Surf Forecasts:
Larmor Plage surf forecast from 16 Sep 2026:
- Best quality surf: Friday 18 Sep, 8AM (local time) - 3ft (0.9m), 16s period, W swell with offshore winds.
- Most powerful swell: Friday 18 Sep, 2PM (local time) - 5ft (1.6m), 14s period, W swell with 990 kJ wave energy.
- Next surfable swell (1★+): Wednesday 16 Sep, 11PM (local time) - 5ft (1.6m), 11s 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 Wednesday (Sep 16) at 11PM. The primary swell is predicted to be 1.6m and 11s period. The wind is predicted to be offshore as the swell arrives.
The most powerful waves expected at Larmor Plage in the next 16 days are 1.6m 14s and forecast to arrive on Friday (Sep 18) at 2PM. Winds are predicted to be cross-onshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 0.8m 4s period and expected on Wednesday (Sep 23) at 8AM.
| Wave Type | Time (CEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 11PM (Wed 16th Sep) | 5ft (1.6m) 11s |
| Best Surf | 8AM (Fri 18th Sep) | 3ft (0.9m) 16s |
| Most Powerful | 2PM (Fri 18th Sep) | 5ft (1.6m) 14s |
Table - best surf conditions forecast for Larmor Plage over the next 16 days.
The Lowdown
Alright, folks, Rusty here. Let’s talk about what’s happening at Larmor Plage.
We start off on Wednesday, the 16th of September with a clean 1.5m swell from the West, period around 9 seconds. The wind is light offshore, making for a nice morning. Water temp is about 66°, a touch above average for this time of year.
Thursday the 17th is a write-off with onshore winds and messy waves.
Here’s the real standout: Friday morning, the 18th of September. We’ve got a 1.5m groundswell from the WNW with a very long 13-second period. The energy is pumping. A light cross-offshore breeze will keep it clean. This is the best run of the forecast.
The weekend offers some smaller, clean windows. Sunday the 20th morning is especially nice with near-calm winds and clean 1.1m waves.
The following week goes quiet until Saturday the 26th of September. That afternoon is a gem: glassy conditions with a 1.1m groundswell. Real smooth.
Then we get a monster. On Wednesday the 30th of September, the swell jumps to 4.5m in the morning and 3.5m in the afternoon. The wind is offshore, but this is huge. For experts only, if that. The energy readings are off the charts, but it’s too much for this spot.
So to sum it up: Friday the 18th is your best bet for quality, clean waves. Saturday the 26th afternoon for a glassy, smaller session. The end of the month is big and heavy.
Rusty.
Short Range ForecastMostly dry. Warm (max 21°C on Wed afternoon, min 14°C on Wed morning). Wind will be generally light. | Days 4-6 Weather SummaryMostly dry. Warm (max 27°C on Mon afternoon, min 16°C on Sat morning). Wind will be generally light. | ||||||||||||||||||||
Wednesday 16 | Thursday 17 | Friday 18 | Saturday 19 | Sunday 20 | Monday 21 | Tuesday 22 | |||||||||||||||
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 | WNW 10 | WNW 11 | W 10 | W 10 | WNW 9 | WNW 13 | W 14 | WNW 13 | WNW 12 | WNW 11 | WNW 11 | WNW 11 | WNW 11 | WNW 11 | WNW 11 | WNW 12 | WNW 12 | WNW 11 | W 18 | W 16 |
Wave Graph  | |||||||||||||||||||||
 kJ | 405 | 598 | 460 | 296 | 326 | 302 | 713 | 849 | 492 | 303 | 325 | 308 | 292 | 292 | 254 | 214 | 179 | 142 | 126 | 164 | 822 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | off | cross-off | glassy | cross | cross | cross-off | cross-off | cross | cross-off | cross | cross | off | cross-off | cross-on | cross-off | cross-off | glassy | cross-off | cross-off | cross-off | cross-off |
High Tide | 8:11AM3.70m | 8:29PM3.48m | 8:43AM3.42m | 9:04PM3.16m | 9:22AM3.13m | 9:49PM2.84m | 10:19AM2.85m | 11:12PM2.60m | 12:23PM2.71m | 1:53AM2.64m | 2:22PM2.90m | 2:59AM2.89m | 3:12PM3.19m | 3:37AM3.17m | |||||||
Low Tide | 2:38PM0.71m | 2:55AM0.94m | 3:21PM1.06m | 3:39AM1.28m | 4:15PM1.38m | 4:40AM1.56m | 5:33PM1.60m | 6:08AM1.69m | 7:08PM1.60m | 7:38AM1.59m | 8:23PM1.39m | 8:42AM1.33m | 9:15PM1.08m | ||||||||
 | |  |  | |  | | | | | | | | | | | | | | | | |
 | 7:50 | — | — | 7:52 | — | — | 7:52 | — | — | 7:54 | — | — | 7:56 | — | — | 7:58 | — | — | 7:58 | — | — |
 | — | 8:24 | — | — | 8:22 | — | — | 8:20 | — | — | 8:17 | — | — | 8:15 | — | — | 8:14 | — | — | 8:12 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 16 | 21 | 19 | 17 | 17 | 18 | 16 | 17 | 16 | 17 | 18 | 18 | 17 | 22 | 23 | 19 | 27 | 26 | 20 | 28 | 25 |
Feels °C | 13 | 15 | 15 | 14 | 13 | 15 | 14 | 13 | 12 | 16 | 16 | 17 | 17 | 21 | 21 | 18 | 27 | 25 | 16 | 24 | 21 |
Swell 1 Height (m) Direction Period (s) | W 9 | WNW 12 | WNW 11 | W 10 | — | WNW 9 | WNW 13 | W 14 | WNW 13 | WNW 12 | WNW 11 | WNW 11 | WNW 11 | WNW 11 | WNW 11 | WNW 11 | WNW 12 | WNW 12 | WNW 11 | WNW 11 | W 16 |
| kJ | 405 | 57 | 460 | 167 | — | 302 | 713 | 849 | 492 | 303 | 325 | 308 | 292 | 292 | 254 | 214 | 179 | 142 | 126 | 164 | 822 |
Swell 2 Height (m) Direction Period (s) | — | — | — | — | — | W 17 | W 16 | — | — | — | — | — | — | — | — | — | ESE 4 | — | W 20 | W 18 | W 11 |
| kJ | — | — | — | — | — | 6 | 338 | — | — | — | — | — | — | — | — | — | 1 | — | 8 | 163 | 163 |
Swell 3 Height (m) Direction Period (s) | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | ESE 4 | — |
| kJ | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 2 | — |
Wind waves Height (m) Direction Period (s) | — | WNW 10 | — | W 10 | W 10 | — | — | — | — | — | — | — | — | — | NE 2 | E 4 | — | ENE 3 | E 4 | — | NE 4 |
| kJ | — | 598 | — | 296 | 326 | — | — | — | — | — | — | — | — | — | 1 | 6 | — | 3 | 9 | — | 15 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 0 | 63 | 0 | 112 | 121 | 0 | 0 | 112 | 0 | 2 | 74 | 0 | 0 | 2 | 7 | 10 | 0 | 7 | 23 | 0 | 7 |
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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