France · Seine-Maritime
Dieppe-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 | 20.9 | 0.7 |
| Thu 3 | 20.8 | 1.1 |
| Fri 4 | 20.9 | 1.3 |
| Sat 5 | 21.1 | 1.0 |
| Sun 6 | 20.9 | 0.3 |
| Mon 7 | 21.0 | 0.6 |
| Tue 8 | 20.8 | 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: Good2017
- 2018: Good2018
- 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 | Good |
| 2018 | Good |
| 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 | 14 |
| Feb | 14 |
| 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
- Puys2.7 kmSeine-Maritime
- Pourville3.5 kmSeine-Maritime
- St-Martin-Plage9.9 kmSeine-Maritime
- Ste-Marguerite-Plage10 kmSeine-Maritime
Distances calculated as straight-line (haversine) from official coordinates.
Getting there & around
- Easy by car — there's parking close to the beach.
- Bus stop: Gustave Rouland, about ~180 m away.
- Nearest ferry landing is about ~1.1 km away.
Food, stays & town
- Nearest town: Dieppe, about ~600 m away.
- 120 places to eat within 1 km Closest is La Laitière, about ~80 m away.
- 14 places to stay mapped nearby Closest is Windsor, about ~220 m away.
- 8 shops nearby, the closest about ~360 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
- Water sports
Is the water clean at Dieppe-Plage?
Dieppe-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. You can park about ~110 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. 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 Pebble shore, Showers, and Toilets. Dieppe — the closest town — sits about ~600 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 sea conditions, see the “Right now” and 7-day outlook panels above. There are 120 places to eat within a kilometre — La Laitière is the closest, about ~80 m away.
Frequently asked questions
Is Dieppe-Plage a safe beach for swimming?
It's about as safe as bathing water gets: Dieppe-Plage's 2025 EU rating is Excellent, the top tier on the scale, and 11 of 11 classified seasons have come back Excellent or Good. It's also held steady at Excellent for 7 straight years.
How cold or warm is the water at Dieppe-Plage today?
Checking in on Dieppe-Plage 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 Seine-Maritime.
Which month has the warmest sea at Dieppe-Plage?
The most reliable stretch for warm water runs through July–September, based on the modeled climatology. That applies to the water around Seine-Maritime.
What does the water quality rating actually measure?
The annual classification — Excellent, Good, Sufficient or Poor — is built from a full season of official testing for intestinal enterococci and E. coli, reported to the European Environment Agency each spring. Some national authorities (Croatia's IZOR among them) also publish individual samples during the season itself; Dieppe-Plage isn't yet covered by that in-season feed.
Can you drive to Dieppe-Plage?
By car, it's easy — parking is right by the beach. By bus, the nearest stop is Gustave Rouland, about ~180 m away. There's a ferry landing about ~1.1 km from the beach. The nearest town is Dieppe, about ~600 m away.