France · Hautes-Alpes
Lac du Casset
Hautes-Alpes, France
On the beach
Right now
Sample dataIllustrative conditions — the live Open-Meteo marine feed wasn't reachable, so these are deterministic placeholder values that will be replaced automatically once the feed is available.
7-day outlook
Sample dataModeled placeholder forecast for demonstration — will be replaced by a live marine-weather feed.
Water temperature
Next 7 days, °C
Wave height
Next 7 days, metres
View as table
| Day | Water temp (°C) | Wave height (m) |
|---|---|---|
| Wed 2 | 27.5 | 0.1 |
| Thu 3 | 28.0 | 0.1 |
| Fri 4 | 28.0 | 0.1 |
| Sat 5 | 27.6 | 0.1 |
| Sun 6 | 27.1 | 0.1 |
| Mon 7 | 26.9 | 0.1 |
| Tue 8 | 27.1 | 0.1 |
Typical water temperature by month
Modeled estimatePlausible seasonal climatology derived from latitude, for illustration — not a measured average.
Monthly water temperature
Typical range across the year, °C
View as table
| Month | Typical water temp (°C) |
|---|---|
| Jan | 15 |
| Feb | 15 |
| Mar | 15 |
| Apr | 17 |
| May | 20 |
| Jun | 23 |
| Jul | 25 |
| Aug | 26 |
| Sep | 25 |
| Oct | 23 |
| Nov | 20 |
| Dec | 17 |
Location & nearby beaches
Nearby beaches
- Plan D'Eau Du Pontillas5.9 kmHautes-Alpes
- Plage Du Lac de la Roche de Rame27 kmHautes-Alpes
- Plan D'Eau Des Oudins32 kmSavoie
- Plan D'Eau Des Iscles - Cote Route Nationale35 kmHautes-Alpes
Distances calculated as straight-line (haversine) from official coordinates.
How do you get to Lac du Casset?
- Easy by car — there's parking close to the beach.
- Bus stop: Le Casset, about ~880 m away.
Food, stays & town
- Nearest village: Le Monêtier-les-Bains, about ~1.4 km away.
- 11 places to stay mapped nearby Closest is Camping des Deux Glaciers, about ~260 m away.
- 2 shops nearby, the closest about ~1.2 km away
What kind of beach is this?
This beach sits in a built-up resort setting, with hotels, restaurants and services clustered around it — a full-service stretch of coast that tends to be busy in peak season and quieter outside it.
Estimated from OpenStreetMap surroundings data (ODbL).
- Full-service days
Is the water clean at Lac du Casset?
Thinking of swimming at Lac du Casset? The short answer: its official EU Bathing Water rating for 2025 is Not classified — not enough samples in this year to assign an official rating. That rating is set once a year under the EU Bathing Water Directive, from a full season of testing for intestinal enterococci and E. coli reported to the European Environment Agency the following spring, so the 2025 season's grade appeared in spring 2026 and the 2026 season won't be graded until spring 2027. In addition to that yearly rating, some national authorities — for Croatia, the national environmental authority — publish individual water sample results during the season itself, ahead of the annual report. There's parking about ~90 m from the beach.
Lac du Casset does not yet have enough classified seasons to describe a long-run trend. If you're timing a visit around water temperature rather than crowds, July–September is the safest bet, with August typically the peak — expect cooler, calmer water either side of that stretch. The nearest town, Le Monêtier-les-Bains, is about ~1.4 km away.
“Not classified” is one point on a four-step scale — Excellent, Good, Sufficient or Poor — assigned once per year from that season's water samples, not a live reading. It describes how the site performs on average across the season, not the exact water quality this afternoon; for day-to-day water conditions, see the “Right now” and 7-day outlook panels above.