Surf Forecasts:
Larmor Plage surf forecast from 20 Aug 2026:
- Best quality surf: Friday 21 Aug, 2AM (local time) - 4.5ft (1.4m), 9s period, WNW swell with cross-offshore winds.
- Most powerful swell: Tuesday 25 Aug, 8PM (local time) - 10ft (3.0m), 9s period, SW swell with 1,580 kJ wave energy.
- Next surfable swell (1★+): Friday 21 Aug, 2AM (local time) - 4.5ft (1.4m), 9s period with WNW 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 21) at 2AM. The primary swell is predicted to be 1.4m and 9s period. 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 9s and forecast to arrive on Tuesday (Aug 25) at 8PM. Winds are predicted to be cross-shore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.0m 4s period and expected on Monday (Aug 24) at 2AM.
| Wave Type | Time (CEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 2AM (Fri 21st Aug) | 4.5ft (1.4m) 9s |
| Best Surf | 2AM (Fri 21st Aug) | 4.5ft (1.4m) 9s |
| Most Powerful | 8PM (Tue 25th Aug) | 10ft (3.0m) 9s |
Table - best surf conditions forecast for Larmor Plage over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let’s get straight into it for our local stretch.
We’ve got a pretty grim run ahead for the next couple of weeks, I’m not gonna lie. The start of the period is a total write-off, so don’t bother paddling out until we hit the last few days of the month. The wind is ugly, the swell is messy, and it’s just not worth the squeeze.
The first real chance to wet a line arrives on 31 August. There’s a pulse of energy showing up, but it comes with a big caveat. We’ll see a solid 7ft to 8ft swell from the W to WNW, with a very long period of 12 seconds. That’s proper groundswell energy, and the combined energy numbers are massive (1716 on Monday morning, 2870 on Monday afternoon). But, the wind is gonna be a cross-shore mess at 12 to 16 mph, and the conditions are only rated as marginal. It’s a powerful swell, but it’s gonna be lumpy and pretty hard to manage. This is big, powerful stuff that’s really only for experienced surfers who know the paddle out. The tide could be a factor, too. It’s a tease, but not the day to call in sick for.
Then, we get a bit of a reprieve. The first few days of September offer a glimmer of hope. On 1 September, the afternoon shows a drop in size to 5ft from the west, but the wind shifts to a cross-off from the NW at 12 mph. The energy is still moderate at 572, and it’s clean. It’s a much better window than the days before.
The best window of the whole forecast, though, might just be the morning of 2 September. We’ve got a 4ft swell from the west, with a clean 8-second period. The wind is a light NW cross-off at just 6 mph, making for glassy conditions. The combined energy is low (171), so it’s not a beast, but it’s the most user-friendly and cleanest surf we’ll see. For a beginner-intermediate spot like Larmor Plage, this is the one to aim for. The water is sitting at 68°, which is a touch warmer than usual for this time of year, so that’s a bonus.
After that, it fades out again. The wind picks up and the swell drops, leaving us with nothing much to get excited about for the rest of the second week.
So, to be straight with you: the only standout is the morning of 2 September. It’s not a massive day, but it’s the cleanest, most surfer-friendly wave we’re going to get. The big swell on the 31st is powerful but messy, and only for the brave. Keep your eyes on the forecasts, but for now, don’t get your hopes up for anything magic.
Rusty.
