France · Vosges
Base de L'Union Nautique
Vosges, 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 | 25.4 | 0.5 |
| Thu 3 | 25.5 | 0.5 |
| Fri 4 | 25.2 | 0.5 |
| Sat 5 | 24.7 | 0.5 |
| Sun 6 | 24.4 | 0.5 |
| Mon 7 | 24.5 | 0.5 |
| Tue 8 | 25.0 | 0.5 |
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 | 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
- Quai Du Locle344 mVosges
- Route D'Epinal349 mVosges
- La Tocade Ramberchamp828 mVosges
- Ramberchamp-Kattendycke1.0 kmVosges
Distances calculated as straight-line (haversine) from official coordinates.
Getting there & around
- Easy by car — there's parking close to the beach.
- Bus stop: Cimetière, about ~1.0 km away.
Food, stays & town
- Nearest town: Gérardmer, about ~900 m away.
- 55 places to eat within 1 km Closest is Les rives du lac, about ~120 m away.
- 17 places to stay mapped nearby Closest is Hôtel Restaurant Beau-rivage, about ~180 m away.
- 6 shops nearby, the closest about ~580 m away
What kind of beach is this?
This is a town beach, woven into the everyday fabric of a city or larger settlement — expect company on warm days, especially through July and August, alongside easy access to shops and services.
Estimated from OpenStreetMap surroundings data (ODbL).
- Families
Is the water clean at Base de L'Union Nautique?
Base de L'Union Nautique 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 Lifeguard, Showers, and Toilets. You can park about ~170 m away.
That rating has been consistent: every one of the 11 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. It's been a consistently reliable spot too — the rating has held at Excellent for 11 straight years. Gérardmer — the closest town — sits about ~900 m from here.
Worth remembering: “Excellent” isn't a live reading, it's an annual grade — Excellent, Good, Sufficient or Poor — set once a year from that season's water samples and describing the average, not this afternoon's conditions. For what the sea is doing right now, check the “Right now” panel and 7-day outlook above. It sits in Vosges. There are 55 places to eat within a kilometre — Les rives du lac is the closest, about ~120 m away.
Frequently asked questions
Is Base de L'Union Nautique a safe beach for swimming?
Yes. Its official 2025 EU Bathing Water rating is Excellent, the top classification, and 11 of the 11 classified seasons on record have rated Excellent or Good. It's also held steady at Excellent for 11 straight years.
How warm is the sea at Base de L'Union Nautique 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 Vosges.
What's the best month to visit Base de L'Union Nautique for swimming?
The most reliable stretch for warm water runs through July–September, based on the modeled climatology. That applies to the water around Vosges.
What's behind the water quality rating shown above?
National authorities sample the water for intestinal enterococci and E. coli bacteria through the bathing season and report the full-season results to the European Environment Agency each spring for the season just finished, which assigns one of four annual classifications — Excellent, Good, Sufficient or Poor — under the EU Bathing Water Directive. Some national authorities, including Croatia's IZOR, also publish individual in-season sample results ahead of that annual report.
How do I get to Base de L'Union Nautique without a car?
By car, it's easy — parking is right by the beach. By bus, the nearest stop is Cimetière, about ~1.0 km away. The nearest town is Gérardmer, about ~900 m away.