Larmor Plage Surf Break

Lat Long: 47.70° N 3.39° W

Larmor Plage Surf Forecast and Surf Report

Issued: 7 am 25 Aug 2026 (local time)

Forecast update in  hr  min

Today's Larmor Plage sea temperature is
18.3°C
0.1° 

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


Larmor Plage surf forecast from 25 Aug 2026:

  • Best quality surf: Sunday 30 Aug, 5AM (local time) - 5.5ft (1.7m), 8s period, WSW swell with glassy winds.
  • Most powerful swell: Friday 28 Aug, 5PM (local time) - 10ft (3.0m), 8s period, W swell with 1,158 kJ wave energy.
  • Next surfable swell (1★+): Friday 28 Aug, 2AM (local time) - 3.5ft (1.1m), 8s period with WSW swell.

Best Forecast Surf Conditions for Larmor Plage this week:

The surf forecast for Larmor Plage over the next 16 days: The first swell (rated 1 star or higher) is forecast to arrive on Friday (Aug 28) at 2AM. The primary swell is predicted to be 1.1m and 8s period with a secondary swell of 0.3m and 10s. The wind is predicted to be cross-offshore as the swell arrives.

The most powerful waves expected at Larmor Plage in the next 16 days are 3.0m 8s and forecast to arrive on Friday (Aug 28) at 5PM. Winds are predicted to be cross-shore at the time the swell arrives.

Wave TypeTime (CEST) & Date Wave Height & Period
Next good surf (1 star+) 2AM (Fri 28th Aug)3.5ft (1.1m) 8s
Best Surf 5AM (Sun 30th Aug)5.5ft (1.7m) 8s
Most Powerful 5PM (Fri 28th Aug)10ft (3.0m) 8s

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


The Lowdown

Alright, Rusty here. Let’s have a look at what’s shaking for the next couple of weeks.

Honestly, the outlook is a tough one. We’ve got a long, slow start with no real surf on the cards for a while. The first few days are basically a write-off, with tiny, weak swell and winds that just won’t play nice. This Larmor Plage zone is looking pretty flat and messy right out of the gate.

We start off Tuesday, August 25th, with a weak 2ft SW swell at a short 8 seconds. Combined energy is only 52 – that’s basically nothing. Wind is cross-on, so it’s choppy and poor. This is the pattern for the next several days: small, short-period swell and onshore or cross-onshore winds. Wednesday morning offers a 2ft SW swell, still under 8 seconds, and though the wind is offshore from the SSE, the wave comment says it’s still poor. Thursday bumps up to 4ft from the WSW, but again, cross-onshore wind and fairly choppy. Friday the 28th brings 6ft from the WSW, but that’s with a 25 km/h cross-onshore wind, so it’s just a choppy mess. Saturday the 29th has the biggest swell of the early period, 8ft from the WSW, but with a fresh 30 km/h cross-onshore wind and lumpy conditions, it’s not for the faint of heart or anyone looking for a clean wave.

After that, the swell drops back down. Sunday the 30th has a 3ft WNW swell that finally shows a longer period of 10 seconds, and a light cross-onshore breeze, but the report calls it marginal at best. You might get a couple of rideable ones, but it’s low quality.

The best chance for anything decent comes on Monday, September 7th. There’s a 6ft WNW groundswell (period 10 seconds) and the wind finally goes offshore from the N at 25 km/h, giving us clean conditions. The combined energy jumps to 970 (moderate) – easily the best pulse of the whole forecast. This is the real standout, but it’s over a week away and long-range forecasts can be fickle. For the experienced crew, that Monday afternoon session could have some nice lines rolling in.

Other than that, there’s a similar clean window on the morning of Sunday, September 6th with a 6ft W swell (10 seconds) and a WNW cross-offshore breeze, but the energy is a bit less (573) and it’s still a marginal call. Wednesday, September 2nd also has a 6ft W swell (10 seconds, 674 energy) and a light cross-shore wind, but it’s listed as marginal. The 6ft swell that afternoon gets chopped up by onshore winds again.