Short Range ForecastLight rain (total 3mm), mostly falling on Thu morning. Warm (max 22°C on Sat afternoon, min 14°C on Fri night). Winds decreasing (fresh winds from the WSW on Thu afternoon, light winds from the N by Fri night). | Days 4-6 Weather SummaryLight rain (total 7mm), mostly falling on Mon afternoon. Warm (max 27°C on Sun afternoon, min 15°C on Sun morning). Winds decreasing (fresh winds from the E on Mon morning, calm by Tue morning). | ||||||||||||||||||||
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 | |
Swell Height Map |  |  |  |  |  |  |  | ||||||||||||||
Wave Height (m) Direction Period (s) | W 9 | W 9 | WNW 9 | W 10 | W 9 | W 8 | W 8 | W 10 | W 9 | E 5 | WSW 10 | WSW 10 | ESE 5 | WSW 9 | SSE 5 | SW 9 | SW 8 | SW 8 | SW 9 | SW 8 | WSW 7 |
Wave Graph  | |||||||||||||||||||||
 kJ | 404 | 431 | 355 | 273 | 281 | 140 | 50 | 45 | 25 | 51 | 33 | 37 | 53 | 32 | 27 | 115 | 993 | 868 | 763 | 321 | 334 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross | cross | cross-off | cross | cross | off | cross-off | cross-on | cross-off | cross-off | cross-off | cross-off | cross | cross | on | on | cross-on | on | cross-on | cross-on | cross-off |
High Tide | 10:15AM3.08m | 10:44PM2.87m | 11:20AM2.85m | 00:18AM2.68m | 1:21PM2.79m | 2:24AM2.73m | 2:54PM2.96m | 3:27AM2.95m | 3:44PM3.22m | 4:08AM3.19m | 4:21PM3.50m | 4:40AM3.44m | 4:53PM3.76m | ||||||||
Low Tide | 5:00PM1.33m | 5:28AM1.48m | 6:14PM1.53m | 6:48AM1.60m | 7:39PM1.53m | 8:09AM1.52m | 8:51PM1.36m | 9:11AM1.29m | 9:44PM1.09m | 9:58AM1.02m | 10:26PM0.81m | 10:37AM0.74m | 11:02PM0.55m | ||||||||
 |  |  | | |  |  |  | | | | | |  |  | |  | | | |  | |
 | 7:13 | — | — | 7:16 | — | — | 7:16 | — | — | 7:18 | — | — | 7:20 | — | — | 7:20 | — | — | 7:22 | — | — |
 | — | — | 9:17 | — | — | 9:15 | — | — | 9:14 | — | — | 9:12 | — | — | 9:09 | — | — | 9:07 | — | — | 9:07 |
mm | 2 | — | — | — | — | 1 | — | — | — | — | — | — | — | 2 | 4 | — | 1 | — | 3 | 1 | — |
Temp °C | 19 | 20 | 19 | 18 | 20 | 20 | 17 | 22 | 21 | 20 | 27 | 27 | 21 | 27 | 24 | 20 | 21 | 20 | 19 | 20 | 19 |
Feels °C | 15 | 15 | 14 | 14 | 16 | 18 | 14 | 20 | 18 | 13 | 21 | 21 | 14 | 20 | 25 | 19 | 17 | 18 | 17 | 17 | 18 |
Swell 1 Height (m) Direction Period (s) | — | S 14 | WNW 9 | W 10 | — | W 8 | W 8 | W 10 | W 9 | W 9 | WSW 10 | WSW 10 | WSW 9 | ESE 4 | SSE 5 | S 4 | WNW 11 | WNW 10 | WNW 9 | SW 8 | WNW 12 |
| kJ | — | 4 | 355 | 273 | — | 140 | 50 | 45 | 25 | 13 | 33 | 37 | 32 | 12 | 19 | 9 | 11 | 19 | 16 | 321 | 27 |
Swell 2 Height (m) Direction Period (s) | — | — | — | — | — | S 16 | WNW 8 | NW 8 | WNW 7 | NW 7 | NW 7 | W 6 | SW 12 | WSW 9 | WSW 8 | WNW 11 | — | — | — | WNW 9 | — |
| kJ | — | — | — | — | — | 5 | 23 | 14 | 5 | 2 | 2 | 1 | 6 | 32 | 27 | 12 | — | — | — | 16 | — |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | ESE 3 | S 14 | W 12 | — | W 10 | — | SW 11 | W 9 | — | — | — | — | W 13 | — |
| kJ | — | — | — | — | — | — | — | 1 | 4 | 3 | — | 2 | — | 5 | 2 | — | — | — | — | 4 | — |
Wind waves Height (m) Direction Period (s) | W 9 | W 9 | — | — | W 9 | NNE 3 | ENE 3 | — | ENE 4 | E 5 | ESE 5 | E 4 | ESE 5 | — | SSE 5 | SW 9 | SW 8 | SW 8 | SW 9 | — | WSW 7 |
| kJ | 404 | 431 | — | — | 281 | 3 | 3 | — | 15 | 51 | 26 | 34 | 53 | — | 27 | 115 | 993 | 868 | 763 | — | 334 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 63 | 240 | 0 | 63 | 295 | 0 | 9 | 63 | 205 | 293 | 94 | 304 | 301 | 43 | 105 | 21 | 244 | 81 | 108 | 63 | 0 |
Best forecast wave conditions in Morbihan - Brittany | |||||||||||||||||||||
Best forecast wave conditions in France | |||||||||||||||||||||
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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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