France · Ille-et-Vilaine
Rochebonne
Ille-et-Vilaine, 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 | 21.6 | 0.6 |
| Thu 3 | 21.5 | 0.6 |
| Fri 4 | 21.4 | 0.9 |
| Sat 5 | 21.6 | 0.6 |
| Sun 6 | 21.6 | 0.6 |
| Mon 7 | 21.6 | 0.6 |
| Tue 8 | 21.4 | 1.3 |
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: Sufficient2023
- 2024: Poor2024
- 2025: Poor2025
Poor in the most recent season, and 8 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 | Sufficient |
| 2024 | Poor |
| 2025 | Poor |
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 | 16 |
| May | 19 |
| Jun | 21 |
| Jul | 23 |
| Aug | 24 |
| Sep | 23 |
| Oct | 22 |
| Nov | 19 |
| Dec | 17 |
Location & nearby beaches
Nearby beaches
- Le Minihic609 mIlle-et-Vilaine
- La Hoguette761 mIlle-et-Vilaine
- Le Sillon905 mIlle-et-Vilaine
- Le Pont1.5 kmIlle-et-Vilaine
Distances calculated as straight-line (haversine) from official coordinates.
Getting there & around
- Easy by car — there's parking close to the beach.
- Bus stop: Kennedy, about ~150 m away.
Food, stays & town
- Nearest town: Saint-Malo, about ~3.0 km away.
- 32 places to eat within 1 km Closest is La Caravelle, about ~60 m away.
- 26 places to stay mapped nearby Closest is Hôtel Alpha Océan, about ~70 m away.
- 7 shops nearby, the closest about ~180 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).
- Full-service days
Is the water clean at Rochebonne?
Rochebonne sits on a stretch of coast classed as a coastal bathing site, carrying an official EU Bathing Water rating of Poor 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 Ille-et-Vilaine. You can park about ~90 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 a cooler sea but a quieter beach. Over the 11 classified seasons on record, 8 have come back Excellent or Good — a track record worth checking each year rather than assuming. On site you'll find Toilets, Beach bar, and Restaurant. Saint-Malo — the closest town — sits about ~3.0 km from here.
“Poor” 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 are 32 places to eat within a kilometre — La Caravelle is the closest, about ~60 m away.
Frequently asked questions
Can you safely swim at Rochebonne?
This one calls for caution — Rochebonne's 2025 rating is Poor. Look for posted flags and local advisories before you go in.
How warm is the sea at Rochebonne right now?
Checking in on Rochebonne right now: the water is around 21°C, per the latest reading — the “Right now” panel above tracks it live. That's the reading right off Ille-et-Vilaine.
Which month has the warmest sea at Rochebonne?
July–September tends to be the sweet spot for swimming here, with sea temperatures usually peaking later in that stretch. That applies to the water around Ille-et-Vilaine.
How is the water quality rating measured?
The grade comes from a full season of official sampling for intestinal enterococci and E. coli, reported to the European Environment Agency each spring under the EU Bathing Water Directive, which assigns Excellent, Good, Sufficient or Poor. Some countries (Croatia, via IZOR) also publish individual in-season samples ahead of that report; Rochebonne doesn't have that feed yet.
Can you drive to Rochebonne?
By car, it's easy — parking is right by the beach. By bus, the nearest stop is Kennedy, about ~150 m away. The nearest town is Saint-Malo, about ~3.0 km away.