France · Somme
Plage Surveillee de Mers Les Bains
Somme, France
On the beach
Right now
Live conditions from Open-Meteo, refreshed hourly.
7-day outlook
7-day marine forecast from Open-Meteo.
Water temperature
Next 7 days, °C
Wave height
Next 7 days, metres
View as table
| Day | Water temp (°C) | Wave height (m) |
|---|---|---|
| Wed 2 | 20.7 | 0.9 |
| Thu 3 | 20.5 | 1.5 |
| Fri 4 | 20.7 | 1.7 |
| Sat 5 | 20.8 | 1.3 |
| Sun 6 | 20.7 | 0.4 |
| Mon 7 | 20.8 | 0.7 |
| Tue 8 | 20.7 | 1.7 |
Water quality history
Official EEA classification, one rating per bathing season, 2015–2025 — real data reported by national authorities.
- 2015: Good2015
- 2016: Sufficient2016
- 2017: Good2017
- 2018: Poor2018
- 2019: Sufficient2019
- 2020: Good2020
- 2021: Good2021
- 2022: Excellent2022
- 2023: Excellent2023
- 2024: Excellent2024
- 2025: Excellent2025
Excellent 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 | Good |
| 2016 | Sufficient |
| 2017 | Good |
| 2018 | Poor |
| 2019 | Sufficient |
| 2020 | Good |
| 2021 | Good |
| 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 | 14 |
| Feb | 13 |
| Mar | 14 |
| Apr | 16 |
| May | 19 |
| Jun | 22 |
| Jul | 24 |
| Aug | 25 |
| Sep | 24 |
| Oct | 22 |
| Nov | 19 |
| Dec | 16 |
Location & nearby beaches
Nearby beaches
- Le Treport-Plage1.3 kmSeine-Maritime
- Mesnil-Val4.7 kmSeine-Maritime
- Criel-Plage6.2 kmSeine-Maritime
- Onival6.7 kmSomme
Distances calculated as straight-line (haversine) from official coordinates.
Getting there & around
- Easy by car — there's parking close to the beach.
- Bus stop: Prairie, about ~260 m away.
Food, stays & town
- Nearest village: Mers-les-Bains, about ~500 m away.
- 17 places to eat within 1 km Closest is La Friterie de l'Esplanade, about ~70 m away.
- 10 places to stay mapped nearby Closest is L'Itinérance, about ~130 m away.
- 4 shops nearby, the closest about ~170 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 Plage Surveillee de Mers Les Bains?
Thinking of swimming at Plage Surveillee de Mers Les Bains? 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 4 straight years. You can park about ~170 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. 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 Pebble shore, Showers, and Toilets. Mers-les-Bains — the closest town — sits about ~500 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 — La Friterie de l'Esplanade is the closest, about ~70 m away.
Frequently asked questions
Is the water at Plage Surveillee de Mers Les Bains safe right now?
Yes. Its official 2025 EU Bathing Water rating is Excellent, the top classification, and 8 of the 11 classified seasons on record have rated Excellent or Good. It's also held steady at Excellent for 4 straight years.
How warm is the water at Plage Surveillee de Mers Les Bains right now?
Right now, the water at Plage Surveillee de Mers Les Bains is measuring around 20°C; see the “Right now” panel above for the latest conditions. That's the reading right off Somme.
What's the ideal time of year to swim at Plage Surveillee de Mers Les Bains?
July–September tends to be the sweet spot for swimming here, with water temperatures usually peaking later in that stretch. That applies to the water around Somme.
How is the water quality rating measured?
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.
Can you drive to Plage Surveillee de Mers Les Bains?
By car, it's easy — parking is right by the beach. By bus, the nearest stop is Prairie, about ~260 m away. The nearest town is Mers-les-Bains, about ~500 m away.