10
10
12
13
11
11
  • 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 Sennen Cove Surf forecast

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

Are you planning a holiday in North Cornwall? If you are looking for accommodation near Sennen Cove, camping, hotels and holiday cottages in North Cornwall, consider staying in Penzance which is 12 km (7 miles) away. Other places in and around North Cornwall where you can find information about places to rent, and car hire include Camborne which is 31 km (19 miles) away, The Lizard, Penryn and Falmouth.

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