France · Mayenne
Lac de Haute Mayenne
Mayenne, 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.
Sea temperature
Next 7 days, °C
Wave height
Next 7 days, metres
View as table
| Day | Sea temp (°C) | Wave height (m) |
|---|---|---|
| Wed 2 | 27.0 | 0.1 |
| Thu 3 | 26.5 | 0.1 |
| Fri 4 | 26.0 | 0.1 |
| Sat 5 | 26.0 | 0.1 |
| Sun 6 | 26.4 | 0.1 |
| Mon 7 | 26.9 | 0.1 |
| Tue 8 | 27.2 | 0.1 |
Water quality history
Official EEA classification, one rating per bathing season, 2015–2025 — real data reported by national authorities.
- 2015: Not classified2015
- 2016: Not classified2016
- 2017: Not classified2017
- 2018: Not classified2018
- 2019: Not classified2019
- 2020: Not classified2020
- 2021: Not classified2021
- 2022: Excellent2022
- 2023: Excellent2023
- 2024: Good2024
- 2025: Excellent2025
Excellent in the most recent season, and 4 of 4 classified years rated Excellent or Good.
- Excellent
- Good
- Sufficient
- Poor
- Not classified
View as table
| Year | Classification |
|---|---|
| 2015 | Not classified |
| 2016 | Not classified |
| 2017 | Not classified |
| 2018 | Not classified |
| 2019 | Not classified |
| 2020 | Not classified |
| 2021 | Not classified |
| 2022 | Excellent |
| 2023 | Excellent |
| 2024 | Good |
| 2025 | Excellent |
Typical sea temperature by month
Modeled estimatePlausible seasonal climatology derived from latitude, for illustration — not a measured average.
Monthly sea temperature
Typical range across the year, °C
View as table
| Month | Typical sea temp (°C) |
|---|---|
| Jan | 15 |
| Feb | 14 |
| Mar | 15 |
| Apr | 17 |
| May | 19 |
| Jun | 22 |
| Jul | 24 |
| Aug | 25 |
| Sep | 24 |
| Oct | 22 |
| Nov | 19 |
| Dec | 17 |
Location & nearby beaches
Nearby beaches
- Le Gue de Selle23 kmMayenne
- Grande Plage29 kmOrne
- Plan D'Eau D'Argentre33 kmMayenne
- 39 km
Distances calculated as straight-line (haversine) from official coordinates.
Getting there & around
- Easy by car — there's parking close to the beach.
- Bus stop: École, about ~1.0 km away.
Food, stays & town
- Nearest village: La Haie-Traversaine, about ~900 m away.
- 1 place to eat within 1 km Closest is Bistrot de la Haie, about ~830 m away.
What kind of beach is this?
This beach belongs to a small coastal village. It's usually calmer than a resort or town beach, though a popular village spot can still fill up on the best summer days.
Estimated from OpenStreetMap surroundings data (ODbL).
Is the water clean at Lac de Haute Mayenne?
Lac de Haute Mayenne is a lake bathing site with an official EU Bathing Water rating of Excellent for the 2025 season — the highest official classification under the EU bathing-water assessment. That annual classification comes from the EU Bathing Water Directive: national authorities test for two indicator bacteria, intestinal enterococci and E. coli, throughout the bathing season, then report the full-season results to the European Environment Agency (EEA) the following spring — the 2025 season's rating was published in spring 2026, and the 2026 season won't be rated 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. On site you'll find Parking. There's parking about ~220 m from the beach.
That rating has been consistent: every one of the 4 classified seasons on record has come back Excellent or Good. The most reliable swimming window here typically runs from July–September, with the sea usually at its warmest around August. Outside that window the water is cooler and often quieter. Water quality here has been improving: the rating moved from Good to Excellent in 2025. The nearest town, La Haie-Traversaine, is about ~900 m away.
That “Excellent” label comes from a full season of official water sampling, not a single test — it's one step on a four-point scale (Excellent, Good, Sufficient, Poor) reassessed once a year. Today's actual conditions can differ from the seasonal average, so for a live snapshot see the “Right now” and 7-day outlook panels above. There's 1 place to eat near the beach — Bistrot de la Haie, about ~830 m away.
Frequently asked questions
Should you swim at Lac de Haute Mayenne?
Lac de Haute Mayenne is rated Excellent for 2025 — the top EU Bathing Water classification — with 4 of 4 classified seasons rating Excellent or Good, so yes. Its rating has also been trending the right way, moving from Good to Excellent in 2025.
What's the current water temperature at Lac de Haute Mayenne?
Treat the ~27°C above as illustrative only — Lac de Haute Mayenne's live marine feed was down when this page was generated, and the figure will be replaced with a real reading automatically once it's back. That's the reading right off Mayenne. On the modeled climatology here, August usually runs warmest.
When does Lac de Haute Mayenne have the warmest water?
For the warmest water, aim for July–September — that's when the modeled sea temperature is typically at its best. That applies to the water around Mayenne. Within that window, August is typically the single warmest month.
Where does the water quality rating come from?
It's based on official water samples: authorities test for intestinal enterococci and E. coli through the season, then report the full-season results to the European Environment Agency each spring, which assigns one of four grades — Excellent, Good, Sufficient or Poor. A few national authorities, including Croatia's IZOR, also publish individual samples during the season itself, ahead of that annual report — that isn't yet available for Lac de Haute Mayenne.
What's nearby Lac de Haute Mayenne — parking, buses, or a ferry?
By car, it's easy — parking is right by the beach. By bus, the nearest stop is École, about ~1.0 km away. The nearest town is La Haie-Traversaine, about ~900 m away.