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 | 24.1 | 0.2 |
| Thu 3 | 23.6 | 0.2 |
| Fri 4 | 23.1 | 0.2 |
| Sat 5 | 23.1 | 0.2 |
| Sun 6 | 23.4 | 0.2 |
| Mon 7 | 23.9 | 0.2 |
| Tue 8 | 24.2 | 0.2 |
Water quality history
Official EEA classification, one rating per bathing season, 2015–2025 — real data reported by national authorities.
- 2015: Excellent2015
- 2016: Excellent2016
- 2017: Excellent2017
- 2018: Excellent2018
- 2019: Excellent2019
- 2020: Excellent2020
- 2021: Excellent2021
- 2022: Excellent2022
- 2023: Excellent2023
- 2024: Excellent2024
- 2025: Excellent2025
Excellent in the most recent season, and 11 of 11 classified years rated Excellent or Good.
- Excellent
- Good
- Sufficient
- Poor
- Not classified
View as table
| Year | Classification |
|---|---|
| 2015 | Excellent |
| 2016 | Excellent |
| 2017 | Excellent |
| 2018 | Excellent |
| 2019 | Excellent |
| 2020 | Excellent |
| 2021 | Excellent |
| 2022 | Excellent |
| 2023 | Excellent |
| 2024 | Excellent |
| 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 | 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
- Plage Du Lac Des Chênes12 kmTarn-et-Garonne
- 16 km
- Berge Du Lot18 kmLot
- Base de Caix19 kmLot
Distances calculated as straight-line (haversine) from official coordinates.
Getting there & around
- By car: there's parking about ~530 m from the beach.
- Bus stop: Montcuq-en-Quercy-Blanc - Lac, about ~340 m away.
Food, stays & town
- Nearest village: Sainte-Croix, about ~1.6 km away.
- 1 place to eat within 1 km Closest is L'Oustal, about ~370 m away.
- 2 places to stay mapped nearby Closest is La Barguelonne, about ~1.2 km away.
- 2 shops nearby, the closest about ~1.2 km 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 Plan D'Eau Saint Sernin?
Plan D'Eau Saint Sernin sits on a stretch of coast classed as a lake bathing site, carrying an official EU Bathing Water rating of Excellent 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 Lot. There's parking about ~530 m from the beach.
That rating has been consistent: every one of the 11 classified seasons on record has come back Excellent or Good. 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, Sainte-Croix, is about ~1.6 km away.
“Excellent” 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's 1 place to eat near the beach — L'Oustal, about ~370 m away.
Frequently asked questions
Should you swim at Plan D'Eau Saint Sernin?
Yes — Plan D'Eau Saint Sernin carries the top EU Bathing Water classification, Excellent, for 2025, and 11 of its 11 classified seasons have rated Excellent or Good. It's also held steady at Excellent for 11 straight years.
What temperature is the sea at Plan D'Eau Saint Sernin right now?
For Plan D'Eau Saint Sernin, the ~24°C figure above is a stand-in value, not a live reading — the marine-weather feed was unreachable when the page last built, and it'll swap in automatically once the feed responds again. That's the reading right off Lot. On the modeled climatology here, August usually runs warmest.
When does Plan D'Eau Saint Sernin have the warmest water?
If you're planning around water temperature, July–September is the window to target — the modeled sea temperature is typically highest then. That applies to the water around Lot. Within that window, August is typically the single warmest month.
How is bathing water quality actually assessed?
Once a year, national authorities report a full season of testing for intestinal enterococci and E. coli to the European Environment Agency, which grades the season Excellent, Good, Sufficient or Poor under the EU Bathing Water Directive. A handful of countries, including Croatia via IZOR, also publish individual in-season samples ahead of that report — Plan D'Eau Saint Sernin doesn't have that feed set up yet.
What's the easiest way to reach Plan D'Eau Saint Sernin?
By car, there's parking about ~530 m from the beach. By bus, the nearest stop is Montcuq-en-Quercy-Blanc - Lac, about ~340 m away. The nearest town is Sainte-Croix, about ~1.6 km away.