Surf Forecasts:
Larmor Plage surf forecast from 12 Sep 2026:
- Best quality surf: Sunday 13 Sep, 5AM (local time) - 3.5ft (1.0m), 12s period, W swell with glassy winds.
- Most powerful swell: Wednesday 16 Sep, 11PM (local time) - 5ft (1.5m), 11s period, WNW swell with 553 kJ wave energy.
- Next surfable swell (1★+): Saturday 12 Sep, 5AM (local time) - 3ft (0.9m), 8s period with W 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 Saturday (Sep 12) at 5AM. The primary swell is predicted to be 0.9m and 8s 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 1.5m 11s and forecast to arrive on Wednesday (Sep 16) at 11PM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.3m 6s period and expected on Tuesday (Sep 15) at 11PM.
| Wave Type | Time (CEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 5AM (Sat 12th Sep) | 3ft (0.9m) 8s |
| Best Surf | 5AM (Sun 13th Sep) | 3.5ft (1.0m) 12s |
| Most Powerful | 11PM (Wed 16th Sep) | 5ft (1.5m) 11s |
Table - best surf conditions forecast for Larmor Plage over the next 16 days.
The Lowdown
Alright folks, Rusty here. Let’s have a look at what’s on the cards for our local stretch.
Right now, we're not exactly firing. The first few days are pretty lackluster. We’ve got a little bump of swell from the west, but it’s weak, short-period stuff. There’s a window on Saturday the 12th morning at Larmor Plage where conditions are glassy, but with swell height only 3ft and a period under 8 seconds from the W, it’s pretty weak (combined energy 87). It’s surfable if you’re desperate for a splash, but nothing to get excited about.
Sunday the 13th morning actually cleans up nicely. The wind goes light and cross-offshore, and the swell bumps up a touch to 3ft from the W with a period of 11 seconds. This gives it a bit more shape and push (combined energy 242). It’s a better look for the beginner-friendly banks here, but it’s still pretty ordinary. Keep expectations in check.
The middle of next week turns a bit blowy. Winds freshen and swing cross-shore, making a mess of things. Tuesday the 15th and Wednesday the 16th have clean wind conditions in the mornings, but the swell is inconsistent and the energy is moderate at best. The standout for swell size doesn’t show up until much later.
Hold on for Monday the 21st of September. That morning, we get a classic setup. The wind goes glassy, calm as can be, with a solid groundswell from the WNW. Swell height hits 3ft, but the period jumps to a nice 13 seconds, giving it proper grunt (combined energy 296). It’s a long-period swell, which will wrap into Larmor Plage with some decent shape, and with glassy conditions, it’s going to be the cleanest session of the whole forecast. This is your call.
After that, things fade back to mediocrity. The following weekend (September 26-27) has a few moments of clean cross-off wind and moderate energy (306), but overall, it’s nothing special. The water temp is about average for this time of year, so no surprises there.
So to sum it up: if you’re keen, the best bet is the morning of Monday the 21st. That glassy groundswell is the one to set your alarm for. The rest of the run is mostly weak or messy.
