France · Haute-Garonne
Baignade Lac de la Thesauque
Haute-Garonne, 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 | 26.8 | 0.1 |
| Thu 3 | 26.4 | 0.1 |
| Fri 4 | 25.9 | 0.1 |
| Sat 5 | 25.9 | 0.1 |
| Sun 6 | 26.3 | 0.2 |
| Mon 7 | 26.8 | 0.1 |
| Tue 8 | 27.0 | 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: Good2018
- 2019: Good2019
- 2020: Good2020
- 2021: Good2021
- 2022: Excellent2022
- 2023: Good2023
- 2024: Good2024
- 2025: Excellent2025
Excellent in the most recent season, and 8 of 8 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 | Good |
| 2019 | Good |
| 2020 | Good |
| 2021 | Good |
| 2022 | Excellent |
| 2023 | Good |
| 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 | 16 |
| Feb | 15 |
| Mar | 16 |
| Apr | 18 |
| May | 20 |
| Jun | 23 |
| Jul | 25 |
| Aug | 26 |
| Sep | 25 |
| Oct | 23 |
| Nov | 20 |
| Dec | 18 |
Location & nearby beaches
Nearby beaches
- 14 km
- Baignade Amenagee de Caraman21 kmHaute-Garonne
- Lac de Saint Ybars25 kmAriège
- Carla-Bayle Plan D'Eau31 kmAriège
Distances calculated as straight-line (haversine) from official coordinates.
Getting there & around
- Easy by car — there's parking close to the beach.
- Bus stop: Roquefoulet Montgeard, about ~740 m away.
Food, stays & town
- Nearest village: Nailloux, about ~1.8 km away.
- 4 places to eat within 1 km Closest is Chez Albert, about ~210 m away.
- 1 place to stay mapped nearby Closest is Camping du lac de la Thesauque, about ~360 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 Baignade Lac de la Thesauque?
Baignade Lac de la Thesauque 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 Showers, Toilets, and Restaurant. There's parking about ~200 m from the beach.
That rating has been consistent: every one of the 8 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, Nailloux, is about ~1.8 km 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 are 4 places to eat within a kilometre — Chez Albert is the closest, about ~210 m away.
Frequently asked questions
Is Baignade Lac de la Thesauque safe to swim in?
Yes, without much reservation. Baignade Lac de la Thesauque holds the top EU Bathing Water classification, Excellent, for 2025, and 8 of 8 classified seasons here have rated Excellent or Good. Its rating has also been trending the right way, moving from Good to Excellent in 2025.
What is the sea temperature at Baignade Lac de la Thesauque today?
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 Haute-Garonne. On the modeled climatology here, August usually runs warmest.
When does Baignade Lac de la Thesauque 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 Haute-Garonne. Within that window, August is typically the single warmest month.
How is bathing water quality actually assessed?
Behind the annual grade: a season of testing for intestinal enterococci and E. coli, reported to the European Environment Agency each spring under the EU Bathing Water Directive. A few countries, Croatia via IZOR included, also publish individual in-season samples ahead of that report, but Baignade Lac de la Thesauque doesn't have one published yet.
Is there parking near Baignade Lac de la Thesauque?
By car, it's easy — parking is right by the beach. By bus, the nearest stop is Roquefoulet Montgeard, about ~740 m away. The nearest town is Nailloux, about ~1.8 km away.