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 | 26.2 | 0.5 |
| Thu 3 | 26.0 | 0.5 |
| Fri 4 | 25.5 | 0.5 |
| Sat 5 | 25.1 | 0.5 |
| Sun 6 | 25.0 | 0.5 |
| Mon 7 | 25.3 | 0.5 |
| Tue 8 | 25.8 | 0.5 |
Water quality history
Official EEA classification, one rating per bathing season, 2015–2025 — real data reported by national authorities.
- 2015: Good2015
- 2016: Sufficient2016
- 2017: Sufficient2017
- 2018: Good2018
- 2019: Good2019
- 2020: Good2020
- 2021: Good2021
- 2022: Good2022
- 2023: Good2023
- 2024: Good2024
- 2025: Good2025
Good in the most recent season, and 9 of 11 classified years rated Excellent or Good.
- Excellent
- Good
- Sufficient
- Poor
- Not classified
View as table
| Year | Classification |
|---|---|
| 2015 | Good |
| 2016 | Sufficient |
| 2017 | Sufficient |
| 2018 | Good |
| 2019 | Good |
| 2020 | Good |
| 2021 | Good |
| 2022 | Good |
| 2023 | Good |
| 2024 | Good |
| 2025 | Good |
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
- 28 km
- Grande Plage de Tuffe29 kmSarthe
- 34 km
- Plan D'Eau de Lavare40 kmSarthe
Distances calculated as straight-line (haversine) from official coordinates.
Getting there & around
- Easy by car — there's parking close to the beach.
- Bus stop: Docteur Godard, about ~900 m away.
Food, stays & town
- Nearest village: Mamers, about ~900 m away.
- 15 places to eat within 1 km Closest is Mage Malte, about ~540 m away.
- 2 places to stay mapped nearby Closest is Camping des portes du Perche, about ~130 m away.
- 4 shops nearby, the closest about ~780 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).
- Families
- Water sports
Is the water clean at Plan D'Eau de Mamers?
Plan D'Eau de Mamers sits on a stretch of coast classed as a lake bathing site, carrying an official EU Bathing Water rating of Good for the 2025 season. Under the EU Bathing Water Directive, national authorities test for intestinal enterococci and E. coli through the season and report the results the following spring — the 2025 rating was published in spring 2026, and 2026's won't follow 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. It sits in Sarthe. There's parking about ~220 m from the beach.
Over the 11 classified seasons on record, 9 have come back Excellent or Good — a track record worth checking each year rather than assuming. If you're timing a visit around water temperature rather than crowds, July–September is the safest bet, with August typically the peak — expect a cooler, calmer sea either side of that stretch. The nearest town, Mamers, is about ~900 m away.
“Good” 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 sea conditions, see the “Right now” and 7-day outlook panels above. There are 15 places to eat within a kilometre — Mage Malte is the closest, about ~540 m away.
Frequently asked questions
Should you swim at Plan D'Eau de Mamers?
Plan D'Eau de Mamers passes comfortably — its 2025 EU Bathing Water rating is Good, and 9 of 11 classified seasons have rated Excellent or Good. It's also held steady at Good for 8 straight years.
What temperature is the sea at Plan D'Eau de Mamers right now?
The figure above (about 26°C) is placeholder data — the live marine-weather feed wasn't reachable when this page was built, and the real reading will appear automatically once it is. That's the reading right off Sarthe. On the modeled climatology here, August usually runs warmest.
When does Plan D'Eau de Mamers have the warmest water?
For swimming, July–September is usually the best call — that's the modeled window when the sea here runs warmest. That applies to the water around Sarthe. Within that window, August is typically the single warmest month.
Who measures the water quality rating, and how?
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 Plan D'Eau de Mamers.
What's the easiest way to reach Plan D'Eau de Mamers?
By car, it's easy — parking is right by the beach. By bus, the nearest stop is Docteur Godard, about ~900 m away. The nearest town is Mamers, about ~900 m away.