Penthievre Surf Break

Lat Long: 47.57° N 3.14° W

Penthievre Surf Forecast and Surf Report

Issued: 7 pm 15 Jul 2026 (local time)

Forecast update in  hr  min

Today's Penthievre sea temperature is
21.7° C
3.9° 

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


Penthievre surf forecast from 15 Jul 2026:

  • Best quality surf: Friday 17 Jul, 2AM (local time) - 2.5ft (0.8m), 4s period, W swell with glassy winds.
  • Most powerful swell: Thursday 16 Jul, 5PM (local time) - 2.5ft (0.7m), 8s period, W swell with 66 kJ wave energy.
  • Next surfable swell (1★+): Friday 17 Jul, 2AM (local time) - 2.5ft (0.8m), 4s period with W swell.

Best Forecast Surf Conditions for Penthievre this week:

The surf forecast for Penthievre over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Friday (Jul 17) at 2AM. The primary swell is predicted to be 0.8m and 4s period with a secondary swell of 0.6m and 4s. Another secondary swell of 0.3m and 9s is also forecast. The wind is predicted to be glassy as the swell arrives.

The most powerful waves expected at Penthievre in the next 16 days are 0.7m 8s and forecast to arrive on Thursday (Jul 16) at 5PM. Winds are predicted to be cross-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 Monday (Jul 20) at 8AM.

Wave TypeTime (CEST) & Date Wave Height & Period
Next good surf (1 star+) 2AM (Fri 17th Jul)2.5ft (0.8m) 4s
Best Surf 2AM (Fri 17th Jul)2.5ft (0.8m) 4s
Most Powerful 5PM (Thu 16th Jul)2.5ft (0.7m) 8s

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


The Lowdown

Alright, let’s break down what’s happening at Penthievre for the next couple of weeks.

Honestly, it’s a slow start. From the 16th right on through to the morning of the 28th, there’s barely a ripple. You’re looking at tiny 0.7ft to 2ft slop with very weak energy (5 to 80) and a lot of choppy or cross-on wind. There’s a few clean, glassy moments on the 18th, 19th, and 22nd, but with no swell behind it, you’re just staring at a flat lake. It’s a long, quiet stretch.

Things finally kick into gear on the 28th of July. The afternoon brings a 6ft swell from the SW, but it’s only got a short 7 second period and strong cross-on winds (35 km/h), so it’s gonna be a lumpy, messy closeout. The combined energy is moderate (301), but it’s not really one for the surfboard.

The real highlight is the morning of the 29th of July. Wednesday morning we’ve got a clean 6ft swell from the WSW with a 9 second period, and the wind is a light NNE cross-off. The combined energy is a strong 463, and with glassy, clean conditions, this is your best bet. Solid, fun waves for anyone comfortable on a bigger board. The afternoon gets choppy again as the wind swings cross-on.

Thursday the 30th still has some decent leftover energy – 4ft from the west in the morning with a light NNE offshore breeze. Energy is still moderate at 241, and it’s clean. Worth a look.

Then on the 31st of July, Friday morning, another pulse of 5ft from the west, 8 second period, with a light NNW cross-off. Combined energy is strong again at 493, and the conditions look clean. That’s your second standout, though it’s a ways out so don’t set your watch by it yet.

Water temp is about average for the time of year, nothing to write home about.

So, it’s a flat first week and a half, then a couple of really promising mornings at the tail end. Focus your energy on the 29th and the 31st.

Rusty

Short Range Forecast

Some drizzle, heaviest during Thu night. Warm (max 26°C on Sat afternoon, min 18°C on Thu night). Wind will be generally light.

Days 5-7 Weather Summary

Mostly dry. Warm (max 30°C on Sun afternoon, min 16°C on Sun night). Winds decreasing (strong winds from the NE on Sun night, light winds from the SSE by Tue afternoon).

Thursday
16
Friday
17
Saturday
18
Sunday
19
Monday
20
Tuesday
21
Wed
22
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Night
AM
PM
Rating
(10 max)
0
0
0
1
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
Height Map
Wave
Height (m)
Direction
Period (s)
0.3
W
9
0.3
W
8
0.7
W
8
0.8
W
4
0.2
W
8
0.2
W
8
0.2
W
8
0.2
W
8
0.5
W
8
0.2
W
8
0.2
W
8
0.2
WNW
8
0.2
W
7
0.2
W
9
0.2
W
8
0.2
W
11
0.2
W
11
0.3
WNW
8
0.3
W
10
0.3
W
10
0.3
W
9
Wave Graph
Metric surfscale
Energy kJ
14
12
66
26
6
5
5
5
34
5
5
6
4
6
6
10
9
11
17
17
16
Wind (km/h)
10
NE
5
E
25
W
5
N
10
N
20
W
20
NE
5
ESE
25
W
20
NNE
20
ENE
15
NE
35
NE
25
NE
25
NE
25
NNE
20
E
15
NW
30
NE
25
E
15
NE
Wind State
off
glassy
cross-on
glassy
cross-off
cross-on
off
glassy
cross-on
off
off
off
off
off
off
off
cross-off
cross
off
cross-off
off
High Tide
6:59AM4.39m
7:18PM4.74m
7:44AM4.31m
8:02PM4.63m
8:28AM4.15m
8:46PM4.40m
9:11AM3.94m
9:29PM4.10m
9:54AM3.70m
10:14PM3.76m
10:41AM3.47m
11:05PM3.44m
11:38AM3.27m
Low Tide
00:45AM-0.09m
1:00PM0.06m
1:32AM-0.07m
1:46PM0.11m
2:18AM0.07m
2:31PM0.27m
3:03AM0.29m
3:17PM0.50m
3:48AM0.58m
4:05PM0.78m
4:36AM0.88m
4:57PM1.06m
5:27AM1.16m
5:55PM1.30m
clear
clear
clear
rain showers
cloud
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
6:30
6:31
6:31
6:33
6:35
6:35
6:37
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
10:06
10:05
10:04
10:02
10:02
10:01
10:00
10:00
 mm
1
Temp °C
24
22
24
23
20
25
25
23
26
28
24
30
28
21
28
26
22
27
27
21
28
Feels °C
22
23
22
21
20
22
21
22
22
23
19
27
20
14
20
18
17
23
22
16
24
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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 Penthievre Surf forecast

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

Penthievre is 26 km (16 miles) from the city of Lanester. If you plan a holiday in Morbihan - Brittany, look for hotels and other accommodation in Lanester. Lanester has rooms for a wide range of budgets as well as car hire and transport links.

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