Overall, this is a pretty grim run for Larmor Plage. Most of the 16 days are poor or marginal, with the main hope pinned on that September 7th window. The water temp is about average for the time of year at 65°. Hang tight, and check back closer to that Monday.

Rusty.

Short Range Forecast

Moderate rain (total 12mm), heaviest on Wed night. Warm (max 21°C on Tue afternoon, min 17°C on Thu night). Wind will be generally light.

Days 4-6 Weather Summary

Light rain (total 8mm), mostly falling on Fri afternoon. Warm (max 20°C on Sun afternoon, min 17°C on Fri morning). Winds decreasing (fresh winds from the W on Fri afternoon, calm by Sat night).

Tuesday
25
Wednesday
26
Thursday
27
Friday
28
Saturday
29
Sunday
30
Monday
31
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
1
0
0
0
0
0
2
1
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)
0.5
SW
8
0.4
SW
8
0.4
WNW
10
0.7
SW
6
0.4
WNW
9
0.6
SW
6
1.2
WSW
7
1.3
WSW
8
1.1
WSW
8
1.8
WSW
6
3
W
8
2
W
8
2.4
WSW
7
2.2
WSW
8
1.8
WSW
8
1
WNW
10
1
WNW
9
1.8
W
7
1.7
W
8
1.5
W
9
1.4
W
10
Wave Graph
Metric surfscale
Energy kJ
34
23
32
38
32
26
138
173
128
241
1158
488
594
587
362
193
185
280
400
326
362
Wind (km/h)
15
SW
20
SW
10
SW
15
SSE
15
ESE
15
SW
15
WSW
15
SSW
5
WNW
25
WSW
35
W
20
WSW
30
SW
35
SW
5
W
10
SW
25
WSW
30
W
25
WNW
30
W
15
W
Wind State
cross-on
cross-on
cross-on
on
cross
cross-on
cross-on
cross-on
cross-off
cross-on
cross
cross-on
cross-on
cross-on
cross
cross-on
cross-on
cross
cross-off
cross
cross
High Tide
4:21PM3.50m
4:40AM3.44m
4:53PM3.76m
5:10AM3.66m
5:22PM3.99m
5:39AM3.85m
5:52PM4.17m
6:09AM4.00m
6:22PM4.27m
6:39AM4.08m
6:53PM4.29m
7:11AM4.09m
7:26PM4.22m
Low Tide
9:58AM1.02m
10:26PM0.81m
10:37AM0.74m
11:02PM0.55m
11:11AM0.50m
11:35PM0.32m
11:44AM0.31m
00:07AM0.17m
12:17PM0.19m
00:39AM0.09m
12:50PM0.14m
1:12AM0.10m
1:24PM0.18m
1:46AM0.20m
clear
part cloud
part cloud
part cloud
light rain
thunderstorm
thunderstorm
cloud
thunderstorm
clear
thunderstorm
part cloud
light rain
rain showers
rain showers
part cloud
cloud
clear
cloud
part cloud
clear
<span class="translation_missing" title="translation missing: en.weather_tables.sunrise">Sunrise</span>
7:20
7:22
7:24
7:24
7:26
7:28
7:28
<span class="translation_missing" title="translation missing: en.weather_tables.sunset">Sunset</span>
9:07
9:07
9:05
9:02
9:00
8:59
8:57
 mm
2
8
1
1
3
2
2
1
Temp °C
20
21
19
20
21
20
19
20
19
19
19
19
18
19
19
19
20
19
17
18
18
Feels °C
19
19
18
20
19
18
18
18
18
16
15
15
14
16
19
20
19
15
12
14
14
  • 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 Larmor Plage Surf forecast

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

Larmor Plage is 5 km (3 miles) from Lorient. If you plan a holiday in Morbihan - Brittany, look for hotels and other accommodation in Lorient. Lorient has rooms for a wide range of budgets as well as car hire and transport links.

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