Surf Forecasts:
Larmor Plage surf forecast from 15 Sep 2026:
- Best quality surf: Friday 18 Sep, 8AM (local time) - 5ft (1.6m), 10s period, WNW swell with cross-offshore winds.
- Most powerful swell: Friday 18 Sep, 11AM (local time) - 6ft (1.9m), 17s period, W swell with 2,097 kJ wave energy.
- Next surfable swell (1★+): Wednesday 16 Sep, 2AM (local time) - 4.5ft (1.4m), 8s 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 2AM. The primary swell is predicted to be 1.4m 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 1.9m 17s and forecast to arrive on Friday (Sep 18) at 11AM. Winds are predicted to be cross-offshore at the time the swell arrives. The largest open ocean swell (not directed at the beach) is 1.6m 6s period and expected on Tuesday (Sep 15) at 8PM.
| Wave Type | Time (CEST) & Date | Wave Height & Period |
|---|---|---|
| Next good surf (1 star+) | 2AM (Wed 16th Sep) | 4.5ft (1.4m) 8s |
| Best Surf | 8AM (Fri 18th Sep) | 5ft (1.6m) 10s |
| Most Powerful | 11AM (Fri 18th Sep) | 6ft (1.9m) 17s |
Table - best surf conditions forecast for Larmor Plage over the next 16 days.
The Lowdown
Alright, let me break it down for you here at Larmor Plage. The water is sittin' at 66°F, which is a touch warmer than usual for this time of year – not a bad way to start.
We’ve got a real quiet start with almost nothing rideable for the first couple of days. Tuesday the 15th is flat with some clouds and poor surf, so don't even bother.
Wednesday the 16th morning, the swell finally picks up a bit to about 5ft from the WNW with a period of 10 seconds. The wind is offshore, which is clean. The combined energy reaches 435 (moderate energy). It’s a solid window for a beginner or intermediate session at Larmor Plage, but it’s not a standout.
Thursday the 17th and Friday morning the 18th – here’s our big highlight. Friday morning the 18th, we see a jump to 6ft swell from the W with a very long period of 17 seconds. The combined energy is 2097 (strong wave energy). The wind is cross-offshore and only a gentle breeze. That’s a big groundswell, so the waves will have real punch and shape, but a period that long can make a beach break like Larmor Plage a bit straight and tricky. Still, for experienced surfers, this is the best on offer with excellent conditions. It’s the standout session across the whole forecast.
From Saturday the 19th through to Tuesday the 24th, surf drops back way down. We’re looking at 2ft to 3ft stuff with moderate cross-shore winds, hardly worth suiting up. Expect a boring run for several days there.
Late in the window, around Saturday the 26th September, another pulse shows up in the morning with 6ft swell from WSW and a long period of 17 seconds, combined energy 1738, but the cross-shore wind and moderate chop keep it marginal. The afternoon improves to 6ft from the W with 15 seconds period, glassy conditions – that could shape up alright for the more experienced crew, but it’s a distant prospect, so keep an eye on it.
If you’re a beginner, the bigger days like Friday the 18th are well over 5ft, so give it a miss. For the kite surfers, the days with moderate cross-shore wind and solid swell – like Thursday the 17th or Saturday afternoon the 26th – look way more inviting for flying than paddling.
Overall, don’t hold your breath this week. The real deal is Friday morning the 18th with that clean, powerful groundswell.
Rusty.
