France · Seine-Maritime
Le Treport-Plage
Seine-Maritime, 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 | 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: Sufficient2015
- 2016: Good2016
- 2017: Excellent2017
- 2018: Excellent2018
- 2019: Excellent2019
- 2020: Excellent2020
- 2021: Good2021
- 2022: Excellent2022
- 2023: Excellent2023
- 2024: Excellent2024
- 2025: Excellent2025
Excellent in the most recent season, and 10 of 11 classified years rated Excellent or Good.
- Excellent
- Good
- Sufficient
- Poor
- Not classified
View as table
| Year | Classification |
|---|---|
| 2015 | Sufficient |
| 2016 | Good |
| 2017 | Excellent |
| 2018 | Excellent |
| 2019 | Excellent |
| 2020 | Excellent |
| 2021 | Good |
| 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 | 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
- 1.3 km
- Mesnil-Val3.4 kmSeine-Maritime
- Criel-Plage4.9 kmSeine-Maritime
- Onival8.0 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: Casino, about ~60 m away.
Food, stays & town
- Nearest village: Le Tréport, about ~1.2 km away.
- 36 places to eat within 1 km Closest is Café Plage, about ~60 m away.
- 15 places to stay mapped nearby Closest is Le Richelieu, about ~210 m away.
- 3 shops nearby, the closest about ~260 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 Treport-Plage?
Le Treport-Plage sits on a stretch of coast classed as a coastal 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 Seine-Maritime. There's parking about ~150 m from the beach.
Over the 11 classified seasons on record, 10 have come back Excellent or Good — a track record worth checking each year rather than assuming. 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 4 straight years. The nearest town, Le Tréport, is about ~1.2 km away.
That “Excellent” label comes from a full season of official water sampling, not a single test — it's one step on a four-point scale (Excellent, Good, Sufficient, Poor) reassessed once a year. Today's actual conditions can differ from the seasonal average, so for a live snapshot see the “Right now” and 7-day outlook panels above. There are 36 places to eat within a kilometre — Café Plage is the closest, about ~60 m away.
Frequently asked questions
Is Le Treport-Plage safe to swim in?
Yes — Le Treport-Plage carries the top EU Bathing Water classification, Excellent, for 2025, and 10 of its 11 classified seasons have rated Excellent or Good. It's also held steady at Excellent for 4 straight years.
What temperature is the sea at Le Treport-Plage right now?
The latest reading puts the sea at Le Treport-Plage at around 20°C — the “Right now” panel above has the full live picture. That's the reading right off Seine-Maritime. On the modeled climatology here, August usually runs warmest.
When should you plan a swimming trip to Le Treport-Plage?
If you're planning around water temperature, July–September is the window to target — the modeled sea temperature is typically highest then. That applies to the water around Seine-Maritime. Within that window, August is typically the single warmest month.
Who measures the water quality rating, and how?
It's based on official water samples: authorities test for intestinal enterococci and E. coli through the season, then report the full-season results to the European Environment Agency each spring, which assigns one of four grades — Excellent, Good, Sufficient or Poor. A few national authorities, including Croatia's IZOR, also publish individual samples during the season itself, ahead of that annual report — that isn't yet available for Le Treport-Plage.
What's the easiest way to reach Le Treport-Plage?
By car, it's easy — parking is right by the beach. By bus, the nearest stop is Casino, about ~60 m away. The nearest town is Le Tréport, about ~1.2 km away.