France · Ain
Lac de Nantua - Plage de la Colonne
Ain, 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 | 25.1 | 0.4 |
| Thu 3 | 25.4 | 0.4 |
| Fri 4 | 25.2 | 0.5 |
| Sat 5 | 24.8 | 0.4 |
| Sun 6 | 24.3 | 0.4 |
| Mon 7 | 24.2 | 0.4 |
| Tue 8 | 24.5 | 0.4 |
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: Excellent2021
- 2022: Excellent2022
- 2023: Excellent2023
- 2024: Excellent2024
- 2025: Excellent2025
Excellent in the most recent season, and 5 of 5 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 | Excellent |
| 2022 | Excellent |
| 2023 | Excellent |
| 2024 | Excellent |
| 2025 | Excellent |
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 | 14 |
| Mar | 15 |
| Apr | 17 |
| May | 20 |
| Jun | 23 |
| Jul | 25 |
| Aug | 25 |
| Sep | 25 |
| Oct | 23 |
| Nov | 20 |
| Dec | 17 |
Location & nearby beaches
Nearby beaches
- 716 m
- 8.9 km
- 10 km
- 13 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: Nantua Esplanade, about ~480 m away.
Food, stays & town
- Nearest village: Nantua, about ~700 m away.
- 17 places to eat within 1 km Closest is L'Embarcadère, about ~140 m away.
- 2 places to stay mapped nearby Closest is L'Embarcadère, about ~130 m away.
- 4 shops nearby, the closest about ~190 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).
- Water sports
Is the water clean at Lac de Nantua - Plage de la Colonne?
Lac de Nantua - Plage de la Colonne 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 Ain. You can park about ~70 m away.
Looking to avoid the busiest weeks? The water is typically warmest around August, with the most reliable swimming window running July–September; outside that stretch you'll find cooler water but a quieter beach. That rating has been consistent: every one of the 5 classified seasons on record has come back Excellent or Good. On site you'll find Toilets, Restaurant, and Parking. Nantua — the closest town — sits about ~700 m from here.
“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 water conditions, see the “Right now” and 7-day outlook panels above. There are 17 places to eat within a kilometre — L'Embarcadère is the closest, about ~140 m away.
Frequently asked questions
Is the water at Lac de Nantua - Plage de la Colonne safe right now?
Generally, yes. Lac de Nantua - Plage de la Colonne's 2025 EU Bathing Water rating is Excellent — the highest tier — backed by 5 of 5 classified seasons rated Excellent or Good. It's also held steady at Excellent for 5 straight years.
How warm is the water at Lac de Nantua - Plage de la Colonne right now?
The panel above shows a sample value of around 25°C. This is placeholder data shown because a live marine-weather feed wasn't reachable — it will be replaced automatically once the feed is available. That's the reading right off Ain.
What's the best month to visit Lac de Nantua - Plage de la Colonne for swimming?
July–September is typically the most reliable swimming window, with the water usually warmest in the second half of summer. That applies to the water around Ain.
How is the water quality rating measured?
The annual classification — Excellent, Good, Sufficient or Poor — is built from a full season of official testing for intestinal enterococci and E. coli, reported to the European Environment Agency each spring. Some national authorities (Croatia's IZOR among them) also publish individual samples during the season itself; Lac de Nantua - Plage de la Colonne isn't yet covered by that in-season feed.
How do you get to Lac de Nantua - Plage de la Colonne?
By car, it's easy — parking is right by the beach. By bus, the nearest stop is Nantua Esplanade, about ~480 m away. The nearest town is Nantua, about ~700 m away.