Rusty
Short Range ForecastMostly dry. Warm (max 23°C on Mon afternoon, min 15°C on Fri night). Wind will be generally light. | Days 5-7 Weather SummarySome drizzle, heaviest during Thu afternoon. Warm (max 25°C on Tue afternoon, min 14°C on Tue night). Mainly fresh winds. | ||||||||||||||||||
Saturday 12 | Sunday 13 | Monday 14 | Tuesday 15 | Wednesday 16 | Thursday 17 | ||||||||||||||
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 8 | W 8 | W 8 | WNW 10 | W 11 | W 11 | W 10 | W 10 | W 9 | W 9 | W 8 | WNW 8 | WNW 7 | WNW 10 | WNW 10 | WNW 11 | WNW 10 | WNW 10 | WNW 9 |
Wave Graph  | |||||||||||||||||||
 kJ | 144 | 82 | 108 | 160 | 242 | 233 | 208 | 151 | 106 | 76 | 51 | 116 | 150 | 288 | 282 | 373 | 236 | 131 | 225 |
Wind (km/h) | |||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | glassy | cross | off | cross-off | cross-on | off | cross-on | cross-on | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross-off | cross | cross | cross-off |
High Tide | 6:08AM4.24m | 6:23PM4.46m | 6:41AM4.22m | 6:56PM4.32m | 7:11AM4.11m | 7:27PM4.09m | 7:41AM3.93m | 7:57PM3.80m | 8:11AM3.70m | 8:29PM3.48m | 8:43AM3.42m | 9:04PM3.16m | |||||||
Low Tide | 11:56PM-0.15m | 12:09PM-0.08m | 00:33AM-0.11m | 12:47PM-0.03m | 1:08AM0.04m | 1:23PM0.14m | 1:43AM0.29m | 2:00PM0.40m | 2:18AM0.60m | 2:38PM0.71m | 2:55AM0.94m | 3:21PM1.06m | 3:39AM1.28m | ||||||
 | | |  |  | | | | | | | | | | |  | |  | | |
 | — | 7:45 | — | — | 7:47 | — | — | 7:48 | — | — | 7:48 | — | — | 7:50 | — | — | 7:52 | — | — |
 | 8:35 | — | 8:32 | — | — | 8:30 | — | — | 8:29 | — | — | 8:27 | — | — | 8:24 | — | — | 8:22 | — |
mm | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 1 | — |
Temp °C | 22 | 16 | 19 | 19 | 19 | 21 | 22 | 20 | 23 | 23 | 22 | 25 | 17 | 16 | 21 | 18 | 18 | 19 | 17 |
Feels °C | 20 | 16 | 17 | 16 | 18 | 19 | 20 | 21 | 23 | 23 | 22 | 23 | 11 | 13 | 15 | 13 | 14 | 14 | 12 |
Swell 1 Height (m) Direction Period (s) | W 8 | W 8 | W 8 | WNW 10 | W 11 | W 11 | W 10 | W 10 | W 9 | W 9 | W 8 | WNW 11 | W 10 | WNW 10 | WNW 10 | WNW 11 | WNW 10 | WNW 10 | WNW 9 |
| kJ | 144 | 82 | 108 | 160 | 242 | 233 | 208 | 151 | 106 | 76 | 51 | 40 | 73 | 288 | 282 | 373 | 236 | 131 | 225 |
Swell 2 Height (m) Direction Period (s) | — | W 17 | W 15 | W 13 | — | — | NW 11 | NW 11 | NW 9 | W 14 | WNW 12 | — | — | NW 13 | W 12 | — | — | — | WNW 12 |
| kJ | — | 5 | 39 | 81 | — | — | 123 | 29 | 43 | 4 | 14 | — | — | 7 | 78 | — | — | — | 29 |
Swell 3 Height (m) Direction Period (s) | — | — | WNW 15 | — | — | — | — | — | — | W 13 | WNW 12 | — | — | — | — | — | — | — | — |
| kJ | — | — | 44 | — | — | — | — | — | — | 4 | 28 | — | — | — | — | — | — | — | — |
Wind waves Height (m) Direction Period (s) | NNE 2 | ENE 3 | — | NW 3 | — | — | — | — | — | — | — | WNW 8 | WNW 7 | — | — | — | — | W 4 | — |
| kJ | 1 | 1 | — | 1 | — | — | — | — | — | — | — | 116 | 150 | — | — | — | — | 9 | — |
Nearest Offshore or Glassy | |||||||||||||||||||
Distance (km) | 0 | 0 | 63 | 0 | 0 | 85 | 0 | 16 | 43 | 0 | 0 | 280 | 1 | 1 | 2 | 0 | 195 | 471 | 2 |
Best forecast wave conditions in Morbihan - Brittany | |||||||||||||||||||
Best forecast wave conditions in France | |||||||||||||||||||
Header Global | |||||||||||||||||||
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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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