Short Range ForecastSome drizzle, heaviest during Thu afternoon. Warm (max 23°C on Tue afternoon, min 14°C on Wed morning). Winds decreasing (fresh winds from the NW on Tue afternoon, light winds from the WNW by Wed night). | Days 4-6 Weather SummaryMostly dry. Warm (max 24°C on Sun afternoon, min 15°C on Fri morning). Wind will be generally light. | ||||||||||||||||||||
Tuesday 15 | Wednesday 16 | Thursday 17 | Friday 18 | Saturday 19 | Sunday 20 | Monday 21 | |||||||||||||||
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 8 | W 8 | WNW 8 | WNW 10 | W 10 | WNW 11 | W 10 | W 10 | WNW 9 | W 17 | W 15 | WNW 13 | W 12 | W 11 | WNW 10 | WNW 10 | WNW 10 | WNW 10 | W 14 | WNW 13 | WNW 12 |
Wave Graph  | |||||||||||||||||||||
 kJ | 51 | 137 | 238 | 435 | 584 | 460 | 296 | 426 | 549 | 2097 | 1430 | 1077 | 505 | 364 | 236 | 218 | 163 | 128 | 138 | 269 | 186 |
Wind (km/h) | |||||||||||||||||||||
Wind State on-shore cross-onshore cross-shore cross-offshore off-shore glassy | cross-off | cross-off | cross-off | off | cross-off | cross-off | cross | cross | cross-off | cross-off | cross | cross | cross | cross | cross-off | cross-off | cross-off | cross-off | cross-off | cross | cross-off |
High Tide | 7:57PM3.80m | 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 | ||||||||
Low Tide | 2:00PM0.40m | 2:18AM0.60m | 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 | ||||||||
 | |  |  | |  |  |  | | | | | | | | | | | | | | |
 | 7:48 | — | — | 7:50 | — | — | 7:52 | — | — | 7:52 | — | — | 7:54 | — | — | 7:56 | — | — | 7:58 | — | — |
 | — | 8:27 | — | — | 8:24 | — | — | 8:22 | — | — | 8:20 | — | — | 8:17 | — | — | 8:15 | — | — | 8:14 | — |
mm | — | — | — | — | — | — | — | 1 | — | — | — | — | — | — | — | — | — | — | — | — | — |
Temp °C | 20 | 23 | 19 | 16 | 21 | 19 | 17 | 18 | 18 | 17 | 18 | 19 | 18 | 18 | 18 | 19 | 24 | 24 | 18 | 24 | 23 |
Feels °C | 18 | 18 | 14 | 13 | 16 | 14 | 13 | 14 | 14 | 14 | 14 | 18 | 15 | 15 | 15 | 19 | 22 | 22 | 16 | 23 | 22 |
Swell 1 Height (m) Direction Period (s) | W 8 | WNW 11 | — | WNW 10 | WNW 12 | WNW 11 | W 10 | — | WNW 9 | W 17 | W 15 | WNW 13 | W 12 | W 11 | WNW 10 | WNW 10 | WNW 10 | WNW 10 | WNW 10 | WNW 13 | WNW 12 |
| kJ | 51 | 39 | — | 435 | 57 | 460 | 167 | — | 549 | 2097 | 1430 | 1077 | 505 | 364 | 236 | 218 | 163 | 128 | 100 | 269 | 186 |
Swell 2 Height (m) Direction Period (s) | WNW 12 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | W 15 | W 14 | ESE 4 | — |
| kJ | 13 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 39 | 138 | 2 | — |
Swell 3 Height (m) Direction Period (s) | W 9 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | WNW 12 | ESE 3 | — |
| kJ | 2 | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | — | 29 | 1 | — |
Wind waves Height (m) Direction Period (s) | — | W 8 | WNW 8 | — | W 10 | — | W 10 | W 10 | WNW 9 | — | W 16 | W 13 | — | W 11 | — | — | — | ENE 3 | E 4 | — | ENE 2 |
| kJ | — | 137 | 238 | — | 584 | — | 296 | 426 | 340 | — | 1074 | 663 | — | 255 | — | — | — | 5 | 10 | — | 1 |
Nearest Offshore or Glassy | |||||||||||||||||||||
Distance (km) | 63 | 121 | 0 | 0 | 1 | 0 | 195 | 240 | 0 | 0 | 112 | 181 | 98 | 112 | 0 | 0 | 0 | 0 | 0 | 1 | 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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