France · Loire-Atlantique
Le Nau
Loire-Atlantique, France
On the beach
Right now
Live conditions from Open-Meteo, refreshed hourly.
7-day outlook
7-day marine forecast from Open-Meteo.
Sea temperature
Next 7 days, °C
Wave height
Next 7 days, metres
View as table
| Day | Sea temp (°C) | Wave height (m) |
|---|---|---|
| Wed 2 | 21.2 | 0.5 |
| Thu 3 | 21.4 | 0.6 |
| Fri 4 | 21.5 | 0.6 |
| Sat 5 | 22.3 | 0.6 |
| Sun 6 | 21.9 | 0.8 |
| Mon 7 | 21.9 | 1.0 |
| Tue 8 | 21.7 | 1.4 |
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 | 23 |
| Aug | 24 |
| Sep | 24 |
| Oct | 22 |
| Nov | 20 |
| Dec | 17 |
Location & nearby beaches
Nearby beaches
- Anse de Toullain695 mLoire-Atlantique
- Plage Benoit854 mLoire-Atlantique
- Baie de Convert1.4 kmLoire-Atlantique
- Baie Du Guec1.6 kmLoire-Atlantique
Distances calculated as straight-line (haversine) from official coordinates.
Getting there & around
- Easy by car — there's parking close to the beach.
- Bus stop: Bois/Plage, about ~150 m away.
Food, stays & town
- Nearest village: Le Pouliguen, about ~500 m away.
- 45 places to eat within 1 km Closest is Les Bains du Nau, about ~80 m away.
- 9 places to stay mapped nearby Closest is Le clein, about ~540 m away.
- 4 shops nearby, the closest about ~770 m away
What kind of beach is this?
This beach sits in a built-up resort setting, with hotels, restaurants and services clustered around it — a full-service stretch of coast that tends to be busy in peak season and quieter outside it.
Estimated from OpenStreetMap surroundings data (ODbL).
- Families
- Water sports
- Full-service days
Is the water clean at Le Nau?
Thinking of swimming at Le Nau? The short answer: its official EU Bathing Water rating for 2025 is Excellent — the highest official classification under the EU bathing-water assessment. That rating is set once a year under the EU Bathing Water Directive, from a full season of testing for intestinal enterococci and E. coli reported to the European Environment Agency the following spring, so the 2025 season's grade appeared in spring 2026 and the 2026 season won't be graded 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's been a consistently reliable spot too — the rating has held at Excellent for 11 straight years. There's parking about ~190 m from the beach.
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 a cooler sea but a quieter beach. That rating has been consistent: every one of the 11 classified seasons on record has come back Excellent or Good. On site you'll find Lifeguard, Showers, and Toilets. The nearest town, Le Pouliguen, is about ~500 m away.
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 Loire-Atlantique. There are 45 places to eat within a kilometre — Les Bains du Nau is the closest, about ~80 m away.
Frequently asked questions
Should you swim at Le Nau?
Yes, without much reservation. Le Nau holds the top EU Bathing Water classification, Excellent, for 2025, and 11 of 11 classified seasons here have rated Excellent or Good. It's also held steady at Excellent for 11 straight years.
What's the current water temperature at Le Nau?
The latest reading puts the sea at Le Nau at around 21°C — the “Right now” panel above has the full live picture. That's the reading right off Loire-Atlantique. On the modeled climatology here, August usually runs warmest.
When does Le Nau 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 Loire-Atlantique. Within that window, August is typically the single warmest month.
Where does the water quality rating come from?
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 Le Nau doesn't have one published yet.
Is there parking near Le Nau?
By car, it's easy — parking is right by the beach. By bus, the nearest stop is Bois/Plage, about ~150 m away. The nearest town is Le Pouliguen, about ~500 m away.