Plage de Lost-Marc'h
Plage de Lost-Marc'h is a clothing-optional beach in Finistère, France. The sea is warmest in August at about 16°C (61°F) and coolest in February (10°C (50°F)). Average air temperatures peak in July at 18°C (64°F). There are 4 other naturist places within 50 km (31 mi), the closest being Plage de Perzic (24 km (15 mi)).
Weather and water temperature at Plage de Lost-Marc'h
Tap a month. Averages: air 2001–2025 (NASA POWER), sea 1991–2020 (NOAA OISST).
| Month | Air | Sea | Rain |
|---|---|---|---|
| January | 8°C | 11°C | 112 mm |
| February | 8°C | 10°C | 92 mm |
| March | 9°C | 10°C | 72 mm |
| April | 11°C | 11°C | 57 mm |
| May | 13°C | 13°C | 57 mm |
| June | 16°C | 15°C | 55 mm |
| July | 18°C | 16°C | 55 mm |
| August | 18°C | 16°C | 57 mm |
| September | 16°C | 16°C | 46 mm |
| October | 14°C | 15°C | 98 mm |
| November | 11°C | 14°C | 115 mm |
| December | 9°C | 12°C | 117 mm |
Not sure what the numbers mean? Here is how warm is warm enough to swim.
Visiting
- Coordinates: 48.20972, -4.55398 · OpenStreetMap
- Local law: is public nudity legal in France?
- Before you go, read our nude beach etiquette guide.
- First time? Read our guide to your first time at a nude beach.
Naturist places near Plage de Lost-Marc'h
- 1Plage de Perzic nude beach · FinistèreClothing optionalSea 16°C in August
- 2ANF Roz Pella nudist resort · Finistère · best March to SeptemberOfficial
- 3Plage des Charrettes nude beach · FinistèreToleratedSea 16°C in August
- 4Plage Treguennec nude beach · FinistèreClothing optionalSea 18°C in August
- 5Dunes de Kéremma nude beach · FinistèreClothing optionalSea 15°C in August
- 6Plage de Kerler nude beach · FinistèreClothing optionalSea 18°C in August
- 7Plage de Keremma nude beach · FinistèreClothing optionalSea 15°C in August
- 8Plage naturiste Phoenix nude beach · FinistèreCustomarySea 18°C in August
Status labels: Official · Naturist only · Clothing optional · Tolerated · Customary · Listed · Prohibited · Closed. Statuses come from open data and are not yet verified in person.
Frequently asked questions
Is Plage de Lost-Marc'h clothing optional?
Plage de Lost-Marc'h is listed as "clothing optional" according to OpenStreetMap (nudism=allowed). Rules can change, and clothing-optional zones are often only part of a beach, so look for signs on arrival and follow local rules. NudistMap has not yet verified this status in person. You can check what applies in France before you go.
How warm is the water at Plage de Lost-Marc'h?
Long-term sea surface temperatures (NOAA OISST, 1991–2020) range from 10°C (50°F) to 16°C (61°F) in August. Water at the shore can be a few degrees different.
What other naturist places are near Plage de Lost-Marc'h?
The closest are Plage de Perzic (24 km (15 mi)), ANF Roz Pella (29 km (18 mi)) and Plage des Charrettes (29 km (18 mi)).
Sources
Status from OpenStreetMap (nudism=allowed). Not yet verified against an official source; local rules may have changed. Data updated 2026-10-31. All data sources and licenses. © OpenStreetMap contributors.